Hybrid Chief of Staff

at Mojo

• Job title: Chief of Staff
• Job type: Full Time
• Experience level: Lead
• Salary: £110,000 - £120,000 per year
• Degree requirement: No Education Requirement
• Location requirements: Hybrid, London, United Kingdom

About the role

• Chief of Staff managing UK operations of an AI relationship therapy startup. Collaborating with US CEO and leading business functions in London.

Responsibilities

• Owning core business operations across people, legal, compliance, and governance as the company scales across the UK & US
• Running our finance function with external accounting support, including budgeting, forecasting, cashflow management, and investor reporting
• Preparing the company for Series A fundraising, including financial models, data rooms, and internal readiness
• Coordinating and negotiating with external advisors and translating advice into clear internal plans
• Working closely with the senior leadership team to improve ways of working, decision-making clarity, and cross-functional collaboration
• Identifying and leading high-leverage strategic projects that don’t have a natural functional owner
• Acting as a calm, trusted problem-solver, bringing structure to ambiguity and momentum to complex problems

Requirements

• A highly capable operator with +4 years experience in fast-growing startups or consulting or Venture Capital
• Comfortable acting as a founder’s right hand, holding context, making judgement calls, and driving execution
• Equally strong at strategy and detail, happy building a model one moment and running a company All Hands meeting the next
• Organised, reliable, and trusted to handle sensitive information with discretion
• Commercially and financially literate, with experience owning or partnering closely on finance
• Confident working across functions and seniorities, and able to bring clarity without ego
• Motivated by ownership, responsibility, and building something meaningful from the inside
• Willing to roll your sleeves up and do whatever is needed to move the business forward
• Compassion, empathy, understanding, or interest in mental health
• Ability to keep up-to-date with the latest tools and trends

Benefits

• £110-120k, with chunky seed round equity package
• Private health, optical, audiological, and dental insurance with Vitality Health
• Hybrid working, 3 days in and 2 days out, with great offices in Old Street
• Three remote working fortnights a year (read more in our handbook)
• 36 days off (inc local bank holidays)
• Parental leave for primary and secondary caregivers
• Workplace nursery benefit and emergency child-sitting allowance
• Monthly team outings
• £500 personal wellbeing budget
• Unlimited professional development allowance
• A £100 budget for noise-cancelling headphones to help with deep work
• Cycle to work scheme and Santander Cycles membership
• If you want to learn more about how we work check out our Employee Handbook