Top Remote C# Jobs in Washington, DC

Design, build, and deploy scalable cloud-based solutions; translate product requirements into technical architecture; contribute to roadmaps, code, and reviews; shape engineering practices and culture in a fast-paced startup.

Lead UI-focused full-stack development: build high-performance Angular components, implement responsive accessible interfaces from design mockups, optimize front-end performance, influence component libraries and front-end architecture, and contribute to back-end .NET Core APIs and database integration.

Lead development and enhancement of mathematical optimization algorithms and APIs (LP, MIP, QP, etc.). Implement, benchmark, and document new solver features, support product releases, present at conferences, and collaborate with global teams to improve performance and numerical robustness.

As a Senior Software Engineer, you'll design modern scalable platforms, focusing on front-end and back-end development using VueJS/ReactJS and C# microservices, while integrating with AWS and modern data warehouses.

Lead full-stack development and integrations between ERP, CRM, and e-commerce systems. Build and customize Salesforce Commerce Cloud solutions, troubleshoot production issues, mentor developers, coordinate a small team, ensure secure, scalable code, and work cross-functionally to deliver high-quality e-commerce experiences.

Lead full-stack developer responsible for designing, building, and maintaining Salesforce Commerce Cloud e-commerce solutions and integrations (ERP/CRM). Mentor junior developers, provide technical leadership, troubleshoot issues, and deliver scalable, secure code while collaborating with cross-functional teams.

Work with senior engineers to design, build, and deploy full-stack solutions for public sector clients, focusing on secure identity solutions.

Configure and implement SaaS/COTS platforms, design custom forms/templates/workflows, write and troubleshoot code (JavaScript and other languages), integrate third-party systems and APIs, document use cases and technical specs, and support project planning and testing for system modernization.

The Principal Software Engineer at Motion will make key technical decisions, implement large software projects, take ownership of projects, and collaborate with other engineers to enhance product value.

Maintain and enhance the ChangePoint system, implement end-to-end solutions, and resolve system defects. Produce technical design and testing deliverables, support data changes in the backend, and provide off-hours support as needed. Ensure architecture and development follow best practices and collaborate with team members and end users.

The SDET at Alkami ensures high-quality software delivery by maintaining automated test suites, enhancing test frameworks, participating in Agile ceremonies, and collaborating within scrum teams.

The Technical Implementation Engineer assists in configuring digital banking solutions, collaborating with teams, managing client setups, and troubleshooting issues.

Develop, configure, and customize Dynamics 365 CRM solutions using .NET, Web APIs (OData v4), and SQL Server. Collaborate with users to gather requirements, write documentation, test and support SaaS-hosted web applications, troubleshoot issues, and identify opportunities for scalability and improvement.

As a Software Development Manager, you will lead a team focused on enhancing our SaaS platform, managing development of secure access services, fostering an agile culture, and mentoring engineers.

Lead the development of user-facing features, collaborate with team members, and mentor others while ensuring a high quality of software design and implementation.

Lead the technical direction of an engineering team, making major technical decisions, mentoring engineers, and improving technical quality through reviews and effective communication.

The role involves designing CLI and backend services, maintaining code quality, collaborating on technical issues, and writing documentation.

Design, develop, test, and deploy C#/.NET software; document APIs; ensure quality via CI/CD and verification plans; collaborate with teams and provide technical guidance.

Design, build, and scale features and services for global ticketing platforms. Implement APIs, optimize performance for high traffic, lead architecture, mentor teams, and ensure high-quality, well-tested code.

Serve as the primary technical leader for new logo prospects in the Eastern region. Assess fit for Temporal, demo technical benefits, prototype solutions, advise on architecture and production operations, partner with Sales to scope opportunities, and drive adoption and expansion with customer engineering teams.

Develop and integrate game features using Unity, C#, and various APIs while ensuring game performance and quality standards are met.

Lead and scale an SDET/automation team to design and deploy AI-augmented test architectures. Drive adoption of AI-driven and agentic automation, expand automated coverage across UI/API/integration/backend, improve release reliability, and remain hands-on to guide architecture, validate approaches, and measure quality improvements.

As a Gameplay Engineer, you'll design and refine networked gameplay systems, iterate on features, and collaborate with designers and back-end engineers.

Define and own integration and software architecture connecting operational systems and product platforms. Architect cloud-native, microservices-based integrations (provisioning, billing, telemetry), implement solutions primarily in Python on AWS, guide testing and observability, decompose work into Jira, and provide technical leadership and mentorship across backend, integration, and front-end teams.

Work on development tasks for video delivery systems including ingest, DRM, adaptive bitrate formats, transcoding, and content delivery. Participate in development discussions, complete assigned tasks, and collaborate with QA, cloud, and front-end teams to deliver streaming video features.