Financial Planning Accountant
Salary £53,617 - £62,554 (dependent on experience) Hybrid working (50% office based)
At OS, our vision is to be recognised as world-leaders in geospatial services; creating location insight for positive impact. We use our valuable data and know-how to help drive the future success of Britain and other nations. We facilitate important decisions that enhance the quality of life for current and future generations.
Join us and you’ll have an opportunity to make an impact and be part of an organisation committed to driving sustainable outcomes. At OS, we use location data and intelligence to help customers build more resilient societies, preserve the environment, foster healthier, happier spaces that people want to live in, and support the delivery of improved public services and critical infrastructure.
About the role
You will support the Head of FP&A in the management of the financial planning cycles of strategic plan, annual budget and in-year forecasting, providing financial insight, support and challenge to the business. You will also develop and maintain financial models to support business decisions.
Responsibilities
Support the delivery of the financial planning cycle ensuring financial discipline and rigour are maintained within the business
Develop a detailed understanding of the business areas, leveraging knowledge of the commercial environment to effectively understand, and challenge business assumptions
Support with management of the Vena, and D365 Budgeting & Forecasting
Support key business decision making through financial insight, analysis and modelling
Maintain and develops strong working relationships across the business
Represent the Finance function within the business and promotes best practice financial management
Work closely with finance business partners and finance analysts to analyse and understand monthly financial results and performance against plan
Monitor and communicate progress against key performance indicators for the business
Support the development and maintenance of financial models to support business decision
Support in the development and maintenance of a suite of self-service reporting for business stakeholders
Other ad hoc tasks as required
What we’re looking for
Appropriate Accounting qualification (i.e. CIMA / ACA / ACCA qualified or equivalent qualification)
Advanced Excel / financial modelling essential
Experience with capital projects beneficial
Experience in a commercial environment
Experience with financial reporting systems such as Microsoft Dynamics beneficial
Experience with Power BI
Experience with financial / business applications of Copilot and process automation desirable
Strong communication & influencing skills and ability to understand different perspectives
Ability to problem solve
Here is a snapshot of the technologies that we use
Microsoft Dynamics 365, Vena, Excel, Power BI, PowerPoint, Think Cell
The Rewards
We want you to love what you do. That is why our benefits package rewards a job well done. Check out how we support and invest in our employees by clicking here.
Salary £53,617 - £62,554 (dependent on experience)
Performance related bonus up to 10%
A competitive pension scheme (OS contributes up to 12.07%)
28 days annual leave in addition to bank holidays on joining additional to bank holidays (3 taking over Christmas)
Paid maternity, paternity and shared parental leave
Free subscription to OS Maps
Access to online learning platforms
Coaching and Mentoring schemes
Plus, a suite of excellent additional perks and benefits
At OS, we believe looking after your health and wellbeing means more than posters and events. We empower you to manage your work and life the way you need it by offering things like
An extra days’ leave for each year you work, up to 33 days
Employee Assistance Programme
Hybrid working
Free onsite parking at our modern HQ in Southampton
We adopt flexible working and can consider different working hours dependent on the role and your personal circumstances
Eyecare Vouchers
OS Explorers Nursery discount
Cycle to Work scheme
Location: We embrace a hybrid working model at OS. We have a fantastic HQ in Southampton, Hampshire where you will be required to split your time evenly, 50% in HQ and 50% working remotely.
Security: OS conducts DBS background checks for all joiners and some of our roles require additional security clearance, including to SC or DV level in some cases. We will tell candidates at the appropriate time during the recruitment process if additional clearance will be required for this role.
Closing date: Tuesday 20 January 2026 23:59pm
Interviews are scheduled to take place in person at Ordnance Survey Head office.
We are unable to offer sponsorship for this role, therefore you must have the right to work in the UK, without the need for employer sponsorship.
We are happy to consider any reasonable adjustments that people may need during the recruitment process, and you will be asked whether you require any during the application process.
We believe diversity and inclusion is about working together – in an encouraging and respectful environment to reach our full potential. We believe combining diverse backgrounds, experiences and perspectives will help us reach our vision and be trusted and admired across the globe for setting the standards and leading the way.
We are looking for enthusiastic people from a range of backgrounds and welcome applications from any race, age, gender, background, or religion.
We’re individually talented and collectively powerful, and we give you the space to take your career in whichever direction you want.
Skills required for this role:
Analysis, Cost Modeling, Data Analysis, Finance Strategy, Financial Modeling, Financial Reporting and Analysis