Senior Full Stack .Net Developer (onsite)

Senior Full Stack .Net Applications DeveloperWashington, DC – 100% OnsitePer Federal contract U.S. citizenship is requiredMust be able to obtain Public Trust clearanceW2 or C2CSeeking an experienced Full Stack Sr Application Developer to join our development team. They will build and maintain powerful web applications using our modern tech stack: .NET Core C#, Web API, Angular 16+, Entity Framework, and SQL Server. In this role, they will contribute across the entire application lifecycle - from database design to front-end implementation. They will work collaboratively with other developers, QA engineers, and business analysts in our fast-paced Agile environment to deliver software solutions.Technical Skills:Design and develop components across the full technology stackCreate and maintain database schemas, stored procedures, and efficient SQL queriesImplement secure, scalable RESTful APIs and service integrationsBuild responsive, intuitive user interfaces using AngularWrite clean, well-tested, maintainable codeTroubleshoot complex technical issues across the stackParticipate in code reviews, testing, and deployment activitiesCollaborate with cross-functional teams to meet project requirementsFollow CI/CD processes using Git, GitLab and related toolsRequired Skills & Experience:7+ years of experience with .NET C# development, including web applicationsStrong proficiency with our core stack:.NET 8 framework and ASP.NET Core Web APIEntity Framework CoreSQL ServerAngular 16 and laterExperience with Git-based version control systemsStrong problem-solving and analytical skillsSelf-motivated with ability to manage multiple projectsQuick learner adaptable to new technologiesExperience working in Agile development teamsPreferred Qualifications:Microservices architecture experienceContainerization knowledge (Docker, Kubernetes)Cloud platform implementation experienceUnit testing frameworks expertise#M1#LI-VH1Ref: #851-Rockville-S1System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.