Senior Software Engineer
- Pay: $120 / hour
- Contract: Contract
- Who can apply: Open worldwide
- Posted Oct 23, 2026
In short
Mercor is looking for 8 Senior Software Engineers to work on a project with a leading AI research lab. It is a remote freelance job paying 120 USD per hour. It may suit you if you already work as a senior engineer and contribute to open-source software.
What you will do
- Use your open-source engineering experience on real software engineering work.
- Work on a project for a leading AI research lab.
- Bring your senior-level skills to everyday engineering tasks in a freelance setting.
What you need to apply
- Work as a Senior, Staff or Principal Software Engineer, or in an equivalent senior individual contributor role.
- Have at least 5 years of experience.
- Have merged pull requests or commits to open-source projects in the last 6 months.
- Maintain or contribute to projects with real adoption, such as 100+ GitHub stars or clear package usage.
Who can apply
The job is open worldwide, with no country restriction stated, so you can apply from anywhere. The contract is freelance.
My tip
Show your open-source work clearly: link to your merged pull requests from the last 6 months and to the projects that have 100+ GitHub stars or clear package usage, so we can check your experience quickly.