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Senior Full-Stack AI Engineer
Title : Senior Full-Stack AI Engineer – AI-Enabled Help Desk (GCP)
Location : Remote
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Responsibilities
- Own architecture and implementation of a RAG-based AI Help Desk backend :
- Ingestion + indexing of KB docs (markdown / HTML / PDF)
- Chat API with conversation history, role context, and tier classification
- Guardrails (prompt injection / adversarial prompt detection)
- Ticket creation + escalation logic & tier routing
- Replace existing front-end mock AI simulator with real backend APIs in the provided repo (pcte-ai-help-desk-demo).
- Implement analytics & monitoring endpoints to power the Help Desk dashboard and trend analysis (ticket topics, deflection rate, SLA metrics, guardrail activations, etc.).
- Design and implement secure, scalable deployment on GCP (Cloud Run, Cloud SQL / Firestore, Cloud Storage, etc.).
- Apply best practices :
- Clean architecture, separation of concerns
- API versioning and documentation (OpenAPI / Swagger)
- Automated tests (unit + at least one end-to-end)
- Observability (structured logging, basic tracing / metrics)
- Secure secrets management and least-privilege IAM
- Produce clear technical documentation (architecture, APIs, deployment instructions).
- Prepare a short demo walkthrough aligned with Army use-cases : Tier 0 self-service, guardrails, escalation, human takeover.
Required Skills
6+ years as a full-stack engineer building production web apps and APIs.Strong experience with :React + Vite + MUI (the existing UI stack)Node.js / TypeScript or Python for backend servicesDesigning RESTful APIs and integrating them with front endsHands-on experience with RAG / LLM-powered applications :Embeddings, vector search, grounding answers in KBHandling hallucinations with retrieval + guardrailsGCP experience with at least some of :Cloud Run or GKECloud SQL / Firestore / AlloyDB (or Postgres with pgvector)Cloud Storage / Cloud Build / Artifact RegistrySolid background in system design & scalability :Stateless servicesHorizontal scalingCaching & rate limitingStrong focus on security & compliance :Familiarity with concepts from NIST 800-53 / FedRAMP / CUI environments