Full-Time
Global Payroll Manager
PhysicsX
201-500 employees
AI-driven simulations for engineering optimization
Compensation Overview
$100k - $190k/yr
New York, NY, USA
Hybrid
Hybrid model with time in New York office; remote days allowed.
 Accounting (1) |
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- Strong experience managing US payroll, ideally in a multi-state environment.
- Good understanding of US payroll tax, benefits deductions, statutory reporting and year-end payroll requirements.
- Experience working with external payroll providers and HRIS/payroll systems.
- Strong understanding of payroll controls, reconciliations and audit requirements.
- Ability to work closely with People, Finance, Legal and external advisors.
- Excellent attention to detail and ability to manage deadlines in a recurring payroll cycle.
- Strong communication skills and ability to explain payroll matters clearly to non-payroll stakeholders.
- Comfortable working in a fast-growth, scaling company where processes are still being built and improved.
- High level of discretion and professionalism when handling confidential employee information.
- Own the end-to-end US payroll process, ensuring payroll is processed accurately, on time and in compliance with federal, state and local requirements.
- Manage bi-weekly payroll cycles, including payroll inputs, changes, approvals, funding, checks and post-payroll reviews.
- Work closely with the People team to ensure payroll data is complete, accurate and properly authorised.
- Review payroll changes including new starters, leavers, salary changes, bonuses, benefits deductions, tax adjustments and other variable pay items.
- Manage payroll compliance requirements, including tax filings, year-end reporting, W-2s and other statutory obligations.
- Partner with benefits providers to ensure employee deductions and employer contributions are correctly processed.
- Support payroll treatment of relocation, mobility, equity, taxable benefits and other employee-related payments where required.
- Act as the main point of contact for US payroll queries, resolving issues quickly and professionally.
- Build and maintain a strong payroll control environment, including clear approval flows, segregation of duties and audit-ready documentation.
- Ensure People and Finance responsibilities are clearly separated, with People owning HR master data and Finance owning payroll processing, review and release controls.
- Prepare payroll reconciliations, including payroll to GL, payroll funding, tax liabilities, benefits deductions and employer costs.
- Support month-end close by ensuring payroll journals, accruals and reconciliations are accurate and submitted on time.
- Maintain clear audit trails for payroll changes, approvals and payments.
- Support internal and external audits by providing payroll documentation and responding to audit queries.
- Identify payroll risks and implement practical controls to reduce errors, delays and compliance exposure.
- Support the development of a global payroll operating model across the UK, US, Singapore and future jurisdictions.
- Help standardise payroll calendars, input templates, approval workflows, reconciliations and reporting across countries.
- Partner with local payroll providers to improve accuracy, timeliness and consistency of payroll delivery.
- Build scalable processes that can support significant headcount growth across multiple locations.
- Document payroll policies, procedures and controls so that the process is repeatable, transparent and resilient.
- Support future payroll system, HRIS and finance system improvements, ensuring payroll data flows are accurate and controlled.
- Help create global payroll reporting for Finance, People and leadership teams.
- Partner closely with People, Finance, Legal, Tax and external advisors to ensure payroll is accurate, compliant and aligned with business needs.
- Work with the Finance team to ensure payroll costs are correctly reflected in management accounts, budgets, forecasts and reporting.
- Support employee mobility and international expansion from a payroll perspective.
- Provide clear guidance to employees and internal stakeholders on payroll timelines, processes and requirements.
- Bring a continuous improvement mindset to payroll and help build a payroll function that can scale with the company.
- Experience supporting payroll across multiple countries.
- Experience in a technology, engineering, SaaS or high-growth start-up environment.
- Experience with employee mobility, relocation, expatriate payroll or cross-border payroll matters.
- Experience supporting payroll accounting, payroll journals and month-end close.
- Experience improving payroll systems, workflows or automation.
- CPP or similar payroll qualification.
PhysicsX develops AI-driven simulations and engineering analysis to help clients design and operate machines in advanced industries such as renewable energy, healthcare, and transportation. Its products work by pairing machine learning with physics-based simulation to model how devices behave, optimize designs, and improve operational processes. This enables more efficient medical devices, lower emissions from aircraft and vehicles, and better performance of wind turbines and other systems. Compared with competitors, PhysicsX combines deep engineering know-how with AI-driven simulation to deliver tailored, project-based or long-term services for sectors with climate and health impact, backed by leadership with extensive R&D experience. The company aims to drive meaningful performance gains for clients while advancing engineering breakthroughs that benefit society, emphasizing sustainable growth and positive societal outcomes.
Company Size
201-500
Company Stage
Series C
Total Funding
$487M
Headquarters
London, United Kingdom
Founded
2019
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Simplify's Take
What believers are saying
- Recognized revenue doubled year-over-year; booked revenue tripled; customer count more than doubled.
- Revenue nears $50 million in 2026, with management targeting more than double in 2027.
- US expansion and Singapore office openings widen access to aerospace, semiconductor, and energy accounts.
What critics are saying
- PhysicsX faces six-month customer backlog, risking delivery slippage and churn by late 2026.
- Crowded field includes Bezos' Project Prometheus, plus Siemens and NVIDIA ecosystem rivals.
- If Large Physics Models miss engineering accuracy, PhysicsX becomes expensive demoware, not infrastructure.
What makes PhysicsX unique
- June 2026 Series C priced PhysicsX at $2.4 billion, validating physics-AI leadership.
- Large Physics Models compress simulations from days to seconds across aerospace, semis, automotive.
- Temasek, NVIDIA, Siemens, and Applied Materials back PhysicsX, strengthening distribution and credibility.
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Benefits
Company Equity
Paid Vacation
Parental Leave
Flexible Work Hours
Remote Work Options
Growth & Insights and Company News
6 month growth
↑ 65%1 year growth
↑ 65%2 year growth
↑ 60%The British Business Bank has invested $25m in PhysicsX, a UK-based physics AI company for industrial engineering, as part of its Series C round led by Temasek. The investment includes participation from M&G Investments and marks the fourth deal from the £200m British Growth Partnership Fund I. PhysicsX builds AI-native simulation software for industries including aerospace, semiconductors, automotive, and energy. Its Large Physics Models predict physical behaviour in near-real time, replacing conventional simulations that can take days or weeks. The company has doubled recognised revenue year-over-year, tripled booked revenue, and more than doubled its customer count. Its workforce has grown to over 300 people, doubling in the past year. The funding will support global expansion and development of more advanced pre-trained physics AI models.
PhysicsX secures backing from British Business Bank as part of Series C funding round. The British Business Bank has invested $25m into PhysicsX, the physics AI company for industrials, as part of its Series C financing. The investment includes the fourth investment made by British Growth Partnership Fund I since its £200m first close. The round, led by Temasek, includes an investment from M&G Investments, demonstrating how the British Growth Partnership's co-investment model can bring additional pension fund capital into UK venture. Pension funds can increase exposure to fast-growing UK companies while businesses can tap into large pools of domestic institutional capital. Founded and headquartered in the UK, PhysicsX is building the new simulation software stack for industrial engineering. Its AI-native platform enables organisations across aerospace & defence, semiconductors, data centres & energy production, automotive, and materials to design, manufacture, and operate next-generation hardware faster and more efficiently. In doing so, it strengthens the productivity and competitiveness of advanced industrial sectors that underpin the UK and global economy. At the core of the platform are PhysicsX's Large Physics Models - physics foundation models that predict the physical behaviour of complex systems in near-real time rather than the days or weeks often required by conventional numerical simulation. By embedding AI inference into traditional engineering workflows, the technology empowers industrials to accelerate development cycles, reduce costs, and unlock breakthrough asset performance, supporting the UK's ambitions to remain a global leader in advanced engineering and manufacturing. The financing comes amid rapid growth. PhysicsX has doubled year-over-year recognised revenue, tripled booked revenue, while more than doubling its customer count over the past year. The team has grown to more than 300 people, doubling in size in the last twelve months. This round will accelerate the company's global growth, the expansion of its platform capabilities, and frontier research, including the development of larger, more powerful pre-trained physics AI models. Charlotte Lawrence, managing director and head of direct equity at the British Business Bank, said, "PhysicsX is redefining how complex products are designed and built. Their platform combines world-class engineering heritage with frontier AI capability to create a company that we believe can be a global leader. As their technology is adopted by the world's top industrial companies, we are thrilled to back their continued expansion whilst also allowing UK pension owners to share in the success of a true global innovator." Ian Connatty, managing partner of the British Growth Partnership and deputy CIO of the British Business Bank, said, "The British Growth Partnership was created to connect pension funds with the UK's fastest growing companies. This transaction shows that model in action, and that we have built a platform for domestic pension fund capital to flow into the UK's technology leaders." Jacomo Corbo, co-founder & CEO of PhysicsX, said, "The opportunity to transform how humanity designs, builds, and operates the world's most critical infrastructure is one of the defining technological opportunities of our time. PhysicsX exists to realise that opportunity. We are building frontier physics AI technology in Britain, scaling it globally, and helping the world's leading industrial companies innovate faster and unlock a new era of productivity. As the UK seeks to strengthen its position in advanced manufacturing and industrial AI, we're proud to be contributing to that ambition from our headquarters in London, with the British Business Bank as an investor and partner in that journey." Niranjan Sirdeshpande, head of Catalyst at M&G Investments, said, "PhysicsX is an excellent example of the type of high-growth, technology-led business that institutional investors want to back. M&G has supported the company's growth both through Catalyst's direct investment and through our backing of British Growth Partnership, helping to channel long-term pension fund capital into innovative UK businesses with significant global potential. This investment demonstrates how government and industry can work together to improve access to growth capital for UK businesses, supporting innovation, skilled jobs and economic growth, while delivering attractive long-term returns for savers." In addition to PhysicsX, British Growth Partnership Fund I has invested in Wayve, Elliptic, and Draig Therapeutics.
PhysicsX secures $300 million to transform engineering with AI. Valuation surpasses $2.4 billion. By Newsroom Last updated Jun 10, 2026 UK-based startup PhysicsX, which leverages artificial intelligence to accelerate engineering design and simulation processes, has secured $300 million in new funding, bringing its valuation to $2.4 billion. The new valuation is more than double the company's valuation from roughly a year ago, when it raised $170 million in a Series B round at a valuation of nearly $1 billion. Since its founding, PhysicsX has raised approximately $500 million in total funding. The latest funding round was led by Singapore's state-owned investment firm Temasek, which was already an investor in the company. Existing investors Applied Materials, Nvidia, Atomico, General Catalyst, and Siemens also participated in the round, while new capital came from M&G and Intrepid Growth Partners. Founded by two former Formula 1 engineers, PhysicsX focuses on applying artificial intelligence to improve product design processes in the manufacturing and defense industries. The company develops technologies aimed at dramatically accelerating complex design and simulation workflows, reducing tasks that traditionally took months to complete to processes that can now be performed in seconds. According to the company, the engineering and advanced manufacturing sectors face significant challenges due to limited resources and shortages of specialized talent, while also having to cope with increasing technological complexity and faster rates of change. PhysicsX, which employs approximately 350 people, believes that engineering software built from the ground up for the AI era can address some of the most critical challenges related to hardware innovation. The new funding will be used to further develop the company's platform, strengthen its AI research efforts, and support the international expansion of its operations. Among PhysicsX's immediate plans are expanding its presence in the United States and opening a new office in Singapore.
PhysicsX raises $300M Series C at $2.4B valuation to scale AI for engineering and manufacturing. PhysicsX, a London-based AI engineering startup, has raised $300M at a $2.4B valuation to scale its physics simulation platform across industries like aerospace, semiconductors, and automotive. · Jun 8, 2026 London-based PhysicsX has closed an oversubscribed $300 million Series C round at a $2.4 billion valuation - more than double its valuation from just 12 months ago, when it raised a $170M Series B at roughly $1 billion. The round was led by Temasek, the Singaporean sovereign wealth fund, with participation from new investors M&G Investments and Intrepid Growth Partners, alongside returning backers including NVIDIA, Siemens, General Catalyst, Atomico, and Applied Materials. Founded by two former Formula 1 engineers, PhysicsX builds AI-native engineering software that compresses physics simulations from days or weeks down to seconds. The platform is already deployed across aerospace & defense, semiconductors, automotive, energy, and industrial manufacturing - sectors where design and simulation bottlenecks have long constrained innovation. The company has seen sharp growth over the past year, doubling recognized revenue, tripling booked revenue, and more than doubling its customer count. It now employs around 350 people. Funds will go toward expanding its platform, deepening AI research - including the development of so-called Large Physics Models - and growing its footprint in the US and Singapore.
PhysicsX reels in $300M to speed up hardware design with AI. PhysicsX Ltd., a startup using artificial intelligence to speed up hardware design projects, today announced that it has raised $300 million in funding. Returning investor Temasek led the Series C round. It was joined by Nvidia Corp., chipmaking equipment supplier Applied Materials Inc., Siemens AG and others. The investment values PhysicsX at $2.4 billion. Engineers design hardware products such as chips and car parts through an iterative process. They create an initial design, test it in a simulation and use the information gleaned during the evaluation to refine the blueprint. They then repeat the workflow many times until arriving at an optimal version of the design. Turning an initial set of blueprints into a market-ready product can take years. London-based PhysicsX offers a platform that uses AI to speed up the process. According to the company, its software can perform tasks that usually take hours or days in a few seconds. Under the hood, an engineering simulation is a sequence of partial differential equations, or PDEs. Such equations can model the physical conditions under which a system is expected to operate and the manner in which it will perform. PDEs take a significant amount of time to solve using traditional methods. According to PhysicsX, the platform speeds up the task with algorithms dubbed neural operators. A neural operator is an AI model that skips some of the steps involved in solving a PDE. It does so by reusing the results of similar equations that were solved in the past instead of calculating everything from scratch. "Almost every hard problem in the physical economy - better aircraft, better chips, better engines, better energy systems - comes down to how fast and how well engineers and machine operators can work through the underlying physics," said PhysicsX co-founder and Chief Executive Officer Jacomo Corbo. The company trains some of its AI models on internally-produced engineering datasets. PhysicsX's car simulation algorithms, for example, use vehicle designs it generates using a tool dubbed the Data Factory. The software automatically creates variations of 260 baseline designs curated by the company's staffers. Some of the platform's AI models help engineers optimize the shape of car parts to make them more aerodynamic. Others focus on multiphysics simulations, which are used to study how the physical phenomena that affect a system interact with one another. For example, a chipmaker might wish to evaluate the correlation between the strength of the current that runs through a chip and the amount of heat it generates. PhysicsX offers its AI models alongside an array of other engineering tools. A feature called the Simulation Workbench helps engineers organize the data produced by simulations. Additionally, PhysicsX provides dozens of templates that ease the task of customizing its platform to a company's engineering projects. The company says its software is used by customers in more than a half-dozen verticals, including the semiconductor, industrial machinery and auto sectors. PhysicsX claims to have tripled its booked revenues in the past year thanks to strong demand. The company's headcount doubled to 300 employees. It will use the proceeds from its Series C round to continue its growth. It plans to expand its international presence and train more capable AI models. A message from John Furrier, co-founder of SiliconANGLE: Support its mission to keep content open and free by engaging with theCUBE community. Join theCUBE's Alumni Trust Network, where technology leaders connect, share intelligence and create opportunities. * 15M+ viewers of theCUBE videos, powering conversations across AI, cloud, cybersecurity and more * 11.4k+ theCUBE alumni - Connect with more than 11,400 tech and business leaders shaping the future through a unique trusted-based network. About SiliconANGLE Media SiliconANGLE Media is a recognized leader in digital media innovation, uniting breakthrough technology, strategic insights and real-time audience engagement. As the parent company of SiliconANGLE, theCUBE Network, theCUBE Research, CUBE365, theCUBE AI and theCUBE SuperStudios - with flagship locations in Silicon Valley and the New York Stock Exchange - SiliconANGLE Media operates at the intersection of media, technology and AI. Founded by tech visionaries John Furrier and Dave Vellante, SiliconANGLE Media has built a dynamic ecosystem of industry-leading digital media brands that reach 15+ million elite tech professionals. Its new proprietary theCUBE AI Video Cloud is breaking ground in audience interaction, leveraging theCUBEai.com neural network to help technology companies make data-driven decisions and stay at the forefront of industry conversations.