Founding Full-Stack Engineer
- Salary
- $180,000 - $250,000 annually
- Level
- Mid
- Work type
- On-site · San Francisco
- Visa
- Not offered
Open. First seen 29 October 2026.
About the role
About the Role
Join a small engineering team building production AI agents and software for legal workflows. This founding-level role spans the full stack, with the opportunity to shape tools used by legal professionals every day.
What You'll Do
- Build and improve agent systems, including harnesses, evaluations, and interfaces designed for reliable legal work.
- Ship full-stack features across database, backend, and user interface for client applications and legal workspaces.
- Create integrations with messaging, email, document, e-signature, and billing services to automate workflows.
- Improve observability, evaluations, and infrastructure to support trustworthy agents in production.
- Work directly with legal professionals to scope problems, deliver solutions, and incorporate feedback.
What We're Looking For
- Three to seven years of full-stack engineering experience, including developing and maintaining SaaS applications beyond the prototype stage.
- Production experience building agentic systems across user interfaces, integrations, and agent harnesses.
- Strong TypeScript experience across Node.js services and React or Next.js applications, with familiarity with PostgreSQL, tRPC, AWS, and Temporal.
- Good technical judgment when working with AI-generated code, and experience with backend observability.
- Experience in high-growth startup environments and working directly with users to define technical solutions.
- A STEM or computer science background and experience in legal technology or another regulated industry are relevant.
- Must be authorized to work without visa sponsorship.
Compensation & Benefits
Base salary is $180,000 to $250,000 annually, with equity of 0.1% to 0.6%. Visa sponsorship is not available.
Location
On-site in San Francisco, United States.
What this role asks for
Particular to this role
Next.js
Rare in True Talent Solutions Partners's other 126 open postings.
Standard for full stack roles
AWS · JavaScript · Node.js · PostgreSQL · React · TypeScript
Common in full stack postings at any company.
Compared with True Talent Solutions Partners's other open jobs.
The team: Client Roles
This role is one of 123 open in Client Roles. 123 were posted in the last 30 days, including 5 lead roles: the team is hiring the people who run it too.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (70 of 123), TypeScript (46 of 123), LLM (44 of 123), React (37 of 123), Machine Learning (35 of 123), AWS (26 of 123), JavaScript (24 of 123)
OTHER ROLES ON THIS TEAM
- Software Engineer posted Oct 29
- Fullstack Engineer posted Oct 29
- Founding Product Engineer posted Oct 29
- Frontend Engineer posted Oct 29
- Forward Deployed AI Engineer posted Oct 29
- Founding ML Researcher posted Oct 29
- Founding Forward Deployed Engineer posted Oct 29
- Forward Deployed Engineer posted Oct 29
- Member of Technical Staff, Compiler posted Oct 29
- Senior Platform Engineer posted Oct 29
- Founding Engineer posted Oct 29
- Founding AI Engineer posted Oct 29
- AI Scheduler posted Oct 29
- Product Manager, Supply Chain posted Oct 29
- Founding Full-Stack Engineer posted Oct 29
- Mid-Senior Product Engineer posted Oct 29
- Founding Forward Deployed Engineer posted Oct 29
- Founding Engineer posted Oct 29
- Product Manager, Product Growth posted Oct 29
- Software Engineer, iOS posted Oct 29
- Electrical & Computer Engineer posted Oct 29
- Full Stack Software Engineer posted Oct 29
- Founding Backend Software Engineer posted Oct 29
- Senior Forward Deployed Engineer, Operate posted Oct 29
- Founding AI Agent Engineer posted Oct 29
- Software Engineer, Full Stack posted Oct 29
- Senior Software Engineer, Core Systems posted Oct 29
- Mid/Senior Full Stack AI Engineer posted Oct 29
- Engineering Lead posted Oct 29
- Forward Deployed Product Manager posted Oct 29
- Director of Engineering posted Oct 29
- Founding Senior Engineer posted Oct 29
- Product Engineer posted Oct 29
- Software Engineer posted Oct 29
- Robotics Software Engineer posted Oct 29
- Founding Research Engineer, Robot Learning posted Oct 29
- Machine Learning Infrastructure Engineer posted Oct 29
- Senior Platform Security Engineer posted Oct 29
- Software Engineer, Mid-Level to Staff+ posted Oct 29
- Senior Security Engineer posted Oct 29
- Head of Software Architecture, Embodied AI Platform posted Oct 29
- AI Solutions Consultant posted Oct 29
- Agent Deployment Engineer posted Oct 29
- Lead AI Engineer posted Oct 29
- Member of Technical Staff, Applied ML posted Oct 29
- Founding Engineer posted Oct 29
- Member of Technical Staff, Applied Researcher posted Oct 29
- Agent Product Engineer posted Oct 29
- Forward Deployed Engineer posted Oct 29
- Product Engineer, AI posted Oct 29
- Senior Product Manager, Staffing and AI Agents posted Oct 29
- Founding Product Engineer posted Oct 29
- Senior Software Engineer, Backend posted Oct 29
- Sales Engineer posted Oct 29
- Forward Deployed Engineer posted Oct 29
- Founding Engineer, Applied AI posted Oct 29
- Forward Deployed Engineer posted Oct 29
- Member of Technical Staff, ML Systems posted Oct 29
- Product Lead posted Oct 29
- Software Engineer, C++ Systems posted Oct 29
- Founding Engineer posted Oct 29
- Founding Forward Deployed Engineer posted Oct 29
- Staff Product Manager posted Oct 29
- Lead Product Engineer posted Oct 29
- Machine Learning Engineer posted Oct 28
- Forward Deployed Engineer posted Oct 28
- Senior Solutions Engineer, Digital Native and Mid-Market posted Oct 28
- Founding Product Engineer posted Oct 28
- Senior Product Manager posted Oct 28
- Mechanical Design Engineer posted Oct 28
- Member of Technical Staff, Agent Platform posted Oct 28
- Senior Security Engineer posted Oct 28
- Software Engineer, Infrastructure posted Oct 28
- Forward Deployed Software Engineer, Tactical Edge posted Oct 28
- Senior/Staff Software Engineer posted Oct 28
- Software Engineer, RL Environments posted Oct 28
- Founding Backend & Infrastructure Engineer posted Oct 28
- Solutions Engineer posted Oct 28
- Product Engineer, Scraping posted Oct 28
- Senior Software Engineer, Customer Studio Backend posted Oct 28
- Founding Reinforcement Learning Engineer posted Oct 28
- Senior Quantitative Developer posted Oct 28
- Senior Software Engineer posted Oct 28
- Member of Technical Staff posted Oct 28
- Founding Forward Deployed Engineer posted Oct 28
- Senior Engineering Manager posted Oct 28
- Full-Stack Software Engineer posted Oct 28
- Software Engineer, Security posted Oct 28
- Founding Product Designer posted Oct 28
- Software Engineer, Edge AI Systems posted Oct 28
- Senior Software Engineer, Distributed Systems (Core) posted Oct 28
- Agent Deployment Engineer posted Oct 28
- Technical Product Manager posted Oct 28
- Engineering Manager, Agents posted Oct 28
- Security Lead posted Oct 28
- Founding Fullstack Engineer posted Oct 28
- Lead Platform Engineer posted Oct 28
- Software Engineer posted Oct 28
- Senior/Staff Product Engineer, Applied AI posted Oct 28
- Lead Software Engineer, Platform posted Oct 28
- Applied AI Engineer posted Oct 28
- Founding Member of Technical Staff, Markets posted Oct 28
- Senior / Staff Software Engineer, Infrastructure posted Oct 28
- Founding Product Designer posted Oct 28
- Data Engineer, Data Product posted Oct 27
- Member of Technical Staff, Full Stack posted Oct 27
- Electrical Engineer posted Oct 27
- Lead Platform Engineer posted Oct 27
- Founding PLM Solutions Engineer posted Oct 27
- Backend Infrastructure Engineer, Anti-Bot posted Oct 27
- Principal Software Engineer, Perception posted Oct 27
- Senior Software Engineer, Design posted Oct 27
- Founding Software Engineer posted Oct 27
- Forward Deployed Engineer posted Oct 27
- Software Engineer posted Oct 27
- Technical Product Manager posted Oct 27
- Design Engineer posted Oct 27
- Chief Product Officer posted Oct 27
- Research Crawling Engineer posted Oct 27
- Forward Deployed Engineer, Infrastructure posted Oct 27
- Senior/Staff Software Engineer posted Oct 27
- Software Engineer, AI Agents posted Oct 24
From the team and dates on True Talent Solutions Partners's own job board.
Posting history
Reposted 2 times since 25 October 2026: a posting for this role in San Francisco was taken down and the role was posted again.
- 29 October 2026 – open
- 29 October 2026 – open (this posting)
- 28 October 2026 – closed 29 October 2026
- 28 October 2026 – closed 29 October 2026
- 25 October 2026 – closed 26 October 2026
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