Director of Finance Systems

Aon Corporation; United Kingdom; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A global financial services firm seeks a Director of Finance Systems responsible for leading financial systems expansions and integrations. This role demands collaboration with various shared service functions to ensure compliance and alignment with financial objectives. Candidates should have extensive experience with ERP systems, particularly IBM Planning Analytics (TM1), and a proven track record in managing large-scale implementations across diverse regions. The position offers a comprehensive benefits package and promotes an inclusive and agile working environment.

Benefits

Comprehensive benefits package

Diversity and inclusion initiatives

Global Wellbeing Days

Qualifications

• 7+ years of hands-on experience in financial planning and ERP systems.
• Experience leading cross-functional global teams.
• Ability to manage large-scale financial system implementations.

Responsibilities

• Lead and manage multiple financial systems projects and integrations.
• Ensure systems support accurate financial close and reporting.
• Manage vendor relationships and negotiate contracts.

Skills

TM1 configuration and administration

Proficiency in TM1Py, REST APIs, Python, PowerShell

Expertise in ERP systems

Strong knowledge of SQL, ETL processes

Advanced expertise in dimensional modeling

Tools

IBM Planning Analytics (TM1)

Workday

Cognos Analytics

Tableau

Power BI

Job description

The Director of Finance Systems is responsible for developing and delivering Aon’s Finance strategic objectives, expansions, continuous evolvement and improvement of Finance portfolio of forecast planning systems across the organization.

This role will ensure that all of Aon’s financial systems objectives are met through leadership, management and resourcing for and during the execution and implementation of multiple projects.

The role requires close collaboration with leaders across multiple shared service functions, including Finance, Corporate Systems and Aon Business services. Partnership is critical to ensure alignment on the overall business/technology architecture, adherence to local country statutory/compliance requirements, and strategic finance/technology evolvements.

The successful candidate should have a deep understanding of financial planning and ERP systems, with a proven track record of managing teams in multiple locations and driving multiple system implementations and improvements within a complex, multi region, global company.

Aon is in the business of better decisions

At Aon, we shape decisions for the better to protect and enrich the lives of people around the world.

As an organization, we are united through trust as one inclusive, diverse team, and we are passionate about helping our colleagues and clients succeed.

What the day will look like

• Provide strategic leadership on the execution of financial systems expansions, integrations and continuous improvements in line with organization and financial objectives
• Lead and manage multiple projects across the core financial systems, including but not limited to Workday Adaptive and TM1
• Lead multiple workstreams relating to Finance Digital transformation including the integration and consolidation of financial and operational data sets to enable standardization and harmonization of reporting and increased data insights
• Ensure systems are integrated effectively to support accurate, and timely financial close and reporting. Including partnering with ABS technology teams in times of system and business continuity challenges.
• Ensure systems remain compliant with regulatory and audit compliance and adhere to industry standards, internal and external controls
• Form strategic partnerships with leaders across multiple shared service divisions including Finance, Controllership, FPA, Corporate systems, & ABS.
• Collaborate, build and maintain relationships across the functions and including Global, regional CFOS and country controllers to ensure awareness of inflight projects and to identify new opportunities
• Communicate system capabilities and project updates effectively to stakeholders and ensure their needs are met.
• Manage vendor relationships, support RFPs and negotiate contracts related to finance systems.

Skills and experience that will lead to success

• 7+ years of hands‑on experience in configuring and administering IBM Planning Analytics (TM1), including TM1 server architecture, complex rules, feeders, and TI processes.
• Proficiency in TM1Py, REST APIs, Python, and PowerShell is highly desirable for automation. Strong knowledge of SQL, ETL processes, and database technologies is essential.
• Experience with ERP systems (e.g., Workday, PeopleSoft, SAP) and BI visualization tools (e.g., Cognos Analytics, Tableau, Power BI).
• Expertise in system analysis, testing, issue tracking, and change management
• Ability to translate complex technical requirements into actionable financial business solutions for stakeholders.
• Experience leading cross‑functional global teams, improving processes, and providing training to end‑users.
• Proactive, analytical, and data‑driven mindset.
• Deep understanding of budgeting, forecasting, financial reporting, and consolidations.
• Proven ability to manage large‑scale financial system implementations, upgrades, and maintenance.
• Advanced expertise in dimensional modeling and data warehousing to improve reporting efficiency.

How we support our colleagues

In addition to our comprehensive benefits package, we encourage a diverse workforce. Plus, our agile, inclusive environment allows you to manage your wellbeing and work/life balance, ensuring you can be your best self at Aon. Furthermore, all colleagues enjoy two “Global Wellbeing Days” each year, encouraging you to take time to focus on yourself. We offer a variety of working style solutions, but we also recognise that flexibility goes beyond just the place of work... and we are all for it. We call this Smart Working!

Our continuous learning culture inspires and equips you to learn, share and grow, helping you achieve your fullest potential. As a result, at Aon, you are more connected, more relevant, and more valued.

Aon values an innovative, diverse workplace where all colleagues feel empowered to be their authentic selves. Aon is proud to be an equal opportunity workplace.

Aon provides equal employment opportunities to all employees and applicants for employment without regard to race, colour, religion, creed, sex, sexual orientation, gender identity, national origin, age, disability, veteran, marital, domestic partner status, or other legally protected status.

We welcome applications from all and provide individuals with disabilities with reasonable adjustments to participate in the job application, interview process and to perform essential job functions once onboard. If you would like to learn more about the reasonable accommodations we provide, email [e-mail]

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