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Founding Product Engineer Jobs (NOW HIRING)

Turn the AI runtime into product. Design and ship full vertical experiences -- Search, Shop, Finance, Health, Legal -- end to end on the shared Next.js + FastAPI stack. What you'll do * Own a ...

Own features end-to-end - interview customers every week and watch them use the product, and ship the feature they need by the next week * Actually use the algorithms, data structures, and system ...

Founding Product Engineer (Client Search) | AI + B2B SaaS | NYC (In-Person) We're partnering with a seed-stage B2B SaaS startup building AI-powered sales software for the $9T chemicals industry, an ...

Founding Product Engineer (Client Search) | AI + B2B SaaS | NYC (In-Person) We're partnering with a seed-stage B2B SaaS startup building AI-powered sales software for the $9T chemicals industry, an ...

Mentor senior and staff AI engineers. * Influence product and infrastructure strategy. What We're Looking For * 8+ years of AI/ML or software engineering experience. * Deep expertise in production AI ...

Founding Product Designer

Washington, DC · On-site +1

$40 - $50/hr

Founding Product Designer Department: Buckstop Employment Type: Contract Location: Washington, DC ... You will work directly with the founders, engineers, and customers to create intuitive workflows ...

Founding Product Manager F o u n d i n g P r o d u c t M a n a g e r Last updated: September 27 ... Report to CEO and work cross-functionally with engineering leadership and across the entire ...

You\'ll work closely with Engineering, Product, Audit Engineers, and customers to understand how ... The Founding Product Designer will help define how customers experience Clark, ensuring our ...

They are seeking a founding Product Engineer to build the product surface area that enhances agent memory and facilitates developer adoption, emphasizing backend systems and integrations.

... IDF engineers and operators. We operate with a high speed, high integrity, and high autonomy ... Founding Product Designer We're looking for a Founding Product Designer to work directly with the ...

Showing results 41-60

Founding Product Engineer information

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$53K

$144.1K

$205K

How much do founding product engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for founding product engineer in the United States is $144,072.00, according to ZipRecruiter salary data. Most workers in this role earn between $88,000.00 and $205,000.00 per year, depending on experience, location, and employer.

What is the difference between Founding Product Engineer vs Product Engineer?

AspectFounding Product EngineerProduct Engineer
CredentialsBachelor's or higher in Engineering or related field; startup experience preferredBachelor's or higher in Engineering or related field
Work EnvironmentEarly-stage startups, high-impact, fast-pacedEstablished companies, product teams, collaborative
Industry UsageCommon in startups and new product venturesWidespread across tech and manufacturing sectors
ResponsibilitiesDesigning core product features, building foundational systems, wearing multiple hatsDeveloping, testing, and maintaining product features, collaborating with teams

The main difference is that a Founding Product Engineer typically works in early-stage startups, taking on a broader role in building the product from the ground up, while a Product Engineer generally works in established companies focusing on specific product development tasks.

Are founding product engineers in demand?

Founding product engineers are in high demand, especially in startup environments where technical leadership and product development are critical. They often possess skills in software development, system architecture, and cross-functional collaboration, making them valuable for building and scaling new products quickly.

What does a founding product engineer do?

A founding product engineer is responsible for designing, developing, and launching the initial version of a product, often working closely with founders and cross-functional teams. They typically have skills in software development, product design, and problem-solving, and may use tools like coding languages, prototyping software, and project management platforms during the early stages of product development.

What is a founding product engineer?

A founding product engineer is an early team member responsible for designing, developing, and launching a company's initial products. They often work closely with founders, have a broad skill set, and may influence product direction and technical architecture during the company's startup phase.

What cities are hiring for Founding Product Engineer jobs?

Cities with the most Founding Product Engineer job openings:

What states have the most Founding Product Engineer jobs?

States with the most job openings for Founding Product Engineer jobs include:

What are popular job titles related to Founding Product Engineer jobs?

For Founding Product Engineer jobs, the most frequently searched job titles are:

Founding AI Product Engineer

San Francisco, CA • On-site

$200 - $250/hr

Other

Posted 21 days ago


Job description

Building a unified OpenAI-format API layer for every major LLM provider.

Every new language model brings a fractured integration pattern, forcing developers to write bespoke glue code just to swap between Anthropic, Llama, and Huggingface. As a founding product engineer, you will collapse that fragmentation by extending the core SDK and API surface that translates any provider into a single, reliable standard. You will architect backend systems in Python and FastAPI, shape the TypeScript interface developers actually touch, and ship the infrastructure that enterprise teams depend on to route LLM traffic across AWS and Azure.

What we’re looking for
  • 5 to 7 years of engineering experience building developer tools, SDKs, or complex API integrations.
  • Deep fluency in Python and FastAPI for backend services, plus competency in TypeScript.
  • Proven experience wiring REST APIs to cloud infrastructure on AWS or Azure.
  • Strong bias toward shipping functional code over theorizing about architecture in an early-stage environment.
  • Comfortable working on‑site in San Francisco alongside a tight, focused team.
  • Must be based in the United States.
Tech stack

Python, FastAPI, TypeScript, OpenAI, AWS, Azure, REST API, Git

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