Senior CFD Engineer - Plasma Specialist

<div class="content-intro"><h2>About us</h2> <div>PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software.</div> <div>We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace &amp; Defense, Materials, Energy, Semiconductors, and Automotive.</div></div><div> <h4><strong>Who We’re Looking For</strong></h4> <p>As a Senior CFD Engineer – Plasma Specialist, you are a problem solver passionate about creating practical solutions that help customers make better engineering decisions. You bring deep expertise in plasma physics and excel at working directly with customers, often on-site to build high-fidelity computational models integrated into AI tools that are both useful and used.</p> <p>We are seeking a skilled Senior CFD Engineer with expertise in plasma physics applied to semiconductor manufacturing, including plasma etching, deposition, and surface processing. We are particularly interested in candidates with a strong background in computational plasma modeling, covering areas such as plasma chemistry, sheath dynamics, ion energy distribution, and plasma-surface interactions. Awareness of machine learning in physics-based simulation workflows is a plus.</p> <p>You are independent, adaptable, and experienced, able to engage rapidly with semiconductor customer teams and tackle highly niche engineering challenges without needing to learn the industry from scratch. Strong communication skills are critical, as you'll work closely with clients to define challenges, present results clearly, and co-develop solutions.</p> <p>If you have Plasma experience in other industries, we'd still love to hear from you!&nbsp;</p> <h4><strong>This Role</strong></h4> <p>In this role, you will work closely with our Data Scientists, Machine Learning Engineers, and customers to understand and define the plasma-related engineering challenges we are solving.</p> <p>You will play a crucial role in delivering high-fidelity simulations by:</p> <ul> <li class="font-claude-response-body whitespace-normal break-words pl-2">Building and owning computational plasma models for semiconductor manufacturing processes, including plasma etching, CVD/ALD deposition, and ion-driven surface interactions.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Working directly with semiconductor customers - often on-site - to scope engineering challenges, design modelling strategies, and present results in a way that drives real process decisions.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Selecting and applying the right simulation tools and fidelity level for each problem (e.g. COMSOL, HPEM, VizGlow, CFD-ACE+), and validating outputs against experimental or industrial process data.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Collaborating closely with PhysicsX Data Scientists and ML Engineers to integrate your simulation work into AI-powered workflows.</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Operating independently on open-ended, highly specialised problems - scoping, executing, and delivering with minimal oversight.</li> <li>3–5 years of industry experience (post-PhD), ideally within or directly supporting the semiconductor manufacturing industry.</li> <li>Proficiency in Python (or similar) for workflow automation, data handling, and integration with simulation tools.</li> <li>Combining project leadership with a strong commitment to mentoring junior colleagues, contributing to a culture of collaboration, growth, and shared success.</li> <li>Traveling globally (North America, Europe, Asia, Oceania) for <strong>an average of 3-4 weeks per quarter</strong> to work side-by-side with customers in building solutions on-site.</li> </ul> <p>As the role evolves, there are opportunities for growth as an individual contributor or technical lead, especially if you want to own increasingly complex semiconductor plasma projects and help guide the direction of future solutions. We operate on a hybrid model, with around three days per week based in our Shoreditch office.</p> <h2><strong>Our delivery teams drive innovation to turn AI models into practical solutions - <a href="https://www.physicsx.ai/newsroom/how-delivery-makes-physical-ai-work-in-the-real-world">read our blog to learn more about how you'll contribute to this exciting journey!</a></strong></h2> </div> <p><strong>What we offer</strong></p> <p><strong>Build what actually matters</strong></p> <p>Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and society. This is work with real-world impact - and something you can be proud to stand behind.</p> <p><strong>Learn alongside exceptional people</strong></p> <p>Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and about helping each other get better. We come from diverse backgrounds, but we share a commitment to operating at the highest level and addressing some of the most complex challenges out there. If you’re ambitious, thoughtful, and driven by impact, you’ll feel at home.</p> <p><strong>Influence over hierarchy</strong></p> <p>We operate with a flat structure: good ideas win&nbsp;- wherever they come from. Questioning assumptions and challenging the status quo isn’t just welcomed, it’s expected.</p> <p><strong>Sustainable pace, long-term ambition</strong></p> <p>Building meaningful technology is a marathon, not a sprint. We believe in balancing focused, ambitious work with a life beyond it. Our hybrid model blends time together in our Shoreditch office with work-from-home days, giving you the flexibility to work sustainably while staying connected in person.</p> <p><strong>And it doesn’t stop there …</strong></p> <p>🚀&nbsp;<strong>Equity options</strong>&nbsp;- share meaningfully in the company you’re helping to build.</p> <p>🏦&nbsp;<strong>10% employer pension contribution</strong>&nbsp;- because investing in future matters.</p> <p>🍽️&nbsp;<strong>Free office lunches</strong>&nbsp;- to keep you energised and focused.</p> <p>👶&nbsp;<strong>Enhanced parental leave</strong>&nbsp;- 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility during the moments that matter most.</p> <p>🍼&nbsp;<strong>YellowNest nursery scheme</strong>&nbsp;- to help working parents manage childcare costs.</p> <p><strong>☀️&nbsp;25 days of Annual Leave (+ Public Holidays)</strong><span class="Apple-converted-space">&nbsp;</span>- because taking time to rest matters.</p> <p>🏥&nbsp