Moritz Legal (YC W26) • San Francisco, CA (Hybrid, SoMa) • Full-time • $150K-$200K + 0.1-0.3% equityAbout the RoleWe're looking for a
front-end leaning full-stack engineer to ship features end-to-end across our Next.js and tRPC stack. This is a greenfield product - no legacy migrations, no tech debt to fight. You'll work directly alongside the founders and our design engineer in London to shape product architecture from day one. A central deliverable of this role is making the app beautiful and fully responsive across mobile, tablet, and desktop.
What You'll Do- Build new features end-to-end across the frontend (Next.js 15, React Server Components) and the tRPC API layer
- Own making the app fully responsive across mobile, tablet, and desktop - a central deliverable of the role
- Work closely with our design engineer in London to craft beautiful, functional UI using shadcn/ui and Tailwind CSS
- Design and build backend functionality: tRPC procedures, data models, and integrations with PostgreSQL
- Ensure strong accessibility (WCAG) and quality across browsers
- Contribute tests (Vitest + Playwright) and take part in code review
What We're Looking For- 3+ years of full-stack experience building B2B SaaS products, shipping features end-to-end
- Proficiency in React, TypeScript, and the Next.js App Router
- Experience with tRPC (or similar API layers) and PostgreSQL
- Strong responsive/mobile-first design skills with Tailwind CSS
- Experience with shadcn/ui, Figma, or design-system collaboration
- Testing experience with Vitest, Playwright, or equivalents
- Ability to work autonomously in a fast-paced, early-stage environment without detailed specs
- A true full-stack, growth mindset - not narrowly specialized in only frontend or only backend
Bonus Points- Experience building AI chat interfaces or AI-powered products
- Prior role at a legal tech company (e.g., Harvey, Spellbook, Norm AI)
- Experience at an early-stage startup (seed or Series A)
Education- Computer science or STEM degree (bachelor's or master's), or a strong public GitHub portfolio in lieu of a traditional CS background
Tech StackNext.js 15 • React 19 • TypeScript (strict) • tRPC • Node.js • PostgreSQL • Tailwind CSS • shadcn/ui • next-intl • Vitest • Playwright
Details- Location: San Francisco, CA (hybrid). Based in or willing to relocate to SF.
- Travel: Willingness to travel to the UK or Norway roughly once a month.
- Work authorization: Visa sponsorship is not available. Candidates must have existing work authorization in the US (or UK/EU for our other offices).
- Reports to: Stefan Mandaric (co-founder)
Interview Process- Intro call with Stefan or an engineer (30 min)
- Technical interview (60 min)
- Founder interview (30 min)
