Member of Technical Staff - Prime Agent

Prime Intellect is building the open superintelligence stack: the infrastructure frontier AI labs build internally, made available to every ambitious AI team.

Our platform, Lab, unifies compute, environments, evaluations, secure sandboxes, high-performance training, and deployment into one full-stack system for post-training at frontier scale - from SFT and RL to tool use, agent workflows, and continuously improving production models. We are building open frontier AI: open-source models trained end to end for long-horizon tasks like autonomous research, and the full-stack platform our own research team uses to build them. The next generation of AI companies, enterprises, and research teams do not just need more GPUs. They need the ability to turn their own workflows, tools, data, and feedback loops into superintelligence they own.

Role Impact

You'll help build Prime Agent, our open-source coding and research agent. This is a generalist software engineering role spanning product development and the underlying agent systems. You'll own features end-to-end, from design through deployment and monitoring, and ship at the pace of an early-stage company tackling one of the most important problems in AI.

This role is based in our San Francisco office. Candidates must be based in San Francisco and work in person. This is not a remote role and is not open in other locations.

Core Responsibilities

Build intuitive interfaces for working with agents and managing their tasks

Own features end-to-end, from design through deployment and operation

Work with users to understand their needs and turn feedback into product improvements

Work closely with teams across the Prime ecosystem to build cloud agents, self-improving loops, and integrations for traces and post-training

Work closely with researchers to turn new agent capabilities into reliable product features

Contribute to internal tooling, automation, and developer experience improvements

Technical Requirements

Strong software engineering skills in TypeScript and Python

Experience building developer tools, dashboards, platform products, and working with agent harnesses

Strong product judgment and attention to user experience, with the ability to turn complex capabilities into intuitive workflows

Experience building reliable systems with asynchronous execution and real-time interactions

Awareness of what's happening at the frontier - new models, agent capabilities, and tooling - and the ability to translate that into product decisions

A bias toward shipping, ownership of production code, and pragmatic engineering judgment

Nice to Have

Experience building coding agents, agent harnesses, or developer tools powered by LLMs

CLI or terminal UI development

WebSocket / real-time systems experience

Open-source contributions

Prior experience at an early-stage startup

What We Offer

Cash compensation range of $150,000–$300,000 with significant equity incentives

In-person collaboration with the Prime Agent team in our San Francisco office

Full visa sponsorship and relocation support

Professional development budget for courses and conferences

Regular team off-sites and conference attendance

Opportunity to shape the future of open AI development

You'll join a team of experienced engineers and researchers working on cutting-edge problems in AI infrastructure. We believe in open development and encourage team members to contribute to the broader AI community through research and open-source contributions.

We value potential over perfection - if you're a strong generalist engineer who is passionate about democratizing AI development, we want to talk to you.