Founding Engineer
$120k - $180kVector Legal
Vector Legal is a modern solution for startup legal: combining a full-service law firm with a purpose-built AI (VectorAI) platform. We're backed by some of the best investors in Silicon Valley, including Y Combinator, Base10, Transpose Platform, and others, to reinvent the way that legal solutions are delivered for Startups.
We support companies across their lifecycle, including complex formations, fundraising and priced rounds, commercial contracting, hiring and team changes, mergers and acquisitions, and dissolutions. VectorAI powers agentic data rooms, proprietary draft/review/negotiate tools, e-signatures, cap table management, legal health checks and more.
Our goal is to make high-quality legal work faster, more scalable, and more cost-efficient.
About the Role
We’re hiring a Full Stack Engineer to build and scale end-to-end web applications across our platform. This role sits at the intersection of product, infrastructure, and applied AI, working closely with a small, fast-moving team to ship features that directly impact customers.
You’ll own development across the stack: from frontend interfaces to backend APIs, data models, and external integrations. The environment is highly iterative, with a strong bias toward shipping, learning, and refining quickly. If you enjoy operating with autonomy, working on ambiguous problems, and building systems from first principles, this role is a strong fit.
What You’ll Do
- Build and maintain full-stack features across frontend (React) and backend (TypeScript APIs)
- Design and implement scalable data models using NoSQL databases
- Integrate third‑party services (e.g., APIs, auth, payments, document systems)
- Work with AI coding tools and agent‑driven workflows to accelerate development
- Own features end‑to‑end, from initial concept through deployment and iteration
- Collaborate closely with product and design to translate requirements into shipped functionality
- Improve system performance, reliability, and developer experience over time
- Contribute to architectural decisions as the platform evolves
Qualifications
- 2–5 years of experience building production‑grade web applications (excluding internships)
- Strong proficiency in TypeScript and modern React frameworks
- Experience designing and working with APIs and distributed systems
- Familiarity with NoSQL databases and flexible data modeling patterns
- Experience in a startup or high‑velocity environment preferred
- Ability to operate independently and take ownership of ambiguous problems
- Strong product intuition and focus on delivering user value
The pay range for this role is:
120,000 - 180,000 USD per year (San Francisco, CA)
#J-18808-Ljbffr- ...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...SuggestedPermanent employmentFull time
$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...SuggestedContract workWork at office$150k - $220k
...Compensation & Benefits $150,000–$220,000 base salary + meaningful founding-team equity. The Stack The stack is TypeScript hosted on... ...to eight people, founded by Girum Tihtina (ex-Meta payments engineering), Maurice Landers III (CTO, Harvey Mudd CS, design-engineer),...SuggestedFull time- ...from across IT and security. Several design partners today and a founding team of three. Full-Time, In-person, San Francisco, CA.... ...About the Role: This is a backend- and systems-heavy founding engineering role where "full-stack" means owning the product and system end...SuggestedFull timeH1bVisa sponsorship
$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...SuggestedInternshipRemote workVisa sponsorshipRelocation packageFlexible hours- ...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....
- ...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...
- ...Builders Build TierZero’s mission is to accelerate software engineering. Today, engineers spend 50-70% of their time not building -... ...market waiting to be reclaimed. Highlights Team : Our founding team is made up of pioneers in AI agents - staff and principal...Work at office3 days per week
- ...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,...
$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 workNight shift- ..., you'll have more success in launching, managing, and rewarding your crypto communities and ecosystems. About the Role: As a Founding Engineer at DeForm, you're not only a teammate, you are an early hire that will set the tone for both the business and culture. You'll...Work at officeFlexible hours
$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...$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 inWork at office$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 workVisa sponsorship- ...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...
$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 timeCasual workWork at officeImmediate startRemote workRelocation$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- ...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...InternshipWork at office
- ...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
$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 placementInternship- ...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 timeWork at office
$150k - $250k
...Agentmail Engineer Opportunity Location: San Francisco, CA Type: Full-time, on-site We are seeing a surge in market demand as... ...for your email, it's email for your AI. We're looking for a founding engineer with strong backend and infra instincts to help build...Full time- ...Founding Engineer As a Founding Software Engineer at Tenzo AI, you'll play a pivotal role in shaping the future of our agents. You will be tasked with building foundational parts of our technology and your contributions will be key to defining the success of our product...Work at office
- ...About Loop Loop AI is a San Francisco–based tech company founded in 2022. We provide a Delivery Intelligence Platform for data-driven... ...first restaurants. About The Role We are looking for a Founding Engineer with 4+ years of backend engineering experience to join our fast...Temporary work
$175k - $250k
...talent at innovative companies. Our team is 100% remote and we work with teams across the United States to help them hire. Founding Engineer Location San Francisco, CA / New York, NY On-site role requiring 5 days/week in the office. Compensation $...H1bWork at officeImmediate startRemote workVisa sponsorship- ...universities and turned down millions of dollars of cash/equity to build real products for billions of humans at Ghost. Apply for the founding eng role if you: ~ Use agents to write ~90% of your code ~ Have done exceptional things in the past ~ Have the...
- ...estimate for this role and may vary based on experience and leveling. Job Description About the Role We’re hiring a Founding Engineer to help architect and scale the core platform at Proaction. This is a hands-on, high-ownership role for someone who operates at...
$150k - $250k
...cockpit to run the business. We just raised an oversubscribed 2,5mio angel round in 7 days and are moving at rapid speed. Founding Engineer You'd be the first hire. This is a once-in-a-generation shot to define how service companies get built. You'll own the...Visa sponsorship$100k - $150k
...Founding Engineer We're looking for one engineer who can build. You'll work at the frontier of AI memory, context retrieval, and knowledge infrastructure, and own real surface area from day one. We're two people with years of runway, so you'll have enormous autonomy...H1b$250k - $400k
...Founding Engineer Type: Full-time Compensation: $250-400k base plus generous equity Location: On-site in SF, hybrid, or remote About the Role We're looking for engineers to help us build the infrastructure to clone and gamify the internet. We will cover...Full timeRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Engineer. Be the first to apply!


