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Graphcore is one of the world’s leading innovators in Artificial Intelligence compute.
It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry.
As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone.
Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore enjoys a culture of continuous learning and constant innovation.
Job SummaryAs a Software Engineer you will be responsible for development of new and support existing kernels for liner algebra operations on a new generation of AI hardware.
The TeamThis is an exciting opportunity to join an expanding team at Graphcore. Kernel Engineering team is responsible for delivering high performance compute library to help customers gain the maximum performance from AI hardware.
Responsibilities and Duties- Design and implement kernels for linear algebra and tensor ops (GEMM, batched GEMM, convolutions, reductions, elementwise and fused operations) in C++
- Profile and optimise across for next generation of AI hardware - threading, cache locality, memory layout, and kernel launch efficiency.
- Own performance and correctness - add microbenchmarks, regression tests, numerics validation
- Debug issues, resolve bugs and generally improve the quality and functionality of the product
- Mentor colleagues within the team, sharing knowledge and providing guidance where appropriate
- Actively engage in and support Agile ways of working within the team
Essential:
- Excellent programming and scripting skills using C++ and Python
- Strong understanding of processor architectures
- Possess excellent written and oral communication skills, good work ethics, high sense of team-work
- Love to produce quality work and be a team player
Desirable:
- Strong command of algorithmic performance - vectorisation, memory hierarchy, threading, lock-free patterns, and profiling on Linux
- Hands-on with at least one BLAS/DNN stack and able to read/extend kernels
- Experience integrating native code into PyTorch or similar (custom ops, extensions, dispatch keys)
- Comfort with CPU micro-optimisations and numerical stability/trade-offs across FP32/FP16/BF16/FP8
- ABI/API stability and packaging for Linux distros, manylinux, wheels
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Graphcore Bristol, England Office
Graphcore Headquarters Office
Wine Street, Bristol, United Kingdom, BS1 2PH
