Top .NET Developer Jobs in Washington, DC

Lead a team in developing full-stack SaaS solutions, driving architecture, mentoring engineers, and collaborating with product management to enhance the web app and tech stack.

The Full Stack .NET Developer designs, builds, and maintains secure applications, optimizing for performance and reliability in a high-security environment.

The Senior .NET Developer will modernize applications, enhance legacy systems, lead Agile activities, and mentor junior developers while utilizing backend technologies.

The .Net Developer will design, build, test, and maintain scalable web applications using .NET technologies, and coordinate development tasks across teams.

As a Senior .NET Developer, you will design, develop, and maintain scalable backend services and APIs, implement architecture decisions, and communicate with clients.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

Responsible for designing, developing, testing, and maintaining secure Java applications, providing leadership and mentorship, and ensuring compliance with SDLC frameworks.

The Senior Software Engineer will design, develop, and manage application projects, focusing on third-party integration, code modification, and process improvement using advanced analytics and statistical modeling.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

Lead design and implementation of scalable .NET Core + Angular applications. Communicate with stakeholders, estimate work, drive agile delivery, ensure code quality, mentor engineers, and collaborate across product, QA, and design to deliver client-facing solutions.

As a Principal .NET Software Engineer at Versapay, you will modernize payments infrastructure, improve scalability, design distributed services, and take ownership of payment workflows while collaborating with various teams to enhance customer experience.

Develop and maintain web and desktop applications using .NET technologies. Requires strong programming skills, experience with databases, and project management.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.

Develop and maintain high-quality software solutions, analyze requirements, and collaborate with project leaders to ensure deadlines are met while adhering to coding standards.

The .Net Developer designs and implements software applications, analyzes system changes, collaborates with departments, and develops complex programs in compliance with standards.

The Senior SharePoint .Net Developer will design, develop, and maintain SharePoint environments, troubleshoot production issues, and lead application development teams.

The .NET Web Application Developer will create and maintain web and mobile applications, collaborating with teams to meet client requirements while keeping up with industry trends.

The job involves developing applications using .NET technologies including C#, ASP.NET, and MVC, along with web client frameworks.

Develop and maintain applications, manage infrastructure, implement system improvements, and interact with customers to ensure timely support ticket closures.

The .Net Developer will support business functions by developing, implementing, and maintaining applications, collaborating in a Scrum Team, and ensuring software meets specifications.

The Sr. .NET Developer will support business functions by developing, implementing, and maintaining application systems, focusing on BI tools and Web APIs.

Senior .NET Full Stack Developer responsible for designing, developing, testing, and enhancing enterprise .NET applications, integrating third‑party components, optimizing C#/ASP.NET code, automating operational workflows, and supporting large‑scale data processing and analytics. Works with lead architects across the SDLC and conducts architecture reviews, code reviews, and knowledge transfer.

Design, develop, and modernize enterprise web applications using .NET/ASP.NET/C#, SQL Server, and modern front-end technologies. Perform testing, troubleshooting, performance tuning, collaborate with cross-functional teams, and support secure, mission-critical government systems.

Lead a team to develop SaaS solutions while coding and mentoring engineers. Responsible for technical leadership and team management.