Senior AI-Agent Engineer

Boston, MA, 02108

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Type: Full Time/Contract

Reference ID: 32125971

Date Posted: 04/12/2026



Apply now: AI Agent Systems Engineer, location is Remote. The start date is ASAP for this contract position.

Job Title: AI Agent Systems Engineer
Location-Type: Remote
Start Date Is: ASAP
Duration: Contract
Rate: $70-85/hr W2
Benefits: Eligible for Health, Dental, Vision, 401K
Not eligible for Visa sponsorship

Job Description:
Design and build production-grade multi-agent AI systems that integrate LLMs into scalable backend environments.

Day-to-Day Responsibilities:

  • Build and deploy multi-agent LLM systems in production environments
  • Architect and maintain backend services using Python (FastAPI, async frameworks)
  • Orchestrate tool calling, reasoning loops, and agent workflows
  • Integrate LLMs with real-world data systems and APIs
  • Debug and optimize agent reliability, hallucination, and performance issues
  • Collaborate with cross-functional teams to design scalable AI infrastructure
  • Deploy and manage systems on cloud platforms (AWS/Azure)

Requirements:

  • Must-Haves:
    • Strong Python backend engineering experience (FastAPI, async systems)
    • Proven experience building production multi-agent LLM systems
    • Hands-on experience with agent frameworks (e.g., LangGraph, Pydantic AI)
    • Experience orchestrating tool calls and managing reasoning loops
    • Experience integrating LLMs into real backend/data systems
    • Cloud deployment experience (AWS and/or Azure)
    • Experience debugging LLM reliability, hallucinations, and failures
  • Nice-to-Haves:
    • Experience building AI copilots, research assistants, or workflow automation tools
    • Background in AI infrastructure or platform engineering
    • Experience working in AI startups or internal AI platform teams
    • Familiarity with OpenAI ecosystem and modern LLM tooling

 

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