Senior Full Stack Engineer

The candidate will own the human-in-the-loop surface of the GenAI IDP platform end to end: the React/Next.js UI and the backing API/BFF services that feed it. This is a streaming, stateful window into live agent execution supporting DCSA document processing workflows - not generic web development. The engineer owns the vertical slice from React component through the SSE event pipeline to the backend route that serves it - durable chat state, notification architecture, tool-call and artifact visualization, document classification results rendering, and trace exploration.

• 3+ years of non-internship professional software development experience
• Experience building production web applications with TypeScript and a modern React framework (React/Next.js)
• Experience building and operating backend services or APIs (e.g., FastAPI, Node) that a frontend consumes
• Experience with real-time or streaming interfaces (Server-Sent Events, WebSockets, or equivalent), including handling reconnection and out-of-order events
• Experience with automated testing at the unit and end-to-end level (e.g., jest, Playwright) as part of the definition of done
• Experience diagnosing defects across the stack - from a client-side symptom to the backend route or payload that caused it - using logs and traces as evidence, * Experience building interfaces for AI/agentic or other long-running, streaming systems (token-by-token output, tool-call visualization, document classification result rendering, run/trace inspection)
• Experience with GenAI/LLM integration: prompt engineering workflows, model evaluation dashboards, fine-tuning pipeline UIs
• Experience deploying applications in AWS GovCloud or classified (IL5/IL6) environments
• Experience integrating with DoD identity providers and CAC/PIV authentication
• Experience with client and server state management and optimistic-update patterns
• Proficiency using AI coding assistants as a daily driver, with the judgment to verify their output against tests and traces before merging
• Experience with distributed tracing (OpenTelemetry) from the application side
• Experience with AWS services: Amazon Bedrock, S3, Lambda, Step Functions, CDK
• Bachelor’s degree in Computer Science or equivalent practical experience

From $140,000 a year - Full-time, Pulled from the full job description

• Referral program
• Tuition reimbursement
• 401(k)
• Health insurance
• Retirement plan
• 401(k) matching
• Paid time off, * 401(k)
• 401(k) matching
• Dental insurance
• Flexible schedule
• Health insurance
• Life insurance
• Paid time off
• Referral program
• Retirement plan
• Tuition reimbursement
• Vision insurance

License/Certification:

• Security + or other Cyber/Security Cert? (Preferred)