ALTA IT has a Long-Term Contract position open for a Sr .Net Developer. Washington DC 20006- Hybrid Work Schedule - 50/50 Per Federal Govt Sector U.S Citizenship is required Ability to pass Federal background check is required for Level 4 Public Trust Clearance Work Experience: * 10 years senior full stack .NET developer with proven experience developing back-end and front-end components and services using latest web technologies including .NET Core, C#, Angular, TypeScript, and WebAPI * Must have strong experience with latest or recent Angular framework * Design, code, test, debug, and document software solutions using appropriate processes, tools, frameworks, libraries, design patterns, industry best practices and standards * Hands-on experience with designing highly secured enterprise-level applications * Experience with Agile/Scrum methodologies using Azure DevOps/Git * Must be self-driven, creative problem solver, and eager to collaborate and solve complex problems both on their own and within project teams. * Bachelor's Degree in Computer Science, Software Engineering, or related field preferred Technical Skills: * .NET 5 , C#, RESTful WebAPI, Entity Framework/ORM * Latest or recent Angular Framework * Azure DevOps, GIT, CI/CD, and MS TFS * Design patterns (e.g., DI/IoC, singleton, factories, Redux/Observer etc.) * SQL Server, T-SQL, query optimization, data modeling techniques * Microservice architecture * UI/UX design principles * Strong troubleshooting and problem-solving skills System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, and MOUNTAIN, LTD., are leaders in delivering outsourced services and workforce solutions 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 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.