Senior java developer jobs in Oak Park, IL

*Presently we are unable to sponsor and request applicants to apply who are authorized to work without sponsorship* Job Title: Java Developer Duration: Contract to Hire Job Summary As a Java Developer you will join an agile technology team responsible for designing, developing, testing, and delivering high-quality, scalable software solutions that support critical business functions. You will collaborate with product owners, architects, and other engineers to build and maintain backend services (and optionally full stack) using Java technologies, cloud platforms and modern tools. You will ensure code quality, reliability, performance, and compliance with enterprise standards and controls. Required Qualifications: Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline (or equivalent experience). Several years (depending on level: e.g., 3-8 years for mid-level; 8+ for senior) of hands-on experience developing Java applications in enterprise environments. Proficiency in Java (core, Java 8+), and frameworks such as Spring Boot, Spring MVC, or similar. Good experience with RESTful web services and microservices architecture. Strong understanding of object-oriented design, software engineering principles, design patterns, and system architecture. Experience with relational databases (SQL) and ideally some NoSQL database exposure. Familiarity with version control systems (e.g., Git), build tools (e.g., Maven/Gradle), and continuous integration/continuous deployment (CI/CD) pipelines. Excellent problem-solving skills, communication skills, and ability to work effectively in team and cross-functional settings.

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)

Job Family: Data Science Consulting Travel Required: Up to 10% Clearance Required: None What You Will Do: We are seeking a AI Development Lead to drive the design, development, and delivery of AI solutions, especially Generative AI, for clients modernizing their operations through intelligent automation. This hands-on leader will guide agile teams in developing AI-enabled Minimum Viable Products (MVPs) while advising on architecture, deployment, and governance strategies. The ideal candidate blends strong technical depth in modern AI tools with consulting experience, ensuring that emerging technologies deliver measurable value for clients. AI Delivery Leadership Lead the end-to-end delivery of AI MVPs, from use case definition through demonstration and iteration, including engaging directly with clients. Design solution architectures and technical roadmaps that integrate AI components within client cloud environments. Oversee model development, validation, and user interface integration to create functional prototypes. Deliver MVP demonstrations, gather stakeholder feedback, and refine solutions through post-deployment feedback loops. Construct and maintain scalable data pipelines for processing, transforming, and feeding data into AI models and applications. Agile Development & Team Enablement Lead agile development sprints and facilitate SCRUM ceremonies to ensure quality, velocity, and stakeholder alignment. Mentor developers and data scientists, fostering collaboration and excellence in applied AI engineering. Support backlog management, sprint prioritization, and delivery tracking across multidisciplinary teams. Generative AI & Technical Advisory Apply Generative AI and Large Language Model (LLM) techniques to automate, analyze, and enhance compliance and operational workflows. Evaluate and refine prompt engineering and context enrichment strategies for AI-based applications. Assess and optimize existing AI toolchains and workflows to improve scalability and delivery efficiency. Advise on production deployment strategies, including security, performance, and data integration considerations. Conduct operational readiness assessments to evaluate solution performance, resilience, and maintainability. Design lightweight model monitoring and retraining pipelines to maintain relevance and accuracy. Support AI governance alignment, ensuring all solutions adhere to organizational standards and risk management practices. Serve as the primary client interface for technical leadership, solution assurance, and delivery success. Construct and maintain scalable data pipelines for processing, transforming, and feeding data into AI models and applications. Collaborate with cross-functional teams to rapidly prototype and iterate on solutions Deploy and manage applications and models in cloud environments leveraging infrastructure-as-code and DevOps best practices. What You Will Need: Bachelor's degree is required Minimum SEVEN (7) years of experience delivering AI, software, or data-driven solutions, Minimum TWO (2) years in a leadership or client-facing consulting role Hands-on experience designing or implementing Generative AI systems (e.g., knowledge assistants, automation workflows, or retrieval-based reasoning) in cloud environments (e.g. Azure, Amazon Web Services) Experience with key Generative AI system patterns, such as: RAG (Retrieval-Augmented Generation) and retrieval-based reasoning systems Agentic frameworks (e.g., orchestrated multi-step reasoning, tool-using AI agents) Evaluation and observability frameworks (e.g., LLM/human evals, prompt testing, reliability scoring) Model monitoring and retraining pipelines Proficiency in Python and experience developing applications or pipelines that integrate AI/LLMs via APIs or SDKs (e.g. LangChain, LangGraph or similar) Strong understanding of AI architecture, data integration, and model lifecycle management Demonstrated experience leading teams using Agile and DevOps delivery practices, including sprint management, CI/CD, and iterative prototyping Excellent communication, stakeholder engagement, and problem-solving skills What Would Be Nice To Have: Master's degree Experience designing or deploying solutions with Amazon Bedrock, SageMaker, or other AWS AI services Understanding of AI governance and risk management frameworks Experience supporting clients in regulated or complex environments (e.g., energy, infrastructure, public sector) The annual salary range for this position is $118,000.00-$196,000.00. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs. What We Offer: Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace. Benefits include: Medical, Rx, Dental & Vision Insurance Personal and Family Sick Time & Company Paid Holidays Position may be eligible for a discretionary variable incentive bonus Parental Leave and Adoption Assistance 401(k) Retirement Plan Basic Life & Supplemental Life Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts Short-Term & Long-Term Disability Student Loan PayDown Tuition Reimbursement, Personal Development & Learning Opportunities Skills Development & Certifications Employee Referral Program Corporate Sponsored Events & Community Outreach Emergency Back-Up Childcare Program Mobility Stipend About Guidehouse Guidehouse is an Equal Opportunity Employer-Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation. Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco. If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at ************** or via email at RecruitingAccommodation@guidehouse.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation. All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or ************************. Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process. If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse's Ethics Hotline. If you want to check the validity of correspondence you have received, please contact *************************. Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant's dealings with unauthorized third parties. Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.

We're looking for a talented iOS Developer who is passionate about building high-quality, user-friendly mobile applications. In this role, you will have the opportunity to develop an iOS app from scratch, shaping both its technical foundation and user experience. You'll work closely with designers, product managers, and backend engineers to bring ideas to life and create seamless mobile experiences for our users. What You'll Do Design, develop, and deploy an iOS application from the ground up using Swift. Work closely with cross-functional teams to translate product requirements into scalable, high-performance code. Ensure application performance, quality, and responsiveness through testing and debugging. Implement intuitive user interfaces and engaging interactions. Integrate third-party APIs and backend services to enhance app functionality. Stay up to date with the latest iOS development trends, tools, and best practices. Participate in code reviews and contribute to a culture of continuous improvement. What We're Looking For We recognize that talent comes in many forms, and we encourage you to apply even if you don't meet 100% of the criteria below. If you're excited about this role and believe you can contribute, we'd love to hear from you.Strong understanding of idiomatic Swift design patterns and iOS libraries. Experience working with RESTful APIs and WebSockets to integrate backend services. Deep understanding of Core Graphics, Core Image, and AVFoundation for efficient rendering, transformation, and playback of images and video. Expertise in iOS display pipelines, including how CALayers, Core Animation, and rendering loops interact with the GPU for optimal performance. Strong grasp of the iOS event model, including RunLoop, GCD, and how UIKit propagates touch, gesture, and UI updates across the main thread. Knowledge of Apple's App Store submission process and guidelines. Familiarity with version control systems like Git. Ability to write clean, maintainable, and efficient code. Strong problem-solving skills and a growth mindset. Excellent communication skills and a collaborative team spirit. Bonus Points Prior experience in a startup or fast-paced environment. Exposure to CI/CD pipelines for mobile apps.

As an ideal candidate, you will have an understanding of large-scale distributed systems (cloud-based environments) and have a proven track record of taking ownership of projects, development processes, and best practices, for the overall benefit of the team and organization. In addition, You need to utilize your in-depth knowledge of delivering complex services and expertise in hands-on software development to create an engineering environment that embodies the best development and testing practices for delivering a high-quality service. You think strategically about the architecture and design of software systems that span multiple products. You can critically evaluate technical trade-offs of contending designs and implementations and are able to clearly communicate these to various stakeholders. You will ensure the delivery of quality solutions and you will train and mentor junior members about best practices of software development methodology and frameworks in areas including web, mobile, use of backend APIs and services, usability and quality testing. This individual will also be expected to work closely with business and technology leadership to influence, refine and communicate out platform strategies to the broader team. Essential Job Functions Design and drive internal methodologies and process improvements shaping the engineering organization into a world class team utilizing best in class practices and technologies. Key processes include: Agile (Scrum) Cross-domain E2E design and implementation of complex features Continuous Integration and Delivery (DevOps) Software maturity and quality Versioning and Scope control Unit testing, code analysis Application security design and testing Professional experience building and leading teams that built distributed scalable enterprise-class web/mobile applications with a few of the following technologies: NodeJS, HTML5, DHTML, CSS, TypeScript, JavaScript Frameworks (Angular, Bootstrap, React, Cordova, etc.), MongoDB. Domain knowledge and experience in application development, including: client/server, web services, portal, middleware, micro services and mobile app. Must be capable of clearly articulating complex technical issues to all levels of the organization. Review and approve project deliverables to ensure that they are architecturally sound and fit into the enterprise design Enforce quality practices (unit test, code analysis, integration test, etc.) and provide quality measurements to leadership team. Drive quality initiatives within design and development phases Provide direction, guidance, and promote growth of DevOps function within the company Manage scope and delivery expectations with business partners and communicates status and big picture to the leadership team. Remove obstacles, close gaps and manage and mitigate risks. Partner closely with business and enterprise architecture teams to ensure application design and implementation meets requirements, technical roadmap and business direction Provide oversight and direction for the design, implementation, timely release and maintenance of products that meet customer expectations and high standards for quality, stability and performance Minimum Qualifications Bachelor's Degree in Computer Science, Information Systems, other related field or equivalent work experience. 8+ years overall IT system architecture, design, development, deployment experience. Minimum of 3 - 5 years Full-stack development with relevant AngularJS and Node.JS experience 3+ years of leadership experience in software development overseeing the direction, development and delivery of large scale, distributed, web-based mission critical products/platforms in fast pace agile environments using continuous delivery. Knowledge and experience in developing software using agile methodologies. Knowledge and experience in developing enterprise applications using OO Design, Microservices architecture, SOLID Design principals. Solid experience in emerging and traditional technologies such as : NodeJS , AngularJS, Cordova/Ionic, Docker, REST, JSON, XML, HTML / HTML5, CSS, NoSQL, Maven and AWS/Cloud Infrastructure etc. Experience with NoSQL technologies such as MongoDB, Redis, etc. Experience developing containerized applications using AWS, Docker. Flexible and adaptable attitude, disciplined to manage multiple responsibilities and adjust to varied environments. Solid knowledge and experience in CI/CD tools and DevOps principles. Effective leader with exceptional interpersonal & communication skills and strong experience with talent development Must have strong analytical and problem solving skills. Solid experience with web services, system integration and service oriented architecture. Flexible and adaptable attitude, disciplined to manage multiple responsibilities and adjust to varied environments. Experience with the Atlassian suite of products (Confluence, Jira, GitHub, Bitbucket, etc.) Salary Range - $130,000 - $150,000+/year ** This is an estimated range based on the circumstances at the time of posting, however, may change based on a combination of factors, including but not limited to skills, experience, education, market factors, geographical location, budget, and demand** BEWARE OF FRAUD! Hub Group has become aware of online recruiting related scams in which individuals who are not affiliated with or authorized by Hub Group are using Hub Group's name in fraudulent emails, job postings, or social media messages. In light of these scams, please bear the following in mind Hub Group will never solicit money or credit card information in connection with a Hub Group job application. Hub Group does not communicate with candidates via online chatrooms such as Signal or Discord using email accounts such as Gmail or Hotmail. Hub Group job postings are posted on our career site: ******************************** About Us Hub Group is the premier, customer-centric supply chain company offering comprehensive transportation and logistics management solutions. Keeping our customers' needs in focus, Hub Group designs, continually optimizes and applies industry-leading technology to our customers' supply chains for better service, greater efficiency and total visibility. As an award-winning, publicly traded company (NASDAQ: HUBG) with $5 billion in revenue, our 6,000 employees and drivers across the globe are always in pursuit of "The Way Ahead" - a commitment to service, integrity and innovation. We believe the way you do something is just as important as what you do. For more information, visit ****************

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. Secondary Skills - Highly motivated, self-directed and possesses solid execution skills. - Demonstrates critical thinking and probes beyond the surface of the requested data to get at the valuable (actionable) information. - Able to understand complex technical concepts quickly. - Detail oriented but understands broader impacts of requests. - Adjusts quickly to changing priorities as necessary. - Manages multiple tasks and deliverables simultaneously and in an organized and results-oriented manner. - Strives to proactively identify and address areas where business process efficiency and effectiveness improvements would make a positive impact on the top and bottom lines. - Excellent written and verbal communication skills. - Possesses a strong analytical, quantitative and objective outlook. - Excellent people skills are also necessary since this position interacts with all levels

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

Below opportunity open with our Government Client for 100% Onsite work in Downtown Chicago - ** currently unable to provide any assistance with work authorization ** Sr. Android Developer ** W2 Contract & Onsite/Local to Chicago ** 6 months & potential for long-term extension 100% Onsite - Downtown Chicago Key Areas: Android Developer with minimum 8+ years of experience in Java and Kotlin to design, build, and maintain high-quality mobile applications. Android App development Full Lifecycle and Architecture Patterns (MVC, MVVM, MVP). Experience integrating RESTful APIs, Third-party libraries, and familiar with Git, ADO, and version control systems The ideal candidate is passionate about mobile technology and enjoys translating complex requirements into user-friendly, performant, and reliable Android apps. Key Responsibilities Design, develop, and maintain applications for the Android platform. Collaborate with cross-functional teams to define, design, and ship new features. Ensure code quality, performance, and responsiveness of applications. Participate in code reviews, troubleshooting, and debugging. For questions or clarifications, please don't hesitate to contact us using the information below. Amit *******************

Northern Trust is proud to provide innovative financial services and guidance to the world's most successful individuals, families, and institutions by remaining true to our enduring principles of service, expertise, and integrity. With more than 130 years of financial experience and over 22,000 partners, we serve the world's most sophisticated clients using leading technology and exceptional service. We are seeking a dynamic and innovative Test Architect to lead our Azure Infrastructure as Code (IaC) quality assurance initiatives and contribute to application development projects leveraging Python, Spring Boot, and React. This role bridges the domains of cloud infrastructure, automated testing, and modern application engineering, making it ideal for a technical leader passionate about DevOps, platform reliability, and developer productivity. Role Overview As a Test Architect, you will be responsible for designing and implementing robust quality frameworks for Azure-based IaC solutions, driving the adoption of automation best practices, and ensuring infrastructure consistency and compliance across multiple environments. You will also play a key role in developing and integrating supporting applications-ranging from automation scripts to dashboards-using Python for backend logic and Spring Boot/React for full-stack web development. Key Responsibilities Architect and evolve comprehensive automated test strategies for Azure IaC, focusing on Terraform, ARM/Bicep, and policy compliance. Lead the development of Python-based automation tools and scripts for test execution, resource provisioning, configuration validation, and infrastructure reporting. Design, build, and maintain user-facing dashboards, reporting tools, and workflow automation platforms using Spring Boot and React, enabling data-driven insights into IaC test coverage, drift management, and compliance posture. Integrate IaC quality gates into CI/CD systems such as GitHub Actions, ensuring all code deployments pass automated test suites and drift detection scans before promotion. Establish and refine frameworks for drift detection, root cause analysis, and remediation, leveraging both native Azure services and custom-developed solutions. Collaborate with architects, security specialists, and application developers to align infrastructure test practices with organizational goals, compliance requirements, and evolving cloud technologies. Promote best practices through code reviews, technical workshops, and documentation. Design, implement, and maintain comprehensive automated testing suites for Azure IaC using python. Develop, execute, and refine test cases to validate infrastructure modules, deployments, and policies in Azure environments. Develop, enhance, and maintain supporting applications and tools using Python, Spring Boot, and React, facilitating automation, reporting, and dashboarding for IaC quality and drift management. Monitor, report, and remediate infrastructure drift, using tools and frameworks for continuous compliance and configuration management. Maintain detailed documentation on test coverage, drift findings, and corrective actions taken to ensure auditability and traceability. Conduct root cause analysis for infrastructure failures and propose solutions to improve test coverage and resilience. Stay up-to-date with Azure platform enhancements, testing tools, and industry trends in cloud IaC quality, governance, and full-stack development. Required Skills & Qualifications Bachelor's or master's degree in computer science, Engineering, or a related technical discipline. 14+ years of experience in cloud infrastructure engineering and automated testing, with a minimum of 3 years focused on Azure public cloud. Expertise in infrastructure automation using Terraform, ARM templates, and Bicep within Azure environments. Advanced proficiency in Python for developing test automation, orchestration logic, and data processing pipelines. Strong background in full-stack application development, including building RESTful APIs and web applications with Spring Boot (Java) and React. Hands-on experience with configuration management, monitoring, and compliance tools native to Azure, as well as industry-standard frameworks (e.g., Terratest, Pester). Track record of integrating infrastructure quality assurance into modern CI/CD pipelines. Excellent analytical, problem-solving, and communication skills, with an emphasis on technical documentation and cross-functional collaboration. Proficient in supporting, maintaining, and enhancing Spring Boot applications, ensuring seamless integration with backend services, optimized performance, and robust security for enterprise-scale cloud environments. Extensive hands-on experience with Azure-native monitoring tools such as Azure Monitor, Log Analytics, and Application Insights, enabling proactive detection and resolution of infrastructure issues. Proficiency in integrating monitoring frameworks with automated test suites and reporting dashboards, ensuring visibility into resource health, compliance drift, and system performance. Preferred Skills Experience with multi-cloud environments (AWS, GCP) and hybrid IaC strategies. Familiarity with containerization (Docker, Kubernetes/AKS) and microservices architectures. Background in building secure, compliant platforms within regulated industries. Expertise in workflow automation, event-driven architectures, and data visualization using Python, Spring Boot, and React. Experience with TypeScript, Next.js, or other modern JavaScript frameworks. Familiarity with CI/CD tools such as Jenkins, GitLab CI, or GitHub Actions. Understanding of security best practices (OWASP, JWT, OAuth2, SSO). Background in performance optimization, caching strategies, and application monitoring. Exposure to automated testing tools (Jest, Mocha, Selenium, JUnit). Strong analytical, troubleshooting, and debugging skills. Relevant Azure and DevOps certifications (AZ-104, AZ-305, DevOps Engineer Expert) are strongly preferred.

Senior Software Engineer A tech-focused online brokerage based in The Loop is currently looking for a Senior Software Engineer to work on their core trading systems. They've been in business for over 20 years now and are in a major growth phase. This position focuses on the full life cycle of their proprietary trading platform, specifically across the front, middle, and back-office systems. You will be joining an established firm with a history of strong performance and a collaborative, tech-first culture. Responsibilities Developing and optimizing their high-performance order routing engines. Designing and implementing market data processing services. Integrating new features and connections using the FIX Protocol. Collaborating with business stakeholders to translate needs into technical solutions. Maintaining a high standard of code quality, performance, and reliability across all trading systems. Requirements Significant professional experience working as a Software Engineer, ideally on complex, high-performance systems. Expertise in C# development. Bachelor's or Master's Degree in Computer Science, Engineering, or a related field. Pluses Any professional experience with C++. Direct experience working on low-latency trading systems, market data, or electronic brokerage platforms. Familiarity with financial protocols like FIX.

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.

one of our staffing partners is looking for a role for a Java Software programmer for a entertainment sector client Role will pay around $65k-75k per year Seeking a highly skilled developer to design, implement, and maintain high-performance applications. If you thrive in an innovative environment and love solving complex problems, we d love to hear from you! Responsibilities: Develop, test, and maintain Java applications. Design and develop robust backend applications using Spring Boot Implement microservices architecture for high availability and scalability Write and optimize RESTful APIs for seamless integration Set up, manage, and automate CI/CD pipelines for efficient deployment Containerize applications using Docker and orchestrate with Kubernetes 2-5 years of industry experience with Java, Spring Boot, and related frameworks. Strong experience with Java and Spring Boot framework Expertise in microservices architecture and API development Hands-on experience with CI/CD pipelines using Jenkins, GitHub Actions, or similar tools Proficiency in cloud platforms (AWS, Azure, GCP) Excellent problem-solving skills and ability to work in a team environment. we are unable to work with third party or c2c candidates due to low margins. Only direct candidates with experience apply

TBSCG is a modern consulting and engineering company trusted by well‑known enterprise brands. We design, build, and support digital experiences and platforms across financial services, manufacturing, technology, public sector and global consumer brands. We combine the feel of a close‑knit, supportive team with the impact and credibility of large‑scale, high‑visibility programs. About the Role We're looking for a Full‑Stack Engineer who enjoys working across the stack - from backend services and APIs to modern frontends. You'll build end‑to‑end solutions that power digital platforms for enterprise clients, working with both Java/Node.js and React. What You'll Do • Build features end‑to‑end across backend and frontend • Write clean, modular code that is well‑tested and maintainable • Work with APIs, headless/CMS platforms, cloud services and integrations • Participate in solution design and contribute to technical choices • Collaborate with architects, designers and engineers across disciplines • Help improve engineering standards, tooling and reusable components Must‑Have • Solid web fundamentals & API understanding (HTTP, REST, JSON) • Experience in Typescript, React and Next.JS • Git, secure development mindset, and CI/CD familiarity • Ability to deliver end‑to‑end features with some autonomy Useful to Have • Experience with Java. • Terraform • SQL/NoSQL; Docker; cloud‑ready development • Automated testing across front & backend Bonus • Integrations with CMS/DXP, DAM, CRM or e‑commerce • Magnolia CMS + React headless or hybrid experience • AWS cloud experience (backend or frontend delivery) • Consulting or client‑facing experience Please note that TBSCG does not provide visa sponsorship or assistance. If you would like to know more about how your personal data is used, in relation to the recruitment process, please see our Recruitment Privacy Policy ( ****************************************** TBSCG participates in the E-Verify program to verify the employment eligibility of all new hires. If you are selected and hired, your eligibility to work in the United States will be verified within the first three days of employment

Title : Fullstack developer Mandatory Skills: Java, React.JS, JavaScript, DOM, JavaScript object model, React.js workflows, Redux Context API or MobX, RESTful APIs, Webpack Babel, JSON, Web Token, JWT, HTML5, CSS3, Git, Azure, TypeScript, CI/CD Pipeline, Jest Enzyme or React Testing Library, Next.js Job Description: Strong proficiency in JavaScript including DOM manipulation and the JavaScript object model. Thorough understanding of React.js and its core principles. Experience with popular React.js workflows e.g. Redux Context API or MobX. Familiarity with RESTful APIs and modern frontend build pipelines and tools e.g. Webpack Babel. Knowledge of modern authorization mechanisms such as JSON Web Token JWT. Proficiency in HTML5 CSS3 and responsive design principles. Familiarity with version control tools like Git. Strong problem-solving and debugging skills. Cloud Development experience Microsoft Azure. Preferred Qualifications: Experience with TypeScript. Knowledge of server-side rendering SSR with frameworks like Next.js. Familiarity with testing frameworks such as Jest Enzyme or React Testing Library. Understanding of CICD pipelines and deployment processes.

Cullerton Group has a new opportunity for an IT Software Engineer 5. The work will be done hybrid in Chicago, IL, with 2 days per week onsite required; candidates must also be comfortable with a future potential transition to 5 days onsite. This is a long-term 12-month position that can lead to permanent employment with our client. Compensation is up to $100.43/hr + full benefits (vision, dental, health insurance, 401k, and holiday pay). Job Summary Cullerton Group is seeking two highly experienced Lead Software Engineers to drive the design, development, testing, and deployment of enterprise-scale backend software systems. These engineers will take ownership of complex technical challenges, lead development teams, perform code reviews, and guide best practices in modern application architecture. The role is both hands-on and leadership-focused, with responsibility for mentoring developers, resolving complex system issues, and collaborating with product owners to deliver iterative, high-value features. These positions are ideal for senior engineers with deep backend, distributed systems, and cloud experience who thrive in a hybrid, fast-paced environment. Key Responsibilities • Lead design, development, deployment, and testing of backend software systems and enterprise applications • Mentor and guide junior and mid-level engineers; review code and enforce engineering best practices • Serve as a technical lead for development and support teams, owning complex programming and project assignments • Troubleshoot complex application and technical problems, including after-hours or weekend escalations • Work independently on infrastructure and system components used across multiple applications • Collaborate with product owners to develop and execute iterative delivery plans • Drive development of structured application/interface code, documentation, and user guides • Communicate with internal customers and end users to validate design, functionality, and integration • Lead development of new functionality in a cross-functional Agile team environment • Conduct integrated and customer-acceptance testing to ensure quality, accuracy, and completeness of solutions Required Qualifications • Bachelor's degree in Computer Science, Electrical Engineering, or related field (required) • 10+ years of software engineering experience (or 8+ years with a Master's degree) • 8+ years designing and developing software in Java or Scala • 7+ years building backend applications using Spring Framework, Hibernate, and enterprise design patterns • 7+ years working with relational and non-relational databases and caching frameworks • Strong leadership background, including experience leading development initiatives and mentoring engineers • Excellent verbal and written communication skills Preferred Qualifications • Experience designing, developing, deploying, and maintaining software at scale • Strong understanding of architectural patterns (Microservices, MVC, event-driven, etc.) • Experience deploying via CI/CD tools such as Jenkins, GoCD, Azure DevOps, etc. • Experience with cloud platforms such as AWS or Azure • Experience with message brokers such as Kafka, RabbitMQ, SQS, Kinesis, SNS • Experience building and maintaining REST APIs and API gateways (Apigee, AWS API Gateway, Azure API Gateway) • Knowledge of batch or stream processing (Spark, Flink, Akka, Storm) • Experience with TDD/BDD, Selenium, Cucumber, and automated pipeline integration • Experience with datastores such as Postgres, MongoDB, Cassandra, Redis, Elasticsearch, Oracle, MySQL • Experience working in Linux/Unix environments • Experience with front-end state management libraries (Redux) • Strong understanding of computer science fundamentals (data structures, algorithms) • Demonstrated leadership on small- and medium-scale strategic projects Why This Role? This role offers the opportunity to lead highly technical software development initiatives within a collaborative and impactful engineering organization. You will guide modern application development, influence system architecture, and mentor engineers while contributing to solutions used across multiple business areas. Cullerton Group provides a professional environment with long-term stability, strong technical challenges, expansive cloud and backend development exposure, and meaningful opportunities for leadership and career growth.

We're Hiring - Software Engineer and Sr. Software Engineer Phillip Capital Inc., located in Chicago, is dually registered with the SEC/FINRA as a self-clearing broker dealer and the Commodity Futures Trading Commission (CFTC) as a registered Futures Commission Merchant (FCM) serving professional traders and institutions with customized clearing, custody and global market access solutions. We offer the opportunity to grow your skills and make meaningful, visible contributions to both your team and the company. We believe in integrity, accountability, open communication, and continual improvement to build for the long term. Our office in the iconic Board of Trade Building is conveniently located near Metra and CTA lines and close to restaurants, parks, shopping, and cultural institutions. Our building amenities include indoor bicycle parking, a gym, and a rooftop deck. Learn more about us at ********************** and ******************* We are seeking Software Engineers to join our engineering team in the financial services sector. This role combines hands-on development with architectural responsibilities, helping design and implement scalable, secure, and high-performance applications. You will work closely with our program manager, product owner, and cross-functional teams to modernize our technology stack, improve reliability, and deliver business-critical solutions that support our strategic goals. Key Responsibilities (may vary by level) Design, develop, and maintain enterprise-grade applications using a modern programming language and framework (e.g., C#, Java, or similar). Take on architecture responsibilities, including solution design, integration patterns, and technology selection. Develop and consume RESTful APIs and integrate with external services using secure authentication protocols. Collaborate on cloud-native solutions using a major cloud platform (AWS, Azure, or GCP). Contribute to service-oriented or microservices architecture to ensure scalability, resilience, and observability. Build and maintain responsive front-end applications using a modern JavaScript framework (e.g., Angular, React, or Vue). Design and maintain CI/CD pipelines to automate builds, testing, and deployments. Work with relational and/or NoSQL databases, optimizing queries and ensuring performance. Implement security best practices for financial data, including encryption at rest and in transit. Participate in design reviews, code reviews, and cross-team technical discussions. Mentor junior developers and contribute to engineering best practices across the team. Explore and apply cutting-edge technologies such as Gen AI tools and APIs to enhance product capabilities and developer productivity. Qualifications 5-8 years of professional software development experience, with strong background in at least one modern programming language and framework (e.g., .NET, Java, Node.js, or similar). Experience designing and delivering cloud solutions on AWS, Azure, or GCP. Proficiency in at least modern front-end frameworks and web development fundamentals. Strong database development skills with relational or NoSQL databases, and familiarity with ETL processes. Experience with CI/CD pipelines and source control (Git-based workflows). Familiarity with containerization (Docker) and orchestration (Kubernetes). Strong understanding of security best practices in the context of financial systems. Excellent problem-solving, communication, and collaboration skills. Experience with messaging systems such as RabbitMQ, or Kafka preferred. Experience integrating Generative AI into enterprise or financial applications preferred. Knowledge of performance optimization, accessibility, and SEO best practices preferred. Prior experience in financial services or other regulated industries preferred. To be considered for this position, please apply via LinkedIn or submit a resume directly to ************************** with “Software Engineer” in the subject line. Phillip Capital Inc. will not consider candidates sent by recruiters for this position. Pay range will vary based on role applying for and relevant experience.

Role: Senior Software Engineer (Java) Duration: 12 months Job type: Long term Contract W2 only... The Senior Software Engineer will apply principles of computer science and mathematical analysis to design, develop, test, and evaluate software and systems. This role involves researching, designing, developing, and testing software while contributing to high-impact backend services within the Cat Digital platform. Key Responsibilities: Modify existing software written in Java, and work with databases and database management systems. Create service software, including unit and integration tests. Collaborate with project teams to determine scope, requirements, and limitations. Review project requests to estimate time and cost. Perform complex programming, development, and project management tasks with minimal supervision. Identify and resolve complex technical/application issues, including occasional off-shift or weekend support. Drive application development focused on delivering business value. Mentor and assist software engineers, providing technical direction and support. Maintain high standards of software quality and follow best practices. Proactively seek help when needed after reasonable independent research. Maintain urgency on tasks and follow up on dependencies and blockers. Work Environment: Hybrid schedule; in-office twice per week (may increase as business needs evolve). Required Education & Experience: Bachelor's degree in Computer Science, Electrical Engineering, or related field with 10+ years of experience OR Master's degree with 8+ years of experience. Required Technical Skills: 10+ years of experience designing and developing Java applications. Experience building, deploying, and maintaining software at scale. Strong experience with relational and NoSQL databases. Knowledge of architectural patterns such as MVC, Microservices, and event-driven design. Hands-on experience with CI/CD tools (Jenkins, Azure DevOps, GoCD). Experience deploying and supporting applications in AWS or Azure. Strong Agile/Scrum experience. Experience with AI tools is a significant plus. Experience with message streaming solutions (AWS Kinesis, SQS, SNS, Kafka, RabbitMQ, ActiveMQ). Experience designing RESTful APIs and using API tools (Swagger, Postman, Assertible). Test-driven development and behavior-driven development experience; tools such as Cucumber and Selenium. Experience with datastores such as AWS Aurora, RDS, DynamoDB, MongoDB, Elasticsearch, Cassandra, Redis, MySQL, Oracle. Familiarity with AWS services like API Gateway, ALB/NLB, Fargate, Lambda, S3, CloudWatch. Experience debugging and maintaining software on Linux/Unix systems. Required Soft Skills: Strong computer science fundamentals (data structures, algorithms). Ability to work under pressure and within deadlines. Passion for technology and collaboration. Demonstrated leadership on small to medium-scale projects. If you are interested in W2 contract with direct client then please do share your updated copy of resume on below mention email id. Thanks Shivam EMAIL: ************************************

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.

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