Executive Assistant to COO London

Nscale is the GPU cloud engineered for AI. We provide cost‑effective, high‑performance infrastructure for AI start‑ups and large enterprise customers. Nscale enables AI‑focused companies to achieve superior results by reducing the complexity of AI development and directly supporting strategic business outcomes, including cost management, rapid innovation, and environmental responsibility. We thrive on a culture of relentless innovation, ownership, and accountability, where every team member takes pride in their work and drives it with excellence and urgency. As an Nscaler, you’ll build trust through openness and transparency, inspiring everyone to do their best work. If you join our team, you’ll be contributing to building the technology that powers the future.

About the Role

We are seeking a highly organised and proactive Executive Assistant (EA) to support the COO at Nscale, working closely with the Executive Operations Partner on key projects and initiatives. The EA will play a critical role in ensuring that the COO is effective in their day‑to‑day responsibilities by managing schedules, coordinating communications, and supporting strategic initiatives.

What You’ll Be Doing

• Calendar & Inbox Management: Handle complex scheduling across time zones and manage inbox, prioritising and flagging critical matters.
• Operational Coordination: Track and manage the COO’s action items from leadership meetings, ensuring follow‑ups are completed and priorities progress on time.
• Meeting Preparation: Prepare agendas, reports, and decks for operational reviews, executive team sessions, and board updates.
• Stakeholder Engagement: Support stakeholder engagement across internal teams (Finance, Ops, HR, Product, etc.) and external partners, working in collaboration with the Executive Operations Partner to ensure joined‑up communication and prioritisation.
• Travel & Logistics: Arrange domestic and international travel, including visas, itineraries, accommodation, and expenses.
• Documentation & Reporting: Draft and edit correspondence, presentations, and reports.
• Event & Project Support: Assist with leadership offsites, operational events, and cross‑functional initiatives led by the COO, partnering with the Executive Operations Partner on key projects and strategic initiatives to ensure seamless coordination and execution.
• Expenses & Budgets: Process expenses and assist with budget tracking as required.
• Forward Planning: Anticipate the COO’s needs, resolve issues proactively, and create an environment where they can focus on strategic priorities.

About You

• 5+ years of experience as an EA supporting senior executives in fast‑paced environments.
• Discretion and sound judgment in handling sensitive information.
• Exceptional organisational skills with outstanding attention to detail.
• Proven ability to manage complex calendars and international travel.
• Strong written and verbal communication; confident, professional, and approachable.
• Adaptable, resilient, and calm under pressure; able to pivot quickly when priorities shift.
• Experience in a start‑up or scale‑up environment is a plus.
• Advanced proficiency in Google Workspace.

The responsibilities outlined in this job description are not exhaustive and are intended to provide a general overview of the position. The employee may be required to perform additional duties, tasks, and responsibilities as assigned by management, consistent with the skills and qualifications required for the role.

At Nscale, we are committed to fostering an inclusive, diverse, and equitable workplace. We believe that a variety of perspectives enriches our work environment, and we encourage applications from candidates of all backgrounds, experiences, and abilities. We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio‑economic backgrounds. If there’s anything we can do to accommodate your specific situation, please let us know.