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Senior .net developer jobs in Thornton, CO

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  • Intermediate .Net Developer

    Kavaliro 4.2company rating

    Senior .net developer job in Denver, CO

    Our client is seeking a Full Stack Software Developer for an exciting contract to hire scenario. The ideal candidate will be proficient in Microsoft Visual Studio and capable of developing robust web applications using ASP.NET Core, WebForms, C#, and JavaScript. This role requires strong database design skills and the ability to write efficient T-SQL queries and stored procedures for Microsoft SQL Server. DUTIES: Develop and maintain web applications using ASP.NET Core, WebForms, C#, and JavaScript. Ability to work well with Franchise Owners/staek holders Design and optimize relational databases; write T-SQL queries, stored procedures, and functions. Collaborate with cross-functional teams to deliver high-quality software solutions. Implement and maintain Web APIs for application integration. Utilize GitHub for version control and code collaboration. Familiarity with DevExpress WebForms, ASP.NET Core, and jQuery controls. Experience with Web API development. Knowledge of GitHub workflows and best practices. REQUIREMENTS: 1-2 years of hands-on experience in full stack .net development. Strong problem-solving skills and attention to detail. Ability to work independently and as part of a team. Good communication skills Exposure to DevExpress components and advanced UI controls. Understanding of modern web development practices and frameworks.
    $86k-113k yearly est. 4d ago
  • Software Developer - DOCSIS/SONU with Telecom Domain (Network & Cable)

    Ampstek

    Senior .net developer job in Denver, CO

    We are looking for experienced consultant with network cable exp, Software dev exp and can understand end to end app life cycle within the Telecom domain. This role is central to ensuring seamless and efficient activation of cable modems and other DOCSIS/SONU devices. Key Skill Requirements: • 8+ Years Experience (Hands-on Developer) • DOCSIS/SONU Domain Expertise: Apply in-depth knowledge of DOCSIS and SONU standards and protocols to architect • Cloud-Native Expertise: Drive the adoption and optimization of AWS services and Kubernetes for deploying, managing, and scaling device activation applications ( EC2, S3, RDS, Lambda, SQS, SNS, VPC, IAM, CloudWatch ) • ACS Adapter Integration: Provide expert-level guidance and hands-on experience Thanks & Regards Alok Ranjan Pathak | Team Lead - US Staffing Email: *********************** | Desk: ************** Ampstek LLC - Global IT Partner | ***************
    $65k-86k yearly est. 3d ago
  • Senior/Lead Software Developer (Rust)

    Maxonic Inc.

    Senior .net developer job in Denver, CO

    Job Title: Senior/Lead Software Developer (Rust) Job Type: CTH or FTE Responsibilities: We are looking for a Senior/Lead Software Engineer for our team, which focuses on creating storage solutions for the most data-intensive workloads. The role will focus on the EMF framework which handles deployment, management and monitoring platform for an HPC Filesystem. EMF is written fully in Rust. The ideal candidate will have experience designing, implementing, and shipping software using modern development tooling and practices. Responsibilities for this role include but are not limited to: Software design and development for new features and maintenance of existing features. Analysis of bug reports and development of software fixes on multiple platforms. Work with the Engineering manager and a geographically distributed team to understand product requirements and features. Contribute to and validate product documentation. Assist with performance tuning of features for specific environments and use-cases. Qualifications: BS/MS in Computer Science, Computer Engineering or equivalent degree/experience. 10+ years of software development experience in Linux environments with Rust, C/C++, Bash scripting, or similar. 10+ years of modern full-stack software development experience including WebAssembly, CSS and HTML preferred. Linux sysadmin experience valuable Strong team player with good communication skills and should be self-starter. Excellent time management skills, with the ability to prioritize, multitask, and work under deadlines in a fast-paced environment. Experience with JIRA, Jenkins, Gerrit, Git, and Github preferred. Prior experience working with enterprise-class or HPC storage systems and/or distributed systems a bonus About Maxonic: Since 2002 Maxonic has been at the forefront of connecting candidate strengths to client challenges. Our award winning, dedicated team of recruiting professionals are specialized by technology, are great listeners, and will seek to find a position that meets the long-term career needs of our candidates. We take pride in the over 10,000 candidates that we have placed, and the repeat business that we earn from our satisfied clients. Interested in Applying? Please apply with your most current resume. Feel free to contact Suji Chandran (**************** / *************** for more details.
    $86k-116k yearly est. 3d ago
  • Software Engineer

    Talent Stack

    Senior .net developer job in Aurora, CO

    Job Title: Software Engineer Clearance: Active & transferable TS/SCI with Polygraph Salary: $130,000 - $145,000 Benefits: This role includes Medical, Dental, and Vision coverage, 6 weeks of paid PTO, Short-Term Disability, a 401(k) with 5% company match, and up to $8,000 in relocation assistance. Full Benefits package can be sent upon request. About the Company This role is being managed by Talent Stack LLC, a woman-owned recruiting firm specializing in cleared and technical placements. We proudly represent a confidential defense-focused client supporting critical national security programs. About the Role We are seeking a Software Engineer to support mission-critical ground systems for a leading defense customer. In this role, you will evaluate operational software issues, provide rapid solutions, and support integration and verification activities for new software baselines. This position is hands-on and ideal for engineers who thrive in real-time, high-impact operational environments. What You Will Do Support troubleshooting, maintenance, and documentation of operational software applications. Troubleshoot and isolate sources of system errors or unexpected performance. Execute testing, integration, and delivery of new software baselines. Perform in-depth analysis across complex, end-to-end operational systems. Work onsite within a secure environment supporting mission operations. Required Qualifications Bachelor's degree in STEM. 2+ years of professional level experience at a government contractor or agency. Experience coding in Java or C++. Hands-on experience with software development and/or software integration. Active, transferable TS/SCI with Polygraph required prior to start. Preferred Qualifications Experience with Git, Bitbucket, or similar configuration management tools. Ability to work in a structured configuration-controlled O&M environment supporting real-time applications. Experience with Linux/Unix, GIT, and SQL. Familiarity with JIRA, BitBucket, and Confluence. This role requires an active and transferable DoD Top Secret security clearance, with the ability to obtain and maintain TS/SCI access and polygraph. Only U.S. citizens are eligible for security clearance. Candidates without the required clearance cannot be considered for this position. Recruitment Agencies Disclaimer This position is posted for direct applicants only. We kindly request that external recruiters, staffing agencies, or search firms refrain from submitting candidates. Unsolicited resumes will be treated as direct applications, and no agency fees will be honored. Reference Number: X15
    $130k-145k yearly 3d ago
  • Software Engineer

    Insight Global

    Senior .net developer job in Englewood, CO

    Hybrid onsite in Englewood, CO $50-65/hr Ongoing long-term contract Required Skills & Experience Experience mentoring other developers and delivering full-stack software features Proficiency with Node.js, React, TypeScript, Python, and GraphQL Experience with relational (SQL) and NoSQL databases Experience deploying cloud-based applications Familiarity with source control and branch management Experience working with microservices Bachelor's degree in a related field or equivalent experience Nice to Have Skills & Experience 6 or more years of professional experience in software development Experience with AWS infrastructure and services AWS Developer Certification Experience with Git-based platforms (GitHub, GitLab, Bitbucket) Familiarity with Docker, Kubernetes, Redis, and an ORM built over a relational database Understanding of infrastructure as code (IaC) and Terraform Experience with experimentation, statistical testing, and data analysis Master's degree or higher in a related field Job Description A client of Insight Global is looking to add a SR Software Engineer to their team for a Hybrid position in Englewood Colorado. As a Senior Software Engineer on the Configuration Management and eXperimentation team (CMX), in the applied AI and data science program, you'll help design and develop software solutions that expand our custom experimentation and configuration management platform. You'll work in a full-stack environment using AWS, MySQL, Redis, Prisma ORM, Node.js, Python, GraphQL, Nest.js, and React. As a member of the CMX team, you'll be part of a supportive, cross-functional team that values mentorship, continuous learning, and shared success. You'll work closely with engineers, data scientists, designers, and product stakeholders to solve complex problems and deliver impactful solutions. The CMX team is responsible for enhancing and supporting custom, enterprise-level experimentation and configuration management platforms. We facilitate experimentation and configuration management through web-based UIs and supporting services that enable users to draft and deploy A/B tests, progressive deployments, and JSON configuration changes. We are committed to building a team with diverse experience where everyone can bring their full self to the team.
    $50-65 hourly 1d ago
  • Sr. Software Engineer - Java

    Ledgent Technology 3.5company rating

    Senior .net developer job in Louisville, CO

    Title: Java Developer Duration:Direct-hire Salary range: Up to $150,000 This role focuses on building scalable, secure, and high-performing applications within a modern cloud-based environment. The developer will contribute to the design, implementation, and improvement of backend services, integrations, and system components. The ideal candidate is strong in Java, experienced with AWS tools, and comfortable working in an Agile setting. This position collaborates closely with cross-functional teams, supports high-impact technical initiatives, and helps shape best practices across the development lifecycle. Responsibilities Develop and maintain reliable, efficient backend services and software components. Participate in solution design for complex features and enhancements, ensuring adherence to engineering standards and control requirements. Troubleshoot issues across systems, identify root causes, and propose broad-reaching improvements. Work closely with product, QA, and architecture teams to deliver high-quality functionality. Contribute to documentation, design discussions, and code reviews. Support Agile workflows and contribute to continuous improvement efforts. Apply strong understanding of system interactions, integrations, and data flows to ensure seamless functionality. Promote best practices for performance, scalability, and resiliency. Skills 8-10+ years of professional Java development experience. Deep experience with Java/J2EE technologies. Strong AWS knowledge (EC2, S3, Lambda, SNS/SQS, etc.). Experience with databases such as MongoDB, MySQL, or ElasticSearch. Familiarity with event-driven design or rules engines. Knowledge of scalable system design concepts and architecture patterns. Prior experience in Agile/Scrum environments. Excellent problem-solving skills and ability to manage multiple priorities. Strong communication and collaboration capabilities. Desired Skills and Experience Skills 8-10+ years of professional Java development experience. Deep experience with Java/J2EE technologies. Strong AWS knowledge (EC2, S3, Lambda, SNS/SQS, etc.). Experience with databases such as MongoDB, MySQL, or ElasticSearch. Familiarity with event-driven design or rules engines. Knowledge of scalable system design concepts and architecture patterns. Prior experience in Agile/Scrum environments. Excellent problem-solving skills and ability to manage multiple priorities. Strong communication and collaboration capabilities. All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance. For unincorporated Los Angeles county, to the extent our customers require a background check for certain positions, the Company faces a significant risk to its business operations and business reputation unless a review of criminal history is conducted for those specific job positions.
    $150k yearly 4d ago
  • Senior Insights Developer

    Eliassen Group 4.7company rating

    Senior .net developer job in Englewood, CO

    Our client, an industry leader in telecommunications, has an excellent opportunity for a Senior Insights Developer to work on a 12+ month contract opportunity. Work will be a hybrid on-site/remote schedule in Englewood, CO. The Senior Insights Developer will lead projects to create automated dashboards, covering all phases throughout the entire development cycle (design to production) by utilizing ETL, data analysis, and data visualization skills. Due to client requirement, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $70 - $78 / hr. w2 Responsibilities: Collaborate with stakeholders to gather and document requirements, assessing the feasibility of analysis projects. Extract, analyze, and interpret data from various sources using statistical techniques, providing actionable insights and reporting. Capture and document requirements in Jira, ensuring clarity and alignment with business objectives. Review and validate solutions to ensure they meet specified requirements and business needs. Respond to data inquiries from internal teams, providing timely and accurate information. Work daily within the AWS environment, utilizing tools such as EMR, Lambda, S3, Step Functions, and Athena to manage and analyze data. Requirements: Bachelor's degree in Computer Science or equivalent Advanced knowledge of SQL, with a focus on big data environments. Proven experience with business intelligence solutions and the development lifecycle. Proficiency in data visualization tools, particularly Tableau. Hands-on experience with AWS services. Experience with Python or PySpark is advantageous. Familiarity with Hadoop ecosystems. Strong relationship-building and collaboration skills, especially in cross-functional teams. Effective communication skills, both written and verbal, with the ability to create concise and impactful presentations tailored to specific audiences. Experience in leveraging and reconciling data across multiple source systems. Translate business requirements into SQL queries and understand existing SQL code. Strong analytical skills, creativity in problem-solving, and attention to detail. Experience with ad hoc queries, data analysis development, and SQL development. Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact ********************. Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range. W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality. JOB ID: JN -112025-104380
    $70-78 hourly 5d ago
  • Senior Software Engineer

    Talent Navigation Experts

    Senior .net developer job in Greenwood Village, CO

    About the Role: This role is a Senior .NET Full Stack Developer for a client of ours in the tech solutions space. Looking for someone with 5+ full stack development. Required Skills: Bachelor's Degree in IT, Computer Science, or similar 5+ years of full stack development using .NET (C#) frameworks NoSQL experience AWS and / or Azure experience About the Company: Our client in the tech solutions space is a small but growing company based in Colorado. They have a superior software product and are continuing to grow at a rapid pace. They work hard and have an excellent culture.
    $81k-106k yearly est. 2d ago
  • Senior Back-End Software Engineer (Golang)

    Hydrogen Group

    Senior .net developer job in Denver, CO

    We currently have multiple, full-time direct hire, Senior Software Engineering roles with a customer in Denver within one of the fastest growing global industries. Please reach out for more details! Qualifications Previously worked on high throughput and low latency systems. Experience in coaching and mentoring in technical subject areas. Ability to prioritize people and conversations over process. Previously thrived in a fast-paced agile environment. An aptitude and enjoyment in learning new technologies. Commercial experience using GCP with Kubernetes. Experience Microservice development, ideally with Golang, Rust, or equivalent. Knowledge of React and Typescript. Exposure to C#, .net, MSSQL and/or WPF. Experience in a delivery focused culture. ...
    $81k-106k yearly est. 1d ago
  • Sr UI Software Engineer

    SBS Creatix 3.6company rating

    Senior .net developer job in Boulder, CO

    Job Title: Senior UI Software Engineer (On Site) No C2C Offers please. Candidates must be able to work in the US without a sponsor. Our client is engineering a next-generation Work Orchestration platform-one that transforms complex organizational processes into clear, intuitive, action-driven experiences. Their UI and UX are central to that mission. They develop their front end using WiseJ, enabling engineers to build rich, enterprise interfaces entirely in C# and .NET-with strongly typed code, centralized controls , and without the typical bloat of sprawling JavaScript frameworks and constantly shifting third-party libraries. Their engineering team is supported by a world-class, fully-managed Figma Design System, including design tokens, responsive variants, and component-compliant wireframes and prototypes. This gives engineers a complete, consistent UI blueprint-freeing them to focus on architecture, performance, and behavior rather than recreating UI patterns from scratch. If you want to build beautifully engineered, large-scale UI systems in an environment designed for clarity and craftsmanship, Nexee is the place. Position Overview: We are seeking a Senior UI Software Engineer to lead development of a an enterprise-grade interface. You will architect highly interactive, intelligent User Interfaces using a unified .NET and WiseJ stack, while collaborating closely with product and design to deliver a first-class user experience. Key Responsibilities • Architect and implement high-performance user interfaces using WiseJ, C#, and .NET, with a strongly typed and unified codebase. • Translate Figma design system components, wireframes, and prototypes directly into consistent, pixel-aligned engineering implementations. • Develop adaptive layouts, multi-panel interfaces, drag-and-drop tools, and other advanced interaction patterns for enterprise-scale use cases. • Maintain clean, composable, reusable UI architecture that avoids unnecessary libraries and minimizes complexity. • Collaborate with UX, product, and backend engineering to ensure seamless integration across all system layers. • Contribute to UI standards, internal tooling, code quality, and mentorship of other engineers. • Team management experience. Qualifications Required • Bachelor's in Computer Science, Engineering, or related field. • 6-10+ years of UI engineering experience with complex, data-heavy, or enterprise platforms. • Strong proficiency in C#, .NET, Visual Studio, and object-oriented UI development. • Experience designing and shipping real-time, component-driven UI systems. • Deep understanding of UI architecture, state management, and interaction modeling. Preferred (Not Required) • Experience with WiseJ or other server-managed UI frameworks. • Experience working with structured Figma design systems, including tokens, variants, and engineering-aligned prototypes. • Background building reusable UI component libraries and internal platform frameworks. • Familiarity with distributed systems, real-time data and workflow automation tools. Why this job? • Competitive salary and benefits • Collaborative, high-talent, on-site engineering culture in Boulder, CO • A unified, strongly typed UI stack-no fractured front-end layers • Direct influence over a platform designed for massive scale • A culture that values clarity, simplicity, craftsmanship, and deep work How to • Competitive salary and benefits. • A flexible and dynamic work environment. • Opportunities for professional growth and development. • A culture that values work-life balance. • The chance to be part of a transformative enterprise solution.
    $87k-109k yearly est. 1d ago
  • Software Engineer

    Understanding Recruitment

    Senior .net developer job in Denver, CO

    🚀 Graduate Software Engineer - Intelligent Transport 📍 Denver, CO | Hybrid (3 days onsite) Join a fast-growing AI-driven logistics startup transforming global transport. With backing from top-tier investors, we're building systems that make moving goods smarter, faster, and safer. Kick-start your career by building technology that ships and makes a real-world impact. 🌟 What You'll Do Build end-to-end product features with TypeScript (React/Next.js) and Python (FastAPI/Django) Integrate real-time AI models into production systems Create smooth, high-performance user experiences and scalable APIs Collaborate with senior engineers and ship production code from day one 💡 What You'll Gain Hands-on experience deploying AI in real-world applications Mentorship from a senior Denver-based engineering team Fast-moving startup environment where your ideas matter Real ownership - see the impact of your work immediately 👀 What We're Looking For Degree in Computer Science or related field (2024/2025 grads welcome) Strong programming skills in Python and/or TypeScript Curiosity, initiative, and a problem-solving mindset Ability to work onsite in Denver at least 3 days per week Build the systems that move the world. Apply now and make your mark from day one.
    $62k-84k yearly est. 1d ago
  • Sr. Software Engineer (Typescript, AWS Lambda, IAM)

    Infovision Inc. 4.4company rating

    Senior .net developer job in Denver, CO

    Job Description: Sr. Software Engineer (Typescript, AWS Lambda, IAM) Duration: Long-term Responsibilities: Design and implement back-end APIs on AWS Lambda in TypeScript Write and maintain Terraform (IaC) configurations for deploying infrastructure to multiple environments Skills Needed: You have a BS degree or higher in Computer Science, Engineering, or related field 5+ years of experience as a Software Engineer, including professional development in TypeScript Experience with object-oriented design and algorithms Highly skilled in at least one modern programming language. (Ex. Node.js, TypeScript, Golang, Python or Java) Candidates with significant experience in AWS technologies and infrastructure, who hold current AWS certifications are particularly well qualified for this position Experience with Identity Access Management (IAM) tooling and OAuth best practices (Auth0, PingIdentity, Cognito, etc.) Experience mentoring other developers Knowledge of professional software engineering practices & best practices for full software development life cycle, including coding standards, code reviews, source control management, test-driven development, continuous deployments and agile methodologies Outstanding communication, organizational and problem-solving skills Exposure to operating large-scale distributed systems, including security, defining and monitoring service metrics, infrastructure management and scaling and DevOps best practices Collaboration is fun and easy for you. You are self-driven, but you enjoy sharing and mentoring your team and when a decision has been made, you're happy to support it Experienced with cross-platform development, and you have a deep understanding of the software development life cycle Confident in your abilities to command and understand application build pipelines and share those with your team in a way they can understand Experienced in system design and development, but you are also a powerful leader, which means you stay accountable for your successes and shortcomings
    $81k-106k yearly est. 2d ago
  • Senior Java Software Engineer

    Amtex Systems Inc. 4.0company rating

    Senior .net developer job in Denver, CO

    Java Developer with Surescript We are seeking a highly skilled Java Developer with strong expertise in Microservices and Spring Boot. The ideal candidate should have a solid understanding of cloud modernization practices and some exposure to mobile development (iOS or Android). Key Responsibilities: Design, develop, and maintain scalable Java-based applications using Spring Boot and Microservices architecture. Contribute to cloud modernization initiatives, including migration and optimization of existing platforms. Collaborate with cross-functional teams to deliver high-quality software solutions. Participate in code reviews, troubleshooting, and performance tuning. Work closely with mobile development teams to ensure seamless integration across platforms. Required Skills: Strong hands-on experience with Java, Spring Boot, and Microservices. Good understanding of cloud platforms (Azure, or GCP). Knowledge or experience in iOS or Android application development. Familiarity with CI/CD pipelines, RESTful APIs, and containerization (Docker/Kubernetes). Excellent problem-solving and communication skills. Java 21 with minimum 7 years' experience. Preferred Qualifications: Experience in cloud migration or modernization projects. Exposure to DevOps tools and practices. Bachelor's degree in Computer Science, Engineering, or a related field.
    $67k-87k yearly est. 2d ago
  • Entry Level .Net Developer

    9To9 Software Solutions

    Senior .net developer job in Louisville, CO

    9to9 Software Solutions is a global IT Services, Product Development, and Business Solutions firm based in Connecticut. We focus on delivering flexible IT solutions for today's complex business technology. We drive Success for Client Business by leveraging our expertise in IT Solutions and Business Process improvements. We deliver the critical skills and knowledge base to our clients to succeed in today's technology-dependent marketplace. Our main focus is on providing software solutions & services that add business value to our clients. We provide end-to-end solutions, help execute the entire project and provide ongoing application support both in terms of processes or technical review. Mission Uniting the power of advanced technology experts, deep business insight and limitless innovation; we aim to unravel our customers' most complex business problems by providing innovative, and best-in-class solutions. We strive to maintain, develop and continuously improve our position as a world class supplier engaged in providing software solutions and professional services to our customers in a prompt, efficient and cost effective manner. Job Description Responsibilities: Under general direction, designs, develops, troubleshoots, debugs, and implements software code using Java, JavaScript, HTML, SQL, and XML for software components of the web applications. Works with graphic designers and other members of a project team to develop the site concept, interface design, and architecture of the website. Responsible for interface implementation. Integrates web applications with backend databases. Deploys large web-based transaction systems using application servers. Researches, tests, builds, and coordinates the integration of new products per production and client requirements. Requires strong navigation and site-design instincts. Minimum Qualifications: A Bachelor's or Associate's degree in Computer Science or related field. Creative problem-solving abilities and strong work ethic with “can do” attitude. Ability to take high-level requirements and compile them into development tasks. Ability to thrive in a team/collaborative environment. Ability to function at a fast pace with multiple deadlines. Possess a SECRET clearance or have the ability to obtain one. Must have at least an interim SECRET to begin work on the contract. Must be CompTIA Security+ certified. Must obtain as a related certification relevant to the computing environment, such as Oracle Certified Associate, with the first 90 days of employment. Must be enrolled in CompTIA Continuing Education program. Preferred Qualifications: 0+ years of software development experience developing Java web applications (School experience considered). Experience with Java Design patterns (MVC, DAO, Singleton, Factory, etc.). Experience supporting JVMs in Unix/Linux/Windows environments. Experience with frameworks such as SpringMVC, JasperReports, and Hibernate. Knowledge of SOA to include SOAP/WSDL and RESTful services. Experience using Eclipse, IntelliJ IDEA, or NetBeans. Experience with shell scripting, parsing, and analyzing log files with REGEXP. Oracle Certified Associate Java 1.8 or Oracle Certified Professional Java 1.8. Ability to estimate tasks based off of technical debt, level of effort, and complexity. Experience with RDBMS such as Oracle, SQLServer, or similar databases. Experience with software development processes such as SDLC, Scrum, or similar. Experience with JEE/JSP Containers such as WebLogic, JBoss, or Tomcat (or similar). Experience using version control tools such as Subversion. Thanks , George ************ ext 225 Qualifications Bachalors/Masters in computer science Additional Information All your information will be kept confidential according to EEO guidelines.
    $68k-92k yearly est. 1d ago
  • NET, WCF/WebServices (RESTful/SOAP) Middleware Development

    Sonsoft 3.7company rating

    Senior .net developer job in Lone Tree, CO

    Sonsoft , Inc. is a USA based corporation duly organized under the laws of the Commonwealth of Georgia. Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services. Job Description At least 4 years of experience in working on middleware development in .Net. Building components, libraries, Services using C#.Net, Entity Framework, LINQ, WCF/WebServices/WebAPI in an SOA world. Strong understanding of processes and threads with at least 4 years of experience in creating Multithreaded, multi-node, high performing applications. Ability to effectively improve the performance of the components/applications/services. Deep understanding and application of object oriented programming Well versed with various design patterns. At least 4 years of experience in creating abstract business layer and data access layers. Strong SQL Server development knowledge with at least 2 years of experience in writing complex DB objects as well as performance tuning it. At least 3 years of experience in Agile, Scrum or Kanban Methodologies. At least 3 years of experience in tools such as Jira, Jenkins and Continuous Integration and Continuous Delivery. Knowledge in NO-SQL environment, MongoDB is a value add. At least 3 years of experience in Design and architecture review. Ability to work in team in a diverse/ multiple stakeholder environment Experience in Trading, Financial Services and Wealth Management is preferred. Experience and desire to work in a Global Delivery Environment with teams located at various locations. Qualifications Bachelor's degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education. Minimum of 4 years of experience in the field of Information Technology. Additional Information ** U.S. citizens and those authorized to work in the U.S. are encouraged to apply . We are unable to sponsor at this time. Note:- This is a Full-Time Permanent job opportunity for you. Only US Citizen, Green Card Holder, GC-EAD , H4-EAD & L2-EAD can apply. No OPT-EAD, TN Visa & H1B Consultants please. Please mention your Visa Status in your email or resume .
    $65k-85k yearly est. 1d ago
  • Web Applications Developer

    Collabera 4.5company rating

    Senior .net developer job in Denver, CO

    Established in 1991, Collabera has been a leader in IT staffing for over 22 years and is one of the largest diversity IT staffing firms in the industry. As a half a billion dollar IT company, with more than 9,000 professionals across 30+ offices, Collabera offers comprehensive, cost-effective IT staffing & IT Services. We provide services to Fortune 500 and mid-size companies to meet their talent needs with high quality IT resources through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs. Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Collabera offers a full range of benefits to its employees including paid vacations, holidays, personal days, Medical, Dental and Vision insurance, 401K retirement savings plan, Life Insurance, Disability Insurance. Job Description • Develop Windows based applications for our Litigation solution offering leveraging Web Site, Web Service, Windows Service and other related technologies. • Create enterprise-level software that interacts with Active Directory, MS SQL databases, Citrix environments and other third party components. • Be an active member of a world class team to produce maintainable, high quality code using the latest development methodologies. • Partner with our central operations team and data center organization on delivering enhancements to our environment and applications. • Help drive continuous improvement in how we develop and deliver a high quality commercial grade offering for the Legal industry. Qualifications • Experience with C#, SQL • Familiar with source control systems, like TFS. • Excellent skills in communicating and writing code as part of a team. • Highly self-motivated and self-directed with the ability to work with limited supervision - yet also an avid team player. • Excellent analytical and problem-solving skills and a high degree of attention to detail. • Bonus • Citrix experience • JavaScript • Experience supporting applications in a highly distributed, enterprise environment. • Experience using Visual Studio 2010/2012 and TFS Source Control • Education and Experience: • Bachelor's degree or equivalent experience required. Computer science degree preferred. • 5+ years of relevant experience, preferably in an agile development environment. Additional Information To know more on this position, please contact; Sanjay Nair ************ ******************************
    $67k-89k yearly est. Easy Apply 1d ago
  • Software Developer WPF/.NET

    DME Forensics 3.2company rating

    Senior .net developer job in Golden, CO

    About Us DME Forensics is an established innovative technology and services company focused on providing software and advanced technical services to the criminal justice and civil litigation communities. Our flagship software product, DVR Examiner, has revolutionized the process of recovering video evidence from surveillance DVRs and is used by hundreds of federal, state, local and international law enforcement agencies. Our team is fortunate to be able to make a difference within communities around the world by assisting these agencies in recovering valuable evidence of significant incidents. Job Summary DME Forensics is looking for a software developer willing to join our small, close -knit team. You will chiefly be working on our flagship product, DVR Examiner, which has been built mostly from .NET technologies over the last seven years. Your primary duties would include the development and maintenance of the main application user interface. You will work with product ownership and design teams to develop, maintain, and improve upon front end application components. In addition to developing new features and resolving current issues, your duties would include consolidating our code base and updating our legacy code to meet our current policies. This may include performance and memory testing. You will be working with subject matter experts and other developers in the team. To be successful in this role you will have a good grasp of .NET, WPF, and related technologies/practices, including automated UI testing, unit testing, use of tools like ReSharper for testing/refactoring, and agile development environments. This role would suit someone who enjoys creating a great visual and workflow experience for end -users and refining code into a developer -friendly finished product. Salary range ($55,000 to $155,000) reflects Junior to Senior positions. The position and salary offered will depend on your experience. *** At this time, we are primarily interested in candidates in the Denver metro area. If you are currently located somewhere else, but are planning a relocation to the area, please be sure to include that information in your reply. *** Our Technology Stack .NET: C#, WPF, Visual Studio 2019, ReSharper .NET MVC / WebAPI, Entity Framework and SQL Server Azure Devops Git Source Control xUnit Testing Framework Duties and Responsibilities Participates in the entire application lifecycle, with a specific emphasis on documentation, testing, coding, and debugging. Writes clean code to develop functional internal and external applications Maintains, troubleshoots, and debugs applications Designs and performs unit tests to optimize performance and maintainability Refactors, upgrades, and improves code base Collaborates with product owners, UX designers, and engineers to integrate new features and functionality Gathers and addresses technical and design requirements Provides documentation, training, and support to internal teams Builds reusable code and libraries for future use Follows emerging technologies Participates in code reviews Performs other related duties as assigned by management Requirements Bachelor's Degree from four -year college or university in Computer Science, Software Engineering, Application Development or a relevant field highly preferred 1 -3 years experience working with .NET and WPF Strong organizational skills and attention to detail In -depth understanding of design and development with an emphasis on proper coding conventions and patterns Experience working within a TDD environment Experience working in a small company/small team environment Benefits Competitive salary commensurate with experience You will be able to choose from a variety of health insurance plans, including a company -paid option. Company -paid long term, short term, and life insurance offerings Generous PTO policy 401(k) match (currently at 4%) Flexible scheduling options A break room stocked with coffee, soda, water, and various snacks Dog friendly workplace Company BBQs, potlucks, team lunches, and holiday party (or virtual equivalents)
    $55k-155k yearly 60d+ ago
  • AI/ML Software Engineer

    Toyon Research Corporation 4.1company rating

    Senior .net developer job in Fort Collins, CO

    U.S. Citizenship Required. Ability to qualify for a US Department of Defense security clearance required. is in-person. Toyon is seeking highly qualified AI/ML Software Engineer candidates to develop software in the Python or C++ languages in support of Artificial Intelligence (AI) / Machine Learning (ML) applications. Our software engineers work closely with our researchers and customers to create state-of-the-art solutions. Experience with Reinforcement Learning (RL), Large Language Models (LLMs), Computer Vision, other AI/ML techniques, or video or signal processing is a plus. Experience working in a collaborative environment with configuration management and version control tools is also desired. Candidates should possess strong math and physics knowledge to enable developing advanced AI/ML software to solve sensor data processing or control problems. Requirements Candidates for the AI/ML Software Engineer position should have a strong background in engineering, computer science, physics, and/or mathematics. An advanced degree (M.S./Ph.D.) or a Bachelor's degree and at least two years of industry experience are required. WE OFFER AN EXCEPTIONAL EMPLOYEE BENEFITS PACKAGE! Competitive Industry Pay 100% Employer-Paid Medical Insurance Premium HSA with Employer Contributions Dental and Vision Coverage Options Paid Holidays Paid Vacation and Sick leave Company Funded 401(k) and Profit Sharing Plans Employee Stock Ownership Plan (ESOP) Life and Disability Insurance Paid Parental Leave Discretionary Bonus Eligibility The annual pay range for the AI/ML Software Engineer position is $110,000 to $190,000. The posted pay range values provide the candidate with guidance on annual base compensation for the position, at a full time level of effort, exclusive of overtime, bonus, and benefits-related compensation, over a range of qualifications that may fit hiring objectives. Toyon Research Corporation will consider the individual candidate's education, work experience, applicable knowledge, skills and training, among other factors, when preparing an offer of employment. Pay Transparency Nondiscrimination Provision Equal Opportunity Employer including Disability and Veterans Applicant Privacy Notice Learn more about our company in our latest video, We are Toyon. The application window for this posting will remain open until the position is filled. Ref #2550-C
    $110k-190k yearly 60d+ ago
  • Software Developer/.Net Developer

    Mindlance 4.6company rating

    Senior .net developer job in Denver, CO

    • The technology stack will center on C#, .Net Framework, ASP.NET, JavaScript, Angular JS, and MS SQL Server/Oracle/Mongo development with a strong focus in Object-Oriented application design & patterns and use of Shared Platforms/PaaS. • We are embarking on modernizing the platform and our services to enhance the business and customer s overall experience. Additional Job Details: What you have: • The candidate MUST have demonstrated capabilities with object oriented design/web application development, strong communication skills, team player, and a self-starter who is passionate about developing technology. Required Skills/Experience: • Bachelor s Degree in Computer Science, Computer Information Systems or related field/equivalent experience Expertise in most of the following tools: • Visual Studio, Team Foundation Server, source control JIRA Expertise in most of the following Microsoft technologies: • .Net Framework, WCF, ASP.NET, Web Forms, MVC, Web API, Qualifications Expertise in most of the following technologies and protocols: • Web Services, JSON, XML, HTTP, SOAP, REST • 5+ years of experience in building web applications • 3+ years of progressive front-end or full stack development experience • 2+ years of experience in building REST services ASP.NET Web API Strong knowledge of JavaScript design patterns and frameworks such as Angular.js Strong communication and problem-solving skills • Ability to effectively communication across teams and roles (business partners and technology teams) Passionate about leveraging technology to build products that "wow" users Desired Skills: • Strong demonstrated ability to interpret requirements and design solutions to fit those requirements • Familiarity with Agile methodologies is a plus Willingness to knowledge transfer and work with teammates • Experience in MEAN stack (Mongo, ExpressJs, Angular, Node) • Experience with javascript libraries (Bower, Grunt, Gulp) • Experience with JavaScript unit testing frameworks (Karma, Jasmine, PhantomJs) and orchestration tools is a plus Additional Information Thanks & Regards Praveen K. Paila ************
    $74k-97k yearly est. 1d ago
  • Software Developer

    Janus Henderson Group 4.8company rating

    Senior .net developer job in Denver, CO

    Why work for us? A career at Janus Henderson is more than a job, it's about investing in a brighter future together. Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right. Our Values are key to driving our success, and are at the heart of everything we do: Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust If our mission, values, and purpose align with your own, we would love to hear from you! Your opportunity * A hands-on technical role * An opportunity to join a cloud-first asset manager with development in Azure * To be part of an agile development team working across front-office functions * To develop in C#, Typescript/Angular, SQL, Python, Databricks, and Snowflake * Training to enhance your professional development and engineering skills * To contribute to technical design * To take ownership of requirements, development, test, and implementation * Communicate collaboratively across several technology teams and business partners * Carry out other duties as assigned What to expect when you join our firm * Hybrid working and reasonable accommodations * Excellent career growth * Generous Holiday policies * Excellent Health and Wellbeing benefits including corporate membership to ClassPass * Paid volunteer time to step away from your desk and into the community * Support to grow through professional development courses, tuition/qualification reimbursement and more * All-inclusive approach to Diversity, Equity, and Inclusion * Maternal/paternal leave benefits and family services * Complimentary subscription to Headspace - the mindfulness app * All employee events including networking opportunities and social activities * Lunch allowance for use within our subsidized onsite canteen Must have skills * Sound knowledge of any programming language (C#, Python, and/or JavaScript preferred) * Appreciation of Object Orientated Programming principles * Awareness of cloud-compute; experience of Azure a plus * An interest in Investment Management * Confident communicator: able to argue a point concisely and deal positively with conflicting views. * Degree educated or equivalent in mathematics or scientific/engineering discipline. Nice to have skills * Craftsman-like approach to building software; takes pride in engineering excellence and instils these values in others * Demonstrable passion for technology e.g. personal projects, open-source involvement * Intellectually robust with a keenly analytic approach to problem solving * Self-organized with the ability to effectively manage time across multiple projects and with competing business demands and priorities * Focused on delivering value to the business with relentless efforts to improve process * Strong interpersonal skills; able to establish and maintain a close working relationship with team members and senior business stakeholders alike * Ability to communicate information technology concepts to non-technology personnel * Problem ownership - takes responsibility for identified issues and works to resolve in a pragmatic manner Supervisory responsibilities * No Potential for growth * Mentoring * Leadership development programs * Regular training * Career development services * Continuing education courses Compensation information The base salary range for this position is $60,000 - $75,000. This range is estimated for this role. Actual pay may be different. This role will remain open through then end of October 2025. Colorado law requires an estimated closing date for job postings. Please don't be discouraged from applying if you see this date has passed. You will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role. At Janus Henderson Investors we're committed to an inclusive and supportive environment. We believe diversity improves results and we welcome applications from candidates from all backgrounds. Don't worry if you don't think you tick every box, we still want to hear from you! We understand everyone has different commitments and while we can't accommodate every flexible working request we're happy to be asked about work flexibility and our hybrid working environment. If you need any reasonable accommodations during our recruitment process, please get in touch and let us know at ****************************. #LI-LN1, #LI-HybridN1, #LI-Hybrid Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee's job functions (as determined by Janus Henderson at its sole discretion). All applicants must be willing to comply with the provisions of Janus Henderson Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants' past political contributions or activity may impact applicants' eligibility for this position. Janus Henderson is an equal opportunity /Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. All applications are subject to background checks. Nearest Major Market: Denver
    $60k-75k yearly 9d ago

Learn more about senior .net developer jobs

How much does a senior .net developer earn in Thornton, CO?

The average senior .net developer in Thornton, CO earns between $63,000 and $113,000 annually. This compares to the national average senior .net developer range of $72,000 to $124,000.

Average senior .net developer salary in Thornton, CO

$84,000
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