Senior/Staff Full-Stack Engineer — Federal AI Platform

Royper Royco LLC; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Red Cell Partners’ Trase unit seeks a Senior or Staff Full Stack Software Engineer to build and support software for Red Cell Federal, Red Cell Partners, and incubations. You will join the RCF/RCP support team, delivering UI, backend services, APIs, and integrations with a strong focus on federal, government, and national security programs.

This is a hands-on role with ownership from requirements through production support.

Responsibilities

• Build full-stack features for RCF/RCP partners, from responsive UI interfaces and administrative tools to backend services, data models, and production integrations.
• Work directly with partner engineers and Product to clarify use cases, reproduce issues, define acceptance criteria, and deliver small increments.
• Surface scope, dependencies, and risks with the TPM before committing dates.
• Integrate partner applications and agents with Trase OS APIs and SDKs, external APIs, MCP tools, and model-provider endpoints.
• Provide working examples and clear integration documentation.
• Build reliable agent and workflow integrations, including asynchronous execution, event streaming, state handling, retries, timeouts, and error recovery.
• Preserve correctness and data integrity across failures.
• Create usable interfaces for configuring agents, managing connections and policies, reviewing runs, and inspecting logs, traces, costs, and audit history.
• Make failures and recovery actions understandable to users.
• Implement authentication, authorization, role-based access, secrets integration, and audit events across frontend and backend services.
• Partner with Governance, Risk and Compliance on application security findings and engineering evidence for applicable federal requirements.
• Adapt application configuration and dependencies for customer-managed cloud, private-network, and on-premises environments.
• Work with DevOps/SRE on packaging, deployment prerequisites, and end-to-end validation.
• Own quality through code reviews, unit and integration tests, end-to-end tests, representative workflow evaluations, and regression coverage.
• Verify application behavior in the target environment before partner handoff.
• Diagnose and resolve partner-reported defects across the UI, APIs, SDK, data stores, and runtime services.
• Add useful telemetry, support incident investigation, and validate fixes with partners.
• Support releases, upgrades, and ongoing application maintenance, including federal deployments such as Second Front where applicable.
• Review and integrate partner contributions, maintain API/SDK compatibility, and coordinate security fixes with platform and DevOps/SRE owners.
• Document architecture, setup, known limitations, and troubleshooting steps; provide partner walkthroughs and knowledge transfer.
• Share reusable solutions with the platform team and mentor other engineers.

Job description

Red Cell Partners’ Trase unit seeks a Senior or Staff Full Stack Software Engineer to build and support software for Red Cell Federal, Red Cell Partners, and incubations. You will join the RCF/RCP support team, delivering UI, backend services, APIs, and integrations with a strong focus on federal, government, and national security programs.

This is a hands-on role with ownership from requirements through production support.