Founding Engineer: Agentic OS (YC-backed)
CLERA
About the Role We're building an agentic operating system for the Enterprise and have achieved product-market fit with thousands of agents deployed across scale-up startups and enterprise companies. We're looking for someone who operates at CTO-level—someone who can take a vague problem, scope it, build it end-to-end, and ship something that provides real value. This is a backend-heavy, AI-native role where you'll need to go full stack when required. No hand-holding. No waiting for specs. You need to be a full-stack engineer, an AI engineer, and a product engineer in one person. What You'll Do Own large parts of the product end-to-end, from user insight to production Build and improve agentic systems to make them more accurate, reliable, and powerful Work at the frontier of AI engineering—context engineering, tool use, agent architectures Talk to users, understand their pain points, and scope features that solve real problems Push AI-first development practices and scale yourself through automationReview code quickly while maintaining high standards across the codebase What We're Looking For A 100x engineer: razor sharp, able to solve difficult problems fast Deep product sense—you build for users, not for code's sake Strong Go backend experience with clean, maintainable code practices Experience building AI products, ideally agentic systems or AI coding tools Fascination with new coding paradigms (Claude Code, Cursor, coding agents) Ability to scale yourself to an extreme degree through automation Great code taste and ability to review PRs at speed without sacrificing quality Versatility: backend-heavy but not allergic to frontend (Vite/Typescript) Thrive in ambiguity—you don't need a PM to tell you what to build Track record of building something from scratch (startup, side project, shipped feature) Plus factors: AI research background, experience at an AI coding startup, former founder experience Compensation & Details Generous equity and compensation reflecting the outsized impact of this role Unlimited AI budget—we practice what we preach Work alongside a brilliant design engineer and a CTO cofounder who will push your growth A founding seat at the table where you'll shape the product and company direction Location Not specified in original posting #J-18808-Ljbffr CLERA
- ...Description About the Role We're building an agentic operating system for the Enterprise and... ...for specs. You need to be a full-stack engineer, an AI engineer, and a product engineer... ...who will push your growth A founding seat at the table where you'll shape the...Suggested
$180k - $225k
...Job Description Job Description Founding Engineer — Confidential (AI Startup, YC/a16z-Backed) Location: San Francisco, CA (Onsite, 5 days/week) Compensation... ...with significant traction ~ Proficiency in agentic development — designing and building orchestration...SuggestedFull timeRelocationVisa sponsorshipRelocation packageFlexible hours$120k - $250k
...Description Job Description About the Role A YC-backed enterprise AI SaaS startup is looking for a Founding Engineer to join their small, high-output team in San Francisco. The company is building an agentic operating system for the enterprise, with thousands...Suggested$180k - $280k
...Founding Frontend Engineer $180,000 - $280,000 1-2% Equity + 401(k) + Benefits... ...to join one of the strongest YC start-ups of recent batches,... ...opportunity to join a fast-growing YC-backed AI startup that has raised... .... The team is building an agentic AI platform that replaces...SuggestedRelocationFlexible hours- ...technical challenge – our engineering team focuses on reverse... ...About The Role As a Founding Engineer, you'll own... ...engineering team built around agentic coding tools. You... ...Who We Are We're backed by Y Combinator and the... ...at Circle Medical (YC W17), built Ambience Healthcare...Suggested
- ...ML/AI Research Engineer — Agentic AI Lab (Founding Team) Location: San Francisco Bay Area Type: Full-Time Compensation: Competitive salary + meaningful equity (founding tier) Backed by 8VC, we're building a world-class team to tackle one of the industry's most critical...Full time
$200k - $300k
Job Title Founding Forward Deployed Engineer Salary $200-300k + Equity Company Description Corvera - YC-backed AI workforce for CPG brands Job Description You will build the frontier agentic systems that define how the most ambitious CPG brands operate. As an early hire...$140k - $220k
About Legion Health Legion Health (backed by Y Combinator) is building autonomous mental healthcare—AI that takes real responsibility... ...workflows that make great care feel effortless Role: Founding Engineer - AI‑Native Mental Health Care (In‑Person in SF) I’m hiring a...Full timeFor contractorsLive inVisa sponsorshipFlexible hours- ...data processing. With top-tier backing from Gradient Ventures (... ...industry. About The Role As a Founding Engineer at Mentum, you’ll have the chance... ..., model gateways, and agentic workflows. Collaborate with... ...Salesforce Park, surrounded by other YC AI startups. You’ll have a...Work at officeShift work
- The Role Founding agentic engineer. Own the agent layer end-to-end. Temper is an agentic integration platform for the real economy. Our agents do real work with real consequences in production systems. You own the systems that make those agents good, working directly with...Live inWork at office
- ...guesswork. Vidably is backed and supported by AI Fund. Founded by Andrew Ng, AI Fund is... ...storefront integration across OS 2.0 and legacy theme... ...customers without bespoke engineering per store Required Qualifications... ...production code with agentic tools (Cursor, Claude...Odd jobRelocation
- ...one of our customers. She will pick the best candidates from Jack's network The next step is to speak to Jack. Founding Engineer Company Description VC-backed wealth tech startup Job Description Join as a founding engineer to build an AI-native personal financial...
$200k - $250k
...Description Job Description Senior Founding Engineer | San Francisco, CA | Avg $200K–$250K... ...deployment into real-world environments. Backed by Y Combinator, Floodgate, and PeakXV,... ...Qualifications Founding engineer or YC startup experience Voice AI or conversational...$125k - $200k
...Founding AI Engineer / Member of Technical Staff YC - Startup New York City or San Francisco Bay Area $125,000.00 - $200,000.00 (US Dollar) PS. - Please apply only if the location is suitable for you and you are willing to travel! Thank you! Job Overview...Temporary workWork at office$150k - $250k
...Job Description About the Role A Y Combinator-backed AI startup is looking for a Founding Engineer – Full Stack to join a small founding team at the ground... ..., Terraform, and AWS . ~ Experience building agentic systems or working with LLMs in production. ~ Strong...RelocationVisa sponsorshipWork visa$160k - $230k
...Job Description Job Description Founding Engineer (Forward-Deployed) Location: San Francisco... ...chains. It's a high-growth team backed by a top-tier VC, working to define the... ...the company Set the standard for what agentic supply chain software looks like...Visa sponsorship$132k - $222.2k
...understanding and management of disease, and give back to our communities through philanthropy... ...purpose‑built team that fuses scientific agentic AI, lab automation, and unified data... ...accelerate laboratory science. You will engineer the connective tissue between Agentic AI...Full timeFlexible hours$200k
...The next step is to speak to Jack. Founding Engineer - AI ($200K+ + Equity) at Muro AI - SF-... ...Company Description: Muro AI - Backed by top-tier VCs who invested in PlanGrid... ...decisions. What you will do: Build agentic workflows and multi-agent systems using...- ...startup based in Berlin is looking for a Founding Engineer to join the core product team. You'll... ...in TypeScript (front-end and back-end) and Python for full-stack development... ...supply chain space. The platform uses agentic AI to analyze suppliers, benchmark cost...RelocationVisa sponsorship
$130k - $180k
...organizations at Apple for nearly a decade. With backing from Menlo Ventures, we’re leveraging cutting-edge technologies like agentic AI, LLMs, and Retrieval-Augmented... ...indirect spend. About this role As one of our founding engineers, you will contribute to building the...$150k - $200k
Revic AI is hiring a Founding Engineer to build the context and orchestration layer for AI‑first... ...data into a collective memory, design agentic planners/executors, and deliver outcomes... ...remote). About Revic Revic AI is a startup backed by SYN Ventures, working with customers...Work at officeRemote work- ...with AI - and we need an exceptional engineer to join our founding team in our San Francisco hackerhouse... ...We're already working with leading VC‑backed startups like Mintlify, Luminai, and... ...to deployment. We're building fully agentic systems that automate complex workflows...
$180k - $280k
...is recruiting for one of its clients a Founding Engineer - this is an onsite role in San Francisco... ...previously built and exited a VC-backed insurance startup and scaled engineering... ...strong (Nice-to-have) Actively uses agentic engineering tools (e.g. Claude Code, Cursor...Contract workRelocation package$150k - $250k
...This is a 1 of 1 role. We're looking for a founding engineer to work alongside a Thiel Fellow founder... ...) and the founder is a Thiel Fellow, YC alum, Stanford dropout who recently sold... ...probably one of the first early adopters of agentic coding, and use AI gen to move faster in...Work at officeImmediate startNight shift- A stealth-stage, YC-backed consumer social start-up is hiring a Founding Engineer - a true partner to the founders to solo-build a real-time, AI-driven mobile platform. The hiring bar matches top-tier research and product labs. The product launches in 2-3 weeks with a...Immediate startVisa sponsorship
- ...remittance — at millisecond latency with zero downtime. Backed by a16z and YC. $21M Series A, 30%+ month-over-month growth,... ...transactions today, billions ahead. THE ROLE As the Founding Forward Deployed Engineer at Sphere, you’ll embed directly with Sphere's most strategic...Contract workWork at office
$220k - $280k
...Company Description Venture-backed AI infrastructure startup building... ...Join one of the earliest engineering teams building critical infrastructure... ...sits at the intersection of agentic systems, evaluation, and... ...work gets done. As a Senior Founding Engineer, you'll work...Work at officeVisa sponsorshipRelocation package$200k - $300k
...is recruiting for one of its clients a Founding Engineer - this is an onsite role in San Francisco... ...paying users and strong institutional backing, where your work will have immediate... ...that goes well beyond standard search. Agentic systems – Architect and ship agents...Immediate startFlexible hours- We raised $3M from YC and angels like Aravind (CEO Perplexity),... ...Vohra (Superhuman), to build the agentic operating system for the... ...You need to be a full‑stack engineer, an AI engineer, and a product... ...seat at the table. This is a founding role. You'll shape the product...
$130k - $200k
Harness Engineer Location: San Francisco (in-person, in-office, full... ..., evals, guardrails, and agentic scaffolding that turn raw generation... ...put their name on. We’re backed by operators from LinkedIn,... ...equity upside as part of the founding team Medical, dental, and vision...Full timeWork at officeRelocation package
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