This range is provided by Denu Recruit. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Below covers everything you need to know about what this opportunity entails, as well as what is expected from applicants. Base pay range $140,000.00/yr - $190,000.00/yr Direct message the job poster from Denu Recruit We’re hiring a Founding Product Engineer (Backend) to join a high-conviction GenAI startup on a mission to reinvent software debugging . Backed by South Park Commons and The House Fund — and already used by customers like Perplexity and GPTZero — they’re building the most intelligent tool ever created for fixing broken software. This is a backend-leaning product role for someone who thrives on ownership and building. You’ll build high-signal, intelligent systems that span prompts to infrastructure — and play a foundational role in shaping the direction of the company from the ground up. What You’ll Do Design and build intelligent, high-signal debugging features powered by GenAI and custom prompt engineering Own backend systems end-to-end — from database design to API development and everything in between Build and iterate on Foam’s core tools for software denoising, bug detection, and developer assistive workflows Collaborate closely with frontend engineers and the founding team to ship full product experiences Write, refine, and evolve prompts that drive the intelligence behind our LLM-powered debugging engine Stay on the cutting edge of GenAI by testing and applying the latest models, tools, and research Ship quickly, talk to users, and own the outcomes of what you build — from code to impact What We’re Looking For 2–10 years of software engineering experience, with at least 2+ years at a fast-moving startup Proven experience building full-stack or backend-heavy product features — especially in GenAI or developer tools Deep familiarity with GenAI concepts (e.g. prompt engineering, LLM capabilities), even if not a formal ML background Strong backend skills across databases, APIs, and system design — plus enough frontend fluency to collaborate Experience with our stack or similar tools: TypeScript, AWS, MongoDB Comfortable building in ambiguity, owning problems end-to-end, and working closely with founders Strong communicator who thrives in an early-stage, high-trust team environment Must be excited to work in-office 5 days a week in San Francisco Bonus Points For Experience building Retrieval-Augmented Generation (RAG) systems or AI agents without relying on frameworks like LangChain Hands-on experience managing millions of embeddings in production-grade GenAI tools A genuine passion for AI and generative models, even if it’s not on your formal resume Previous work on AI-powered debugging or developer productivity tools What We’re Not Looking For Machine Learning scientists or A I/ ML engineers focused on theory Candidates with only big tech or enterprise experience New grads or bootcamp graduates If you’re passionate about building groundbreaking AI products that solve real-world software problems, and you want to be a core contributor at an early-stage startup shaping the future of developer tools, we’d love to hear from you. Apply now to be part of a founding engineering team and help redefine how software is debugged. Seniority level Seniority levelAssociate Employment type Employment typeFull-time Job function IndustriesSoftware Development Referrals increase your chances of interviewing at Denu Recruit by 2x Sign in to set job alerts for “Product Engineer” roles. San Francisco, CA $120,000.00-$220,000.00 2 days ago South San Francisco, CA $95,000.00-$115,000.00 3 months ago Alameda, CA $95,000.00-$134,000.00 2 weeks ago San Francisco, CA $140,000.00-$200,000.00 9 months ago San Francisco, CA $150,000.00-$200,000.00 11 months ago San Leandro, CA $140,000.00-$190,000.00 8 months ago South San Francisco, CA $120,000.00-$145,000.00 3 months ago San Francisco, CA $171,000.00-$209,000.00 5 days ago San Mateo, CA $195,000.00-$255,000.00 8 months ago San Francisco, CA $160,000.00-$200,000.00 1 day ago San Francisco, CA $80,000.00-$160,000.00 1 month ago San Francisco, CA $120,000.00-$240,000.00 8 months ago San Francisco, CA $180,000.00-$215,000.00 4 weeks ago San Francisco, CA $60,000.00-$120,000.00 1 month ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

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