Senior Full Stack Engineer, Gen AI
Core
Design, build, and extend a production LLM agent system integrated into Optibus' product suite, focusing on agent design, tool implementation, RAG quality, and cloud infrastructure. (via careerplan.io/jobs/D1-00C-06-07C-senior-full-stack-engineer-gen-ai-at-optibus)
Role type
Senior Full Stack Engineer (Gen AI)
Builds
Production LLM agent platform with tool use, retrieval, and host application integrations
Domain
Public transportation technology + Generative AI
Deliverable
production ML models
Required skills
TypeScript, React/Angular/Vue, Node.js, LLM agent design, RAG pipelines, Vector databases, AWS, Docker, CI/CD
Preferred skills
Python, MCP (Model Context Protocol), LLM observability, Module Federation, API/SDK design, Infrastructure as Code, Multi-tenant architecture
Technologies
LangGraph, LangChain, Bedrock, LangSmith, AWS CDK, Pulumi
Responsibilities
Design and evolve LLM agents with tool use and human-in-the-loop flows; Implement tools and integrations via internal APIs and MCP servers; Own retrieval quality including ingestion, embeddings, and reranking; Define host integration contracts and shared remote modules; Drive evaluation-led development with CI eval gates; Operate platform deployments and observability; Establish engineering practices for AI-specific work
Seniority
Senior, hands-on IC
