The Opportunity

Lumai is redefining how the world computes. We are an ambitious, venture-backed UK startup pioneering a breakthrough AI accelerator for data centers which uses 3D optical compute. Our radical technology uses light to perform computation at orders of magnitude faster speeds and at far greater scales than ever before, all whilst consuming far less energy than traditional approaches.

Lumai is unlocking performance and efficiency gains that could transform the economics of AI and compute infrastructure and reshape how intelligence scales globally.

If you are passionate about bringing groundbreaking technology to market, and want to be part of a team pushing the boundaries of what is physically possible, Lumai is where you can make it happen.

About Lumai

Founded in 2022, Lumai is a University of Oxford spinout using optical processing to accelerate large language models (LLMs) and other transformer-based AI systems. The team combines expertise in optical computing, machine learning, and physics.

Lumai has already secured over $15 million in investment from leading deep-tech investors like Constructor Capital, IP Group, PhotonVentures and government grants, and is scaling rapidly to deploy the fastest optical compute currently available globally.

The Role

We are looking for an exceptional Growth Operations Coordinator to support the business in building and maintaining the corporate infrastructure required for rapid scaling.

This role is ideal for someone who is highly organised, proactive, curious and full of energy. Someone who is eager to learn, enjoys variety, takes initiative and is not afraid to apply a pragmatic, "roll up your sleeves" approach to fix problems and drive cross-functional initiatives.

What You'll Do

The Growth Operations Coordinator supports the smooth day-to-day running of the company by managing the execution of critical daily, weekly and project-based administrative tasks across a wide and critical functional scope. The role focuses on addressing the operational needs of scaling the team, fast.

• IT & Systems Administration: Oversee the IT infrastructure, managing the tech stack, software licenses and security protocols to ensure teams have the right tools to perform. Design, implement and automate scalable systems and workflows across the entire organisation to boost efficiency and productivity

• People & HR Operations: Maintain and continuously improve key people operations workflows including hiring, job posting, recruitment agency management, employment contracts, share option agreements, performance review cycles, employee handbook updates

• Corporate Governance & Compliance: Own and ensure compliance across corporate governance, legal administration and essential regulatory requirements. Organise and maintain digital documentation systems

• Financial Operations: Support the operational aspects of the finance function, including purchasing, invoicing and expense management processes

• Ad-hoc Critical Projects: Support cross-functional strategic projects, such as new office relocation, fundraising and investor relations, data room management, due-diligence coordination

You will gain exposure across people, operations and special project delivery, with the opportunity to develop into a future Operations or People Manager role as the team grows.

What We're Looking For

Must-Have

• Experience: 1–5 years of professional experience in an administrative, HR, recruitment, operations or office management role (startup experience is a plus)

• Organisational Skills: Strong organisational and administrative skills, with excellent attention to detail, plus ability to manage multiple work streams and prioritise effectively

• Tech Savvy: Familiarity with modern workplace tools (e.g., HiBob, Asana, Notion, expense and equity management tools, etc.) or a strong demonstrated ability to learn new systems quickly

• Mindset: enthusiastic attitude, proactive, standalone, pragmatic and eager to own administrative challenges end-to-end. A problem-solver who takes initiative and follows through, spots opportunities to improve processes and makes things happen

Compensation & Benefits

• Highly Competitive Salary: We are not saying our salary is a blank check, but let's just say it won't be a source of your stress

• Share Option Scheme: We are all in this together! We believe in shared success while we build the Lumai of tomorrow

• Pension Scheme: Plan for retirement with AVIVA

• Private Health Insurance: We firmly believe that you come first, and a happy you is a healthy you! Look after yourself and your loved ones with AXA

• Cycle to Work: Spread the cost of a bike, a bike and accessories or just accessories ​and save on tax

• L&D Allowance: Stay at the forefront of your field with a £500 annual development budget

• Subsidised On-site Lunches: Enjoy on-site healthy meals at half the price, as Lumai covers 50% of the cost

• Holidays: Enjoy some deserved "me time" with 25 days paid holiday (plus bank holidays) per year

• Socials: Be part of an inclusive community enjoying occasional all-company off-sites, lunches and socials

Interview Process

Our process is four stages. An initial conversation with our HR team to understand what you want from the role and what we want from it. Two technical sessions with various members of our wider team. Finally, an HR-team session covering scope, terms, and any final questions. We aim to move fast on candidates we are excited about; expect roughly three to four weeks end to end.

Lumai is an equal opportunity employer. We make hiring decisions on merit, scope-fit, and the strength of the working relationship we expect to build with each hire. Applications welcome from candidates of any background. If you are not sure whether you are a fit, send a note anyway.