Replay is a time-travel debugger which allows users to record their web sessions and share them with their team, so that anyone can debug and analyze the sessions without having to reproduce issues themselves. Check it out for yourself at replay.io

We aspire to fundamentally change the way teams interact with software so that:

1. Developers get deeper insights into their software and faster bug fixes
2. Non-technical team members find bug reporting more accessible and approachable

Replay is a distributed company, founded by people who have spent many years working on fully distributed teams. We are a young startup with a small and diverse team of dedicated developers, including core maintainers of React and Redux and former employees of Mozilla who worked on the Firefox browser.

We value diversity, passion, kindness, and technical excellence.

The Opportunity

The runtimes that Replay supports are crucial to our success. Our runtime integrations enable us to record and replay everything a process does: network calls, filesystem calls, checking the time, etc. Without runtime integrations, Replay can't record or replay software, and we can't achieve our mission. You will play a key role improving our existing runtime integrations and extending Replay to work with new runtimes.

You Will

• Launch Replay with deep, robust runtime integrations
• Collaborate with engaged, friendly systems-oriented engineers
• Develop tools to test and analyze our runtime integrations
• Write code mostly in C++ and TypeScript
• Work with the team to maintain continuous builds, tests, memory-safe code and a supportive engineering culture
• Mentor other engineers
• Help us recruit a diverse and inclusive team of systems engineers

Examples of things our runtime engineers have done recently:

• Investigate C++ processes that are crashing with no output
• Port a C++ program to Windows
• Fix inconsistencies between a recorded program and a replayed program
• Implement recording for Node programs

About You

• You have previously worked with C++ or another low-level systems language