Retail Core Banking Solution Architect (IT) / Contractor

Retail Core Banking Solution Architect

6 Month contract initially + Extensions. Based: Hybrid – 2-3 days onsite in Milton Keynes. Rate: £450 – £550 p/d (via Umbrella company).

We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Retail Core Banking Solution Architect to join the team.

Key Responsibilities

• Providing essential services to Core Banking, as well as products for the bank to manage customers, accounts, pricing, transactions, etc.
• Core banking systems are crucial for the day‑to‑day operations, enabling us to serve our customers effectively.
• Producing functional architecture for project(s).
• Reviewing the designs that have been produced by Engineering Teams using guidance and patterns that have been provided.
• Validating that solutions align to the strategies (e.g. Retail & Corporate Bank & Group).
• Working with the engineering community to deliver solutions primarily in an agile way.

Key Skills & Experience

• Solution Architecture and Design; significant experience as a Solution Architect, ideally within complex financial services environments.
• Domain knowledge in Retail Banking products e.g.: unsecured loans, personal accounts (banking & savings), bonds (fixed term deposits).
• Business segmentation – Retail, business banking, private.
• Onboarding processes for personal accounts.
• Core Banking products (customers, accounts, pricing, transactions, etc.) and related services essential to the operations of a bank.
• Domain‑driven design, with working knowledge of the BIAN framework, TOGAF, ArchiMate.
• Proven experience in defining & documenting As‑Is & Target Architecture, working with stakeholders to deliver strategic objectives & roadmaps; balancing business requirements with functional & technical aspects.

Strategy Experience

• Defining and evolving RESTful APIs following best practices for scalability, versioning and documentation.
• Experience with event‑driven architectures.
• Ability to produce clear functional architecture, design logical components and define interactions between systems, whilst delivering decommissioning and archival initiatives.
• Experience balancing business outcomes with long‑term architecture strategies.
• Experience working with engineering teams to align technical designs with the published architecture.
• Peer review designs to ensure architectural integrity and compliance with standards.
• Experience creating practical, workable architectures aligned to IT principles/standards, following the bank’s architecture governance processes.

Leadership & Ways of Working

• Strong communication and stakeholder engagement abilities.
• Practical and delivery focused mindset.
• Ability to operate independently in a fast‑moving environment.
• Evidence of thought leadership, ownership and initiative.
• Desirable (not mandatory): Knowledge of BIAN, TOGAF, ArchiMate or C4; experience with architecture tools such as Abacus; familiarity with microservices, API integration patterns and cloud concepts such as AWS; exposure to global banking environments or large‑scale transformations.
• Preferred: Knowledge of Santander Core Banking systems, COTS Core Banking Products.

This is an excellent opportunity on a great project of work. If you are looking for your next exciting opportunity, apply now – your CV will reach me directly, and we will respond as soon as possible.

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