Mainix

Bellevue, Washington, US · RemoteFeb 2026 – Present

Senior Software Engineer

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Mainix is an AI automation studio building production-grade agentic systems and LLM-powered platforms for businesses. We help mid-market and enterprise customers turn complex internal workflows into reliable software using modern AI patterns, agent orchestration with LangGraph, retrieval-augmented generation over private knowledge bases, and tool-using agents deployed on AWS.

As a lead engineer, I work across the full lifecycle: scoping problems with customers, designing the architecture, implementing the backend and AI layers, and standing up the practices that keep production AI predictable, prompt versioning, evaluations, observability, and cost tracking.

  • Architected and built agentic AI systems on LangGraph with RAG pipelines, vector retrieval, and tool-using agents.
  • Implemented Python backends and FastAPI services connecting LLMs (OpenAI, AWS Bedrock), pgvector, and event-driven workflows on AWS.
  • Owned end-to-end delivery: customer scoping, architecture, implementation, deployment, and on-call style operation.
  • Python
  • LangGraph
  • LangChain
  • RAG
  • LLM
  • AWS
  • AWS Bedrock
  • OpenAI
  • PostgreSQL
  • pgvector
  • FastAPI
  • TypeScript