Top Senior C# Jobs in Washington, DC

Design and develop solutions using Power Apps and Power Automate. Lead design sessions, implement data models, and manage solution lifecycles. Mentor junior developers and ensure adherence to governance best practices.

The Sailpoint Consultant will maintain and support SailPoint IIQ infrastructure, troubleshoot issues, develop scripts, and assist project teams with identity and access solutions.

Design, build, and scale the Substantiation Platform for validating and reconciling financial data. Provide architectural leadership and mentor engineers.

As a Senior Software Engineer, you'll design architecture, mentor engineers, and drive the adoption of AI practices to enhance development workflows and system reliability.

Design and implement runtime protocols, formats, and systems to capture, serialize, stream, and replay interactive 3D content across engines and AI models. Own engine subsystems from low-level C++ runtime to high-level C# APIs, optimize for performance, determinism, and low-latency streaming, and build interfaces for AI systems to inspect and invoke engine capabilities.

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.

Lead architecture and design for highly available, low-latency cloud services. Drive AI-first engineering practices, evaluate and integrate AI-assisted development tools, mentor engineers, perform code and architecture reviews, and collaborate with Product and Design to build scalable, observable, and automated systems.

The role involves developing cross-platform API abstractions for the Unity Editor using modern C++. Responsibilities include maintaining codebases and collaborating with worldwide teams.

Lead the design and development of Windows desktop applications, focusing on architecture, accessibility, and best practices, ensuring quality and performance across releases.

As a Senior Software Engineer in Test Automation, you'll design automation frameworks, develop CI/CD pipelines, and ensure the quality of VR training products.

The Senior ServiceNow Developer designs and builds solutions on the ServiceNow platform, working with stakeholders to enhance legal practice operations and improve service delivery through automation and integrations.

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 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.

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

Develop and maintain C# automation to audit, extract, parse, compare, and publish data across multiple datasets and SQL databases. Build automated audit reports, test automation in varied environments, collaborate with QA and development teams to identify and resolve issues, deploy solutions across servers and domains, document processes, and continually improve automation frameworks and practices.

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

Designs, develops, and deploys AI-driven, cloud-native applications on Azure. Builds RAG knowledge systems, AI agents, secure APIs, and orchestrated workflows using C#, .NET, Azure services, Docker, and CI/CD. Collaborates with stakeholders, ensures observability and security, supports production incidents, and provides documentation and knowledge transfer.

Design, build, test, integrate, secure, and maintain mission-focused software for classified national security and law enforcement programs. Develop APIs, databases, features, and scripts; participate in Agile delivery, release preparation, production support, troubleshooting, and documentation. Mentor team members and drive modernization, automation, and technical debt reduction.

Design, develop, test, maintain, and support secure software applications for classified missions. Support CI/CD, DevSecOps, source control, automated testing, release management, and production troubleshooting. Contribute to Agile ceremonies, documentation, and system support. Mentor team members and identify modernization, automation, and technical debt reduction opportunities to improve mission application reliability and security.