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FDE tech stack

A practical stack map for Forward Deployed Engineers — biased toward what shows up in 2026 enterprise AI JDs.

Languages & services

  • Python (FastAPI, data tooling) and TypeScript/Node are the common pair
  • SQL everywhere; Spark/PySpark at data-platform companies
  • Java still appears in Palantir-like environments

AI delivery

  • RAG: chunking, hybrid retrieval, re-ranking, citations
  • Agents: tool calling, planning loops, human-in-the-loop
  • Evals & observability for quality, cost, and latency
  • Emerging integration standards (e.g. MCP-style tool wiring)

Enterprise glue

  • SSO/SAML/OIDC, secrets, least-privilege access
  • Webhooks, queues, retries, idempotency
  • VPC / private link / air-gapped deployment patterns

How to use this page

Do not learn everything. Cross this list with the skills matrix and your target company hubs under Salaries. Deeper playbooks ship under /tech in Phase 2.