Founding Full-Stack Engineer ($180K–$250K + Equity) AI-Native Law Firm
CoffeeSpaceSan Francisco, CAposted 14h ago
- PayUSD / yr
- $180k – 250k
- Where
- San Francisco, CA
- Posted
- Oct 12
- 14 hours ago
- Type
- Full-time
- Setup
- On-site
EMPLOYMENT
Full-time
COMPENSATION
$180k - 250k/yr
ARRANGEMENT
On-site
At a glance
Build agentic legal systems end to end, shipping reliable full-stack tools, integrations, and evaluations that lawyers use daily to automate legal workflows.
Summarized by AI from the original posting
What you'll do
- Build and iterate on agentic systems end-to-end
- Ship full-stack application features from database to UI
- Develop integrations with Slack, email, and document/e-signature services
- Enhance observability, evaluations, and infrastructure for trustworthy, reliable agents
- Work directly with lawyers to scope problems and ship solutions
Requirements
- 013-7 years of experience in full-stack development
- 02Proficiency in TypeScript, Next.js, React, tRPC, Node.js, PostgreSQL, AWS, and Temporal
- 03Strong ability to work across the stack, from database to UI
- 04Comfortable working on-site in San Francisco
Perks
0.1-0.6% equityFounding-level role with significant equityDirect collaboration with end-usersOpportunity to shape a product from its earliest stage
Skills
TypeScriptNext.jsReactTrpcNode.jsPostgreSQLAWSTemporalSlack IntegrationsEmail IntegrationsDocument And E Signature ServicesAgentic Systems
Full description
About the job
This role is being recruited by CoffeeSpace on behalf of an anonymous AI-native law firm building agentic systems for legal services.
We’re identifying a small number of exceptional founding full-stack engineers from our network. If there’s a strong fit, we’ll introduce you directly to the founding team.
Location: San Francisco, California, United States
Compensation: $180K–$250K base + 0.1–0.6% equity
Employment type: Full-time
About the company
This company is an AI-native law firm that uses in-house built tools to deliver better legal services for fast-growing tech companies. The firm has handled over $2 billion in contracts across more than 100 companies. It was founded in 2024 and has raised $9 million in seed funding from notable investors including YC and founders of Reddit, Instacart, Cruise, Dropbox, Gusto, and Runway.
The team is small, consisting of 5 members, and includes an ex-OpenAI advisor, a Harvard-trained lawyer, and an MIT graduate who has scaled machine learning to hundreds of millions of users.
About the role
As a Founding Full-Stack Engineer, you will join a high-impact engineering team and work across the entire stack, from PostgreSQL and Node.js on the backend to React and Next.js on the frontend. You will be responsible for shipping agent harnesses, UIs, and integrations that lawyers use daily.
What You’ll Do
• Build and iterate on agentic systems end-to-end, ensuring reliability for legal sign-off.
• Ship full-stack application features from database to UI, including client-facing surfaces and lawyer workspace tools.
• Develop integrations with platforms like Slack, email, and document/e-signature services to automate legal workflows.
• Enhance observability, evaluations, and infrastructure to ensure agents are trustworthy and reliable at scale.
• Work directly with lawyers to scope problems, ship solutions, and receive immediate feedback.
Why This Role Is Compelling
• Join a founding-level role with significant equity at a company where your work will materially shape outcomes.
• Work in a dynamic environment directly with end-users, allowing for rapid iteration and feedback.
• Be part of a small, high-impact team with the opportunity to shape a product from its earliest stage.
The Ideal Candidate
• 3–7 years of experience in full-stack development.
• Proficiency in TypeScript, Next.js, React, tRPC, Node.js, PostgreSQL, AWS, and Temporal.
• Strong ability to work across the stack, from database to UI.
• Comfortable working on-site in San Francisco.
Next steps
1. Apply via this LinkedIn job post
2. We’ll review and reach out if there’s a strong match
3. If aligned, we’ll introduce you directly to the team
4. If this role isn’t the right fit, we may suggest and make introductions to other high-signal startup roles we’re recruiting for, always with your permission.
A quick note on authenticity
This is a real, active role that CoffeeSpace is recruiting for in close partnership with the hiring team. We don’t post speculative roles and work directly with teams on their actual hiring needs.