Apolloresearch5mo ago

Full-stack Software Engineer (Research team)

London,LondonFull-timemid

OtherSoftware EngineerFull Stack Software EngineerSoftware Engineering

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Quick Summary

Overview

Application deadline: We are conducting interviews actively and aim to fill this role as soon as we find someone suitable. ABOUT THE OPPORTUNITY We’re looking for Full-stack Software Engineers who are excited to build tools for frontier AGI safety research, e.g.

Technical Tools

anthropicpythonreact

Application deadline: We are conducting interviews actively and aim to fill this role as soon as we find someone suitable.

ABOUT THE OPPORTUNITY

We’re looking for Full-stack Software Engineers who are excited to build tools for frontier AGI safety research, e.g. building and maintaining evals libraries and tools for monitoring and controlling our own LLM traffic.

REPRESENTATIVE PROJECTS

Your main objective is to develop tooling for analyzing model evaluation results. Here is a list of features that you might build and ship in your first 6 months:

- LLM-powered search that finds interesting fragments in evaluation transcripts

- Comparison views that show how conversations and scores differ between two evaluation runs

- Ability to view and analyse conversations with coding agents (Cursor, Claude Code, etc.) in addition to evaluation transcripts

- Results streaming for evaluations that are currently being run

- Collaborative editing of evaluation logs that automatically updates metrics and other derived data.

Think of this as developing an “IDE for evaluations”.

Besides this, here are example auxiliary projects which you might do:

- Automated evaluation pipelines to minimize the time from getting access to a new model for pre-deployment testing to analyzing the most important results and sharing them.

- LLM agents and MCP tools to automate internal software engineering and research tasks, with sandboxes to prevent major failures

- Telemetry API and instrumentation of our existing tools, allowing us to monitor usage and improve reliability

- Upstream improvements to the Inspect framework and ecosystem, e.g. support for evaluating modern agentic scaffolds.

Balance between moving quickly and creating robust and performant software

Lead the development of major features from ideation to implementation

Support the entire user journey from running the evaluation to finding interesting results to analysing the results to producing reports and papers

Make the software configurable and extensible, so that users can adapt it for their needs

Collaboratively define and shape the software roadmap and priorities

Establish and advocate for good software design practices, codebase health, and coding agent practices

Work closely with researchers to understand what challenges they face

Work closely with the product team to create solutions that satisfies both our researchers and external customers

You must have experience writing production-quality Python and React code

We value candidates from diverse backgrounds and recognise that candidates may demonstrate their skills in different ways.

For example, we might be impressed if you have:

Led the development of a successful software tool or product over an extended period (e.g. 1 year or more)

Started and built the tech stack for a company, e.g in a start-up

Worked your way up in a large organisation, repeatedly gaining more responsibility and influencing a large part of the codebase

Authored and/or maintained a popular open-source tool or library

Placed in a prestigious programming competition (IOI, ICPC, etc.)

5+ years of professional software engineering experience

The following would be a bonus:

Experience designing rich and intuitive UIs, especially for power usersDirect work with researchers or customers

Experience working with LLM agents or LLM evaluations

Interest in AI Safety

We want to emphasize that people who feel they don’t fulfill all of these characteristics but think they would be a good fit for the position nonetheless are strongly encouraged to apply. We believe that excellent candidates can come from a variety of backgrounds and are excited to give you opportunities to shine.

Time Allocation: Full-time

Location: This is an in-person role working out of our London or San Francisco office.

Visa sponsorship: We sponsor visas in both the UK and US. Sponsorship isn't guaranteed for every role or candidate, but if we make you an offer, we'll work with you to find the right visa route.

This role offers market competitive salary, equity, and competitive benefits.

Salary: 100k - 200k GBP (~135k - 270k USD)

Flexible work hours and schedule

Unlimited vacation

Unlimited sick leave

Up to 6 months of paid parental leave

Comprehensive health, dental and vision insurance

Retirement savings with competitive employer matching (e.g. 401(k) for US employees)

Lunch, dinner, and snacks are provided for all employees on workdays

Paid work trips, including staff retreats, business trips, and relevant conferences

A yearly $1,000 (USD) professional development budget