True Talent Solutions Partners

Full Stack Engineer

San Francisco
Salary
$230,000 - $300,000 annually
Level
Mid
Work type
On-site · San Francisco
Visa
Sponsors visas

Open. First seen 1 November 2026.

Apply on the company's site →

About the role

About the Role

Join a product engineering team building software that helps organizations improve the reliability of AI agents in production. This backend-leaning full-stack role combines customer discovery with hands-on product development, from APIs and data models to polished user-facing workflows.

What You'll Do

  • Build product experiences for agent investigations, evaluation workflows, trajectory debugging, verification, and replay.
  • Own problems end-to-end by learning from customers, defining solutions, shipping them, and iterating based on feedback.
  • Develop APIs, data models, internal systems, and product surfaces across the stack, with an emphasis on backend engineering.
  • Build systems that support large-scale investigations of production traces.
  • Develop platform capabilities such as workspaces, permissions, billing, usage, SDKs, and terminal-first developer experiences.
  • Work with AI teams to understand agent failures and translate those insights into product improvements.

What We're Looking For

  • Five to eight years of full-stack product engineering experience, with a backend-leaning profile and a track record of shipping production software end-to-end.
  • Strong TypeScript and React or Next.js skills, plus experience with Python or Node.js.
  • Experience building polished product interfaces, designing clean APIs, modeling data, and debugging production issues across the stack.
  • Hands-on experience with AI agents, LLM-powered products, or agentic systems, including familiarity with LLM APIs, evaluation or debugging tools, or agent architectures.
  • Ability to work directly with customers and use their needs to inform product decisions.
  • Strong computer science fundamentals and experience delivering high-quality software in a product-focused environment.

Compensation & Benefits

Base salary: $230,000 to $300,000 annually. Visa sponsorship is available.

Location

On-site in San Francisco, California, United States.

What this role asks for

Particular to this role

Next.js

Rare in True Talent Solutions Partners's other 128 open postings.

Standard for full stack roles

JavaScript · Node.js · Python · 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 129 open in Client Roles. 129 were posted in the last 30 days, including 6 lead roles: the team is hiring the people who run it too.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (71 of 129), LLM (45 of 129), TypeScript (42 of 129), React (37 of 129), AWS (29 of 129), Machine Learning (28 of 129), JavaScript (26 of 129)

OTHER ROLES ON THIS TEAM

From the team and dates on True Talent Solutions Partners's own job board.

Posting history

Reposted once since 25 October 2026: a posting for this role in San Francisco was taken down and the role was posted again.

  • 1 November 2026 – open (this posting)
  • 25 October 2026 – closed 28 October 2026

Salary context

38 other open postings titled Full Stack Engineer state a salary: median USD 150,000 to USD 198,000 a year.

See Full Stack Engineer salaries in San Francisco →

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