Job stories

Depot, a Y Combinator company, is seeking an Enterprise Support Engineer to provide technical support and resolve complex issues for their enterprise customers. The role involves troubleshooting, identifying root causes, and implementing solutions to ensure a smooth customer experience.

Raycaster (raycaster.ai) (YC F24) builds a document IDE for high-stakes, regulated work in life sciences (CMC / quality / regulatory). The product turns messy, versioned documents (PDFs, Word redlines, tables) into a structured workspace where agents can search, cite, reconcile changes, and help draft.

We’re hiring a Research Engineer who can both (1) ship production systems and (2) help define the research direction for the company. There’s room to publish technical deep dives, benchmarks, and papers from day 0.

What you’ll do: - Build and ship core agent workflows: orchestration, retrieval, tool use, guardrails, evals - Work on document pipelines + versioning + reliability/observability - Turn research ideas into production features (and sometimes the other direction) - Help design benchmarks/datasets for high-stakes document tasks; potentially publish

What we’re looking for: - Strong engineering fundamentals (distributed systems / performance / reliability) - Comfortable implementing and iterating on evaluation (not just demos) - Product taste: you notice UX details and can build end-to-end - Able to learn a domain quickly and ask sharp questions

Nice to have: - Prior publications, open-source, or technical writing

Logistics: - NYC (Hudson Yards), in-person 5 days/week - Compensation: base + founder-level equity (details in process)

To apply, email: founders [at] raycaster.ai Include: a link to work you’ve shipped (GitHub/projects) and 1–2 examples of research/evals you’ve built (can be informal).

Delty, a YCombinator-backed startup, is seeking a Machine Learning Engineer to join their team. The role involves developing and deploying machine learning models to power Delty's product offerings.

Hightouch, a data activation platform, is hiring across multiple departments including engineering, sales, and customer success. The company is looking for talented individuals to join its growing team and contribute to the development and success of its innovative data solutions.

Flick, a Y Combinator-backed company, is seeking a Founding Frontend Engineer to help build their innovative product. The successful candidate will play a key role in shaping the company's technical direction and delivering a seamless user experience.

Subsets is a startup that specializes in creating AI-powered software tools to help companies manage their data more efficiently. The article highlights Subsets' focus on building innovative solutions that automate data organization and analysis, enabling businesses to make informed decisions based on their data.

The article is a job listing for a mid-to-senior-level LLM (Large Language Model) Engineer position at Sei, a company that develops AI and machine learning technologies. The role involves building and improving large language models, and the ideal candidate should have strong skills in machine learning, deep learning, and natural language processing.

Artie, a YC-backed company, is seeking a Senior Enterprise Account Executive to join their team. The role involves closing enterprise-level sales, managing complex deals, and working closely with the sales and product teams.

Cekura AI, a Y Combinator-backed startup, is seeking a Product Engineer to join their team. The role involves working on developing and enhancing the company's artificial intelligence-powered products and solutions.

Rollstack is seeking a Software Engineer with TypeScript expertise to join their team. The role involves developing and maintaining full-stack applications, with a focus on building efficient and scalable systems.

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.

EasyPost is a technology company that provides shipping and logistics solutions for businesses. The website outlines the company's various job openings, including roles in engineering, product, sales, and operations.

Almond, an artificial intelligence company, is hiring for various roles including machine learning engineers, data scientists, and full-stack engineers to help develop their conversational AI platform.

The article outlines the job description for a Senior Backend Engineer position at 9Mothers, a technology startup focused on maternal health solutions. The role involves developing scalable and secure backend systems, collaborating with cross-functional teams, and contributing to the company's technical strategy.

Clearspace, a Y Combinator-backed company, is seeking a Founding Designer to join their team and contribute to the development of their innovative workplace collaboration platform. The ideal candidate will have a strong background in user experience design and a passion for creating intuitive and visually appealing digital products.

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.