Top Remote C# Jobs in Washington, DC

Configure and implement Alkami digital banking products and third-party integrations, troubleshoot technical issues, perform testing and validation, document configurations, coordinate with project managers and vendors, and support clients through implementation and post-go-live stabilization.

Design, build, test, and maintain enterprise applications and integrations for VA healthcare modernization. Work in Agile teams to develop APIs, microservices, CI/CD pipelines, and DevSecOps practices, support legacy VistA/MUMPS systems, troubleshoot performance and integration issues, and ensure federal cybersecurity and compliance.

Design, build, and evolve scalable backend systems for WWE Champions. Support live-ops, incident management, reliability improvements, and pre/post-release backend support. Collaborate with client (Unity) engineers, drive technical roadmap, mentor cross-functional teams, and optimize performance and content pipelines for live mobile games.

Lead a software development team to design, build, test, and deliver product features. Provide hands-on technical leadership, oversee architecture, code quality, releases, and production support. Mentor direct reports, collaborate with product and support teams, and evaluate new technologies and prototypes to improve delivery and product capability.

Design, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.

Debug and resolve complex hardware/software issues for manufacturing test stations. Lead commissioning and release-to-manufacturing of opto-electrical test stations, improve test uptime, provide documentation and support to contract manufacturers and vendors, coordinate equipment RFQs/RMAs, and use AI tools for data analysis.

Lead design, architecture, and delivery of enterprise web, mobile, backend and cloud solutions. Provide technical and people leadership across Agile teams, enforce engineering best practices (CI/CD, DevSecOps, observability), mentor engineers, manage delivery risks, and drive platform modernization and production readiness.

Lead architectural strategy and modernization for large-scale distributed systems. Design modular, extensible services, migrate legacy monoliths to microservices, optimize AWS infrastructure and costs, document and visualize systems, facilitate cross-functional design, mentor engineering teams, and scout emerging technologies.

Lead design, build, and scale GridUnity's cloud SaaS platform. Own end-to-end features, mentor engineers, drive architecture, improve scalability, reliability, security, and data practices while collaborating with product teams.

Design and develop low-latency, high-throughput distributed database kernels for massively parallel analytics. Responsibilities include architecture, modern C++ development, MPI/OpenMP query execution, SIMD and hardware optimization, distributed networking, database internals, in-database machine learning, vector indexing, performance tuning, code reviews, mentoring, and resolving scalability issues across large-scale clustered systems.

Design and develop massively parallel distributed database kernels for real-time analytics at terabyte and petabyte scale. Responsibilities include low-level C++ development, MPP query execution, SIMD and hardware optimization, distributed communication using MPI and RDMA technologies, database internals, vector indexing, in-database machine learning, performance tuning, architecture reviews, mentoring, and resolving scalability issues.

Design and develop low-latency, high-throughput distributed database kernels for massively parallel analytics. Responsibilities include query execution, columnar storage, transaction management, cluster coordination, hardware-aware optimization, SIMD vectorization, RDMA networking, in-database machine learning, vector indexing, performance tuning, architecture reviews, code reviews, mentoring, and resolving scalability issues.

Own and deliver server-side features end-to-end for a cloud-hosted accounting SaaS: design data models and APIs, improve performance and reliability, mentor engineers, ensure observability and on-call readiness, collaborate with product and clients, and apply AI-assisted development safely to accelerate delivery.

Design and develop scalable software solutions, lead engineering workstreams, ensure code quality, mentor junior developers, and collaborate on technical strategies to enhance digital experiences for BECU members.

Perform technical code review and analysis to determine originality and function, prepare memos and expert reports, rebut other experts, communicate with counsel and clients, prepare testifying experts, manage multiple engagements, and supervise junior staff.

Design, build, and maintain automated migration workflows to onboard dental practices. Implement C#, .NET, and PowerShell scripts, manage ETL processes and SQL data transformations, troubleshoot live routines, leverage AI tools to speed development, and produce technical documentation to ensure secure, reliable migrations.

The Integration Developer supports and maintains Rhapsody and .NET applications, automates workflows, and modernizes legacy systems for public health data exchange.

Design and implement gameplay and technical systems, rapidly prototype features (camera, animation, controls, AI), improve level-editor and tooling, collaborate across design and engineering, support multiplayer and live-game operations, and enable the design team with polished interactions and pipelines.

Lead development and maintain Microsoft Dynamics 365 CE Sales solutions, build forms, workflows, plug-ins, integrations, and reusable code. Drive DevOps practices, perform code reviews, lead design/POC efforts, mentor engineers, collaborate with product and QA, support deployments and production troubleshooting.

Design and evaluate performance engineering tasks for AI training/evaluation. Optimize runtime, compilers, memory, CPU/GPU and concurrency. Produce documented solutions, evaluate AI-generated code, and build evaluation frameworks and scoring rubrics while collaborating with researchers and SMEs.

Build and ship first-party risk management features end-to-end: risk registers, risk scoring, control testing, monitoring, and framework integrations. Implement backend services/APIs and React/TypeScript front-end components, collaborate with product/design/QA, and ensure data integrity and test coverage in a compliance-focused SaaS product.

Lead and manage engineers to design, build, and maintain production backend game services (sessions, matchmaking, progression). Diagnose incidents, participate in on-call, collaborate with cross-discipline teams, and produce clear technical documentation.

Join the Consumer Technology team to develop, maintain, and troubleshoot applications and test tools. Perform routine automation, white-box testing, code reviews, monitor automated processes, estimate tasks, communicate with product owners and users, and recommend improvements. Assist in training others and follow departmental methodologies.

Improve and maintain automated build systems for a game team. Develop build software (Unreal Engine 5, primarily C#), monitor CI/CD health, provision on‑prem and cloud build resources, troubleshoot build failures, enable internal workflows, and collaborate with release and test teams to publish builds and test results.

Lead the design, development, and deployment of digital identity solutions for state governments, ensuring effective technology implementation and customer success.