Post job

Applications developer jobs in Illinois

- 2,304 jobs
  • Backend Java Developer

    Anagh Technologies Inc.

    Applications developer job in Rosemont, IL

    Hello, We have 4 urgent openings for a "Backend Java Developer". These are hybrid roles in day per week onsite (Wednesdays) - Local candidates only Only looking for candidates who can work on W2 Strictly no C2C or third-party vendors Client: Ahold Delhaize (AD USA) Title: Backend Java Developer Location: Rosemont, IL Onsite Requirement: 1 day per week onsite (Wednesdays) - Local candidates only Employment Type: Contract to Hire Rate: $65 - $70/hr on 1099 Citizenship: USC and GC Only Tech Stack: Java, Spring Boot, AWS or Azure Ahold Delhaize is seeking an experienced Backend Java Developer to support large-scale, enterprise-level initiatives within their digital and customer-facing platforms. This position is ideal for a strong backend engineer who thrives in building scalable applications, optimizing performance, and contributing to enterprise architecture. If you are passionate about designing reliable backend systems and you want your work to make a measurable impact, this is an excellent opportunity. Position Overview The Backend Java Developer will design and build high-performing backend services that power key business applications. You will work across multiple technology domains, help modernize existing systems, drive architectural discussions, and mentor junior developers. The role blends hands-on coding, architectural input, and team collaboration. Key Responsibilities • Lead hands-on backend development for enterprise-grade applications • Design, develop, and maintain complex software components across multiple tech domains • Build reusable, scalable libraries and backend services • Ensure stability, scalability, and performance of the platform • Develop solutions aligned with established technical design standards and best practices • Lead story grooming, feature-level design sessions, and development planning • Improve code quality, development accuracy, and project delivery timelines • Conduct detailed code reviews and guide junior developers • Support distributed system development and cloud-based architecture • Collaborate with cross-functional teams in Agile environments • Mentor junior engineers and support knowledge transfer Required Skills • 5+ years in a Senior Developer capacity working on enterprise applications • 5+ years developing backend services in Java • Strong experience building and consuming APIs • 3+ years working with AWS or Azure to build cloud-native architectures • Solid understanding of service-oriented architecture and event-driven systems • Strong knowledge of Java 8+ • Hands-on experience with Spring Boot, Spring Framework, Spring Data, Spring Cloud, and Spring Security • Experience with relational and NoSQL databases and ORM tools • Strong experience developing distributed systems and microservices • Familiarity with fault-tolerant, high-availability system design • Experience with JUnit, TestNG, Mockito, and E2E testing frameworks • Understanding of Agile, TDD, CI/CD practices • Strong communication skills and ability to mentor junior engineers Preferred Qualifications • Experience supporting large-scale customer-facing platforms • Background in cloud-first modernization projects • Experience working in hybrid environments with cross-functional teams ABOUT US: Anagh Technologies is a technical consulting firm specializing in UI, Front-End, and Full-Stack web technologies. We currently have 30+ positions in Angular, React, Node, and Java. If technically strong, we can 100% get you an offer within 2 weeks MAX, as we will consider you for multiple roles at once. If you are interested and are available, please email me your resume and contact information to jeff.r AT anaghtech.com. Thank you for your time.
    $65-70 hourly 5d ago
  • Senior Software Engineer

    Harnham

    Applications developer job in Chicago, IL

    Senior Software Engineer - Build Next-Gen Conversational Platforms 💰 Salary: $230K base + 15% bonus + equity About the Opportunity Harnham is working with a fast-growing AI technology company that is building a next-generation agentic voice platform for enterprise-scale customer engagement. This organization partners with Fortune 50 businesses across healthcare, finance, and retail and is backed by leading investors with over $25M in funding. They are scaling rapidly and seeking an experienced Senior Software Engineer to join their engineering team and help shape the future of conversational AI. The Role You'll design and build core platform components, working on backend services and APIs that power real-time voice applications. This role requires strong CS fundamentals, experience in scalable architectures, and collaboration with ML engineers and product teams. Key Responsibilities Develop backend services and APIs for high-concurrency, real-time applications Design scalable, secure architecture for cloud-based systems Work across backend and some frontend layers (full-stack experience is a plus) Implement solutions in AWS ecosystems (EKS, Lambda, S3) Optimize data models and pipelines using Postgres Collaborate with ML engineers and DevOps to integrate AI models into production Mentor junior engineers and establish best practices in coding, testing, and CI/CD What We're Looking For 6-7+ years of software engineering experience Strong CS fundamentals (data structures, algorithms, architecture) Experience with AWS services and containerized environments (Docker/Kubernetes) Proficiency in backend development (Java, Python, or similar) Exposure to frontend frameworks is a plus Familiarity with distributed systems and high-performance architectures Why Apply? Competitive compensation + bonus + equity Work on industry-disrupting AI solutions Collaborative culture with real impact Relocation support and hybrid flexibility
    $230k yearly 1d ago
  • Sharepoint Developer (with some .net experience)

    RSM Solutions, Inc. 4.4company rating

    Applications developer job in Chicago, IL

    Thanks for taking time to stop by and take a look at the SharePoint / .net Developer role I posted here on LinkedIN, I appreciate it quite a bit. I realize that looking for work - especially now - kinda stinks. So, I am going to try and make this as pain free as possible. Allow me to introduce myself just a bit. My name is Tom Welke, I am Partner & VP at RSM Solutions, Inc. I have been recruiting technical talent for a long long time and been in the tech sector for longer than that. I'm saying all this not to gloat, I am saying this so that you know that you are actually dealing with a real, live, breathing human. Not a bot, not an AI engine. Like I said, if I can make this easier, I will gladly do my best to try. That being said, you will see some humor in this JD... So, let's get down to it... As with just about every role I work on, social fit is important. Granted, there will be some 'gotta have's otherwise someone's going to have a coronary' from a technical standpoint (you will see that as your read this JD)...but those social fit characteristics are really important as well. Here are some of 'em: This one is for my favorite law firm. Yep, there is such a thing... I have worked with them quite a bit over the past few years, so I know these guys pretty well. Sometimes, people will think that all law firms are the same. Starchy, stiff upper lip, and kinda dull. These guys are definitely not starchy or so ego-filled that you can't get anything done without an act of Congress. So, if you function well in an environment where - yes - they are professional, but also one where they focus on actually getting stuff done, you will do just fine here. There is a lack of micro-management here. But, here's the caveat. It means you don't need to be micro-managed. If you are the kind of person that does their best work wherever they go, and is thinking ahead as they work (in other words, if you go this way, you will run into a wall...so, you don't run into the wall and go a different direction), you will do just fine here as well. This role is being done onsite in downtown Chicago. We are really only looking to work with candidates that are already in the greater Chicago metro area for this role. In addition, I can only work with US Citizens of Green Card Holders for this one. So, if you are an H1, OPT, EAD, H4, F1, STEM Visa holder, I won't be able to work with you, unfortunately. This role is permanent and fully benefitted (life, dental, health, all the goodies) For this role, we are seeking - as you might have guessed from the title - a SharePoint Developer with .net development experience. This role is for someone who looks at their work, not as tasks, but from a wider angle lens. In other words, you will be working on everything from requirements gathering, documentation, process flow diagramming, dev, test and deployment. Along that process of seeing that 'wide angle lens', you will - inevitably - find that what is asked for isn't really going to solve the issue. So, if you have been that person that challenges assumptions, and asks clarifying questions, we will be on the right track. You will, primarily, work with SharePoint Online and Microsoft's development stack, including .Net, ASP.Net, VB.Net, SPFx, MVVM and MVC Patterns, and C#. You will be working on a mix of projects, including dev work from scratch, working off of apps that already exist, 3rd party integration work, and senior level support of your code. The teams you will be working with are risk & compliance, marketing and administration within the firm. You will be a part of a 9 person team. All of these team members are, primarily, .net architects and developers. You will be focusing, primarily, on SharePoint development in this role and working alongside your other teammates. Here are some of the main responsibilities (this is not an exhaustive list...most people reading this know by now that you will be working with a team...and 'other projects as assigned' are a standard with just about any dev role): Design, developer, validate & implement SharePoint and .net apps to solve complex challenges using SharePoint Online. Maintain, enhance and refactor existing SharePoint and .net based applications to optimize the existing application portfolio, while staying up to date with other dependencies. Manage data integration between SharePoint Online applications and 3rd party solutions using fun stuff like Stored Procedures, SSIS, DTS, SharePoint Lists and other data integration middleware. Here is what we are seeking At least 7 years of SharePoint development experience. This 7 years of experience will need to include experience with ASP.Net, VB.Net, C#, SPFx, MVVM, and MVC patterns. At least 2 projects in your background where you were the only SP or .net developer working on that project from start to finish. At least 6 years of experience with Sql Server 2019 or newer. This experience will need to include SSRS and SSIS. At least 5 years of experience with Azure DevOps or TFS. This should include build/release engineering, pipeline, management for software web applications, test manager and test automation. Experience with IIS administration would be great to see. Experience with IntApp Integrate (or similar tools like Biztalk, MQ, Oracle Fusion, etc) would be great to see. Experience with PowerAutomate, K2 BlackPearl, or IntApp Flow would be great to see. Experience with HTML, CSS, XML, JavaScript, VB Script, Python, TCL, or Pearl would be great to see.
    $83k-109k yearly est. 5d ago
  • Database developer with LIMS SQL Oracle

    Fustis LLC

    Applications developer job in Deerfield, IL

    Title Database developer with LIMS SQL Oracle Visa: USC, GC, GC-EAD and H4-EAD,TN,L2 Duration: 6+ Month 5 plus years experience: LIMS SQL Oracle Job Description: Qualifications: • LIMS development and configuration skills • Solid understanding of Build/ Deployment Process • Strong experience of Labvantage LIMS version 8 and above • Strong analytical, communication, interpersonal and organization skills required • Ability to work independently, under minimal direct supervision • Advanced technical knowledge of Java modules and frameworks including web services, hibernate, and JMS • Experience with Jasper Reports is a plus • Should have good command on SQL Queries (able to write complex queries) either in Oracle or MS SQL. • Experience of Java EE server (Oracle WebLogic Server, Red Hat JBoss Enterprise Application Platform, or IBM WebSphere Application Server) Best Regards, Jaideep Shastri Sr. Technical Recruiter || FUSTIS LLC ************ (O) X 106 | ************ (D) | **************************
    $70k-94k yearly est. 2d ago
  • Senior C++ Developer

    Programmers.Io 3.8company rating

    Applications developer job in Chicago, IL

    Duration: 6 months Qualifications - At least 8 years of professional experience with significant exposure to large complex projects with cross functional teams. - Strong Experience in developing secure, low-latency enterprise level applications in Linux environment using C (including C1417), Boost and STL libraries. - Experience in working with cloud technologies, especially on Azure ecosystem would be highly preferred. - Experience in developing highly secure code by following guidelines like OWASP, NIST would be strongly desirable. - Solid background in relational/document-based databases. - Experience in developing high performing RESTful web services with database connectivity. - Experience in working with scripting languages -Bash, Python and the like. - Exposure to C unit testing frameworks would be desirable. Tasks / responsibilities - Develop and maintain massive existing C codebase pertaining to Security Development Team. - Building and maintaining reusable C components/libraries for future use. - Responsible for efficiently working with other teams in the organization to help them upgrade to latest client-side libraries in our quest to modernize the C stack. Best Regards, Dipendra Gupta Technical Recruiter *****************************
    $89k-126k yearly est. 4d ago
  • Lead Software Engineer

    Tag-The Aspen Group

    Applications developer job in Chicago, IL

    About the Company The Aspen Group (TAG) is one of the largest and most trusted retail healthcare business support organizations in the U.S., supporting over 16,000 healthcare professionals across 1,200+ health and wellness offices in 46 states. Our brands, including Aspen Dental, ClearChoice Dental Implant Centers, WellNow Urgent Care, Chapter Aesthetic Studio, and AZPetVet, benefit from TAG's comprehensive suite of centralized business support services designed to enhance growth and provide high-quality healthcare experiences at scale. Together, we aim to make healthcare smarter, better, and more accessible for everyone. About the Role To support our rapid growth and technological evolution, we are seeking a Lead Software Engineer to join our expanding IT team. We're hiring two Lead Software Engineers on our full-stack team: one who leans Front-End and one who leans Back-End. You'll own mission-critical services (RESTful APIs, data streaming, rules engines) across microservices, set technical standards, and mentor engineers while collaborating with product and data science. You'll also help integrate AI models into production software and keep our products secure and compliant. Responsibilities Lead API and data-streaming service development used across TAG brands. Build and optimize systems for reusability, scalability, and maintainability; drive design patterns, code quality, and testing. Mentor engineers; influence architecture & best practices (technical leadership without direct people management). Partner with product & data science; participate in code reviews; stay current with emerging tech (including AI in software). Qualifications 10 years building large-scale software; ~5 years leading engineers/technical direction. Required Skills Strong in Python, Go, or C#; expert in REST; solid with GraphQL integrations. Proficient with SQL (MySQL/PostgreSQL), cloud (AWS/GCP/Azure), CI/CD, and Kubernetes. Experience integrating AI/ML models into software; security best practices/HIPAA awareness. Front-End-leaning role: deep experience with a modern SPA framework (e.g., React/TypeScript) and design-system driven UI. Back-End-leaning role: depth in distributed systems, data streaming, and service performance/observability. (Microservices & rules engines a plus.) Preferred Skills Healthcare tech exposure and HIPAA experience (bonus, not required). Pay range and compensation package Annual pay range: $167,000-$197,000. A generous benefits package that includes paid time off, health, dental, vision, and 401(k) savings plan with match. Equal Opportunity Statement If you are an applicant residing in California, please view our privacy policy here.
    $167k-197k yearly 1d ago
  • Senior Software Engineer

    Keycare

    Applications developer job in Chicago, IL

    Job Title: Senior Software Engineer Company: KeyCare, Inc. Employment Type: Full-Time Salary: $115,000-$150,000 About Us: KeyCare is unlocking the future of virtual care! Our mission is to increase access to convenient and cost-effective care on a single platform connected to our nation's health systems. Position Overview: As a Senior Software Engineer at KeyCare, you will join our vibrant and forward-thinking team, where we harness the power of technology to create impactful solutions for real-world challenges in the Healthcare industry. We are searching for a Senior Software Engineer who is passionate about problem-solving, adaptable to diverse technologies, and excited to contribute to a collaborative and dynamic work environment. Key Responsibilities: Innovative Design and Development: Lead the design, development, and implementation of software applications on the Azure platform, bringing innovative solutions to life. Cloud Mastery: Utilize your Azure expertise to manage and optimize cloud-based applications, ensuring they are scalable, secure, and efficient. NodeJS and Azure Functions: Develop and maintain high-performance applications using NodeJS, TypeScript and Azure Function Apps. DevOps Excellence: Implement and uphold DevOps practices, including containerization and building robust deployment pipelines to ensure smooth, automated workflows. Operational Excellence: Measure performance, analyze application telemetry, and proactively identify and address potential issues to ensure optimal application operation. Creative Problem Solving: Bring your analytical and creative problem-solving skills to tackle complex challenges and develop innovative solutions. Collaborative Spirit: Work closely with cross-functional teams, including product managers, designers, and fellow engineers, to deliver top-tier software solutions. Mentorship: Guide and mentor junior engineers, fostering a culture of continuous learning and growth. Qualifications: Experience: 5+ years of professional experience in software development, with a strong focus on cloud-based applications. Cloud Expertise: Proven experience with Azure or comparable cloud platforms. Technical Skills: Proficiency in NodeJS and TypeScript System design experience (building robust, secure, and scalable systems with several components, integrations with 3rd-party APIs, etc.) Experience with Azure Function Apps or comparable serverless platforms Additional experience with React and modern web frameworks is highly desirable Knowledge of Epic Health Systems, Electronic Health Records (EHRs), HL7 standard and interoperability, etc. is a plus DevOps Knowledge: Familiarity with DevOps practices, including containerization (Docker, Kubernetes) and building CI/CD pipelines (e.g. GitHub Actions). Operational Excellence: Ability to measure performance, analyze application telemetry, and proactively identify and resolve potential issues. Problem-Solving Skills: Strong analytical and creative problem-solving abilities. Adaptability: Ability to quickly adapt to unfamiliar technologies and methodologies. Collaboration: Excellent communication and teamwork skills. Education: Bachelor's degree in computer science, Engineering, or a related field, or equivalent work experience. Benefits: Eligible for company benefits upon package roll out: Medical Vision Dental Life Insurance Disability Unlimited PTO KeyCare is an Equal Opportunity/Affirmative Action Employer. We encourage all qualified applicants to apply. KeyCare is committed to its evolution towards a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, ethnicity, religion, gender or gender identity, sexual orientation, age, marital status, disability, sex, country of origin, or veteran status.
    $115k-150k yearly 3d ago
  • AS400 Programmer Analyst / RPG Developer,25-14051

    Teambradley, Inc.

    Applications developer job in Ashton, IL

    The Short Scoop Bring your expertise in AS400 and RPG programming to a company where technology fuels innovation in manufacturing. My client is looking for a developer who thrives in solving problems, building reliable systems, and keeping operations running smoothly. This is a chance to work in a collaborative IT team where your impact will be felt across production, logistics, and business functions. Location: Ashton, IL area Status: Full-time perm - On site 100% Why You Should Apply Annual bonus program - up to 15% Excellent benefits: health, dental, disability & life insurance, profit sharing, 401(k), wellness and fitness programs Generous vacation, 11 paid holidays, and personal time Opportunity to work with modern IBM I-Series systems and play a key role in mission-critical operations Compensation range: $90,000 to $130,000 annually What You'll Be Doing Designing, developing, and implementing software using RPG/RPGLE, SQL, and CLLE Supporting existing business applications and building new solutions in RPGLE and SQLRPGLE Managing and resolving IT service requests through a ticketing system Providing after-hours support when needed Creating and maintaining technical documentation, process flows, and user manuals About You Be able to do the job as described. Strong skills with RPG, RPGLE, SQLRPGLE, and CLLE Knowledge of Infor/Infinium ERP, GXS/TrustedLink EDI, or IBM I-Series upgrades a plus Comfortable working hands-on in a manufacturing IT environment Strong analytical problem-solver who thrives in a team setting How To Apply We'd love to see your resume, but we don't need it to have a conversation. It is as easy as one, two, three! Send an email directly to me, *********************************** and tell me why you're interested. Message me here on LinkedIn. If you do have your resume ready to go, apply now on this site. Setting Expectations We'd love to help every single person who is interested and applies to this role. Unfortunately, too many people apply who don't appear capable of doing the job. We apologize in advance, but we will not be able to respond directly to all submissions. Sponsorship is not an option for this role. This client is an Equal Opportunity Employer This is NOT A REMOTE ROLE! TBI Id No: 25-14051, AS400 Analyst Programmer / RPG Developer
    $90k-130k yearly 2d ago
  • Senior Back End Developer - Distributed Systems (C# or Golang)

    Access Search, Inc.

    Applications developer job in Chicago, IL

    Our client, a fast-growing organization developing secure, scalable technologies for next-generation AI applications, is seeking a Backend Engineer to join their core platform team. In this role, you'll help build and refine the foundational services that power authentication, observability, data flows, and high-availability systems across a distributed ecosystem. This is an opportunity to work on complex backend challenges while shaping the infrastructure that supports mission-critical applications. What You'll Do Develop, enhance, and support backend services that form the foundation of the platform. Build and maintain core authentication and authorization capabilities. Apply principles of Domain-Driven Design to guide how services and components evolve over time. Architect, extend, and support event-sourced systems to ensure durable, consistent operations at scale. Participate in API design and integration efforts across internal and external stakeholders. Implement and support messaging frameworks (e.g., NATS) to enable reliable service-to-service communication. Maintain and improve observability tooling-including metrics, tracing, and logging-to ensure healthy system performance. Work closely with infrastructure, DevOps, and engineering teams to ensure robust, secure, and maintainable operations. What You Bring 3-6+ years of experience as a backend engineer. Strong knowledge of distributed systems and microservices. Proficiency in at least one modern backend programming language (C#, Go, Rust, etc.). Practical experience with IAM concepts and authentication/authorization frameworks. Exposure to event-sourcing patterns, DDD, and common messaging systems (e.g., NATS, Kafka, SNS, RabbitMQ). Familiarity with Redis or similar in-memory caching technologies. Experience working with observability tools such as Prometheus, Jaeger, ELK, or Application Insights. Understanding of cloud-native environments and deployment workflows (AWS, Azure, or GCP). Why This Role Is Compelling You'll contribute directly to a foundational platform used across an entire organization-impacting performance, reliability, and security at every layer. If you enjoy solving distributed-system challenges and working on complex, high-scale backend services, this is a strong match. #BackendEngineering #DistributedSystems #PlatformEngineering #CloudNative #SoftwareJobs
    $90k-117k yearly est. 1d ago
  • CAD Senior Developer

    Pyramid Consulting, Inc. 4.1company rating

    Applications developer job in Lisle, IL

    Immediate need for a talented CAD Senior Developer. This is a 06+months contract opportunity with long-term potential and is located in Lisle, IL (Hybrid). Please review the job description below and contact me ASAP if you are interested. Job ID: 25-92210 Pay Range: $60 - $65/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Responsibilities: Primary responsible of CAD custom development with deep understanding of a multi-CAD environment and its integration to PLM & PDM systems. Teamcenter, NX, 3DX, Enovia, CATIA and other custom integrations. As a CAD Senior Developer, you will be responsible key in-flight projects and enhancements to the CAD ecosystem, not limited to projects such as OrderBuilder and Framebuilding and products such as SAGE, Post-Processing schedule tasks, Dispatcher Translations & Supplier Exchange. Key Requirements and Technology Experience: Key skills; CAD, C/C++, Python, Teamcenter >5 years of experience in multi-CAD engineering environments, where you have worked as an automotive engineer building 2D CAD drawings and 3D CAD models in NX and CATIA, and SolidWorks, AutoCAD, and/or Creo as a plus Experience in C/C++ and Python and have worked with CAD tools to develop integrations. Built utilities using C++ and Python along with CAD tools. 3-5 years of experience customizing CAD tools to build programs and utilities within the CAD & Engineering environments to auto-generate CAD models or calculate design context / positioning information through automation Strong skills with C++, Python, .NET Framework (C# is a must, Visual Basic & DOS Batch Programming / Powershell nice to have) Experience with DevSecOps & Agile methodologies, where you are familiar with key source control and CI/CD pipeline concepts, as well as participating in agile ceremonies and writing good agile epics, features, and stories Strong communicator - ability to speak with engineers at a technical level and translate that into key IT deliverables and functional/technical requirements Other Requirements: Ability to be in office 4 days a week (Mon-Thurs) onsite at the Lisle International Headquarters Our client is a leading IT Industry, and we are currently interviewing to fill this and other similar contract positions. If you are interested in this position, please apply online for immediate consideration. Pyramid Consulting, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. By applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy here.
    $60-65 hourly 5d ago
  • Sr Epic Application Analyst

    Binarybees Business Solutions LLC

    Applications developer job in Chicago, IL

    Type : Permanent Role REMOTE ROLE MUST BE Citizen or Green Card Experience working in a hospital or other health care organization. This position develops, builds, and modifies Epic applications. Writes documentation specifications, fact-finding and analyses. results and proposes solutions or recommendations. Builds, configures and/or modifying applications using existing application tools. This role performs complex analysis, design, development, testing and support services for Epic applications. Leads and monitors midsize to large scale projects within multiple functional departments. Exemplifies the Rush mission, vision and values and acts in accordance with Rush policies and procedures. Responsibilities •Leads and monitors midsize to large scale projects within multiple functional departments. •Performs complex designs, implements, maintains, and provides ongoing optimization and support for Epic clinical applications. •Performs workflow assessments, capture business needs, and analyze internal systems to determine functional requirements for optimal utilization of Epic applications. •Works within cross-functional team and with end-users to achieve application integration to meet clinical needs. •Performs builds, upgrades, and system enhancements as needed. •Supports applications throughout all phases of implementation. •Delivers post-implementation training, support, troubleshooting, and maintenance. •Configures vendor applications and products. •Maintains system documentation and develops system specifications and procedures. •Defines and documents user requirements. •Applies project planning and project management methodologies. •Coordinates and leads short duration projects; monitoring project process, progress and results. •Develops test plans, prepares test data and performs system testing. •Provides on-site user support during implementations. •Takes on-call for system application support at scheduled times. •Audits data entered by end users. •Troubleshoots and tracks issues and problems. •Applies systems development methodology to solve problems. •Handles multiple assignments simultaneously. •Other duties as assigned. Other Information Required Job Qualifications: •Bachelor's degree. •5 years of Epic application experience. •An Associate degree and seven (7) years of Epic application experience will be accepted in lieu of a Bachelor's. •Epic certification(s). •Demonstrated ability to effectively utilize system tools to meet functionality needs of users including proficiency with information systems technology such as Microsoft Office Products. •Experienced planning and organizing day-to-day activities, effectively managing more than one task, and meeting established deadlines. •Experienced in leading projects, providing expert consultative guidance and direction on change initiatives, effectively dedicating time across more than one project, and meeting established deadlines. •Experience leading meetings between business stakeholders, technical resources, and third parties for business requirements and technical solutions. •Experienced working with a diverse, multi-disciplinary team, and interacting with all levels of the organization. •Detail oriented, strong analytical, organizational, and problem-solving skills. •Excellent oral and written communication skills with technical and clinical audiences. •Ability to troubleshoot, research, and solve technically challenging problems involving integrated systems. Preferred Job Qualifications: •Experience working in a hospital or other health care organization.
    $85k-114k yearly est. 4d ago
  • Senior Python Developer

    Systechcorp Inc.

    Applications developer job in Chicago, IL

    Design & build production-grade services and APIs (FastAPI / Django / Flask) using clean, well-tested Python. Architect scalable systems (microservices, event-driven patterns, async I/O, caching) with high availability and failover. Data & storage: model schemas; write efficient SQL; integrate with Postgres/MySQL, caching (Redis) Performance & reliability: profile (cProfile, py-spy), tune hot paths, apply back-pressure, circuit breakers, retries, and idempotency. Security & compliance: enforce authN/Z, secrets management, secure coding, dependency hygiene (SCA), and data protection. DevOps & quality: code reviews, automated testing (pytest), static typing (mypy/pyright), linting, and CI/CD best practices. Cloud & platform: containerize ; deploy to Kubernetes or serverless (Azure Functions); manage IaC (Terraform). Observability: instrument with OpenTelemetry; create actionable dashboards/alerts Minimum qualifications 10+ years of professional software engineering with Python in production. Deep expertise with at least one Python web framework (FastAPI, Django, or Flask) and modern async programming. Strong CS fundamentals: algorithms, data structures, and concurrency Proven experience designing distributed systems and event-driven architectures. Solid SQL/ORM experience (SQLAlchemy/Django ORM) and schema design. Mastery of testing (unit/integration/contract), CI/CD (GitHub /Azure DevOps), and release strategies. Hands-on with cloud (Azure), containers, Kubernetes, and infrastructure automation. Excellent communication; ability to lead cross-functional initiatives. Nice to have : Security background: OAuth2/OIDC, Key Vault/Secrets Manager, threat modeling, SDLC governance. FinTech domain experience Front-end familiarity (React) for API-consumer alignment.
    $83k-108k yearly est. 1d ago
  • Senior Java Software Engineer

    ESB Technologies

    Applications developer job in Chicago, IL

    We are looking for a Java Developer to analyse, design, code, and test Java/HTML/CSS/SQL code and web applications. What You'll Do Analyse business requirements to determine appropriate technology solutions Write code, complete programming, perform testing, and debugging of web applications Design and implement web services Create SQL queries and database objects Work with non-technical end users as needed Follow department standards and methodologies Interact and communicate effectively with all levels of staff, senior management, and customers Provide ad-hoc reporting and analysis as required What You'll Need React and Unit testing for this one is a must. Required: 9 years of experience with Java 8, 11, and higher versions 5 years of experience with React and Unit Testing 6 years of experience with SQL 6 years of experience with JavaScript 6 years of experience with CSS 5 years of experience with Bootstrap 5 years of experience with JPA (Java Persistence API) 5 years of experience with JQuery 5 years of experience with Spring Framework (including MVC) Experience in agile development processes, especially Scrum Excellent communication and interpersonal skills Ability to work well individually and in a team environment Preferred: 6 years of experience with Eclipse IDE 5 years of experience with AWS Cloud (CodeCommit, CodeBuild, CodePipeline, etc.) 3 years of experience with Apache Tomcat/TomEE 3 years of experience with JUnit & Selenium 3 years of experience with Python 3 years of experience with Jira & Confluence
    $83k-108k yearly est. 4d ago
  • Senior Dotnet Developer

    Krasan Consulting Services

    Applications developer job in Springfield, IL

    **************It's a Hybrid role - initial 30 days onsite, later 2/3 days onsite per week The organization is seeking a highly skilled and results-driven Senior .NET Developer to contribute to the design, development, and maintenance of enterprise-scale web applications. The ideal candidate will bring extensive hands-on experience in Angular, Entity Framework (EF Core), and .NET technologies, combined with strong collaboration and problem-solving abilities within an Agile team environment. Develop dynamic Kendo UI interfaces. This role will play a key part in building responsive, high-performing, and scalable applications that meet critical business and user needs. Key Responsibilities Application Design & Development Design, develop, and implement robust front-end and back-end solutions using Angular, .NET (C#), and Entity Framework Core (EF Core). Develop dynamic and interactive user interfaces leveraging Kendo UI controls and reusable components. Ensure system scalability, performance optimization, and maintainability through clean and modular coding practices. Collaborate closely with architects and analysts to translate business requirements into high-quality software solutions. System Integration & Maintenance Integrate RESTful APIs and third-party services to deliver seamless user experiences. Maintain and enhance existing applications by identifying performance bottlenecks, debugging issues, and implementing improvements. Conduct thorough code reviews and enforce best practices for maintainability, security, and compliance. Agile Collaboration Participate actively in Agile ceremonies-including sprint planning, daily stand-ups, reviews, and retrospectives-to ensure continuous delivery and alignment with project goals. Work collaboratively with cross-functional teams including UI/UX designers, QA testers, and DevOps engineers. Contribute to sprint commitments, story estimations, and backlog refinements to ensure predictable delivery. Quality Assurance & Documentation Write comprehensive unit tests and participate in automated testing to ensure code quality. Maintain accurate technical documentation, design specifications, and version control using Git-based repositories. Support continuous integration and deployment pipelines, ensuring smooth transitions between development, testing, and production. Required Technical Skills & Experience Minimum 8 years of hands-on experience in: Angular Development (latest versions preferred) - including component-based architecture, TypeScript, RxJS, and state management (NgRx). .NET Framework / .NET Core Development - with strong proficiency in C#, ASP.NET Core, Web APIs, and MVC frameworks. Entity Framework Core (EF Core) - implementing ORM, LINQ queries, and database migrations for SQL Server or other RDBMS. Kendo UI Framework - building interactive, high-performance web interfaces with Kendo widgets and controls. Minimum 2 years of proven experience working in an Agile/Scrum environment, actively participating in sprint-based development cycles. Strong understanding of software development life cycle (SDLC), RESTful architecture, and API-first design principles. Experience with Git, Azure DevOps, Jira, or similar project tracking and version control tools. Proficiency in front-end optimization, responsive design, and cross-browser compatibility. Preferred Qualifications Bachelor's degree in Computer Science, Information Technology, or a related field. Experience with CI/CD pipelines, Docker, or cloud-based deployments (Azure/AWS). Familiarity with unit testing frameworks (xUnit, NUnit, Jasmine, Karma) and code quality tools (SonarQube, ESLint). Excellent communication and collaboration skills, with a commitment to delivering high-quality software in a fast-paced Agile environment. Core Competencies Strong analytical and problem-solving skills. Detail-oriented with a focus on code quality and performance. Self-motivated with the ability to work independently and as part of a team. Effective communicator capable of engaging both technical and non-technical stakeholders. Continuous learner, staying current with emerging technologies and development practices. 1850
    $82k-107k yearly est. 5d ago
  • Senior Android Developer

    Synergy Interactive

    Applications developer job in Chicago, IL

    Are you passionate about developing innovative mobile solutions? Do you thrive in an environment where diversity of thought and background is celebrated? We?re looking for an Android Developer, on-site in our Chicago office, who brings expertise in Digital Rights Management (DRM) and video streaming technologies to help us build world-class mobile applications. Key Responsibilities Develop and enhance Android applications with a focus on secure video streaming. Implement DRM protocols (such as Widevine) to protect digital content. Collaborate closely with product, design, and backend teams to build seamless and secure streaming experiences. Ensure high performance, scalability, and usability of the app across different Android devices. Stay updated on the latest trends in Android development, DRM, and media streaming technologies. Debug and resolve complex technical issues across different versions of Android. Participate in code reviews, ensuring adherence to best practices and high coding standards. Manage multiple projects simultaneously, delivering high-quality solutions on time. Take ownership of projects, making informed decisions to meet client and business needs. Required Qualifications Proven experience as an Android Developer with a strong portfolio of completed projects. Proficient in Java and Kotlin. Experience in developing applications for both current and older versions of Android. Deep understanding of Android?s graphics stack and media frameworks. Strong grasp of the Android event model and how touch and input events propagate through the View hierarchy. Ability to optimize media rendering and UI performance by leveraging low- level system APIs, memory management techniques, and profiling tools Solid understanding of Android architecture components and design patterns (MVVM, MVP) Familiarity with secure storage, encryption, and app security best practices. Familiarity with cloud services and integration (e.g., AWS). Knowledge of version control systems, particularly Git Experience working in a fast-paced agency environment or similar settings. Excellent problem-solving skills and the ability to work independently and collaboratively. Strong communication skills, with the ability to convey complex technical concepts to both technical and non-technical stakeholders. Knowledge about network programing and protocols and integrating with RESTful and WebSocket-based APIs. Preferred Qualifications Experience with adaptive streaming and real-time video delivery. Experience working with DRM technologies (Widevine, etc.). Experience with graphics and animation libraries Knowledge of crypto theory (PKI) and SGX enclave will be a plus. Experience with DevOps practices and CI/CD pipelines. Familiarity with agile methodologies.
    $95k-128k yearly est. 2d ago
  • Lead Java Backend Developer

    DSM-H Consulting

    Applications developer job in Chicago, IL

    Typical task breakdown: - Competent to perform all programming, project management, and development assignments without close supervision; normally assigned the more complex aspects of systems work. - Acts as team leader for development and support groups; provides programming and application/technical leadership, guidance, and assistance to other team members. - Works directly on complex application/technical problem identification and resolution, including responding to off-shift and weekend support calls. - Works independently on complex systems or infrastructure components that may be used by one or more applications or systems. - Drives application development focused around delivering business valuable features - Mentor and assist software engineers, providing technical assistance and direction as needed - Maintains high standards of software quality within the team by establishing good practices and habits - Identifies and encourage areas for growth and improvement within the team - Guide the team to develop a structured application/interface code, new program documentation, operations documentation and user guides in a casual, flexible environment - Communicate with end users and internal customers to help direct development, debugging, and testing of application software for accuracy, integrity, interoperability, and completeness - Lead development of new functionality and applications on cross-functional Agile project teams - Work with product owners to develop and implement complex, iterative delivery plans. - Performs integrated testing and customer acceptance testing of components that requires careful planning and execution to ensure timely, quality results. - Employee is also responsible for performing other job duties as assigned by CLIENT management from time to time. Interaction with team: - 13 folks in addition to the new roles coming out. Education & Experience Required: - Degree requirement: Degree is required with 10+ years experience / Masters degree is required to have 8+ years exp Required Technical Skills (Required) - Demonstrated experience leading software engineering projects. - 8 years or more of experience in designing and developing software applications in Java or Scala or at least 6 years of experience in Java or Scala with a master's degree in computer science or related field. - 7 or more years of developing back-end applications using Spring Framework, Hibernate, and enterprise software design patterns. - 7 or more years of experience with relational databases, non-relational databases and caching frameworks. Top candidates will also have: · Proven experience in many of the following, o Designing, developing, deploying and maintaining software at scale. o Developing software applications using relational and non-relational databases. o Application architectural patterns, such as MVC, Microservices, Event-driven, etc. o Deploying software using CI/CD tools such as Jenkins, GoCD, Azure Devops etc. o Deploying and maintaining software using public clouds such as AWS or Azure. o Working within an Agile framework (ideally Scrum) · Strong understanding and/or experience in many of the following, Batch or stream processing systems such as Apache Spark, Flink, Akka, Storm o Message brokers such as Kafka, Rabbitmq, AWS SQS, AWS SNS, Apache ActiveMQ, Kinesis. o Experience designing well-defined Restful APIs o Experience writing API proxies on platforms such as Apigee Edge, AWS API Gateway or Azure API Gateway o Hands one experience with API tools such as Swagger, Postman and Assertible o Test driven development and behavior driven development. o Hands on experience with testing tools such as Selenium and Cucumber and their integration into CI/CD pipelines. o Datastores such as Postgres, MongoDB, Cassandra, Redis, Elasticsearch, MySQL, Oracle. o Debugging and maintaining software in Linux or Unix platforms. · Understanding of front-end state management libraries (redux) · Must demonstrate solid knowledge of computer science fundamentals like data structures and algorithms. · Ability to work under pressure and within time constraints · Passion for technology and an eagerness to contribute to a team-oriented environment · Demonstrated leadership on small to medium-scale projects impacting strategic priorities · Bachelor's degree in Computer science or Electrical engineering or related field is required Soft Skills (Required) - Excellent communication skills ( spoken and written)
    $89k-116k yearly est. 2d ago
  • Power BI Developer

    Panzer Solutions LLC 3.5company rating

    Applications developer job in Lisle, IL

    Title: Power BI Developer Start: Jan 5 or Jan 12 Duration: Contract to hire in 3-6 mos 65% +/- is working on Power BI reports and 35% +/- is Data Engineering work (SQL, Databricks Azure (ADF, ADLS, etc.). Must Have: 5+ years of experience as a data engineer or SQL developer. Minimum of 3 years of experience working with Power BI, with a strong portfolio of report and dashboard development. Proficiency in Power BI Desktop, Power BI Service, DAX, and Power Query. Excellent understanding of T-SQL programming, ETL Processes, and Microsoft SQL Server. Experience working with data using structured (SQL) and/or unstructured (NoSQL) approaches. Experience with or exposure to data visualization principles and practices, especially with Power BI. In-depth knowledge of Azure Data Factory, Azure Databricks, and Azure Service Bus.
    $73k-92k yearly est. 3d ago
  • Director of Automation and SDET

    Request Technology, LLC

    Applications developer job in Chicago, IL

    is bonus eligible*** Prestigious Financial Institution is currently seeking a Director of Automation and SDET with AI/ML experience. Candidate will be responsible for defining, driving and scaling enterprise-wide test automation, quality engineering practices. This role will architect and implement advanced automation solutions across applications, data and platforms, enable adoption of best practices, and establish the governance, metrics and tools. The role combines technical expertise with strong leadership and stakeholder collaboration skills to deliver next generation automation infusing AI capabilities. Responsibilities: Define and execute the enterprise automation strategy aligned with business and technology modernization goals. Drive adoption of automation in all phases of testing including automated regression and smoke tests to improve quality and accelerate testing. Implement automated quality gates, pre/post deployment checks and shift-left testing. Architect scalable, reusable automation frameworks covering UI, API, microservices, data pipelines, Kafka/event driven systems, batch jobs, reports and databases. Define standards for BDD, contract testing, CI/CD integration, synthetic data generation and environment-agnostic test automation. Establish tagging and traceability across automation framework, Jira, Confluence, Test management tools, CI/CD pipelines and Splunk. Introduce and scale synthetic test data management, environment/service virtualization for complex integration testing. Envision and implement AI/ML and Generative AI infused solutions for test case generation, test data generation, automation script generation and quality insights. Build quality engineering and automation center of excellence to drive training, reusable asset libraries and knowledge management artifacts. Partner with development, product, DevOps and Platform Engineering leaders to embed automation into all stages of SDLC. Define, monitor and report KPIs/OKRs for automation outcomes to executives and product owners. Drive compliance with industry standards, regulatory requirements, and audit readiness across automation and QE practices. Manages a team of people managers, individual contributors, and consultants/contractors Qualifications: Minimum ten (15) years' of IT experience with ten (10)+ years in test automation. Proven track record of leading enterprise-scale automation initiatives in complex, distributed environments (microservices, cloud, batch applications, data, MQ, Kafka event driven systems). Hands-on experience with service virtualization, synthetic test data management. Strong hands-on expertise in testing and test automation tools and frameworks including Jira, BDD, Selenium, Cucumber, REST-assured, JMeter, Playwright. Strong programming experience in Java and Python. Deep understanding of DevOps, CI/CD pipelines (Jenkins, Harness, GitHub), cloud platforms (AWS, Azure) and containerized environments (Kubernetes, Docker). Experience with Kafka/event-driven testing, large data set validations Experience with Agile development processes for enterprise software solutions Strong background in metrics-driven quality reporting and risk-based decision making. Strong organizational leadership skills Ability to manage multiple, competing priorities and make decisions quickly Knowledgeable about industry trends, best practices, and change management Strong communication skills with the ability to communicate and interact with a variety of internal/external customers, coworkers, and Executive Management Strong work ethic, hands-on, detail oriented with a customer service mentality Team player, self-driven, motivated, and able to work under pressure Results-oriented and demonstrated record of developing initiatives that impact productivity Technical Skills: Proficiency with modern quality engineering tools including Jira, Jenkins, automation frameworks, test management tools. Software QA methodologies (requirements analysis, test planning, functional testing, usability testing, performance testing, etc.) Familiarity with AI/ML/GenAI Solutions in QE. Utilizing best practices in software engineering, software test automation, test management tools, and defect tracking software Past/Current experience of 3+ years working on a large-scale cloud native project Experience with cloud technologies and migrations using public cloud vendor preferably using cloud foundational services like AWS's VPCs, Security groups, EC2 Education and/or Experience: BS degree in Computer Science or Information Systems Management or a similar technical field 10+ years of experience in Quality Assurance space preferably on complex systems and large programs.
    $65k-87k yearly est. 1d ago
  • Java AWS Developer - Fintech Domain

    Greymatter Innovationz

    Applications developer job in Chicago, IL

    Greymatter Innovationz helps you stay digitally relevant across domains, technologies, and skillsets, every day. We are looking for: Java AWS - Senior Developer with strong coding skills Duration: Contract Or Fulltime Onsite- 5 days/ wk Candidate must be heavy on backend Java API and heavy on AWS (Lamba or S3 or any other AWS tool) Must Have Qualifications: • Experienced with Java development using Spring boot framework • Strong knowledge of J2EE frameworks, Object Oriented Programming and microservices application architecture • Strong knowledge of core java with understanding of concepts like Java runtime, interservice communication, Logging/Monitoring, Authorization, Bounded-Context based modeling, Exception Handling, JSON parsing • Experienced with building and deploying applications in servers like Tomcat and WebSphere along with modern cloud tech stacks like Kubernetes and OCP. • Hands on experience with RDBMS and PL/SQL technologies with exposure to both on prem (Oracle, Postgres) and cloud managed services databases like RDS and CloudSQL • Strong experience in TDD methodology , writing and executing automated Junit Test cases • Experienced with Streaming/Queuing platforms - Kafka/RabbitMQ • Handson with Maven and Ant builds • Experienced with DevSecOps pipelines and tools like Jenkins or Harness • Knowledge of Payment domain with experience in wallet and digital payments. • Spring Integration, Spring State machine and Spring batch frameworks • Handon knowledge in AWS, GCP or Azure cloud • Experience on cloud native technologies like S3, SQS, Lambda functions etc • Knowledge of NO SQL databases • Strong knowledge and hands-on skills in Docker, Kubernetes, OpenShift, RHEL, Helm • Strong analytical and communication skills • Knowledge of API Management and API Integration design patterns • Exposure to Performance test tools like Jmeter or Gatling • Exposure to chaos experiments and Chaos tools like Gremlin, Litmus etc. At Greymatter Innovationz, We offer: Motivating Work Environment. Excellent Work Culture. Help you to upgrade yourself to the next level. And More!!!
    $73k-95k yearly est. 1d ago
  • UI/UX Developer

    Acuity Analytics

    Applications developer job in Chicago, IL

    The UI/UX Developer is a highly visible, front-office-embedded role responsible for creating intuitive, high-quality interfaces used by portfolio managers, analysts, quants, and researchers. The role requires exceptional design instincts and strong front-end development skills, as well as the ability to simplify complex quantitative and data-driven workflows into clear, usable experiences. Success in this role requires frequent in-person interaction with investment teams, rapid prototyping, and tight integration with backend analytics delivered by Quant Developers and Data Engineers. This individual will play a foundational role in shaping how users interact with research content, automated insights, pricing analytics, and portfolio workflows. Responsibilities Work directly with on-desk investment and research teams to gather requirements, understand workflows, and identify usability pain points. Design and build modern, responsive front-end interfaces for research portals, analytics dashboards, tagging systems, and AI-assisted insight tools. Rapidly prototype concepts, conduct iterative user testing, and refine designs based on continuous stakeholder feedback. Collaborate closely with Quant Developers and Data Engineers to integrate model outputs, data sets, and real-time analytics into intuitive visual experiences. Ensure high standards of usability, clarity, visual hierarchy, and frontend performance across all user interfaces. Translate ambiguous or evolving user requirements into actionable interface designs that mature over time. Contribute to establishing design patterns, UI standards, and UX workflows as the product expands. Requirements 5-10 years of combined UI/UX design and front-end engineering experience. Strong JavaScript development skills; React or similar modern frameworks preferred. Demonstrated ability to create polished design artifacts using Figma or comparable tools. Ability to work directly on the trading or research desk, absorbing feedback quickly and interacting with high-intensity front-office users. Strong communication skills with the ability to translate complex quantitative or data concepts into simple, intuitive user interfaces. Experience in financial services or investment technology is a strong plus, particularly in environments where speed, clarity, and precision are critical. Comfort working in fast-moving, high-ambiguity environments where requirements evolve through direct stakeholder engagement.
    $71k-92k yearly est. 3d ago

Learn more about applications developer jobs

Do you work as an applications developer?

What are the top employers for applications developer in IL?

Top 10 Applications Developer companies in IL

  1. IBM

  2. Sonoma Consulting

  3. Novaspect

  4. Visvero

  5. Google via Artech Information Systems

  6. SitelogIQ

  7. CBRE Group

  8. Komatsu America Corp.

  9. Memorial Health Systems Corporation

  10. Memorial Health

Job type you want
Full Time
Part Time
Internship
Temporary

Browse applications developer jobs in illinois by city

All applications developer jobs

Jobs in Illinois