Senior Technical Application Specialist

Job Title: Senior Technical Application Specialist

Salary: £84,051 - £93,390
Location: London
Hours:  Full time

Working Pattern: Our work style is hybrid, which involves spending at least two days per week currently, or 40% of our time, at our London office.

About us… 

Like the modern Britain we serve, we’re evolving. Investing billions in our people, data and tech to transform the way we meet the ever-changing needs of our 26 million customers. We’re growing with purpose.

About this opportunity

The Senior Technical Application Specialist (TAS) will serve as a domain expert for strategic Commercial Lending platforms (especially ACBS and associated upstream/downstream ecosystems).

What you’ll do
 

• Act as the primary SME for ACBS covering core modules such as customer, facility, loans, fees, transactions, funding, accruals, repayments, and Datamart/reporting.

• Lead design, gap analysis, parameter configuration, and impact assessments for enhancements, migrations, and production fixes.

• Provide expert input on lending products including Term, Revolving, Short‑term loans, and Agency/Syndication structures.

• Own delivery of complex, multi‑region programmes including platform upgrades, decommissioning, application modernisation, and regulatory programmes.

• Lead workstreams, ensuring strong governance of risks, issues, dependencies, and cross‑team alignment.

• Lead end‑to‑end delivery of commercial loan migrations from legacy systems into strategic lending platforms across 30+ global markets.

• Define TOMs (Target Operating Models), data mapping, payment structures, credit risk alignment, and local regulatory/tax requirements (GST/VAT/withholding).

• Oversee cutover planning, rehearsals, and go‑live readiness.

• Drive ACBS version/infrastructure upgrades (e.g., Windows, Oracle) ensuring operational resilience and mitigation of obsolescence risks.

• Collaborate with architecture teams on API frameworks, strategic cloud‑aligned patterns, and data/report consolidation initiatives.

• Coordinate with operations, finance, treasury, compliance, legal, and credit risk teams to define requirements and create design documents.

• Manage vendor relationships for ACBS and supporting infrastructure partners.

• Provide 3rd‑line SME support for complex production incidents and recurring business queries.

• Drive continuous improvement, standardisation, and simplification — including consolidation of BO reports (e.g., 300 → 30 – 40).

What you’ll need
 

• Strong Commercial Lending SME experience with deep ACBS product knowledge.

• Solid understanding of credit risk, market risk, RWA/Liquidity reporting, operational processes, and reporting for lending products.

• Knowledge of Lansa tech and the related issues. Experience in debugging and resolving Lansa related application problems.

• Extensive experience delivering multi‑country lending transformations

• Strong capability bridging technology, operations, and business strategy.

About working for us

Our focus is to ensure we're inclusive every day, building an organisation that reflects modern society and celebrates diversity in all its forms.

We want our people to feel that they belong and can be their best, regardless of background, identity or culture.

We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and a dedicated Working with Cancer initiative.

And it’s why we especially welcome applications from under-represented groups.

We’re disability confident. So, if you’d like reasonable adjustments to be made to our recruitment processes, just let us know.
 

We also offer a wide-ranging benefits package, which includes:

• A generous pension contribution of up to 15%

• An annual bonus award, subject to Group performance

• Share schemes including free shares

• Benefits you can adapt to your lifestyle, such as discounted shopping

• 30 days’ holiday, with bank holidays on top

• A range of wellbeing initiatives and generous parental leave policies

Want to do amazing work, that’s interesting and makes a difference to millions of people?

Join our journey!