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/ Architecture in a large fintech · ArchDays 2024

Slide contents

  1. 1. Architecture at T-Bank: Yesterday, Today, Tomorrow

  2. 2. Architecture guides significant decisions

    Structure — A high-level system of relationships

    Abstraction — Composition and boundaries

    Principles — Trade-offs and decision style

  3. 3. Architecture reveals the terrain

    Building

    Static form

    Visible facade

    One object

    Map

    Terrain and constraints

    Several routes

    Changing environment

  4. 4. Scale changed the architecture response

  5. 5. Packaged software accelerates the start

    Benefits

    Lower initial cost

    Fast deployment

    Proven reliability

    Vendor support

    Boundary

    Regular upgrades

    Industry standards

    Someone else's product model

  6. 6. In-house code restores control

    Gain

    Product change

    Own data model

    Own release rhythm

    Price

    Long-term costs

    Security

    Integration

    Vendor dependencies

  7. 7. In-house development complicates the pipeline

  8. 8. 03. Platforms turn complexity into service

    Spirit gives engineers a self-service path from repository to operations

  9. 9. The platform connects build and run

  10. 10. An IDP works only through adoption

    Self-service — Golden paths instead of tickets

    Guardrails — Quality and security in the pipeline

    Feedback — SLA, observability and incidents

  11. 11. 04. Governance connects autonomy

    Architecture becomes a process, an artifact and a shared engineering practice

  12. 12. Experience becomes a standard

  13. 13. Changes need different strategies

    Prometheus — Replace a critical dependency

    100M — Architecture renovation

    IT as Lego — Reuse stable parts

  14. 14. Architecture stays with engineers

  15. 15. The next stage is reusable architecture

    Invest in IDP and XaaS

    Develop engineer design skills

    Strengthen distributed governance

    Stop calling everything a platform

    Design for reuse

    Platform and architecture grow together

  16. 16. The story is source-verifiable

    ArchDays 2024 deck

    Author transcript

    Spirit internal developer platform

    Architecture governance cases

  17. 17. Thank you!

    tellmeabout.tech

    Slides, notes and links are on the site

    Alexander Polomodov, Technical Director & Fellow, T-Technologies

    @book_cube