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About the Role
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. 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. 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.
Responsibilities
- Work closely with Data Scientists, Machine Learning Engineers, and customers to understand and define plasma-related engineering challenges.
- Build and own computational plasma models for semiconductor manufacturing processes, including plasma etching, CVD/ALD deposition, and ion-driven surface interactions.
- Work directly with semiconductor customers, often on-site, to scope engineering challenges, design modelling strategies, and present results that drive real process decisions.
- Select and apply the right simulation tools and fidelity level for each problem (e.g. COMSOL, HPEM, VizGlow, CFD-ACE+), and validate outputs against experimental or industrial process data.
- Collaborate with PhysicsX Data Scientists and ML Engineers to integrate simulation work into AI-powered workflows.
- Operate independently on open-ended, highly specialised problems, scoping, executing, and delivering with minimal oversight.
- Combine project leadership with a strong commitment to mentoring junior colleagues, contributing to a culture of collaboration, growth, and shared success.
Requirements
- 3–5 years of industry experience (post-PhD), ideally within or directly supporting the semiconductor manufacturing industry.
- Proficiency in Python (or similar) for workflow automation, data handling, and integration with simulation tools.
- Ability to travel globally (North America, Europe, Asia, Oceania) for an average of 3-4 weeks per quarter to work side-by-side with customers in building solutions on-site.
Skills
- Plasma physics
- Computational plasma modeling
- Plasma chemistry
- Sheath dynamics
- Ion energy distribution
- Plasma-surface interactions
- Machine learning in physics-based simulation workflows
- Python
- Workflow automation
- Data handling
- Integration with simulation tools
- Communication skills
Location
- Shoreditch (Hybrid)
Work Type
- Hybrid
- Full-time
Experience Level
- Senior
- 3-5 years post-PhD
Education Level
- PhD
Benefits
- Equity options
- 10% employer pension contribution
- Free office lunches
- Enhanced parental leave (3 months full pay paternity, 6 months full pay maternity)
- YellowNest nursery scheme
- 25 days of Annual Leave (+ Public Holidays)
- Private medical insurance (100% employee cover)
- Wellhub Subscription
- Eye tests
- Personal development support
- Employee Assistance Programme (EAP)
- Bike2Work scheme
- Season ticket loan
- Octopus EV salary sacrifice
About the Company
- PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software.
- 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 & Defense, Materials, Energy, Semiconductors, and Automotive.
Equal Opportunity
- We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality, disability, age, sexual orientation or gender identity.
- We strongly encourage individuals from groups traditionally underrepresented in tech to apply.
- To help make a change, we sponsor bright women from disadvantaged backgrounds through their university degrees in science and mathematics.
- We collect diversity and inclusion data solely for the purpose of monitoring the effectiveness of our equal opportunities policies and ensuring compliance with UK employment and equality legislation. This information is confidential, used only in aggregate form, and will not influence the outcome of your application.