Staff Software Engineer - ML Kernels & Runtime

Salary Range: PLN 350,700 - 474,400 PLN Subject to alignment to the responsibilities and duties of the role About Graphcore  At Graphcore, we’re building the future of AI compute. We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale. As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem. To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world. We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence. Job Summary     As the Staff Software Engineer,   you will be responsible for the development of new and support existing kernels for liner algebra operations on a new generation of AI hardware. You will p rovide technical leadership within the team, helping to define approaches, review designs, and guide complex engineering decisions. The Team   This is an exciting opportunity to join an expanding team at Graphcore. Our ML Kernels & Runtime team are 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++   Provide technical leadership within the team, helping to define approaches, review designs, and guide complex engineering decisions Own performance and correctness - add microbenchmarks, regression tests,  numerics  validation   Profile and optimise across for next generation of AI hardware - threading, cache locality, memory layout, and kernel launch efficiency.   Debug issues, resolve bugs and  generally improve  the quality and functionality of the product   Actively engage in and support Agile ways of working within the team   Mentor colleagues within the team, sharing knowledge and providing guidance where appropriate   Candidate Profile  Essential   Excellent programming and scripting skills using C++ and Python   Understanding of processor architectures and profiling on Linux   Proven track record of technical leadership, including leading technical work, influencing engineering direction, mentoring others, and driving high-quality delivery Ability to operate effectively at Staff level, balancing hands-on implementation with broader technical ownership and team impact Possess excellent written and oral communication skills,  good work  ethics, high sense of  team-work   Desirable   Strong command of algorithmic performance - vectorisation, memory hierarchy, threading, lock-free patterns   Experience testing numerical/performance-sensitive code Hands-on with reproducibility/determinism, tolerance design, and benchmarking Hands-on with at least one BLAS/DNN stack and able to read/extend kernels   Comfort with CPU micro-optimisations and numerical stability/trade-offs across FP32/FP16/BF16/FP8   Experience integrating native code into  PyTorch  or similar (custom ops, extensions, dispatch keys)   ABI/API stability and packaging  on Linux  system ( manylinux , wheels)   Benefits In addition to a competitive salary, Graphcore offers annual leave policy, medical and dental health plans, a gym card, and employee pension (matched up to 4%). We review our benefits on a yearly basis to ensure we offer a valuable and rewarding benefits programme to our employees. 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.