Software Engineer, Agentic Products

Flux • San Francisco, CA

40d • Remote

About The Position

Flux is building the world’s first AI Hardware Engineer, software that can design real, manufacturable electronics from a prompt. As a Senior Product Engineer (Agentic Development), you’ll report to Jeff Wilde (Head of Engineering) and work within the Product team. Your mission: build the brains of the system, agentic workflows, reasoning graphs, and integrations that help novice users move from idea to manufacturable hardware and seasoned electrical engineers learn from the hard earned battle scars from failed production runs of the past. This role combines deep web engineering with AI systems design. You’ll work with Typescript and LangGraph across the Flux web app and backend platform, embedding intelligence directly into the design environment.

Requirements

• 5+ years of software-engineering experience; 1+ year developing generative-AI or agentic systems.
• Strong command of TypeScript, React, and Node.js.
• Experience with LangChain, LangGraph, or equivalent orchestration frameworks.
• Demonstrated success building asynchronous, distributed systems in production.
• Experience integrating LLM-based systems into complex user-facing web products.
• Excellent communicator comfortable in a fully remote, async team.
• Experience at a startup or in 0→1 product environments.

Nice To Haves

• Experience with retrieval systems, evaluation pipelines, or agent benchmarking.
• Contributions to open-source AI/developer tools projects.
• Familiarity with hardware design or ECAD concepts.
• Background in applied ML, data-driven experimentation, or NLP.
• Experience with distributed highly available systems that operate at significant scale.

Responsibilities

• Develop agentic reasoning capabilities in TypeScript (LangGraph).
• Integrate AI behaviors into the Flux web app (React/Redux) and Chat UI.
• Instrument telemetry and logging for runtime health, performance, and cost tracking.
• Collaborate with product and electrical engineers to shape intelligent ECAD workflows.
• Build and analyze evals; translate data into engineering decisions.
• Actively shape agentic patterns, conventions, and best practices for the broader engineering org.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed