Top Software Engineer Jobs in Washington DC,

Contract 6-month full‑stack role building and shipping web applications. Develop UIs in React, back-end services in Python/Ruby/Node, work with SQL, collaborate with engineers, data scientists and product managers, review/debug code, follow best practices, prototype solutions, and integrate AI/ML tools.

Provide technical leadership and hands-on Oracle EBS development/support for federal G-Invoicing buyer/seller solutions. Develop and maintain RICE-W elements, integrate with client systems, troubleshoot user issues, support testing and change control, and produce system documentation while identifying automation opportunities.

Lead a ~10-engineer team to build and modernize cloud-native SaaS for marinas. Stay hands-on with Node.js/React/TypeScript code, drive architecture and migrations, enforce testing/observability/CI-CD, run incident response, recruit and coach engineers, and implement AI-assisted development practices aligned to product goals.

Rebuild and implement a mission-critical B2B platform front end. Collaborate closely with UX, provide design feedback, and implement modern JavaScript-based user interfaces using current front-end frameworks and MVVM concepts.

Contract developer to build and maintain RPA solutions using BluePrism. Must have web development skills (HTML, CSS), experience with IDEs (Visual Studio, WebSphere), and pass background and drug screening. Immediate start for a 6+ month engagement in Washington, DC.

Senior Network Engineer responsible for large-scale enterprise routing and switching, administering multi-vendor network equipment (emphasis on Cisco), and providing subject-matter expertise. Requires strong communication skills and 15+ years of network administration and engineering experience. Cisco ISE certification is a plus.

Design, develop, configure and administer SharePoint 2010 farm solutions including sites, templates, workflows, web parts and custom code (C#/ASP.NET). Lead migrations from PlumTree, configure service applications (Search, Excel Services, PerformancePoint), use PowerShell for administration, and coordinate deployments across development, test and production environments.

Lead design and delivery of MongoDB/NoSQL solutions, architect databases, define business transformation rules, collaborate with stakeholders, tune performance, and travel extensively for client consulting engagements.

Design, develop, and maintain backend systems and RESTful APIs using Java and Node.js (NestJS). Build scalable, event-driven microservices with Kafka, work with SQL Server/MongoDB, deploy and monitor on AWS/GCP, and containerize/orchestrate with Docker, Kubernetes, or ECS. Collaborate across teams, refactor code for performance, and follow software best practices.

Lead technical authority for Power Platform development, owning end-to-end architecture, governance, security, scalability, and deployment. Provide technical direction to engineers, coordinate with program leadership and Coast Guard stakeholders, and ensure compliance with protection and enterprise architecture standards.