via ats_greenhouse · 22 May 2026 ·22 days ago

Senior Engineer (ML Engineer)

graphcore
Bristol
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<h2><strong>About Graphcore </strong></h2>
<p>At Graphcore, we’re building the future of AI compute.</p>
<p>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.</p>
<p>As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.</p>
<p>To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.</p>
<p>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</p>
<h2><strong>Job Summary </strong></h2>
<p data-start="120" data-end="486">Applicants for this role should have strong experience working with machine learning systems and frameworks, along with a solid understanding of core AI concepts and model behaviour. The role centres on testing, validating, and benchmarking a complex ML software stack, with a particular focus on performance, reliability, and correctness across modern AI workloads.</p>
<p data-start="488" data-end="1009">The ideal candidate is an experienced ML engineer who understands how contemporary models are trained and executed, and who has hands-on experience debugging functional and performance issues in ML systems. This person will be comfortable working with industry-standard frameworks and state-of-the-art models, bringing them up on internal infrastructure, and collaborating closely with software and hardware teams in a technically demanding environment spanning ML frameworks, infrastructure, and AI accelerator hardware.</p>
<h2><strong>The Team</strong></h2>
<p><span data-contrast="auto">The ML QA team is composed of highly skilled software engineers with a strong focus on automation, software quality, and data-driven validation. The team works closely with </span><span data-contrast="none">industry-standard machine learning frameworks and models</span><span data-contrast="auto">, contributing to upstream open-source projects and collaborating across the wider software organization.</span><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":0,"335559740":240}"> </span></p>
<p><span data-contrast="auto">Operating in a fast-paced environment, the team plays a critical role in ensuring reliability, performance, and maintainability across the ML software stack, helping to deliver robust and high-quality products to customers.</span><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":0,"335559740":240}"> </span></p>
<h2><strong>Responsibilities and Duties</strong></h2>
<p><span data-contrast="auto"><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">• Benchmark ML models and frameworks, analysing results to<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">identify</span><span class="NormalTextRun SCXW130785288 BCX4"><span class="Apple-converted-space"> </span>regressions,<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">performance bottlenecks, and correctness issues.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW130785288 BCX4"><span class="SCXW130785288 BCX4"> </span><br class="SCXW130785288 BCX4"></span><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">• Work hands-on with industry-standard ML frameworks to<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">validate</span><span class="NormalTextRun SCXW130785288 BCX4"><span class="Apple-converted-space"> </span>functionality and performance across different execution environments.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW130785288 BCX4"><span class="SCXW130785288 BCX4"> </span><br class="SCXW130785288 BCX4"></span><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">• Build and<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">maintain</span><span class="NormalTextRun SCXW130785288 BCX4"><span class="Apple-converted-space"> </span>automated testing and benchmarking pipelines targeting simulators, emulators, and physical hardware.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW130785288 BCX4"><span class="SCXW130785288 BCX4"> </span><br class="SCXW130785288 BCX4"></span><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">• Collaborate closely with software</span><span class="NormalTextRun SCXW130785288 BCX4"><span class="Apple-converted-space"> </span>teams<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">to<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">ensure<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">adequate test coverage for new and existing features.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW130785288 BCX4"><span class="SCXW130785288 BCX4"> </span><br class="SCXW130785288 BCX4"></span><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">• Develop tooling and scripts (primarily in Python) to support testing, benchmarking, and<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">functional reporting.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW130785288 BCX4"><span class="SCXW130785288 BCX4"> </span><br class="SCXW130785288 BCX4"></span><span class="TextRun SCXW130785288 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW130785288 BCX4">•<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW130785288 BCX4">Take ownership over aspects of our testing and infrastructure, owning the roadmap and driving innovation independently.</span></span></span></p>
<h2><strong>Candidate Profile</strong></h2>
<p><strong>Essential:</strong></p>
<p><span data-contrast="auto"><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Experience working in Machine Learning or ML-adjacent engineering roles.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">•<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW40476868 BCX4">Strong foundation</span><span class="NormalTextRun SCXW40476868 BCX4"><span class="Apple-converted-space"> </span>in core AI and ML concepts (e.g. neural networks, training vs inference, numerical precision, performance trade-offs).</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Hands-on experience with one or more major ML frameworks such as<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SpellingErrorV2Themed SCXW40476868 BCX4">PyTorch</span><span class="NormalTextRun SCXW40476868 BCX4">, TensorFlow, JAX, or similar.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Strong<span class="Apple-converted-space"> </span></span><span class="NormalTextRun SCXW40476868 BCX4">proficiency</span><span class="NormalTextRun SCXW40476868 BCX4"><span class="Apple-converted-space"> </span>in Python for ML workflows, experimentation, and automation.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Experience designing, running, and analysing ML benchmarks or experiments.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Experience working in Linux environments.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Strong analytical and debugging skills, with the ability to reason about model behaviour and system performance.</span></span><span class="LineBreakBlob BlobObject DragDrop SCXW40476868 BCX4"><span class="SCXW40476868 BCX4"> </span><br class="SCXW40476868 BCX4"></span><span class="TextRun SCXW40476868 BCX4" lang="EN-GB" data-contrast="auto"><span class="NormalTextRun SCXW40476868 BCX4">• Bachelor/Master's/PhD or equivalent experience in Computer Science, Maths, Machine Learning, Data Science, or related field.</span></span><span class="EOP SCXW40476868 BCX4" data-ccp-props="{"134233117":true,"134233118":true,"201341983":0,"335559740":240}"> </span></span></p>
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