Office Manager / Senior Administrator (with Bookkeeping Support) Location: York (Fully Onsite, 5 days per week) Salary: £32,000 - £40,000 per annum KO2 is proud to be working with one of our long-standing clients, a highly respected bespoke software company delivering complex, high-integrity software solutions for blue-chip businesses across the world. This is a fantastic opportunity to join a growing international organisation of around 50 people, where you will play a pivotal role at the heart of the business. As Office Manager, you will ensure the smooth day-to-day running of the office while supporting finance and operations teams with key administrative and bookkeeping tasks. The Role This is a broad, senior administrative position offering variety, responsibility, and long-term career potential. You will be the central point of contact for office operations, working closely with colleagues across the business and supporting senior stakeholders. No two days will be the same, and your contribution will have a visible impact on the efficiency and wellbeing of the whole company. The role is fully office-based in York, five days a week. Key Responsibilities Office Management & HR Support Oversee the smooth running of the office, including facilities, procurement, and insurance Coordinate HR-related administration such as absence tracking, holidays, and recruitment support Organise and book international tra...