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PhysicsX is the physics AI company for industrials. The company’s mission is to accelerate hardware innovation by overhauling what industrial engineering and manufacturing look like today. PhysicsX is building a new simulation software stack to deliver deep physics AI enablement across the entire engineering lifecycle. The company partners with leading organisations in aerospace & defence, automotive, semiconductors, materials, and energy & renewables, supporting them on some of their most critical and complex challenges. PhysicsX is headquartered in the United Kingdom, with offices in London, New York, and Singapore and an expanding presence in the Bay Area.
- Work closely with our simulation engineers and research scientists to develop an understanding of the physics and engineering challenges we are solving
- Work at the intersection of data science and software engineering to transform prototype implementations to robust production-grade model implementations, libraries and tooling
- Work with multi-GPU/multi-node distributed systems for training and inference at the scale of PBs of data and hundreds of GPUs
- Optimize the models and pipelines on all levels, from job scheduling down to GPU kernels
- Design and build scalable and robust infrastructure for end-to-end machine learning applications on cloud (CoreWeave, AWS)
- Continuously apply and improve engineering best practices and standards, coach your colleagues in their adoption.
- Enthusiasm about using machine learning for science and engineering, and especially in scaling such solutions to real-world settings
- Ability to work autonomously in a fast-paced environment, learn and adapt quickly, scope, plan and deliver effectively
- Strong collaboration and communication skills, especially with research scientists
- Experience with software engineering concepts and best practices (e.g., versioning, testing, CI/CD, API design, MLOps)
- Experience building ML models and pipelines in Python, using common libraries and frameworks (e.g., PyTorch, TensorFlow, JAX)
- Experience with the GPU programming ecosystem, ability to optimise models on all levels of the stack, going down to the level of CUDA/Triton/Warp kernels when necessary
- Experience training and serving ML models at scale
- Experience with large-scale data processing
- Domain knowledge in physics and/or numerical methods, especially CFD
- Experience working in the domain of ML for science or engineering
- Experience building infrastructure on cloud platforms (e.g., AWS, Azure, GCP, CoreWeave)
- Experience with C/C++, especially for computer vision, geometry processing and scientific computing
What we offer
Build what actually matters
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.
Learn alongside exceptional people
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.
Influence over hierarchy
We operate with a flat structure: good ideas win - wherever they come from. Questioning assumptions and challenging the status quo isn’t just welcomed, it’s expected.
Sustainable pace, long-term ambition
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.
And it doesn’t stop there …
🚀 Equity options - share meaningfully in the company you’re helping to build.
🏦 10% employer pension contribution - because investing in future matters.
🍽️ Free office lunches - to keep you energised and focused.
👶 Enhanced parental leave - 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility during the moments that matter most.
🍼 YellowNest nursery scheme - to help working parents manage childcare costs.
☀️ 25 days of Annual Leave (+ Public Holidays) - because taking time to rest matters.
🏥 Private medical insurance - 100% employee cover, giving you complete peace of mind.
💪 Wellhub Subscription - gain access to thousands of gyms, classes and wellness apps, supporting both physical and mental wellbeing.
👀 Eye tests - because good work depends on good health.
📈 Personal development - dedicated support for learning, development, and leveling up over time.
💛 Employee Assistance Programme (EAP) - confidential wellbeing support, available whenever you need it.
🚲 Bike2Work scheme and 🚆 Season ticket loan - to make getting to work easier and greener.
🚗 Octopus EV salary sacrifice - for a simpler, more sustainable way to drive electric.
🔎 Watch this space, we’re continuing to build this as we grow…
Skills Required
- Experience with software engineering concepts and best practices, including versioning, testing, CI/CD, API design, and MLOps
- Experience building machine learning models and pipelines in Python
- Experience with machine learning frameworks such as PyTorch, TensorFlow, or JAX
- Experience with GPU programming and optimizing models across the software stack, including CUDA, Triton, or Warp kernels
- Experience training and serving machine learning models at scale
- Experience with large-scale data processing
- Ability to collaborate effectively with research scientists and engineering teams
- Domain knowledge in physics or numerical methods, especially computational fluid dynamics
- Experience applying machine learning to science or engineering
- Experience building cloud infrastructure on AWS, Azure, GCP, or CoreWeave
- Experience with C or C++ for computer vision, geometry processing, or scientific computing
What We Do
PhysicsX is a deep-tech company of scientists and engineers, developing machine learning applications to accelerate physics simulations and enable a new frontier of optimization opportunities in design and engineering. Born out of numerical physics, we help our customers radically improve their concepts and designs, transform their engineering processes and drive operational product performance. We do this in some of the most advanced and important industries of our time – including Space, Aerospace, Medical Devices, Additive Manufacturing, Electric Vehicles, Motorsport, and Renewables. Our work creates positive impact for society, be it by improving the design of artificial hearts, reducing CO2 emissions from aircraft and road vehicles, and increasing the performance of wind turbines. We are currently recruiting for multiple positions, however please only apply for the role that best aligns with your skillset and career goals. We do not currently offer work experience
