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Senior/Staff Full Stack Software Engineer

Redcellpartners · Seattle, WA or McLean, VA (Preferred) or Remote (USA)

remotestaff$180,000–$240,000Posted Oct 30, 2026TypeScriptJavaScriptReactNext.jsPythonGoNode.jsKubernetes

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About this role

## Senior/Staff Full Stack Software Engineer ### About Us Red Cell Partners is an incubation firm building and investing in rapidly scalable technology-led companies across **healthcare, cyber, and national security**—developing tools and solutions to address the nation’s most pressing problems. ### About Trase Trase Systems (co-founded in 2023) is **AI, Uncomplicated**—an end-to-end platform for **deploying, managing, and optimizing AI in the enterprise**. Trase specializes in bridging the “last mile” of AI adoption to unlock AI’s full potential while driving efficiency and significant cost savings. Trase is at the forefront of **AI Agent** innovation and builds mission-critical agentic applications in complex industries such as **Healthcare, Oil & Gas, and National Security**. --- ### About the Role As a **Senior or Staff Full Stack Software Engineer** at Trase, you will build and support software for **Red Cell Federal (RCF)**, **Red Cell Partners (RCP)**, and RCP incubations/portfolio companies. You’ll join Trase’s dedicated **RCF/RCP support team**, delivering **front-end, backend, 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**. You’ll work directly with partner engineers, Product, TPM, DevOps/SRE, Platform Engineering, and GRC to deliver solutions across the frontend, backend, and integration layers. - **Senior**: independently own complex features and partner integrations end to end. - **Staff**: lead architecture across engagements, establish reusable engineering patterns, and mentor engineers. --- ### Why this Role is Needed RCF and RCP companies need software that works within their **applications, security controls, and deployment environments**—with intuitive UX, reliable APIs/agent workflows, clear audit trails, and dependable integrations. --- ### What You’ll Do - Build full-stack features for RCF/RCP partners (UI, admin tools, backend services, data models, and production integrations). - Partner with engineers and Product to clarify use cases, reproduce issues, define acceptance criteria, and deliver small increments (surface scope/dependencies/risks with TPM). - Integrate partner applications/agents with **Trase OS APIs/SDKs**, external APIs, **MCP tools**, and model-provider endpoints; provide examples and integration documentation. - Build reliable agent/workflow integrations (async execution, event streaming, state handling, retries/timeouts, error recovery) while preserving correctness and data integrity. - Create user interfaces for configuring agents, managing connections/policies, reviewing runs, and inspecting logs/traces/costs/audit history. - Implement authentication/authorization, role-based access, secrets integration, and audit events across frontend and backend; partner with GRC on security findings and engineering evidence. - Adapt configuration/dependencies for customer-managed cloud, private-network, and on-prem environments; collaborate with DevOps/SRE on packaging/deployment prerequisites and validation. - Own quality via code reviews, unit/integration/end-to-end tests, workflow evaluations, and regression coverage; verify behavior in target environments. - Diagnose and resolve defects across UI, APIs, SDK, data stores, and runtime services; add telemetry and support incident investigation. - Support releases/upgrades/maintenance, including appli

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