Job stories

Legion Health (YC S21) operates a psychiatric practice and is building the AI-native operations layer for mental health care. We focus on the operational backend: scheduling, intake, documentation, billing, and care coordination. These workflows—not diagnostics—are the main bottlenecks in mental health delivery.

We run our own clinic, so the systems you build ship directly into real patient care. Our agent infrastructure currently supports more than 2,000 patients with one human support lead.

We’re hiring a Founding Engineer (in-person, San Francisco). You’d work directly with the founders on:

event-driven backend systems (Node.js, TypeScript, Postgres/Supabase, AWS)

LLM agent tooling (tool use, retries, memory, context management)

internal operations tools for both humans and agents

state/coordination logic that represents a patient’s journey

HIPAA-compliant data and audit pipelines

We’re open to backend or full-stack/product engineers who think in systems and have owned real workflows end-to-end. Prior experience with LLMs is optional; interest is required.

Details: full-time, in-person SF, salary $130k–$180k, equity 0.1–0.6%.

Apply here: https://www.ycombinator.com/companies/legion-health/jobs/oc6...

TrueMetrics, a Y Combinator-backed startup, is seeking a Python Software Engineer to work on analytics and algorithms. The role involves building data pipelines, developing predictive models, and optimizing algorithms to drive the company's data-driven solutions.

Infisical, a YC-backed startup, is seeking a Senior Full-Stack Engineer to join their team. The role involves developing secure and scalable web applications using modern technologies like React, Node.js, and PostgreSQL.

Infracost is seeking a Senior Product Engineer with expertise in Node.js to join their team. The role involves building and maintaining Infracost's cloud cost estimation tools, with opportunities to work on new features and improve the product's architecture and performance.

Hey HN! I'm Daniel, building Onlook, the Cursor for Designers. We built an open-source collaborative canvas for code that lets designers and developers craft incredible web experiences together.

Since launching, Onlook hit #1 on Hacker News, was the #1 trending repo on GitHub—above DeepSeek + Anthropic—and has earned over 23,000 GitHub stars. We’re looking to bring on Onlook’s first Founding Engineers.

This role requires autonomy - you’ll be setting standards for one of the fastest-growing open source projects backed by YC ever. You’ll help design and build an uncompromising visual IDE loved by tens of thousands of designers and engineers around the world, and you'll have a heavy influence on the direction of where we take the company.

You’re a full-stack engineer based in the U.S. who is ultra comfortable in Typescript, NextJS, React, and Tailwind, and ready to jump-in and build.

The most important things we look for:

• Olympic-level dedication – you want to be the best in the world at what you do.

• Ownership – you like autonomy and control over the destiny of the company.

• Speed – you’re comfortable shipping and iterating quickly with feedback.

• Craft – you’re opinionated and are willing to defend your opinions.

Ideally, you:

• Are looking for a fast-paced, early startup environment.

• Are willing to put in long hours and go the extra mile.

• Are comfortable with any part of the stack, front-end, back-end, or database.

• Believe in open source and are ok with your work being very public.

The comp range for this role is $130k-200k, 1-5% equity, great healthcare + other perks, and an awesome office if you happen to be in SF. We're open to remote / hybrid candidates.

If you’d like to stand out, please share a project or piece of work that you’re most proud of. We love seeing people’s work. If you have a personal website, please include that as well.

If you're interested, email daniel@onlook.com with your Github / LinkedIn / Website or work samples and why you'd be a great addition to the team, or apply here: https://www.ycombinator.com/companies/onlook/jobs/e4gHv1n-fo...

Excited to meet, and build alongside you!

Emerge, a YC-backed startup, is seeking a Founding Design Engineer to join their team and help build the future of career development. The ideal candidate will have a strong background in engineering and design, and will be responsible for developing innovative solutions to help people find and pursue their ideal careers.

This article outlines the role and responsibilities of a Technical Customer Success Manager, emphasizing the importance of maintaining strong relationships with customers, troubleshooting technical issues, and providing strategic recommendations to drive customer satisfaction and retention.

Saturn, a Y Combinator-backed startup, is seeking a Senior AI Engineer to join their team. The role involves developing and deploying advanced AI models and systems to drive the company's innovative product offerings.

Rocketable is seeking a Founding Engineer to help build an automation platform that streamlines workflows and increases productivity for teams. The ideal candidate will have expertise in software engineering, automation, and developing user-friendly tools.

Delty, a Y Combinator-backed startup, is seeking a full-stack software engineer to join their team. The engineer will be responsible for developing and maintaining web applications, contributing to the overall product and technology strategy.

Poka Labs, a Canadian software company, is seeking a Founding Engineer to help build its product and engineering team. The role involves designing and developing new features, working closely with the founders, and contributing to the overall strategic direction of the company.

Better Auth is seeking a Developer Relation Engineer to build and engage with their developer community, help developers integrate their authentication solution, and gather feedback to improve the product.

RetailReady is seeking an Associate Product Manager to help shape the company's product strategy and roadmap. The role involves working closely with cross-functional teams to identify customer needs, prioritize features, and ensure smooth product development and launches.

Jiga, a YC-backed startup, is seeking a remote Product Designer to join their team in Europe. The role involves designing innovative solutions and collaborating with cross-functional teams to drive the company's product development.

AccessOWL is seeking a Technical Account Manager to work with customers on identity and access management solutions. The role involves providing technical support, analyzing customer needs, and collaborating with the engineering team to deliver effective solutions.

Optery is hiring for various roles, including engineering, product, and design positions. The company focuses on developing privacy-preserving technologies to help individuals and businesses regain control over their personal data.

Cekura AI, a YC-backed startup, is seeking a Forward Deployed Engineer to work closely with customers and cross-functional teams to build and deploy AI solutions. The role involves technical implementation, client support, and contributing to the company's product and engineering efforts.

Corvus Robotics is scaling the largest autonomous logistics data capture fleet ever built. If you're allergic to leaded solder, actual revenue, spreadsheets, or ambiguity -- this role is not for you. More "cardboard boxes," less "Pelican cases."

Our fleet of flying warehouse drones is 5x-ing in 2026, and I'm looking for a generalist ex-founder or manufacturing leader in the SF Bay Area who wants to get their hands dirty massively scaling manufacturing operations in the US and overseas.

We need someone who has worked on hardware products (not just SaaS), communicates clearly, and is relentlessly resourceful. Mandarin proficiency and leading a product through EVT/DVT/PVT is an added bonus.

If this resonates with you, DM me, or send a super short email to a@ our url with: - why you’re interested - what was the biggest manufacturing fuckup you've recovered from - your target comp

PS - Please reshare our LinkedIn post! https://www.linkedin.com/posts/mhkabirr_at-corvus-robotics-w...

Thanks, Jackie

Liva AI, a YC-backed company, is seeking a growth intern to help drive user acquisition and engagement for their AI-powered assistive technology. The ideal candidate will have a strong interest in growth marketing and a passion for building innovative products.

Humanlayer, a Y Combinator-backed startup, is seeking a Founding Product Engineer to help build innovative AI and machine learning solutions. The ideal candidate will have strong technical skills, experience in product development, and a passion for creating cutting-edge technology.

Depot, a Y Combinator company, is seeking a Staff Infrastructure Engineer to join their team. The role involves designing, building, and scaling Depot's cloud infrastructure to support the company's growth.

Pivot Robotics is seeking a Mechanical Engineer - Controls to join their team. This role involves designing and developing control systems for their robotic products, with a focus on motion control, sensors, and software integration.

Roundtable, a Y Combinator-backed company, is seeking a Sales Development Representative to generate and qualify leads, schedule meetings, and support the sales team in driving growth.

Bild AI, a Y Combinator-backed startup, is seeking a Founding Engineer to join their team and work on developing cutting-edge applied AI solutions. The role involves building scalable and robust AI systems to solve real-world problems across various industries.

LangFuse, a leading language learning platform, is seeking a talented Engineering Manager to lead their engineering team and drive the development of innovative language learning solutions. The ideal candidate will have extensive experience in managing software development projects and a passion for creating user-friendly educational technology.

Trellis AI is seeking a Forward Deployed Engineer to join their team. The role involves working closely with customers to understand their needs and deploy Trellis AI's solutions to address their challenges.

ActiveLoop is hiring for various roles in artificial intelligence and machine learning, including software engineers, machine learning engineers, and researchers. The company develops tools and platforms that enable efficient training and deployment of deep learning models.

Mentra, a YC-backed company, is hiring a Head of Growth to help make smart glasses mainstream. The role involves driving user acquisition, partnership development, and expansion into new markets.