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Solution Architect

Job in City Of London, Central London, Greater London, England, UK
Listing for: Spectrum IT Recruitment
Full Time position
Listed on 2026-02-28
Job specializations:
  • Software Development
    Data Engineer
Job Description & How to Apply Below
Location: City Of London

We are seeking an experienced Solution Architect to play a key role in an excellent client's large-scale platform migration programme focused on consolidating multiple payment and card-processing systems into a unified global ecosystem. The successful candidate will bring expertise in system migrations, ETL/data transformation pipelines, and cross-functional collaboration. You will work with engineering, product, operations, compliance, and partner teams to define and govern architecture that delivers secure, compliant, resilient, and high-performing outcomes.

This can either be a mainly remote or hybrid role depending on what the successful candidate prefers. As well as competitive salary's, our client offers a comprehensive benefits package.

Key Responsibilities
  • Lead solution architecture for the migration and consolidation of regional card-processing and payments platforms into a modern, unified global environment.
  • Design and own large-scale data migration and ETL processes, including data mapping, transformation logic, orchestration, validation, lineage, and implementation.
  • Translate complex business requirements into:
    • Data models and data flow diagrams
    • Sequence diagrams
    • Migration runbooks
    • Integration specifications and architectural patterns
  • Provide hands‑on technical guidance to engineering teams during solution buildout, ensuring alignment to architectural standards.
  • Collaborate with compliance functions to ensure architectural designs meet regulatory obligations (e.g., PCI‑DSS, PSD2, AML, GDPR, electronic money regulations).
  • Promote security‑by‑design across all components, focusing on card data handling, encryption, tokenisation, and access controls.
  • Facilitate technical workshops and architecture design reviews with internal teams and external partners.
Key Skills & Experience
  • Experience as a Solution Architect in fintech, payments, card issuing/acquiring, or financial services.
  • Demonstrated experience with large‑scale platform, system, and data migrations.
  • Hands‑on expertise in designing ETL and data integration pipelines (Python, SQL‑based orchestration, cloud‑native ETL tools, messaging ingestion).
  • Solid understanding of data engineering concepts with practical experience in SQL Server, Mongo

    DB, Synapse, Fabric, and Snowflake.
  • Familiarity with card‑processing systems, scheme integrations, authorisation flows, transaction life cycles, and settlement processes; knowledge of cryptographic key migrations (e.g., EMV, PEK) is advantageous.
  • Experience architecting microservices, REST APIs, event‑driven architectures, and secure cloud services (Azure).
  • Exceptional communication and collaboration skills, capable of working with senior stakeholders, external partners, and technical teams.
  • Ability to balance strategic thinking with hands‑on technical problem solving.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

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