Top C# Jobs in Washington, DC

The SharePoint Consultant will design, develop, customize, and integrate SharePoint web portals, supporting applications development and workflows for clients.

Design, build, test, and deploy wargame-specific software and integrated GIS-based common operating picture tools. Create multi-user front-end interfaces, integrate and dynamically update databases, and support planning, execution, and post-game analysis for HQ USAF wargames.

Design, build, test, deploy, and support software for USAF wargaming; develop UI/UX (including map interfaces), integrate M&S and databases, support systems engineering, and employ multi-agent/LLM-based tools like MAGE during planning and execution phases.

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.

As a Software Engineer, you will design and build backend services for Relativity's generative AI platform, focusing on scalability and reliability in distributed systems.

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.

The Software Engineer II (CRM) will support the development and integration of Blackbaud CRM, collaborating with teams to ensure a secure and efficient system for managing constituent data.

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 Power Platform Developer will design user interfaces, develop applications using Power Apps, automate workflows, and create reports with Power BI while collaborating with stakeholders and conducting usability testing.

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.

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

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

Support DHS S&T C-UAS system integration, testing, and assessment. Lead engineering efforts to evaluate C-UAS effectiveness, develop test plans, review vendor documentation, refine requirements, and coordinate IPTs. Provide technical guidance, produce technical reports, and support project management and field engineering for mission execution.