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Senior AI Product Engineer

Harnham

Role Title: Senior AI Product Engineer / Senior AI Product Engineer II

Location: Bay Area (Hybrid – minimum 3 days onsite)

The Opportunity

We’re partnering with a high-growth technology company building the next generation of intelligent, autonomous systems to transform how complex business workflows are executed.

This is a rare opportunity to join at a true inflection point. The organization is moving beyond assistive AI into fully agentic systems — software that can take action, complete workflows, and deliver outcomes end-to-end with minimal user intervention.

As a Senior AI Product Engineer, you’ll play a critical role in building these systems from the ground up. You’ll work on production-grade AI products that directly impact customers, owning everything from architecture through deployment and iteration.

If you’re excited by 0→1 challenges, high ownership, and building AI that actually works in the real world, this role is for you.

Why You Should Work Here

  • Real AI impact: Build and ship production, customer-facing agentic systems — not prototypes or internal tools
  • True ownership: Drive end-to-end development of AI products from concept through scale
  • 0→1 environment: Help define foundational systems at a pivotal stage of growth
  • High-trust culture: Work in a team that values autonomy, curiosity, and accountability
  • Small, high-impact teams: Your work directly shapes product direction and user experience
  • Meaningful technical challenges: Solve real-world problems in autonomy, orchestration, evaluation, and reliability
  • Strategic influence: Contribute to the architecture and direction of AI across the platform

The Role

This is a deeply technical, engineering-first role focused on building agentic AI systems within a live product environment .

You’ll operate within a small, focused team owning a specific domain, partnering closely with product while maintaining full engineering responsibility. This is not incremental feature work — it’s building the systems that will define how users interact with the product going forward.

Expect to spend the majority of your time coding and designing systems, with a strong emphasis on delivering scalable, production-ready solutions.

What You’ll Own

  • End-to-end development of agentic AI systems, from concept to production
  • System design and architecture for scalable, autonomous workflows
  • Prompt engineering, orchestration, and agent behavior design
  • Evaluation frameworks to measure performance, reliability, and accuracy
  • Continuous iteration loops: diagnosing issues and improving system outcomes
  • Shared platform components enabling consistent AI capabilities across products
  • Collaboration across teams to ensure seamless, unified user experiences

What We’re Looking For

Must-Haves:

  • Proven experience building and deploying production-level, customer-facing agentic AI systems
  • Deep understanding of the full agent lifecycle : prompting, orchestration, evaluation, debugging, and iteration
  • Strong software engineering foundation (backend or full-stack) with hands-on AI development
  • Proficiency in Python or TypeScript
  • Experience running structured evaluations and improving systems based on results
  • Clear ownership mindset — able to articulate what you built, why you built it, and how you improved it
  • Ability to think from a user perspective and design solutions accordingly

Experience Guidelines:

  • Senior AI Product Engineer: 4–6 years
  • Senior AI Product Engineer II: 6–8 years

Nice-to-Haves:

  • Experience with retrieval-augmented generation (RAG)
  • Familiarity with agent frameworks or orchestration tools (e.g., LangChain, Bedrock, or similar)
  • Background in fast-paced, high-growth environments

The Stack

Python · TypeScript · LLMs · Agent Frameworks · Retrieval Systems (RAG) · Cloud AI Platforms · Distributed Systems · Evaluation & Observability Tooling

Vacancy posted 8 hours ago
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