Software 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 develop, test, and document a Collectives Communication Library for new AI hardware accelerators. You will collaborate on features, troubleshoot complex issues, integrate hardware with the AI ecosystem, and participate in agile development within a scrum team.
Requirements
- Experience in software development using C++
- Experience with Python and C programming
- Good problem-solving skills and ability to debug complex issues
- Experience with Boost.Test and Google Test
- Experience with CMake, Make, and Ninja
- Strong understanding of Git
- Experience with RDMA networking libraries such as libibverbs or libfabric
- Knowledge of multithreading and parallel computing
- Knowledge of inter-process communication techniques
- Experience with CI/CD pipelines
- Experience with communication libraries such as NCCL or MPI
- Knowledge of machine learning frameworks such as PyTorch
- Knowledge of modern C++ standards 17/20
Responsibilities
- Implement the Collectives Communication Library
- Test the Collectives Communication Library
- Document the Collectives Communication Library
- Collaborate with teams to design and test features
- Troubleshoot and resolve complex technical issues
- Integrate new hardware with the AI ecosystem
- Participate in agile development
Benefits
- Annual leave
- Medical health plans
- Dental health plans
- Gym card
- Employee pension matched up to 4%