---
title: 'Product Engineer, New Products at Y Combinator'
canonical: 'https://feeny.ai/job/product-engineer-new-products-y-combinator-san-francisco-xp72ynj2xrpm'
type: 'job'
last_seen: '2026-09-11'
---

# Product Engineer, New Products at Y Combinator

- **Company:** Y Combinator
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-06-22
- **Last confirmed live:** 2026-09-11
- **Apply:** https://jobs.ashbyhq.com/ycombinator/1b08c336-45bb-4c31-b626-02f4aec79ca2

## Job description

## About the role

Y Combinator is building a new generation of products for the AI-native era — and we're hiring product engineers to build them. Some ship in the open to hundreds of thousands of developers (gstack, gbrain — already north of 130,000 GitHub stars between them). Some are proprietary products in their own right (Paxel). All of them start from the same belief: a single builder with the right tooling now ships like a team of twenty, and we intend to build the tools — and the platforms — that prove it. This is a rare seat. You won't be maintaining someone else's roadmap. You'll be taking new products from zero to one, owning them end-to-end, and putting them in front of real users fast.

## What you'll do

- Take new products from 0→1 — design, build, and ship full-stack systems and developer tools end-to-end
- Build AI-native software: agent orchestration, semantic search, embeddings, knowledge graphs, LLM workflows
- Own developer and user experience completely — 30-second installs, time-to-first-value measured in minutes, interfaces people actually want to use
- Ship some work in the open and engage a real community; ship other work as commercial product. Pick the right call for each
- Use your own fully AI-enabled dev stack and make pragmatic tradeoffs in a fast-moving environment

Who this is for This role is ideal if you:

- Are a strong full-stack, product-minded engineer who owns products, not just code — no PMs, no designers, you make the product and UX calls
- Live in an AI-native dev stack and have built AI-enabled products, agents, or prototypes
- Care about developer experience and the craft of a tool people love
- Like turning hard problems into clean, usable systems and shipping fast
- Are low-ego, comfortable with ambiguity, and get along with everyone in our ~100-person company

Backgrounds that tend to succeed

- Former founders and early-stage startup engineers
- Prolific open-source contributors or maintainers
- Product engineers who've built and shipped complete products end-to-end
- Engineers who've owned both backend systems and frontend/user experience

## What we're looking for

Required - Experience shipping full-stack or systems software end-to-end - Strong system design and independent decision-making - Strong product sense and comfort designing user experiences - Clear communication and the ability to work directly with non-technical stakeholders - High judgment and integrity Nice to have - LLMs, prompt engineering, or agent-based systems - Open-source maintainership and community engagement - TypeScript, Postgres/pgvector, Rails, React (the stack our current products run on) - Retrieval, search, or knowledge-graph systems We care more about your ability to build and ship complete products than any specific stack.

## How we work

YC operates with a small, high-trust team. There are no rigid roadmaps or handoffs between product, design, and engineering — engineers are expected to use judgment, talk to users, and build the right thing. You'll work on high-impact problems and be responsible for the full experience, not just the implementation.

Details

- Compensation: $185K–$485K base + profit-sharing (comparable to startup equity or VC carry)
- Benefits: Medical, dental, vision, 401(k) + 4% match, parental leave, flexible PTO, and more
- Location: San Francisco Bay Area (or willing to relocate)
- Work authorization: Y Combinator is willing to sponsor certain employment visas in accordance with company policy.

As a member of the team, you'll get full access to the YC program, just like founders do. You'll learn how YC works, follow hundreds of companies, and meet some of the most successful people in the startup world. 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 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.

## About Y Combinator

## Company Overview
- **One-liner**: Y Combinator is a startup accelerator that provides seed funding, intensive mentorship, and a powerful alumni network to early-stage startups, helping them launch and scale.
- **Entity Type**: Private (startup accelerator)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2005
- **Founders**: Paul Graham, Jessica Livingston, Robert Morris, Trevor Blackwell

## Core Business
- **Primary industry**: Startup accelerator, venture capital, startup community
- **Target customers**: Early-stage startup founders (B2B and B2C, across all industries)
- **Mission**: “Make something people want” – to help startups get into dramatically better shape in three months and set them up for long-term success.

## Products & Services
- **[YC Program](https://www.ycombinator.com/about)**: A three-month, in-person (San Francisco) accelerator program. Y Combinator invests $500k per company ($125k for 7% on a post-money safe + $375k on an uncapped safe with MFN). Startups receive group and one-on-one office hours, weekly meetups, access to alumni talks, Demo Day, and ongoing support.
- **[Bookface](https://www.ycombinator.com/about)**: A private social platform for YC founders to connect, ask questions, share expertise, and find co-founders or hires.
- **[Hacker News](https://www.ycombinator.com/about)**: A news aggregator and community where YC alumni and the tech world discuss technology, startups, and job postings.
- **[Work at a Startup](https://www.ycombinator.com/jobs)**: A job platform connecting job seekers with thousands of roles at YC-backed companies.
- **[YC Continuity](https://www.ycombinator.com/blog/come-work-at-yc)**: A program offering resources and investment for growth-stage YC companies, including a Series A Program and investment associates.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (private organization)
- **Key Metric**: Total funding deployed – YC has invested in over 6,000 startups (as of 2025). Portfolio includes companies like Airbnb (went public at over $100B valuation), Stripe, DoorDash, Coinbase, and OpenAI.
- **Notable Investors/Partners**: YC itself is the investor. Partners include Sam Altman (former president, now CEO of OpenAI), Jessica Livingston, and other YC alumni who serve as partners.
- **Growth Signals**: YC now runs four batches per year (winter, spring, summer, fall). The alumni community is described as “probably the most powerful community in the startup world.” YC Continuity was launched to support growth-stage companies.

## Competitive Advantages
- **Brand and track record**: YC’s name alone signals quality to investors, early adopters, and press, giving portfolio companies instant credibility.
- **Alumni network**: 6,000+ founders who actively help each other through Bookface, intros, and deals – a powerful, self-reinforcing moat.
- **Intensive program**: The compressed three-month timeline forces rapid progress; founders often call it the most productive period of their lives.
- **Access to capital**: Demo Day creates price competition among top investors, leading to higher valuations for YC startups.
- **Perpetual support**: Office hours and community access continue for the life of the company and beyond.

## Strategic Focus
- **Scaling the accelerator**: Running four batches per year and expanding the number of companies per batch (recently ~200 per batch).
- **Supporting later-stage companies**: YC Continuity helps portfolio companies raise Series A and beyond with workshops, templates, and 1:1 support.
- **Building internal tools**: The software team builds the “OS that runs all of YC” (Demo Day experience, financial systems, founder tools) to improve operational efficiency.
- **Global reach**: While the program is in San Francisco, YC attracts founders from all over the world and has specific channels for international, women, Black, and Hispanic/Latino founders.

## Why Work Here
- **Impact**: Work directly on products used by thousands of the world’s most ambitious founders. You get to see the inner workings of the startup ecosystem and learn from top entrepreneurs.
- **Culture**: Small team (~100 people) with a strong sense of mission. The environment is described as high-urgency, collaborative, and founder-focused.
- **Remote/Hybrid**: Most roles are based in San Francisco, CA. Job postings indicate on-site presence is expected, though some roles may offer flexibility.
- **Perks**: Access to all YC talks and resources (same as founders), exposure to the startup community, and the opportunity to learn how to build a startup from the inside.
- **Compensation**: For engineering roles, salary ranges from $160K – $485K (based on job postings). The team includes product engineers, software engineers, and legal analysts.

## Sources
1. [ycombinator.com](https://www.ycombinator.com/) – Company overview and program details
2. [ycombinator.com/companies/y-combinator](https://www.ycombinator.com/companies/y-combinator) – Team size, founding info, job listings
3. [ycombinator.com/about](https://www.ycombinator.com/about) – Detailed program description, community, and benefits
4. [ycombinator.com/careers](https://www.ycombinator.com/careers) – Careers page and open roles
5. [ycombinator.com/blog/come-work-at-yc](https://www.ycombinator.com/blog/come-work-at-yc) – Blog post about working at YC and YC Continuity

## Other roles at Y Combinator

- [Executive Assistant](https://feeny.ai/job/executive-assistant-y-combinator-san-francisco-r6vq8hmg5h46) — San Francisco, CA
- [Events Manager](https://feeny.ai/job/events-manager-y-combinator-san-francisco-jq9swn4y1swr) — San Francisco, CA
- [Product Engineer, Applications Operations](https://feeny.ai/job/product-engineer-applications-operations-y-combinator-san-francisco-c5wqb7fnbex2) — San Francisco, CA
- [Investment Associate & Product Engineer](https://feeny.ai/job/investment-associate-product-engineer-y-combinator-san-francisco-q5kamb7f9pak) — San Francisco, CA
- [Product Engineer, Internal Tools](https://feeny.ai/job/product-engineer-internal-tools-y-combinator-san-francisco-q1j2978ye0t8) — San Francisco, CA
- [Software Product Design Engineer](https://feeny.ai/job/software-product-design-engineer-y-combinator-san-francisco-54mwpg0b5fm2) — San Francisco, CA
- [Product Engineer, Bookface](https://feeny.ai/job/product-engineer-bookface-y-combinator-san-francisco-31xdwazj7ysw) — San Francisco, CA
- [Product Engineer, New Products](https://feeny.ai/job/product-engineer-new-products-replit-foster-city-vffcee5t8pv6) — Foster City, CA