developer

ApplyMint; San Francisco (CA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive compensation

Carry in the YC fund

High autonomy engineering team

Job summary

ApplyMint, located in San Francisco, is hiring Product Engineers to collaborate on building innovative software for startups. As part of a small, high-autonomy team, you will define how we develop software in the evolving AI landscape.

The role offers the opportunity to work directly with founders, solve real-world problems, and contribute to products like Work at a Startup and Demo Day. Competitive compensation and involvement in the YC fund are also part of the package.

Qualifications

• Experience in software development, particularly in AI and coding agents.
• Ability to work closely with founders and startups.
• Interest in experimenting with new software development methods.

Responsibilities

• Build and operate products for startups.
• Work closely with a small engineering team.
• Define software development processes in the context of AI.

Skills

Software development

AI systems

Collaborative teamwork

Quick decision-making

Tools

Rails

React

Postgres

Python

TypeScript

Job description

YC is hiring Product Engineers to build the future of YC—and increasingly, software for startups everywhere.

We’re a team of ~20 engineers building everything from Work at a Startup and Demo Day to investor software, founder tools, AI systems, and new open source projects. We don’t have PMs. Engineers talk to users, decide what to build, and ship quickly.

Some of what we’ve been building:

• New products: GStack rethinks the software stack for an AI‑native world. GBrain explores persistent memory and knowledge systems for AI. Paxel and other AI‑powered products help founders—and increasingly everyone else—build software and companies faster.
• Products at scale: We build and operate Work at a Startup (2M+ candidates, 1000s of early startups), Demo Day, our investor marketplace, SAFE signing, founder CRM, and the software that powers YC itself.
• Data: YC has over 20 years of proprietary startup data. We’re applying it to how we think about the future of YC’s batch, fundraising tools, hiring, recommendations, and entirely new ways to help people start and grow successful companies.

AI has fundamentally changed how we build software, and we’re looking for engineers who are already experimenting with coding agents, MCP, LLMs, context engineering, evals, developer tooling, and whatever comes next. Our stack includes Rails, React, Postgres, Python, TypeScript, LLM APIs, and plenty of experimental infrastructure, but we’re much more interested in great builders than expertise in any particular framework.

We’re in person in San Francisco (Dogpatch). You’ll work closely with founders and alongside people like Garry, Jared and Diana, helping define how YC—and startups more broadly—build software in the AI era.

We offer competitive compensation, carry in the YC fund, and a small, high‑autonomy engineering team.

Learn more about the team and role at https://www.ycombinator.com/software. If this sounds exciting, I’d love to chat -- email me directly at [e-mail].