Marathon TS
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$115,000.00/yr - $125,000.00/yr A notable a full-service technology firm is looking for an Application Developer that will provide technical support and software expertise to enable the efficient development, deployment, and maintenance of custom applications. This role will be in support of the Congressional Budget office and will work closely with development teams to troubleshoot issues, implement performance enhancements, and deliver secure, scalable software solutions in a mission-critical environment. Job Title: Application Developer Place of Performance: Ford Building, Downtown Washington, DC Work Schedule: Standard work week, Monday through Friday – 5 days on-site Clearance Requirements: U.S. Citizenship required. Must be able to obtain and maintain a Public Trust Tier 2 clearance (background check required). Key Responsibilities: Collaborate with cross-functional teams to design, develop, and maintain custom applications and backend services. Troubleshoot and resolve technical issues across application environments. Develop, deploy, and maintain RESTful APIs and web services using ASP.NET Core Web API. Automate operational tasks using scripting languages such as Bash, PowerShell, or Perl. Design and maintain SQL Server databases, including performance tuning, stored procedures, and functions. Leverage GitHub Enterprise for version control and CI/CD pipelines. Apply security best practices across application design and implementation. Support other technical tasks as assigned in support of operational goals. Required Skills & Qualifications: Strong experience in C#, ASP.NET MVC, ASP.NET Core, and Web API development. Solid understanding of RESTful services and modern API architecture. Demonstrated experience with relational databases and advanced SQL, including stored procedures and performance tuning. Familiarity with ASP.NET Core middleware, dependency injection, Razor views, and security features (auth/authz/data protection). Experience in jQuery DOM manipulation, AJAX methods, and plugin integration. Proficiency with responsive design principles and Bootstrap grid/component systems. Experience automating tasks and workflows using Bash, PowerShell, or Perl. Experience with GitHub Enterprise for source control and collaborative development. Preferred Education: Bachelor's degree in Computer Science, Information Technology, or a related technical field. Preferred Certifications: Certified Software Development Professional (CSDP) (ISC)² CSSLP – Certified Secure Software Lifecycle Professional GitHub Actions Certification AWS Certified Developer CompTIA Security+ Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status"). Seniority level
Seniority level Mid-Senior level Employment type
Employment type Contract Job function
Job function Information Technology Referrals increase your chances of interviewing at Marathon TS by 2x Inferred from the description for this job
Medical insurance Vision insurance 401(k) Get notified about new Application Developer jobs in
Washington, DC . Washington, DC $80,000.00-$150,000.00 9 months ago Washington, DC $80,000.00-$120,000.00 4 days ago Rockville, MD $55,000.00-$125,000.00 2 months ago Junior Full Stack Software Engineer (JAVA)
Washington, DC $120,000.00-$135,000.00 1 week ago Annapolis Junction, MD $12,000.00-$150,000.00 4 weeks ago Fort Meade, MD $130,000.00-$160,000.00 3 days ago Junior Full Stack Software Engineer (Part-Time/Internship)
Columbia, MD $92,000.00-$117,000.00 5 months ago Arlington, VA $130,000.00-$180,000.00 1 month ago Annapolis Junction, MD $110,000.00-$130,000.00 1 month ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
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$115,000.00/yr - $125,000.00/yr A notable a full-service technology firm is looking for an Application Developer that will provide technical support and software expertise to enable the efficient development, deployment, and maintenance of custom applications. This role will be in support of the Congressional Budget office and will work closely with development teams to troubleshoot issues, implement performance enhancements, and deliver secure, scalable software solutions in a mission-critical environment. Job Title: Application Developer Place of Performance: Ford Building, Downtown Washington, DC Work Schedule: Standard work week, Monday through Friday – 5 days on-site Clearance Requirements: U.S. Citizenship required. Must be able to obtain and maintain a Public Trust Tier 2 clearance (background check required). Key Responsibilities: Collaborate with cross-functional teams to design, develop, and maintain custom applications and backend services. Troubleshoot and resolve technical issues across application environments. Develop, deploy, and maintain RESTful APIs and web services using ASP.NET Core Web API. Automate operational tasks using scripting languages such as Bash, PowerShell, or Perl. Design and maintain SQL Server databases, including performance tuning, stored procedures, and functions. Leverage GitHub Enterprise for version control and CI/CD pipelines. Apply security best practices across application design and implementation. Support other technical tasks as assigned in support of operational goals. Required Skills & Qualifications: Strong experience in C#, ASP.NET MVC, ASP.NET Core, and Web API development. Solid understanding of RESTful services and modern API architecture. Demonstrated experience with relational databases and advanced SQL, including stored procedures and performance tuning. Familiarity with ASP.NET Core middleware, dependency injection, Razor views, and security features (auth/authz/data protection). Experience in jQuery DOM manipulation, AJAX methods, and plugin integration. Proficiency with responsive design principles and Bootstrap grid/component systems. Experience automating tasks and workflows using Bash, PowerShell, or Perl. Experience with GitHub Enterprise for source control and collaborative development. Preferred Education: Bachelor's degree in Computer Science, Information Technology, or a related technical field. Preferred Certifications: Certified Software Development Professional (CSDP) (ISC)² CSSLP – Certified Secure Software Lifecycle Professional GitHub Actions Certification AWS Certified Developer CompTIA Security+ Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status"). Seniority level
Seniority level Mid-Senior level Employment type
Employment type Contract Job function
Job function Information Technology Referrals increase your chances of interviewing at Marathon TS by 2x Inferred from the description for this job
Medical insurance Vision insurance 401(k) Get notified about new Application Developer jobs in
Washington, DC . Washington, DC $80,000.00-$150,000.00 9 months ago Washington, DC $80,000.00-$120,000.00 4 days ago Rockville, MD $55,000.00-$125,000.00 2 months ago Junior Full Stack Software Engineer (JAVA)
Washington, DC $120,000.00-$135,000.00 1 week ago Annapolis Junction, MD $12,000.00-$150,000.00 4 weeks ago Fort Meade, MD $130,000.00-$160,000.00 3 days ago Junior Full Stack Software Engineer (Part-Time/Internship)
Columbia, MD $92,000.00-$117,000.00 5 months ago Arlington, VA $130,000.00-$180,000.00 1 month ago Annapolis Junction, MD $110,000.00-$130,000.00 1 month ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr