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

Founding Design Engineer

Happy Robot

About HappyRobot

HappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don't just communicate through voice and email - they make decisions, take action, and run operations autonomously across entire enterprise systems. Born in Y Combinator (S23) and backed by a16z, Base10, Prysm Capital and Eurazeo with over $150M raised, we power critical operations for global enterprises worldwide.

Our platform is battle-tested in the most demanding environments, where AI has real consequences. We started in logistics, built our own voice stack, models, and orchestration layer from the ground up, and are now bringing that infrastructure to every enterprise that runs the real economy. Learn more about our vision in our manifesto.

About the Role

As a Product Designer at HappyRobot, you will own the end-to-end design process for major product surfaces, working closely with PMs, engineers, AI researchers, and leadership. You'll take ideas from early concept to polished implementation-and because you have strong FE knowledge, you'll bridge the gap between design and engineering, ensuring your work ships with accuracy, quality, and care.

This is a highly collaborative, high-impact role where you'll influence strategy, improve user experience, and build delightful interfaces used by teams worldwide.

What You'll Do
  • Lead end-to-end design, turning complex workflows into simple, intuitive experiences.
  • Create UX flows, wireframes, interaction specs, and high-quality UI.
  • Conduct user research, synthesize insights, and validate solutions.
  • Collaborate closely with FE engineers to ensure feasibility, scalability, and accessibility.
  • Produce clean, modular design specs and prototype interactions using modern FE tools.
  • Provide design QA and guidance during implementation.
  • Partner with PMs to shape product strategy and scope.
  • Advocate for user needs and apply design thinking to technical challenges.
Must Have
  • 3+ years experience in product design for SaaS or digital products.
  • Strong portfolio demonstrating UX depth, high-quality UI, and shipped product work.
  • Solid understanding of modern front-end technologies (React, TypeScript, CSS/Tailwind).
  • Ability to prototype interactions using tools like Figma, Framer, or code.
  • High ownership mindset; thrives in fast-paced, ambiguous environments.
  • Excellent communication and collaboration skills.
Nice to Have
  • Experience with AI/ML products or complex systems.
  • Familiarity with design systems at scale.
  • Ability to write production-ready FE code (optional but highly valued).
  • Experience in early-stage startups.
Why join us?
  • Join a world-class team of engineers and builders.
  • Backed by top investors including a16z, Y Combinator, Base10, Prysm Capital and Eurazeo.
  • Have ownership and autonomy of projects and are encouraged to ship.
  • Comprehensive Benefits including healthcare, dental, vision coverage.
  • Competitive salary + equity in a high-growth startup.

Our Operating Principles

Extreme Ownership

We take full responsibility for our work, outcomes, and team success. No excuses, no blame-shifting - if something needs fixing, we own it and make it better. This means stepping up, even when it's not "your job." If a ball is dropped, we pick it up. If a customer is unhappy, we fix it. If a process is broken, we redesign it. We don't wait for someone else to solve it - we lead with accountability and expect the same from those around us.

Craftsmanship

Putting care and intention into every task, striving for excellence, and taking deep ownership of the quality and outcome of your work. Craftsmanship means never settling for "just fine." We sweat the details because details compound. Whether it's a product feature, an internal doc, or a sales call - we treat it as a reflection of our standards. We aim to deliver jaw-dropping customer experiences by being curious, meticulous, and proud of what we build - even when nobody's watching.

We are "majos" Be friendly & have fun with your coworkers. Always be genuine & honest, but kind. "Majo" is our way of saying: be a good human. Be approachable, helpful, and warm. We're building something ambitious, and it's easier (and more fun) when we enjoy the ride together. We give feedback with kindness, challenge each other with respect, and celebrate wins together without ego.

Urgency with Focus Create the highest impact in the shortest amount of time. Move fast, but in the right direction. We operate with speed because time is our most limited resource. But speed without focus is chaos. We prioritize ruthlessly, act decisively, and stay aligned. We aim for high leverage: the biggest results from the simplest, smartest actions. We're running a high-speed marathon - not a sprint with no strategy.

Talent Density and Meritocracy Hire only people who can raise the average; 'exceptional performance is the passing grade.' Ability trumps seniority. We believe the best teams are built on talent density - every hire should raise the bar. We reward contribution, not titles or tenure. We give ownership to those who earn it, and we all hold each other to a high standard. A-players want to work with other A-players - that's how we win.

First-Principles Thinking Strip a problem to physics-level facts, ignore industry dogma, rebuild the solution from scratch. We don't copy-paste solutions. We go back to basics, ask why things are the way they are, and rebuild from the ground up if needed. This mindset pushes us to innovate, challenge stale assumptions, and move faster than incumbents. It's how we build what others think is impossible.

The personal data provided in your application and during the selection process will be processed by Happyrobot, Inc., acting as Data Controller.

By sending us your CV, you consent to the processing of your personal data for the purpose of evaluating and selecting you as a candidate for the position. Your personal data will be treated confidentially and will only be used for the recruitment process of the selected job offer.

In relation to the period of conservation of your personal data, these will be eliminated after three months of inactivity in compliance with the GDPR and legislation on the protection of personal data.

If you wish to exercise your rights of access, rectification, deletion, portability or opposition in relation to your personal data, you can do so through View email address on click.appcast.io subject to the GDPR.

For more information, visit

By submitting your request, you confirm that you have read and understood this clause and that you agree to the processing of your personal data as described.
Vacancy posted 14 hours ago
Similar jobs that could be interesting for youBased on the Founding Design Engineer in San Francisco, CA vacancy
  •  ...We care obsessively about taste: in design, in product, in every detail. We're solving...  ...of billion dollar companies. Design Engineering Video is the most powerful way...  ...touch. It's the product. We're hiring a Founding Design Engineer who lives at that intersection... 
    Suggested

    Cardboard

    San Francisco, CA
    3 days ago
  •  ...slide deck, merchandise, or factory) should communicate the quality and ambition of our company behind it. As Orchard's Founding Design Engineer, you will establish the design function and own design across product, brand, marketing, software engineering, hardware,... 
    Suggested
    Weekend work

    Orchard Robotics

    San Francisco, CA
    4 days ago
  •  ...this is only the beginning. ERPs ran the physical world for half a century. Dryft is powering the next. THE ROLE As Founding Design Engineer , you'll work directly with our CEO, CTO, and customers to build magical user interfaces for our AI Agents. Your... 
    Suggested
    Relocation

    Dryft

    San Francisco, CA
    5 days ago
  • $180k - $220k

     ...Job Description Job Description About the Role This is a founding-level, high-ownership position sitting at the intersection of design and engineering. You'll be the sole bar-raiser for frontend UX across a fast-moving, early-stage B2B SaaS company building an AI-... 
    Suggested
    Remote work

    Clera

    San Francisco, CA
    14 days ago
  • $180k - $220k

     ...Job Description Job Description About the Role This is the founding design engineering seat at a seed-stage AI pricing SaaS startup, meaning you will own the entire frontend design system from day one. The team ships UI quickly with the help of AI coding agents, and... 
    Suggested

    Clera

    San Francisco, CA
    7 days ago
  • Several of our early stage enterprise startups are looking to bring on a Founding Design Engineer as part of their early teams. This is a rare opportunity to join a well funded, founder-led startup at the earliest stages and help build a category defining product from... 

    Greylock Partners

    San Francisco, CA
    3 days ago
  •  ...voice AI behaves in live customer conversations, and measure the impact on real business outcomes. The role We're hiring a founding design engineer to own the experience of BotBot and the system we run the company on. Our products need interfaces for work that... 
    Remote work

    BotBot

    San Francisco, CA
    6 days ago
  • $100k - $150k

     .... Work that used to take teams of lawyers weeks now happens in minutes. YC S24, founded by a former M&A attorney from Kirkland & Ellis and Gunderson Dettmer. We're hiring a design engineer to own how the product looks, feels, and works. You'll design features in Figma,... 

    Mage Legal

    San Francisco, CA
    2 days ago
  • $180k - $250k

     ...cutting edge start up client who is distrusting the hardware engineering design workflow by creating AI training environments that will...  ...high technical stakes. Is excited by the idea of joining a founding engineering team—helping build the function, not just join it... 
    Full time

    80Twenty

    San Francisco, CA
    3 days ago
  • Jinba is seeking a design engineer to own the full visual and interactive experience of its platform. You will build the design system from...  ..., and ship production code with the engineering team. This founding design role shapes how enterprise users interact with AI-native... 

    Nicedesignjobs

    San Francisco, CA
    2 days ago
  • $150k - $250k

    Founding Design Engineer Location: San Francisco, CA (On-site, 5 days/week) Compensation: $150,000-$250,000 Base + Equity (0.4-0.8%) About the Opportunity An early-stage, venture-backed AI startup is seeking a Founding Design Engineer to become its first design-focused... 
    H1b

    HIKINEX

    San Francisco, CA
    2 days ago
  • Circleback is hiring a design engineer in San Francisco to own the product surface end-to-end—from concept to production code. You will ship...  ...and alive, and you will collaborate with engineers and the founding team to steer product direction with a strong emphasis on craft... 

    Circleback

    San Francisco, CA
    3 days ago
  • ABOUT THE ROLE Design engineer who owns the full visual and interactive experience of Jinba's platform. You'll build our design system from...  ...production code alongside the engineering team. This is a founding design role for someone who wants to shape how enterprise users... 

    Nicedesignjobs

    San Francisco, CA
    2 days ago
  • $180k - $220k

     ...built on deep pricing experience from our founding team who have run over 150 pricing...  ...assembled our team of 8 (pricing experts and engineers) to deliver that capability. Our main...  ...Coherence is, and this role owns it: the design tokens, the component library, the frontend... 
    Work experience placement
    Work at office
    Immediate start
    Visa sponsorship
    Flexible hours

    Mondrio

    San Francisco, CA
    2 days ago
  •  ...opportunity. If you’re hungry to take ownership and build systems that matter, this is it. About The Role We’re hiring a Design Engineer to join our founding team in building the future of healthcare compliance AI. You’ll work directly with the founders, owning entire... 
    Night shift

    Readily

    San Francisco, CA
    2 days ago
  • Ch is building Cardboard to transform storytelling and video editing. We’re hiring a Founding Design Engineer who will shape the feel of Cardboard through interactions, animations, and rendering at the intersection of design and engineering. You’ll join a small, fast team... 

    Ch

    San Francisco, CA
    6 days ago
  • Greylock Partners is seeking a Founding Design Engineer to join early-stage enterprise startups as one of the first hires. You will help define the product from day one, shape strategy, and make foundational decisions that influence the company’s direction as you tackle... 

    Greylock Partners

    San Francisco, CA
    3 days ago
  • HIKINEX is seeking a Founding Design Engineer in San Francisco to define the user experience of an AI platform. This role involves owning both design and frontend implementation, focusing on creating intuitive B2B software and AI experiences. The perfect candidate will... 

    HIKINEX

    San Francisco, CA
    2 days ago
  • BotBot in San Francisco is hiring a founding design engineer to own the experience of BotBot and the system we run the company on. The role blends thoughtful UX with implementation, requiring you to ship production code and create reusable components for AI-driven workflows... 

    BotBot

    San Francisco, CA
    6 days ago
  •  ...About the job Founding Product Engineer About the role Success Matcher Recruitment is partnering with our client, the leading shared...  ...contexts, and build solutions independently. Shape Design & APIs: Partner with backend engineers on API contracts while... 

    Success Matcher Recruitment

    San Francisco, CA
    4 days ago
  •  ...Founding Product Engineer Weave (YC W25) is building the definitive platform for understanding and improving how engineering teams work. We...  ...that's great and we want to hear about it! We hope your design sensibilities are passable. The Role As Weave's founding... 
    Immediate start

    Weave, Inc.

    San Francisco, CA
    2 days ago
  •  ...We founded Bild AI to tackle the mess that is blueprint reading, cost estimation, and permit applications in construction. It's a really...  ...Actually use the algorithms, data structures, and system design that you learned Revolutionize how people read blueprints today... 
    Full time
    Work at office
    Relocation

    Bild AI

    San Francisco, CA
    14 hours ago
  •  ...Free lunch and dinners, competitive salary and equity. Flexible health coverage and 401K matching. We're looking for a design engineer who obsesses over how software looks and feels to join us in San Francisco. You'll own the product surface end-to-end-from concept... 
    Flexible hours

    Circleback AI, Inc

    San Francisco, CA
    12 hours ago
  • $120k - $180k

     ...Description Job Description About the Role This is a founding product engineering role at an early-stage AI startup transforming how the...  ...features end-to-end with direct customer engagement. Comfort designing architecture and building products from scratch (0-to-1... 
    Work at office
    Relocation

    Clera

    San Francisco, CA
    8 days ago
  • $150k - $200k

     ...to support and grow America's industrial GDP. We are hiring a founding product engineer to lead core 0-to-1 builds . The successful candidate will own the full-stack product lifecycle : scoping, designing, shipping, and iterating in the field. This role requires travel... 
    Work at office
    Remote work

    The Misch Group

    San Francisco, CA
    16 days ago
  • $200k - $250k

     ...Description Job Description About the Role This is a founding-level product engineering role at an early-stage B2B SaaS startup building an AI-...  ...core to what gets built here. What You'll Do Scope, design, build, and iterate on entire product modules in close collaboration... 
    Relocation

    Clera

    San Francisco, CA
    1 day ago
  • $190k - $210k

     ...well-funded, early-stage fintech startup is looking for a Founding Product Engineer to join a small, senior team building a new kind of collaborative...  ...with a 40,000+ person waitlist. What You'll Do Design, develop, and deliver features, fixes, and improvements... 
    Remote work

    Clera

    San Francisco, CA
    14 days ago
  • $160k - $200k

     ...quickly toward its next stage of growth. Founded 2024 · ~12 people · Industry: B2B SaaS, AI, Fintech The Role As a Founding Engineer, you would join a small, product-minded...  ...Owning product features end-to-end, from design through implementation Contributing to... 
    Full time
    H1b
    Visa sponsorship

    David Joseph & Company

    San Francisco, CA
    5 days ago
  • $200k - $250k

     ...discount governance, and CPQ workflows. We're looking for a Founding Product Engineer to own entire product modules end-to-end, work directly...  ...Financial logic correctness, AI-native tooling, and clean API design are first-class priorities here. What You'll Do Own... 
    Remote work
    Visa sponsorship

    Clera

    San Francisco, CA
    14 days ago
  • Founding Product Engineer — Smart Bricks (USA Launch) Location: San Francisco, CA Type: Full-time Team: Founding Team (USA) Smart Bricks is building the world’s AI-native real estate investment infrastructure. Think of us as Bloomberg + Robinhood for global real estate... 
    Full time

    Smart Bricks

    San Francisco, CA
    4 days ago

Do you want to receive more vacancies?

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