Staff Software Engineer - ML Kernels & Runtime

Salary Range: PLN 350,000 - 474,000 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 a Staff 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 Team  This is an exciting opportunity to join an expanding team at Graphcore. The 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++  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  Experience testing numerical/performance-sensitive code  Hands-on with reproducibility/determinism, tolerance design, and benchmarking  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  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.   Offices: Gdańsk, Pomeranian Voivodeship, Poland (Gdańsk);