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 travel for staff
Act as front-of-house, managing visitors, phones, and general enquiriesFinance Support
Support the Financial Controller with basic bookkeeping tasks
Accurately process supplier invoices, expense claims, and company credit card transactions
Maintain strong attention to detail when handling financial dataOperations & Logistics Support
Assist with order delivery administration and day-to-day operational processes
Prepare physical goods for shipment and track deliveries
Produce delivery documentation including invoices, packing lists, and commercial paperwork
Coordinate documentation, agreements, and records with customers and internal teamsWhat We're Looking For
Essential Skills & Experience
5-10 years' experience in a general administration, office management, or senior admin role
Exceptional organisational skills and attention to detail
Proactive, motivated, and confident taking ownership of responsibilities
Strong Microsoft Office and general IT skills
Comfortable juggling multiple priorities simultaneously
Excellent interpersonal skills with the ability to build rapport across all levels
Good GCSEs / A-Levels, including maths
Desire to grow with the role and develop long-term within the businessDesirable
Experience supporting finance or bookkeeping tasks
Exposure to financial or accounting software
Experience booking international travel
Background in a small or medium-sized business where roles are broad and hands-onWhy Join KO2's Client?
You'll be joining a friendly, collaborative, and technically passionate team with an innovative culture. The company delivers software that supports safer, greener technologies and works with organisations shaping the future of low-carbon systems, autonomous vehicles, and advanced engineering solutions.
This is a long-term opportunity for someone looking to build a meaningful career as an Office Manager within a growing international software business.
If you're an experienced administrator who thrives on responsibility, variety, and being the glue that holds a business together, we'd love to hear from you.
Apply now or contact KO2 for more information