Deployed Engineer; Federal

About Us

At Lang Chain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production‑ready AI agents that teams can rely on. We began as widely adopted open‑source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.

Today,
Lang Chain, Lang Graph, Lang Smith, and Agent Builder are used by teams shipping real AI products across startups and large enterprises. Millions of developers trust Lang Chain to power AI teams at companies like Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500
.

With $125M raised at Series B from IVP, Sequoia, Benchmark, Capital

G, and Sapphire Ventures
, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. Lang Chain is a place where your contributions can shape how this technology shows up in the real world.

The Lang Chain Deployed Engineering - Federal team works directly with U.S. Government customers — including the Department of Defense (DoD), Civilian Agencies, and the Intelligence Community (IC) — who are building and operating AI agents in mission‑critical environments.

This is a hands‑on, highly technical team that partners closely with government engineers, technical program managers, and system integrators across the full lifecycle — from pre‑award technical shaping and evaluations to post‑deployment advisory work in secure environments. The focus is on achieving the technical win, architecting secure and compliant agent systems, and enabling agencies to operate AI agents reliably at scale using the Lang Chain suite.

Deployed Engineers sit at the intersection of engineering, product, security, and go‑to‑market. You will shape how Lang Chain is adopted across classified and unclassified environments, ensuring alignment with federal compliance requirements while feeding mission‑driven insights back into the platform.

As a Deployed Engineer, you’ll work on some of the hardest problems in applied AI — not demos or experimental research, but production systems supporting real‑world missions.

You’ll help defense, civilian, and intelligence customers design, deploy, and operate AI agents in secure, regulated, and high‑stakes environments. The feedback loop is fast, the mission impact is tangible, and your work directly influences how AI agents are deployed across the federal landscape.

You will operate in environments that demand security, reliability, compliance (FedRAMP, IL levels, etc.), and operational rigor.

• Co‑architect and co‑build production AI agents with federal engineering teams and system integrators
• Own the technical win in federal pre‑sales engagements by designing secure POCs, supporting RFI/RFP technical responses, and guiding technical evaluations
• Design architectures that meet federal security and compliance requirements (FedRAMP, DoD IL2–IL6, NIST, etc.)
• Help agencies deploy and operate agent‑based applications such as mission support copilots, intelligence analysis agents, research automation systems, and multi‑step operational workflows
• Advise customers post‑award on architecture, scalability, observability, evaluation, and long‑term roadmap decisions
• Deliver technical demos, workshops, and enablement sessions tailored to government developer and operator audiences
• Partner with security teams to navigate ATO processes and accreditation pathways
• Surface field feedback from federal use cases and contribute reusable patterns, secure deployment guides, and example code that scale across agencies
• Occasionally contribute code upstream when it meaningfully improves federal customer outcomes

• 3+ years in a relevant technical role (software engineering, customer engineering, solutions engineering, product engineering), ideally supporting federal or regulated customers
• Experience working with DoD, Civilian Agencies, Intelligence Community, or federal system integrators
• Stron…