Software Engineer, Agentic Products at Flux

Why Flux Flux is taking the hard out of hardware. To do this, we’re building the world's first AI hardware engineer. Founded in 2019, our platform enables anyone to go from idea to manufacturable board using nothing more than a natural language prompt. This democratizes a process that has historically required years of specialized expertise. We're going after a $15B+ electronic design automation market, backed by 8VC, Bain Capital Ventures, Liquid 2 Ventures, Outsiders Fund, Figma board member John Lilly, and GitHub founder Tom Preston-Werner. In February 2026, we closed a total of $37M in funding to accelerate that mission. What happens when we unlock the ability for anyone to make hardware? We fundamentally reshape the world. That's our mission, and we're just getting started. About the Role Flux is building the world’s first AI Hardware Engineer, software that can design real, manufacturable electronics from a prompt. As a Software Engineer, Agentic Development, your mission is to 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. What You’ll Do 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 You’ll Bring 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. Preferred Qualifications 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. Profile Impact-oriented: You don't feel done until real people are getting real value from what you built. Ambiguity-native: You thrive in th