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
$150k
...Job Description Job Description About the Role This is a founding engineering seat at a Y Combinator–backed consumer wearable startup building hardware at the intersection of biometrics, emotional intelligence, and on-device inference. The team is small, the product...SuggestedContract workRemote work$120k - $190k
...and compliance workflows — helping paramedics get paid and protecting 911 services across the country. We're looking for a Founding Engineer to join as one of the earliest technical hires. This role blends hands-on, end-to-end engineering with direct customer...SuggestedWork at officeImmediate startRemote work2 days per week3 days per week$7.5k
...Job Description Job Description Founding Engineer - GovTech Location: San Francisco, CA (In-Office) Partnership: EQL Tech has been exclusively retained by a high-growth technology startup to appoint a Founding Engineer to build, from close to zero, the infrastructure...SuggestedWork at officeRelocationVisa sponsorshipRelocation package$500 per month
...DESCRIPTIONThis company handles millions of calls per month and needs an engineer who has worked at that scale before and knows how to build... ...sub-100 milliseconds.You will work on-site directly with the founding team, contributing across architecture, infrastructure, and...SuggestedH1b- ...We’re hiring a Founding Full-Stack Engineer to join our team! This role is full-time in San Francisco at our Presidio office. Gauge helps companies show up in more AI answers. Search traffic is shifting away from Google into AI chat, and companies are figuring out how...SuggestedFull timeWork at officeImmediate startShift work
- ...Parachute is a Y Combinator S25 startup building an agentic trading platform. As a Founding Engineer, you will work directly with the founders to build production-grade agentic systems, backend infrastructure, and state-of-the-art quantitative trading strategies and backtesting...
- ...Blind Bio is solving for. About the Role As an AI‑focused Software Engineer at Double Blind Bio, you will help build and operate... ...research workflows Experience working in early‑stage startups or founding teams Deep expertise in at least one area of the stack (frontend...Worldwide
- ...to automate the repetitive work currently handled manually across emails, spreadsheets and legacy systems. They are hiring a Founding Engineer to work directly with the founders and customers, understand how these businesses operate and build the product from first conversation...
- ...needed. No hand‑holding. No waiting for specs. You're a full‑stack engineer, an AI engineer, and a product engineer in one person. Former... ...impact this role will have. A seat at the table. This is a founding role, you'll shape the product and the company. We're building...
- ...energy, telecom, healthcare, and more. AI is making it easier to ship code; Metalware is making it easier to ship secure code. Founding Engineer We’re looking for founding engineers to drive our product development from the ground floor. You won’t just optimize existing...Weekend work
- ...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...
$140k - $180k
...About the RoleJoin a small, high-velocity founding team as engineer #4, working directly with the CTO and fellow founding engineers at an AI-powered talent acquisition startup in San Francisco. This is a hands-on, high-ownership role where you'll ship features to production...Visa sponsorship$120k - $180k
...Founding Engineer – Staff/Senior Location: San Francisco, CA Type: Full-time, In-person Flowtel is building the next-generation operating system for hospitality, powered by modern AI agents that can handle everything from booking to room service. We just launched, secured...Full time$90k - $140k
...Tldr; Build the human escalation layer that every AI agent will rely on. Founding engineer, full equity band. Agents are now writing the majority of code in Cursor, Claude Code, Codex, and Devin. They draft contracts. They run support. They've crossed the line from demo...- ...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 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 intuitive...Work experience placementInternship- ...platforms. Define Technical Strategy and Culture: You will collaborate closely with the founding team to shape technical strategies, influence product development, and establish our engineering culture and best practices. Proactive Problem Solving: You will drive success by...
$205k - $250k
...tldr: Kiloforge is looking for exceptional generalist founding engineers (full‑stack, AI, etc.) who are scrappy, have taste, and love building things to create the next generational company. what is Kiloforge: We’re building a new kind of company. Kiloforge is a company...- ...This is a foundational role: Sim is hiring our first GTM Engineer to build the company's go-to-market and RevOps infrastructure from... ..., custom internal tools, and data-driven outbound campaigns Found and scale: Set the technical standard and shape the DNA of Sim...Full timeWork at officeImmediate startVisa sponsorshipRelocation package
- ...Career Launch is hiring for this role and related opportunities. Career Launch is hiring candidates for Founding Engineer roles and similar opportunities with fast-moving teams. This is a remote-friendly opportunity for candidates who are analytical, practical, and comfortable...Remote work
- ...About the Role We're looking for founding Machine Learning Engineers (MLEs) to own and improve our core action models end-to-end— the intelligence that powers Composite's proactive automation platform. You'll work at the intersection of LLM inference, browser understanding...
$130k - $150k
...Founding Engineer San Francisco, CA Full-time Hybrid About Shelby Shelby is on a mission to eliminate the friction of relocation for startups and their new hires. Finding a home in a competitive market like the Bay Area is stressful and time‑consuming. We are a tech-enabled...Full timeRelocation$170k - $250k
...Founding Engineer Location: San Francisco, CA (Mission District) Work Arrangement: Full-Time | On-site (5 days/week) Compensation: $170,000–$250,000 Base Salary + Equity (0.25–1.5%) Visa Sponsorship: Available for exceptional candidates About the Company We're building...Full timeImmediate startVisa sponsorship$200k
...products for private market investing. As a Senior Software Engineer on Meridian, you’ll own the technical design and delivery of major... ...sequencing tradeoffs through launch and iteration. This is a founding engineer role on a zero-to-one product with meaningful...Work at office2 days per week$250k
...Founding Engineer (San Francisco Startups | up to $250k+ + equity) Salary: Total compensation up to $250,000+ plus meaningful equity Dex is an intelligent recruiter that helps you run your job search. Tell Dex about your experience, what you want to build or solve, and...$145k - $175k
...Founding GTM Engineer Title of Role: Founding GTM Engineer Location: San Francisco, onsite Company Stage of Funding: Venture-Backed - AI, B2B, Software Development, Enterprise Office Type: Onsite Salary: $145K-$175K Company Description We're...Work 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. The...Remote workVisa sponsorship- ...currently have a desktop IDE that’s loved by tens of thousands of engineers, we’re looking to scale out by building a mobile app, cloud... ...if: You’ve worked at a startup before (bonus points if you’ve founded one) You’re using AI tools actively You take ownership of your...Work at office
- ...About Terac We’re building a search engine for human thought . While you might go to Google to search through the web, you come to Terac... ...major consumer companies. Joining now means being part of the founding team defining the next $100B market. The Role We’re looking for...
- ...company from scratch! About Our Team Our team is a group of five engineers, embodying a ‘small but mighty’ spirit. We are defined by our... ...’ve done this before (we love former founders + early stage founding engineers! All great talent is welcome, of course). Who You Are...Contract work
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