Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Founding Engineer

AI software startup

The Role

Raydar is recruiting for this role on behalf of our client. Join as a Founding Engineer with ownership across the web platform. The role combines implementation with substantial influence over product decisions and roadmap priorities.

What You'll Do
  • Build frontend, backend, and infrastructure for a self-serve web product.
  • Develop tools for marketing, launch, and localized video workflows.
  • Integrate LLM agents and creative-generation pipelines.
  • Work with leadership on product direction and technical decisions.
  • Deliver customer commitments while prototyping and improving new features.
What We're Looking For
  • 0 to 3 years of relevant full-stack engineering experience, supported by shipped production work.
  • Strong Python and JavaScript skills, including React and Next.js.
  • Experience building across frontend, backend, and infrastructure.
  • Familiarity with LLM applications and agent architectures.
  • Founder, founding engineer, or early-stage startup experience.
  • Ability to explain technical decisions and contribute independently to product direction.
Bonus Points
  • Experience with creative software or generative AI products.
  • RLHF or human-in-the-loop learning systems experience.
Location And Work Model
  • San Francisco, California, United States.
  • Five days per week in the office.
Compensation, As The Posting Describes It
  • Equity: Competitive equity.
  • Daily lunch and dinner.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Founding Engineer in San Francisco, CA vacancy
  • $150k - $200k

     ...We are hiring on behalf of our client. An elite, stealth-stage hardware company based in San Francisco who is seeking a Founding Electrical Engineer to help design and build a first-of-its-kind autonomous circuit board fabrication platform. The client's technology is... 
    Suggested
    Full time
    Work at office

    MLabs

    San Francisco, CA
    2 days ago
  •  ...Employment: Full-time / Permanent Industry: Robotics / Electronics / Hardware About the Role We are looking for a Founding Electrical Engineer to join an early-stage engineering team developing a fully autonomous PCB fabrication machine . You will work... 
    Suggested
    Permanent employment
    Full time

    Join

    San Francisco, CA
    1 day ago
  • $170k - $200k

     ...computer interaction. We are a team of passionate researchers and engineers developing technology that doesn't just solve today's...  ...interacts with digital devices. About the role As Axion's Founding Electrical Engineer, you will own the electrical stack. You'll... 
    Suggested
    Contract work
    Work at office

    Woven

    San Francisco, CA
    1 day ago
  •  ...MLabs in San Francisco, CA, is seeking a Founding Electrical Engineer to design and build a first-of-its-kind autonomous circuit board platform. You will own custom electronics, firmware, and system integration in a highly hands-on founding role. As a founding team... 
    Suggested

    Jobleads-US

    San Francisco, CA
    3 days ago
  •  ...About the Role Join a recently funded founding team as its first hardware engineer, taking a prototype device from concept through production. You will own the hardware journey, from board design and manufacturing through quality assurance, and help deliver a reliable... 
    Suggested
    Visa sponsorship

    Jobleads-US

    San Francisco, CA
    1 day ago
  •  ...human approval, and drives systems it was never given an API for. About the Role: This is a backend- and systems-heavy founding engineering role where \"full-stack\" means owning the product and system end-to-end. You'll build the workflow engine for long-running... 
    Full time
    H1b
    Work at office
    Visa sponsorship
    Monday to Friday

    Jobleads-US

    San Francisco, CA
    2 days ago
  • $70k - $80k

     ...About the Role Join an early-stage consumer AI hardware team as its Founding Hardware Engineer. You will own the hardware from the next board revision through production, helping develop a compact wearable for private interaction with computers. The device is at the... 
    Full time
    Relocation
    Visa sponsorship

    Clera

    San Francisco, CA
    6 hours ago
  •  ...Clera in San Francisco, CA seeks a hands-on hardware engineer to own the hardware journey from concept to scalable production. You will...  ...deliver a reliable device. You\'ll collaborate closely with the founding team to move prototypes into production, optimize power... 

    Jobleads-US

    San Francisco, CA
    1 day ago
  • $160k - $200k

     ...Job Description Job Description About the Role This is a founding engineering role at an early-stage hardware-tech company building AI-powered tools for electronics design. You will own real client PCB projects end-to-end while working side by side with a software... 
    Relocation

    Clera

    San Francisco, CA
    8 days ago
  •  ...As a Founding Engineer, you will work directly with the founders to build production-grade multi-agent systems, backend infrastructure, and financial data systems that power research and live trading. What You’ll Do Technical Development – Design and ship new features,... 

    Conviction

    San Francisco, CA
    16 hours ago
  • $250k

     ...transferred to us in real time. The company is bootstrapped and founded by a former startup and venture capital attorney. Sixteen...  ...reply rate. About the Role This is the company’s first engineering hire, reporting directly to the Founder, who is currently the... 
    Full time
    Casual work
    Work at office
    Immediate start
    Remote work
    Relocation

    Ersilia

    San Francisco, CA
    3 days ago
  •  ...and the US. The role You will be one of the first three engineers, and the first ones hired. This is a CTO-calibre seat: you set...  ...Zero-to-one experience: founder, technical co-founder, CTO, or a founding or very early engineer at a high-growth startup An... 
    Internship
    Relocation
    Relocation package

    Techtree

    San Francisco, CA
    1 day ago
  •  ...researcher who has spent his entire career in enterprise AI, leading engineering teams from seed through Series C. The broader team includes...  .... We hold a high bar of excellence that starts with the founding team. Background Deploying truly impactful AI Agents today requires... 

    Fragment

    San Francisco, CA
    16 hours ago
  •  ...strategic operators. Now we need to build fast enough to match customer demand. The Role This is not a typical engineering role. You’ll be our founding engineer, with an outsized role in how the product, company, and engineering culture evolve. You’ll write code,... 

    Praxis

    San Francisco, CA
    1 day ago
  • $350k

     ...consistent and personalized across all channels. Reverse engineering legacy healthcare systems that don’t have public APIs to integrate...  ...who desperately need them. We’re looking for exceptional founding engineers to help us realize this ambition. If you’re an... 
    Contract work
    Night shift

    Alleviate Health

    San Francisco, CA
    1 day ago
  • $150k - $250k

     ...the company | Founding Engineer | San Francisco | ONSITE | Full-time | $150K-$250K + 1-3% equity Hedge is an AI-native insurance company. We started as a wholesale brokerage for specialty commercial insurance, where AI agents do most of the work of placing policies:... 
    Full time
    Work at office

    United States Digital Space LLC

    San Francisco, CA
    1 day ago
  • $180k - $230k

     ...(CTO) and Chirag (CEO) are the team today. You'd be the second engineer: real-time voice, generative UI that redraws itself based on who...  ...without being asked. Comp Base: $180-230K Equity: Founding-caliber Location: In-person, San Francisco Process 4... 
    Live in
    Work at office

    HOBBES Inc

    San Francisco, CA
    4 days ago
  • $175k - $225k

     ...About the Role Join a fast-moving, early-stage consumer AI startup as a Founding Engineer — a rare, high-impact position working directly alongside the founder. This is a true 1-of-1 opportunity to shape both the product and engineering culture from the ground up.... 
    Remote work
    Visa sponsorship

    Clera

    San Francisco, CA
    4 days ago
  • $180k - $280k

     ...About the Role This is a founding engineer role at an early-stage AI startup building intelligent agent platforms for top-tier insurance carriers. You will own large swaths of the product end-to-end, working at the intersection of LLMs, unstructured data, and complex... 

    Wintermeyer Ventures

    San Francisco, CA
    1 day ago
  • $150k - $250k

     ...AgentMail is building the identity and communication infrastructure for AI agents, starting with email. We are looking for a Founding Engineer with backend and infra focus to architect systems for agents as the end users. Responsibilities: Design APIs that are... 
    Work experience placement
    Internship

    AgentMail

    San Francisco, CA
    16 hours ago
  •  ...connections will form the foundation of the agentic internet – and Caylex will be the infrastructure powering it. The Role As a Founding Engineer, you’ll play a central role in shaping both our product and engineering culture. You will: Work full-stack across... 
    Full time
    Work at office

    Caylex

    San Francisco, CA
    1 day ago
  •  ...Founding Engineer (Full Stack) Location: San Francisco Bay Area Type: Full-Time Compensation: Competitive salary + meaningful equity (founding tier) Backed by 8VC, we're building a world‑class team to tackle one of the industry’s most critical infrastructure... 
    Full time

    Fabrion

    San Francisco, CA
    4 days ago
  •  ...A cracked, early-career builder with 2 to 8 years of real experience who has already done zero to one: a founding or very early engineer at a strong AI-native or YC startup, or an ex-founder or ex-CTO who is now back to building. They learn unusually fast and have a clear... 
    Full time
    Internship
    Live in

    Niulix

    San Francisco, CA
    1 day ago
  • $150k - $250k

     ...The opportunity Hedge is hiring a founding engineer to build the agents that run an insurance company and the infrastructure that lets them scale. You’ll build systems that read messy submissions, chase missing information, navigate carrier requirements, and move accounts... 
    Work at office

    Hedge (YC P26)

    San Francisco, CA
    2 days ago
  •  ...tl;dr: This is a 1 of 1 role. We're looking for a founding engineer to work alongside a Thiel Fellow founder as employee #1 - with 5X more equity than most "founding engineers". About Empathic “…but I tell you all today, I would rather die a man than live for all eternity... 
    Internship
    Work at office

    Empathic

    San Francisco, CA
    16 hours ago
  •  ...candidate profiles across active roles and use resumes/profiles to understand which backgrounds may be a fit. THE ROLE As a Founding Engineer, you may work on projects that require strong execution, communication, analytical judgment, and the ability to move quickly... 

    Career-Launch.net

    San Francisco, CA
    16 hours ago
  •  ...YCombinator and other top investors, and already working with CAT, John Deere, Bobcat, and other top OEM dealers. The Role Founding product engineer hire. You own the product - designing the infra, building the product, handling customers relationships and onboarding.... 

    chasi-ai

    San Francisco, CA
    16 hours ago
  • $170k - $250k

     ...Healthcare AI · Founding Team · San Francisco $170K – $250K + 0.5–1.5% Equity SF · Remote-Flexible $5M Raised · Tier-1 VCs 2–4 Founding Engineers No Visa Sponsorship AI Agents Replacing Manual Healthcare Operations A well-funded, early-stage AI startup founded... 
    Internship
    Remote work
    Visa sponsorship
    Relocation package
    Flexible hours

    Aionia Group

    San Francisco, CA
    2 days ago
  •  ...Origamics AI · Founding team · Full-time We’re hiring the first engineers to join the founders. Not employee #20. Not “early.” Founding. What we do The technology used to design boards and electronics is some of the most complex in existence, and it hasn’t changed much... 
    Full time
    Immediate start

    Origamics

    San Francisco, CA
    4 days ago
  •  ...180 LPA. Min Experience: 1 years. Location: San Francisco Bay Area. JobType: full-time. We're looking for a highly motivated Founding Engineer to join us at the ground floor and help build our product from zero to one. This is a hands-on role for someone who thrives in... 
    Full time
    Weekday work

    Weekday AI (YC W21)

    San Francisco, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Founding Engineer. Be the first to apply!