PyTorch Engineer
Graphcore is a Bristol-based AI chipmaker (IPU accelerators), a SoftBank subsidiary and a Molten Ventures portfolio company.
Maintainer signals as of 8/14/2026
About Graphcore
Graphcore (graphcore.ai) is a British semiconductor company building Intelligence Processing Units (IPUs) for AI workloads. Founded in Bristol in 2016, it was acquired by SoftBank in 2024. It is a portfolio company of Molten Ventures.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and maintain the software layer connecting Graphcore accelerators with machine learning frameworks. You will improve PyTorch performance, design features, support users, review code, contribute to documentation and upstream communities, and manage quality and delivery across a complex codebase.
Requirements
- Strong software engineering skills
- Python development experience
- Commercial C++ application development experience
- Experience with ML kernels, compiler development, ML frameworks or computationally intensive engineering
- Ability to coordinate complex technical tasks with cross-team dependencies
- Clear communication
- Ownership
- Curiosity about high performance software
Responsibilities
- Build the software layer connecting Graphcore accelerators with machine learning frameworks
- Improve PyTorch performance
- Design new features
- Support users running workloads at scale
- Maintain core code
- Review code changes
- Contribute to documentation and upstream communities
- Manage quality, complexity and delivery
Benefits
- Flexible working
- Comprehensive healthcare and dental cover
- Phantom equity
- Fully funded Medicover gym card
- Death and disability insurance
- 4% employer retirement contribution
- Employee Assistance Programme