Senior Management Accountant

Ordnance Survey; Southampton; Hybrid; GBP 61,000 - 71,000; Full time

Benefits offered by this job

Competitive salary

Pension up to 12.07%

Bonus where applicable

28 days annual leave

Enhanced family leave

Hybrid and flexible working

Learning and development

OS Maps subscription

Volunteering leave

Job summary

Ordnance Survey seeks a Senior Management Accountant to lead the Management Accounts team within Central Finance, delivering high-quality monthly and quarterly reporting and driving continuous improvement. You will be responsible for controls, close processes and insightful reporting to support decision-making.

Based in Southampton with a hybrid working pattern, you will collaborate with FP&A, Finance Operations and business partners to build a modern, efficient finance function and develop our

Qualifications

• Has a recognised accountancy qualification (preferably CIMA, ACA, ACCA).
• Has significant experience leading sizeable finance teams.
• Has experience working in complex businesses and reporting environments.
• Brings a strong record of driving continuous improvement, automation and change within finance.
• Is an inspiring leader, committed to developing people and fostering collaboration.

Responsibilities

• Leadership and Team Development: Lead and develop the Management Accounts team with an accountable culture.
• Management Accounting and Reporting: Own monthly and quarterly reporting, ensure accuracy and timeliness.
• Financial Controls and Governance: Oversee reconciliations, policies, and control weaknesses.
• Continuous Improvement and Transformation: Drive automation and standardisation of processes.
• Stakeholder Management: Build strong relationships to support decision-making with high-quality reporting.

Skills

Accounting

Budgeting

Business Reporting

Compliance

End Reporting

Finance

Financial Performance

Financial Processes

Management Reporting

Statutory Auditing

Job description

Senior Management Accountant Full time £61,189.00 - £71,387.00 (dependent on experience) Hybrid Southampton

We're excited to share an opportunity for an experienced and motivated finance professional to join Ordnance Survey as our Senior Management Accountant. This is a pivotal leadership role within Central Finance, responsible for leading the management accounting and reporting team, ensuring the delivery of high-quality monthly and quarterly reporting. The role offers an excellent opportunity to shape and improve financial processes, drive continuous improvement and automation, and play a key part in delivering a modern, high-performing finance function. Working closely with Finance Business Partners, Technical Finance, FP&A and Finance Operations, you'll provide leadership across the financial close process while helping to ensure that financial information and insight support effective decision-making across OS.

About the role

As Senior Management Accountant, you'll lead and develop a team of management accountants and finance professionals, creating a culture of accountability, collaboration and continuous improvement. You'll be accountable for the integrity of management reporting, the effective operation of financial controls and reconciliations, and the successful delivery of monthly and quarterly close processes. Beyond reporting, you'll be expected to identify opportunities to simplify, standardise and automate finance processes, helping to build greater efficiency, control and insight across the organisation. This is an ideal opportunity for someone who enjoys combining strong technical accounting expertise with people leadership, process improvement and stakeholder engagement.

Key Responsibilities

Leadership and Team Development Lead and develop the Management Accounts team by creating a high-performing, inclusive and accountable culture that delivers high-quality outcomes. You'll provide clear direction and priorities, support professional growth through coaching and development, and build team resilience through effective succession planning, cross-training and knowledge sharing

Management Accounting and Reporting: Take ownership of the monthly and quarterly reporting cycle, ensuring the delivery of accurate, timely and insightful management information. You'll oversee the preparation and review of management accounts, manage reporting deadlines and dependencies, lead financial performance reviews, and maintain oversight of all core management accounting activities to ensure robust financial control and reporting integrity.

Financial Controls and Governance: Ensure strong governance, control and compliance across all management accounting processes. You'll oversee balance sheet reconciliations and close assurance activities, maintain adherence to accounting policies and finance standards, and proactively identify and address reporting risks and control weaknesses to safeguard the quality and accuracy of financial information.

Continuous Improvement and Transformation: Drive continuous improvement across the Management Accounts function by simplifying, standardising and automating processes. Working closely with finance and technology teams, you'll lead initiatives that enhance efficiency, reporting quality and insight, while developing and delivering a roadmap that strengthens systems, processes and ways of working.

Stakeholder Management: Build strong relationships across Finance and the wider business, acting as a trusted source of financial expertise and insight. You'll understand the business performance and be able to link this understanding to the financial outcomes. You will be able to communicate complex financial information clearly, and support decision‑making through high-quality reporting and explanations.

About You

• Has a recognised accountancy qualification (preferably CIMA, ACA, ACCA)
• Has significant experience leading sizeable finance teams
• Has experience working in complex businesses and reporting environments
• Brings a strong record of driving continuous improvement, automation and change within finance
• Is an inspiring leader, committed to developing people and fostering collaboration within the team and across the wider business, whilst being passionate about delivering high standards

The Rewards

We want you to love what you do and feel supported to do your best work. Our benefits include:

• Competitive salary and pension (OS contribute up to 12.07%)
• Performance‑related bonus (where applicable)
• 28 days annual leave plus bank holidays (increasing with service)
• Enhanced family leave, including paid partner leave
• Hybrid and flexible working options
• Learning and development support, coaching and mentoring
• Free subscription to OS Maps and access to wellbeing support
• Volunteering leave and matched fundraising

Location & working pattern

We embrace a hybrid working model at OS, because we believe in flexibility and balance. You’ll be based at our fantastic HQ in Southampton, where you'll be expected to spend a minimum of 3 days per week collaborating face‑to‑face with colleagues.

Security & eligibility

OS conducts pre‑employment checks for anyone made an offer of employment, including identity, right to work, employment history and criminal record checks (via Disclosure & Barring Services (DBS). Some of our roles may require additional security vetting. We will advise candidates during the recruitment process if additional vetting may be required for that specific role. This role requires the right to work in the UK at the time of application. Unfortunately, OS cannot provide visa sponsorship for this position.

Ordnance Survey is proud to be an accredited CIMA Development Quality Partner,demonstratingour commitment to supporting finance professionals in furthering their development and careers. Inclusion at OS Research shows that people from underrepresented groups often hesitate to apply unless they meet every requirement. At Ordnance Survey, we’re committed to building a diverse, inclusive and welcoming workplace. If this role excites you but your experience doesn’t match every point, we encourage you to apply. You may be the right person for this role or another opportunity at OS. 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.

Closing date: 23 September 2026 23:59pm

Who we are

We are Ordnance Survey, Great Britain’s national mapping service and a pioneer in geospatial technology. With over 230 years of trusted data, we empower better decisions, deeper understanding, and meaningful connections to the places we live, move through, and care for. Three principles one direction Clear the path – Cut the noise. Simplify. Move at pace Seek the story – Listen. Understand. Speak up Do what matters – Focus on value Our principles unite us in delivering our Data & Destinations strategy with more simplicity, more clarity, and renewed momentum for each other and for our customers. They’re here to create more good days, and fewer harder ones but only if each one of us plays our part.

Skills required for this role

• Accounting
• Budgeting
• Business Reporting
• Compliance
• End Reporting
• Finance
• Financial Performance
• Financial Processes
• Management Reporting
• Statutory Auditing

Ordnance Survey provides national mapping services for Great Britain and is the world’s most trusted geospatial partner. Our location data and expertise has helped governments make smarter decisions, businesses gain valuable data insight, and everyone experience the world outside for over 225 years. From laptops to hilltops, blue lights to street lights and congestion to relaxation – our location expertise shows the world how to get to a better place.