Top Remote C# Jobs in Washington, DC

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

The Lead Platform Developer oversees architecture, scalability, and reliability, mentoring engineers and building platform capabilities while ensuring security and compliance in a fast-paced environment.

Lead a team to develop and deploy machine learning and AI solutions for transportation logistics, optimizing freight booking and reducing costs.

The Senior Software Development Engineer will design and implement scalable web services, collaborate across teams, and ensure software simplicity while participating in the full software development lifecycle.

The Principal Engineer will shape the technical strategy for messaging infrastructure, influence architectural decisions across teams, and solve complex technical problems. Responsibilities include mentoring engineers, driving coherence across teams, and leading initiatives to ensure Weave's competitiveness in messaging solutions.

The Sr Software Engineer will lead IoT cloud software development, design data pipelines, manage cloud infrastructure, and ensure platform compliance while mentoring the development team.

A Senior Demo Engineer creates and improves demos of OneStream software, collaborates with teams, and provides technical support and presentations.

The Technical Engineering Manager coordinates cross-functional teams to ensure software delivery, mentors engineers, drives technical discussions, manages KPIs, oversees incidents, and promotes continuous improvement in a collaborative environment.

Responsible for leading and mentoring software engineering teams, driving technical discussions, ensuring high-quality software delivery, and fostering a collaborative environment while improving operational excellence.

Lead technical aspects of an engineering team, design and revamp systems, improve efficiency, mentor engineers, and contribute to product strategy.

As a Principal Presales Engineer, you will lead technical pre-sales activities, engage customers, propose solutions, mentor peers, and establish trust through effective communication.

Develop and maintain web and mobile features using React/React Native; build scalable backend services in C#, TypeScript, and Ruby on Rails; work with AWS (ECS/EKS/Lambda), Terraform, event-driven systems (Debezium, Kafka, SNS/NServiceBus), and Postgres/Salesforce integration. Collaborate with product and design, follow CI/CD and testing best practices, and contribute to system design and continuous improvement.

The Software Developer will design, build, and maintain custom software, collaborate with teams, and mentor junior developers, focusing on creating high-quality applications.

The Senior Technical Implementation Engineer leads integration projects using banking APIs, resolves complex technical issues, and mentors junior engineers while ensuring customer satisfaction through effective solutions.

As a Software Engineer, you'll develop and maintain APIs and backend services for automation in healthcare processes, ensuring reliability and scalability.

As an Enterprise Architect, you will lead architectural efforts across systems, promote data literacy, and collaborate with teams to modernize and implement scalable enterprise systems.

As a Senior Full Stack Software Engineer, you'll design and develop end-to-end web applications, handle data architecture, ensure performance, and collaborate across teams to deliver effective technical solutions.

The role involves designing and building scalable web applications, focusing on frontend and backend development, database management, and performance optimization.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

Volunteer Principal Full Stack Engineer to lead and contribute across frontend and backend (React/React Native, Node.js, MongoDB). Own feature development, mentor engineers, collaborate with product/design, ship scalable code, and support CI processes. Must commit 4+ hours weekly and attend a weekly standup; first task includes launching a fundraising campaign.

Volunteer senior developer to design, build, and maintain a cross-platform medical scheduling app (web, iOS, Android). Participate across the full development lifecycle: design, coding, testing, CI, deployments, code reviews, production support, incident management, and platform architecture. Attend weekly standups and commit at least four hours per week.

Develop, enhance, and maintain enterprise web-based GIS applications, dashboards, APIs, and geospatial services. Integrate GIS with enterprise systems, support ArcGIS Enterprise, assist modernization to cloud, perform testing, troubleshooting, deployment, documentation, and user support within federal environments.

Design, build, and maintain scalable backend services and gRPC APIs in Rust. Architect modular systems using Clean Architecture, CQRS, and event sourcing; implement actor-based concurrency, data access for relational/time-series/graph DBs, observability with Tracing/OpenTelemetry, and end-to-end testing. Collaborate in Agile teams, perform code reviews, communicate with clients, and operate services on Kubernetes when needed.

The Lead Engineer will guide software engineering activities, focusing on designing, developing, and testing Configuration Tools while mentoring junior engineers and collaborating with systems engineers and other teams.

Lead design, development, and verification of avionics tools; provide technical leadership, mentor teams, drive RCCA and Lean methods, collaborate cross-functionally, and develop/maintain software (primarily C# and Python) for commercial and military programs.