Top Senior C# Jobs in Washington, DC

Design, develop, test, and deploy secure, scalable applications and APIs for DOJ missions. Implement microservices, CI/CD, containerization, and cloud/IaC solutions; harden systems to RMF/STIG/FIPS/FedRAMP standards. Contribute to ATO packages, support production operations and incident response, and collaborate in Agile teams while producing tests and documentation.

Serve as a senior SME to architect, design, and modernize secure, scalable DOJ software systems. Lead cloud migrations, CI/CD/DevSecOps, compliance (RMF/STIG/FIPS/FedRAMP), ATO support, observability, and mentor engineering teams while ensuring operational continuity in secure environments.

The role involves leading SharePoint Online administration, governance strategy, and Microsoft Power Platform implementations while ensuring compliance and operational standards in a hybrid environment.

The Sr. Full Stack Developer will design solutions, lead junior developers, develop web applications, and ensure compliance with government standards.

Join a team to modernize legislative tools for Congress, requiring 5+ years of full-stack experience with various programming languages and DevOps tasks.

The Senior Software Engineer will design, develop, and maintain enterprise integration solutions, focusing on Azure services and microservices architecture, ensuring smooth communication across systems.

The Senior Software Engineer will design, develop, and maintain integration solutions, focusing on Azure services and microservices architecture, while mentoring junior developers and ensuring best practices in software development.

The role involves designing, developing, and testing applications using .NET technologies, building APIs, and implementing AI/ML solutions. Responsibilities include contributing to architectural decisions and mentoring team members.

The Lead Software Engineer will develop scalable services and APIs, collaborate with teams, and ensure high security and performance standards.

As a Senior Software Development Engineer, you will design, deliver, and operate distributed systems, utilizing strong technical skills and collaboration within a team.

The Sr. Automation Test Engineer will design, develop, and execute automated test scripts, ensuring software systems are reliable and compliant with federal standards, while collaborating in an Agile environment.

Lead the design and development of scalable software solutions for clinical technologies, mentoring engineers and driving technical direction while ensuring quality and performance.

The Senior Power Platform Engineer 2 leads technical engineering initiatives, conducts code reviews, writes documentation, and champions process improvements within an agile team while maintaining a strong technical understanding of applications.

The role involves developing solutions using Microsoft Power Platform, implementing projects, providing technical expertise, and delivering client training support.

The Senior Software Development Engineer will design, deliver, and maintain systems using modern technologies while collaborating with other teams and ensuring software quality.

Seeking a Senior IT Developer/Engineer with extensive experience in .NET technologies, Oracle databases and software development lifecycle, to lead design and coding efforts.

The Senior Software Engineer leads software development, manages projects, mentors developers, and collaborates on software design and testing using Agile methodologies.

The role involves full-stack development on financial technology solutions, focusing on user-facing applications, internal tools, and data pipelines, requiring collaboration across teams.

The Senior Applications Developer will design and implement software solutions, particularly using Angular, while ensuring quality and timely delivery of projects. Requires extensive software development experience and collaboration across teams.

Lead the development of web applications, guiding feature development from design to production, while mentoring a small Agile team and driving modernization initiatives.

Lead the design and development of Windows desktop applications, enforce best practices, ensure accessibility, and manage the full feature lifecycle from conception to maintenance.

The Senior Backend Software Engineer will design and maintain high-performance backend services, develop APIs, conduct code reviews, mentor engineers, and support production applications.

The Full Stack Developer will create, test, and deploy web applications, maintain server logic, conduct code reviews, and utilize Agile methodologies, focusing on web solutions for federal clients.

The Senior Power Apps Developer will implement Microsoft Power Platform solutions, interact with clients, and drive project phases while ensuring high-quality development standards.

The .Net Developer will build software applications, collaborate with team members, document technical specifications, and resolve software issues.