Top C# Jobs in Washington, DC

Develop Temporal workflows and Go services to automate cloud operations, build reliable SRE platforms, participate in on-call/incident response, debug distributed systems, and enable self-service through documentation and CI/CD automation.

Develop and maintain C# and ASP.NET applications while migrating from .NET Framework 4.8 to modern .NET versions and transitioning databases from SQL Anywhere to SQL Server. Build REST APIs, optimize queries and stored procedures, troubleshoot application and database issues, support CI/CD deployments, and collaborate with analysts, QA, and stakeholders in an Agile environment.

Develop and architect enterprise Power Platform solutions using Power Apps, Power Automate, Dataverse, and Power BI. Responsibilities include data modeling, integrations, PCF development, Azure connectivity, governance, ALM, DevOps deployment, security, troubleshooting, documentation, stakeholder workshops, and mentoring. The role also involves designing user interfaces, conducting usability research, and creating dashboards. Work is onsite at a government facility in Washington, D.C.

Leads hands-on development of full-stack applications using .NET, React, Next.js, and Azure. Owns architecture, coding, code reviews, testing, security, reliability, observability, production support, and cloud deployment. Integrates AI and GenAI capabilities such as LLM features, RAG, semantic search, and agentic workflows. Mentors engineers, establishes technical standards, collaborates with stakeholders, supports hiring, and helps deliver scalable, secure software.

Leads technical initiatives and designs, builds, operates, and improves scalable distributed systems. Collaborates across organizations, drives maintainability and performance, evaluates emerging technologies, delivers iterative releases, and mentors engineers. Requires polyglot full-stack development, strong SQL and distributed systems expertise, cloud experience, communication skills, and quarterly or as-needed travel. Preferred experience includes event-driven architectures, AI-assisted development, Kafka, APIs, containers, infrastructure as code, monitoring, CI/CD, and agile methodologies.

Develop and support applications using Oracle, SQL Server, MySQL, PostgreSQL, Node.js, TypeScript, and emerging cloud and AI technologies. Build database procedures, functions, packages, web service integrations, and application-to-database solutions. Collaborate with stakeholders and technical teams, incorporate user feedback, support multiple initiatives, and solve complex application development problems. The hybrid role supports DIA in Washington, D.C., requires TS/SCI clearance and willingness to take a CI polygraph.

Develop highly available, scalable cloud-based integration services for Axon’s real-time operations platform. Drive cross-team technical architecture, integration frameworks, partner onboarding, technical roadmaps, and reusable platform components. Collaborate with engineering, product, design, professional services, and external partners; lead architecture reviews, mentor engineers, improve engineering processes, and leverage AI to enhance customer experiences.

Develop, test, deploy, and maintain full-stack web applications using .NET and React. Design scalable front-end and back-end solutions, troubleshoot technical issues, participate in code reviews, and follow software development best practices. Collaborate with designers, product managers, and developers throughout the software lifecycle. The role requires onsite work in Washington, DC and an active Top Secret clearance.

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Responsible for architecting solutions that align with CMS needs, managing complex programs, and mentoring future technologists while adhering to federal standards.

The Jr. SQL Developer will work on MS SQL Server, performance tuning, software design, development, testing, and debugging. Participate in the full project lifecycle.

The Jr. SQL Developer will work with MS SQL SERVER, focusing on database performance tuning, software design, and project lifecycle participation under the guidance of a Project Manager.

Performs ETL, backend database, data warehouse, and data pipeline testing. Develops Python- and SQL-based automation frameworks, validates data transformations and quality across AWS and Databricks platforms, and executes integration, regression, performance, and reconciliation testing. Creates test plans, analyzes defects, supports Agile Scrum teams, and collaborates with developers, data engineers, and business analysts to deliver reliable enterprise data solutions.

Design, implement, deploy, and operate large-scale distributed backend systems and Azure infrastructure for AI-driven insights. Apply generative AI/ML, build IaC and CI/CD pipelines, support live-site operations, and execute onboarding and operational tasks for GCC‑High/DoD environments while ensuring security, observability, and cross-team collaboration.

Develop and implement a modern web information portal using front-end technologies, ensuring compliance with UX and 508 standards. Collaborate with stakeholders and integrate systems while managing project timelines and quality.

Develop and maintain applications, manage infrastructure, implement system improvements, and interact with customers to ensure timely support ticket closures.

The .Net Developer will build software applications, collaborate with team members, document technical specifications, and resolve software issues.

The .Net Developer will design, develop, and maintain software applications, lead initiatives, document requirements, and resolve software issues.

The Sr. .NET Developer will support business functions by developing, implementing, and maintaining application systems, focusing on BI tools and Web APIs.

The .Net Developer will support business functions by developing, implementing, and maintaining applications, collaborating in a Scrum Team, and ensuring software meets specifications.

The Oracle PL/SQL Developer will provide infrastructure and back-end support, perform application testing and installation, and support user community by resolving database issues and performing UNIX administration functions.

Leads cross-functional platform engineering initiatives supporting Unity on Android devices. Designs architectures, optimizes runtime performance, establishes benchmarks, resolves complex system-level issues, mentors engineers, contributes to platform roadmaps, documents technical decisions, and participates in design reviews. The role requires advanced C++, C#, and Android systems programming expertise, strong knowledge of computer architecture, multithreading, debugging, profiling, and large-scale platform or runtime systems.

Develop, test, debug, enhance, and document software applications. Integrate designs, specifications, schedules, and user needs into product capabilities; resolve hardware and software interface issues; research emerging technologies; troubleshoot application problems; support customers; and prepare technical reports. The role is onsite in Washington, DC and requires an active Top Secret clearance with SCI eligibility.

Design, develop, test, and maintain scalable Java applications for government and enterprise systems. Build and integrate APIs, support CI/CD deployments, ensure security/compliance, contribute to architecture and documentation, troubleshoot production issues, and collaborate with cross-functional teams.

The SharePoint Developer will design systems, develop custom PowerApps, collaborate with government staff, and improve existing applications while ensuring security and quality in software development.