Accounting & Treasury Migration Senior Manager – TSB | S4 | CFO | London | Internal Mobility

Accounting & Treasury Migration Senior Manager – TSB | S4 | CFO | London | Internal MobilityCountry: United Kingdom

IT STARTS HERE

Santander () is evolving from a global, high-impact brand into a technology-driven organisation, and our people are at the heart of this journey. Together, we are driving a customer-centric transformation that values bold thinking, innovation, and the courage to challenge what’s possible.

This is more than a strategic shift. It’s a chance for driven professionals to grow, learn, and make a real difference.

Our mission is to contribute to help more people and businesses prosper. We embrace a strong risk culture and all our professionals at all levels are expected to take a proactive and responsible approach toward risk management.

THE DIFFERENCE YOU MAKE

Accounting Products is looking for an Accounting Integration Senior Manager based out of London. 9 Month – FTC.

To lead the accounting readiness for Treasury product migration as part of the TSB integration programme.

This role is responsible for ensuring product accounting, accounting events, migration outcomes and financial governance are designed and delivered to support safe treasury migration into the Santander operating model. Working closely with Finance, Technology, Operations and Change teams, you will provide accounting leadership across your product portfolio while supporting programme governance, migration readiness and formal accounting attestation.

We’re shaping the way we work through innovation, cutting-edge technology, collaboration and the freedom to explore new ideas. To succeed in this role, you will be responsible for:

• Leading accounting readiness across an assigned portfolio of treasury products throughout the migration lifecycle.
• Defining product accounting treatments, accounting events, journal logic, ledger outcomes and reporting requirements for migrated products.
• Developing and maintaining accounting event and flow catalogues, ensuring accounting outcomes are complete, controlled and aligned to the target operating model.
• Supporting migration assurance by defining accounting acceptance criteria, evidence requirements and readiness assessments for migration waves.
• Providing accounting input into treasury migration planning, product sequencing and migration readiness activities.
• Working with Control, Reconciliations and Technology teams to ensure appropriate financial controls and reconciliations are designed and implemented.
• Supporting product and wave attestation activities, providing evidence to support migration sign-off and Go/No-Go decisions.
• Supporting cutover planning, migration execution and hypercare to ensure accounting integrity is maintained throughout implementation.

WHAT YOU’LL BRING

Our people are our greatest strength. Every individual contributes unique perspectives that make us stronger as a team and as an organisation. We’re enabling teams to go beyond by valuing who they are and empowering what they bring.

The following requirements represent the knowledge, skills, and abilities essential for success in this role. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Professional Experience

• Qualified accountant or equivalent finance experience. (Required)
• Strong treasury product accounting experience. (Required)
• Experience of finance change, migrations or major transformation programmes. (Required)
• Experience working with cross-functional programme teams. (Preferred)

Education

• Qualified accountant (e.g. ACA, ACCA, CIMA or equivalent), or by experience (Preferred)

Languages

• English (Required)

Hard Skills

• Treasury product Accounting/ Accounting Event Design (Required)
• Accounting Controls (Required)
• Experience with finance systems integration and migration (Preferred)

Soft Skills

• Strong leadership and team coordination skills (Preferred)
• Excellent stakeholder management and communication abilities (Preferred)
• Ability to work across functions and influence senior stakeholders (Preferred)

WE VALUE YOUR IMPACT

At Santander, your contribution matters. We recognise the difference you make every day, and we make sure you feel valued, supported and rewarded in return.
Here, recognition goes beyond pay. It’s about the pride you feel in your work, the impact you have on customers and communities, and the opportunities you have to grow and thrive — personally and professionally.

Salary Range:

£80,800.00 - £121,200.00 per annum (depending on experience)

This salary range represents the expected remuneration for the role. Annual salary is based on a standard 35-hour working week. Actual salary offered will depend on skills, experience, qualifications and location.

• Competitive rewards that reflect the real impact you make and the value you bring.
• Wellbeing that goes beyond work — we work with a range of wellbeing partners across our 4 pillars of wellbeing (physical, mental, social and financial) to give you access to a suite of apps, discounted gym and fitness access, weekly online classes, flexible healthcare and mental health support.
• Support for every life stage — from menopause and pregnancy to parenthood and beyond, with enhanced family leave, childcare options and tailored wellbeing support.
• Time to give back through volunteering opportunities that let you make a difference in the communities we serve.
• Global growth opportunities to shape your career, learn new skills and explore what’s possible across our international network.

Ready to be recognised? It starts with you.

LOCAL COMPLIANCE

At Santander, we’re proud to be an inclusive organisation that provides equal opportunities for everyone — regardless of age, gender, disability, civil status, race, religion or sexual orientation.

We’re committed to creating a recruitment experience that’s accessible, fair and welcoming for all candidates.

We want our people to thrive — at work and at home — while delivering the best outcomes for our customers and supporting each other to grow.

To make this possible, our roles are site-based with a hybrid working pattern, where colleagues are expected to attend the office at least 12 days per month (pro-rata for part-time roles).

When applying, please consider the travel distance, time and cost to your chosen office location(s).

We welcome applications on the understanding that, should you be offered this role, there may be no relocation package available. Santander will pay the employer mandatory government fees that are required to pay in connection with visa sponsorship. You may be liable for your own personal employee immigration and relocation costs.( Only applicable for roles that are eligible for sponsorship)

IMPORTANT INFORMATION FOR INTERNAL APPLICANTS:

SECONDMENT OR FTC ROLES:

• If you are currently employed by Santander UK plc on TSB Legacy terms and choose to apply for this Santander fixed term vacancy, please be aware that, if successful, you will move onto full Santander terms and conditions of employment and will no longer be part of the TSB Legacy population with effect from the start date of your new role. Please also note that if the role you accept is a secondment role, this change will also apply to your substantive/home role (i.e. the role to which you would normally return at the end of your secondment): you will no longer be TSB Legacy for either your secondment role or your substantive/home role with effect from the start date of the secondment role. If you have any questions about what this means, you should raise them during the application process or log a ticket with Ask HR.

• If you are currently employed by TSB and the role you accept is a secondment role (rather than a fixed term contract), this will not impact the terms and conditions of your substantive/home role (and you will remain employed by TSB on your current terms and conditions until your employment transfers to Santander under TUPE).

WHAT TO DO NEXT

If this sounds like a role you are interested in, then please apply.

For further Guidance please visit Internal Mobility - Candidate Guidance.

If you want to know more about the opportunity:

Please contact: Graham Milne - Graham.Milne@Santander.com

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