Product Engineer, Bookface
$250kY Combinator
YC Software Engineer
Y Combinator is run by a small team that is committed to helping founders start the next Airbnb, Stripe, Reddit, or Doordash. We work out of the same campus in San Francisco that we run the batch in. We also operate according to the same principles we teach our startups - so if you've read Paul Graham's essays or watched our videos on YouTube, you can already predict what it would be like to work here. Working at YC places you in the center of the startup world.
To manage the YC program at scale, we write lots of software. The Bookface team specifically focuses on building YC's most critical tools to help founders through the batch – and well afterwards. Some projects we're working on:
- Bookface. Software that helps operate and manage the day-to-day batch, including event programming, office hours, pitch prep, and more. Every company that goes through the batch relies on this software to get the most out of their YC experience.
- Forums & Alumni Directory. Helps founders get the best advice and feedback on how to build their startup – from technical advice, customer acquisition, fundraising, and more.
- Demo Day investor portal. Matching founders and investors for early seed fundraising, with billions of dollars resulting from the connections we've made through our platform.
- Launch YC. A public platform for YC founders to get early customers and product feedback from both other YC alumni and the broader public.
Our whole software team is only 15 full-stack product engineers, and we enjoy working in a small team with high impact and knowing each other by name. We have a broad range of experiences from bigger companies like Meta and Google, and many of us have started startups ourselves. True to YC advice, our product engineers talk to our customers regularly and ship fast. We also define our own roadmap and often design our own products when needed.
Our stack is pretty straightforward (Rails, React, Postgres), and the last three engineers have learned it on the job. That said, we've found that enjoying front-end software development is key to being successful here, so it's almost a requirement for the role. Our needs as an organization require a large degree of flexibility, and people change teams quite often.
Lastly: If you're interested in starting your own startup one day: eight former engineers on our team have gone on to start YC-funded startups. If you want to start your own startup someday but aren't ready to do it now, working at YC could be an excellent way to get there.
Location: This is an in-person role at YC's campus in Dogpatch, San Francisco. This is where our users (founders, partners, and employees) are five days a week, so it's optimal for you to be here with them. You must live in the SF Bay Area or be willing to relocate. We offer generous relocation support for those who want to move to SF to work here.
Compensation: $250K to $500K base salary, depending on experience. YC has a profit-sharing program, which is comparable to equity in an early-stage startup or carry in a VC fund.
Benefits: Our full benefits package includes medical, vision, and dental plans, infertility benefit, STD/LTD, life insurance, commuter benefits, flexible spending account, health savings account, 401(k) + 4% matching, generous parental leave, paid holidays, and flexible paid time off policy.
Work Authorization: Y Combinator is willing to sponsor certain employment visas in accordance with company policy.
Legal note: Y Combinator considers qualified applicants with criminal histories, consistent with applicable federal, state, and local law, including San Francisco's Fair Chance Ordinance. Y Combinator is committed to protecting the privacy of the personal information of job applicants and complying with the California Consumer Privacy Act. The privacy policy of Ashby, Inc., the hiring platform used by Y Combinator, governs the collection of such data and can be found here.
- ...developers that unlock equal & accelerated access to the enterprise market. We’re growing rapidly and expanding our team of full-stack product engineers. The Enterprise team develops products that enable companies to become 'enterprise-ready,' including SSO, Directory Sync,...SuggestedRemote workFlexible hours
$175k - $190k
...Position Summary The Senior Drug Product Process Engineer is responsible for leading all CGMP drug product manufacturing technical activities related to product and process technology transfer of clinical and commercial launch at CDMO’s with a primary focus on prefilled...SuggestedContract workLocal area$150k - $275k
...are a few thousand people who will shape the trajectory of superintelligence. Come and be one of them. The Role We are hiring Product Engineers to work on Fluidstack’s AI-integrated software stack that enables us to build capacity faster than anyone in the industry. You...SuggestedFull time$150k - $300k
...About the Role A fast-growing, pre-seed-funded AI startup in the talent/recruiting space is looking for a mid-level Product Engineer to join a small, high-ownership team in San Francisco. You'll work directly with founders, product, and design to build reliable, user-...SuggestedLocal areaRelocation- ...such as instruction drifts and context retrieval loss in scaled production environments. Hundreds of teams building autonomous agents... ...Kevin Hartz, and others. The Role: We are looking for a Product Engineer with 2+ years of experience to join our team and build high‑taste...Suggested
$175k - $250k
...developer‑friendly encryption key management and secret storage product. Vault enables applications to encrypt, segment, and... ...functionally with other product teams (e.g., AuthKit, Radar), solutions engineering, and GTM to ensure Vault integrates seamlessly into the...Remote work- ...agents that work like human analysts – on a browser. While our core engineering team scales what works, we need someone to figure out what's next. If you love building prototypes that become products, pushing the boundaries of what AI agents can do, and shipping experiments...Temporary workWork at officeRelocation package
- ...Mintlify, Inc. is seeking product-minded engineers in San Francisco to build critical, user-facing features. Candidates should have a spike in technical depth, whether in crafting complex React UIs or architecting scalable backend systems. The role involves collaborating...Flexible hours
- ...A technology company in San Francisco is looking for a strong engineer to build and ship software products. Responsibilities include owning features from gathering context to delivery, defining user interactions, and building integrations. The ideal candidate excels in...
- ...Job Description We are looking for product-minded engineers who want to build critical, user-facing features. We don’t expect you to be an expert in everything. Instead, we are looking for candidates with a distinct "spike" in technical depth —whether that is crafting...Immediate startFlexible hours
- ...About AirOps AirOps is the first end-to-end content engineering platform built for the AI era. In a world where discovery is shifting from... ..., New York and Montevideo. About the Role We're looking for a Product Engineer to build product experiences that people love. You'll...Flexible hoursShift work
$175k - $250k
...customers can onboard seamlessly and kick-start their enterprise journey. Our engineers obsess over the developer experience, actively seeking out feedback and new perspectives to inform the products we build. We’re searching for engineers who share this empathetic approach...Remote work- ...the hiring layer more critical than ever. The Role We have 15 engineers and close to 9 figures in revenue. That ratio is intentional. Every... ...in shaping the direction of the business. We’re looking for product engineers who think like builders, not just coders. That means...
$250k
...Job Title: Product Engineer, Applications Operations Salary: $250K–$500K Company Description: Y Combinator - The world's most influential startup accelerator Job Description: You will build the operational backbone of YC, developing full-stack systems for the admissions...- ...Product Engineer Product Engineer (Design-First, Frontend-Capable) About BlueAlpha BlueAlpha is rewriting how marketing technology is built. We’re building an AI-native operating system where specialized agents optimize across messy, multi-platform marketing data. That...Remote workFlexible hours
- ...We are a team of engineers and researchers with an ambitious mission: to move the world toward error-free software. We're doing this... ...building and evolving backend APIs/data models and operating production services with observability Mobile experience (iOS with Swift/...Relocation package
- ...campaigns, bounty rewards, streaks, and community features, Shipd aims to attract the best talent for complex data production. Now we’re looking for a Product Engineer to help us scale the platform into the “Duolingo for coding bounties” or “Kaggle but paid”. What You’ll Do...
- ...The Role What You'll Do Ship product and talk to users. Build performant, beautiful experiences that people genuinely enjoy using. Own... ...platform to external systems. What We're Looking For A strong engineer with attention to detail, thoughtful about UX, and deeply empathetic...
$190k - $230k
...'re replacing the work itself. Small team, $5M from Peak XV (formerly Sequoia India), shipping fast. Looking for our founding product engineer. What you\'ll work on The honest answer is: whatever moves the product furthest. We have surface area in every direction and we...Daily paidLive inWork at officeRemote work- ...early-stage startup building critical infrastructure for the AI ecosystem. Their platform gives engineering teams real-time visibility into how their AI agents behave in production — catching the silent failures that traditional monitoring tools miss entirely. Your Focus...Temporary workRelocation
- ...critical infrastructure that developers need to securely scale their products to large organizations. We recently raised a $100M Series C,... ..., reduce risk, and accelerate their enterprise journey. Our engineers obsess over the developer experience, actively seeking out...Remote work
- ...documents the way a human would, and make it possible to build products, train models, and automate processes at scale. We’ve grown incredibly... ...z, Benchmark, and First Round Capital, and are hiring a Design Engineer. The Role As a Design Engineer, you'll own the development of...Work at officeLocal area
- ...What we're looking for? We are seeking an experienced fullstack product engineer to join our small, senior team. We’re looking for someone with a strong product sense, experience shipping and maintaining features for consumer-facing products, and a willingness to own...Contract work
$180k - $290k
...Product Engineer — Search You’ll own the developer-facing search experience at Firecrawl — taking the retrieval and ranking improvements coming out of research and shipping them as a product developers can’t stop using. This isn’t a pure research role and it isn’t a pure...Full timeTemporary workLive inRemote workShift work$150k - $215k
...Product Engineer – Artie Salary: $150K - $215K • San Francisco, CA, US • Full-time • Will sponsor visa. About the role We're a small, dynamic team based in San Francisco, and we're looking for a founding engineer to join us. In this in‑person role, you'll have the opportunity...Full timeVisa sponsorship- ...A software development company in San Francisco is seeking a skilled engineer to design and ship a groundbreaking application for team collaboration and code review. The role focuses on building full-stack web applications with exceptional user experiences, utilizing...Relocation
- ...Product Engineer Location: Onsite San Francisco (5 days onsite AND hybrid options) We have multiple startups interested in talent. Here is a generic summary. Instead of a perfect job description, we present talented individuals to companies and allow them to share how...
$150k - $220k
...About the role As a founding product engineer at Hyperspell, your mission is to build the product surface area that makes agent memory useful, trustworthy, and easy for developers to adopt. This is not a customer implementation role. You will talk to customers, learn...$190k - $210k
...About the Role A well-funded, early-stage fintech startup is looking for a Founding Product Engineer to join a small, senior team building a new kind of collaborative financial product. You'll have broad ownership across the stack, working directly with the founding team...Remote work- ...About the Role We are seeking an experienced fullstack product engineer to join our small, senior team at an early‑stage fintech startup. You'll work in a fast‑paced environment where you can contribute to both front‑end and back‑end development while building a new kind...Contract work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Product Engineer, Bookface. Be the first to apply!
- rtl design engineer San Francisco, CA
- new product engineer San Francisco, CA
- product design engineer San Francisco, CA
- product engineering manager San Francisco, CA
- design engineer San Francisco, CA
- senior fpga design engineer San Francisco, CA
- senior design verification engineer San Francisco, CA
- product security engineer San Francisco, CA
- system design engineer San Francisco, CA
- manufacturing design engineer San Francisco, CA


