Senior Manager: Core Banking Architect

Womentech Network; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

EY in London seeks a Senior Manager – Core Banking Architect to own target architectures for core banking domains, define domain models, API/event patterns and non-functional controls. You will lead multi-vendor squads, shape roadmaps, and ensure designs meet resilience and security standards while enabling safe interoperability and AI-ready data exchange.

You’ll drive design quality, mentor teams, and contribute to business development through credible solution proposals and reusable patterns

Qualifications

• 8+ years in solution/domain architecture with core-modernisation experience.
• Mastery of domain-driven design, integration via APIs/events, and modern platform patterns.
• CIO/Architect/COO stakeholder leadership with clear architecture artefacts.

Responsibilities

• Define target architectures for core and adjacent domains (customer, ledger, lending, treasury) with clear API/event contracts and data responsibilities.
• Lead strategic optioning and roadmaps (progressive modernisation vs replacement) with credible delivery pathways.
• Govern design quality and NFRs (availability, performance, security, operability); manage design risks and decisions.
• Shape and deliver scalable, resilient, end‑to‑end solutions, ensuring designs are fully considered, robust and aligned to agreed architectural standards.
• Act as the conduit between business and technology functions; translate outcomes into clear design options and actionable plans.
• Provide high‑quality guidance and documentation to enable a rapid, secure path from design to build/run.
• Contribute to business development: shape proposals, provide solution credibility in pursuits, and support mobilisation of wins.
• Develop people and communities of practice; coach junior colleagues and embed reusable patterns, assets and playbooks.

Skills

Domain architecture

DDD design

API integration

API/Event patterns

Cloud & microservices

Stakeholder leadership

Tools

Kubernetes

Containers

Job description

EY in London seeks a Senior Manager – Core Banking Architect to own target architectures for core banking domains, define domain models, API/event patterns and non-functional controls. You will lead multi-vendor squads, shape roadmaps, and ensure designs meet resilience and security standards while enabling safe interoperability and AI-ready data exchange.

You’ll drive design quality, mentor teams, and contribute to business development through credible solution proposals and reusable patterns