> Markdown version of [/jobs/ext/2298181-web-applications-developer-senior](https://www.wearedevelopers.com/jobs/ext/2298181-web-applications-developer-senior). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Web & Applications Developer Senior - **Company:** Apollo Professional Solutions, Inc. - **Location:** Westminster, CO, United States - **Experience:** Expert - **Salary:** $128,960.0 - **Contract:** Permanent contract - **Skills:** ASP.NET, JavaScript (Programming Language), Application Programming Interfaces (APIs), Application Integration Architecture, Software Applications, Unit Testing, Microsoft Azure, C Sharp (Programming Language), Code Review, Software Debugging, Entity Framework, JQuery, Windows Presentation Foundation, Microsoft SQL Server, Model View Controller (MVC), Oracle Databases, Systems Development Life Cycle, Software Deployment, Software Engineering, Web Services, Enterprise Software Applications, Test-Driven Development (TDD), Asp.net Web Api, Software Application Programming, Git, Integration Tests, Information Technology, Tools for Reporting, Front End Software Development, Restful APIs, Industrial Software, Software Version Control - **Published:** August 29, 2026 - **Apply:** https://public-rest32.bullhornstaffing.com/rest-services/2WAYS0/query/JobBoardPost?where=id=77454&fields=id,title,publishedCategory(id,name),address(city,state),employmentType,dateLastPublished,publicDescription,isOpen,isPublic,isDeleted ## About the Role * Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, plus 4+ years of relevant experience * Master's degree or Ph.D. may substitute for up to two years of experience per advanced degree * Equivalent technical experience may be considered in lieu of formal education * Strong interest in learning new technologies and expanding technical skills * Experience developing applications using C#, WPF, and/or ASP.NET * Experience supporting and maintaining APIs and enterprise applications * Knowledge of front-end UI and middle-tier application development * Experience working within Agile/Scrum development methodologies * Strong analytical, troubleshooting, and problem-solving abilities * Knowledge of web services and application integrations * Experience with Unit Testing, Test-Driven Development (TDD), and/or Behavior-Driven Design (BDD) * Excellent collaboration and communication skills Preferred Qualifications Candidates with experience in the following technologies are highly encouraged to apply: * ASP.NET Web API and RESTful Services * Microsoft SQL Server and/or Oracle Database * Git source control * Azure DevOps * Entity Framework or comparable ORM technologies * jQuery or other JavaScript frameworks/libraries * MVC controls and third-party UI component libraries * Report development and reporting tools * Manufacturing, industrial systems, or process control environments ## Description As a Senior Web & Applications Developer, you will: * Design, develop, test, debug, and maintain web and desktop applications * Support and enhance existing legacy applications and APIs * Collaborate with multidisciplinary engineering and IT teams to deliver business-critical solutions * Participate in peer programming, technical design discussions, and code reviews * Develop unit and integration tests to ensure application quality and reliability * Identify technical challenges and communicate project risks to team leads * Follow established coding standards, best practices, and SDLC processes * Create technical documentation and support application deployment activities * Develop solutions that meet functional requirements and design specifications * Contribute to a positive, team-oriented work environment * Maintain strong working relationships across departments and stakeholders * Perform additional duties as assigned, * Work on impactful software projects in a highly technical environment * Collaborate with experienced engineers and technology professionals * Gain exposure to advanced engineering and manufacturing technologies * Contribute to the full software development lifecycle from design through deployment * Join a team that values innovation, collaboration, and continuous learning ## Related Videos - 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