EY
EY

Core Banking Technical Architect (Integration & APIs)

Madrid, Spain·Competitive·Hybrid·Senior·Spanish: Fluent

Added 2 days ago

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About the role

At EY, we shape the future with confidence. Here you will find more than a job: an opportunity to grow, learn, and make your mark.

Join our 7,000 professionals in Spain and 15 offices, and a global network of 400,000 people working every day to transform businesses and societies.

ShapeTheFutureWithConfidence | #EYCareers | #BuildingABetterWorkingWorld

What you'll do

Definition of the technical integration architecture in Core Banking environments:

  • Design of integration layers
  • Decoupling strategies between core and channels

What you'll get

  • EY Wellbeing Hub, with physical health programs (Wellhub) and mental wellbeing support.
  • Life and Accident Insurance.
  • Flexible compensation plan: transportation, training, restaurant card, childcare, among others.
  • Bankinter office with special conditions for EY professionals.

The opportunity

Within the Emerging Technologies area of the Financial and Insurance Sector, the professional will join strategic banking transformation programs, responsible for the definition and evolution of the technical architecture in Core Banking environments, with a special focus on integration, API-enablement, and modernization of legacy systems.

The role requires designing solutions that enable the transition toward API-first, distributed, and event-driven architectures, ensuring the modularity, scalability, and sustainability of banking systems.

Will act as a technical reference, ensuring the viability of functional solutions and aligning architecture decisions with the principles of efficiency, simplicity, decoupling, and progressive evolution of systems.

Design and evolution of architectures

  • Microservices
  • Event-driven architecture
  • API-first

Definition and design of

  • APIs (REST / OpenAPI)
  • Service contracts
  • API versioning and governance strategies

Design of the integration model

  • Orchestration vs. choreography
  • Synchronous vs. asynchronous processes

Participation in the API-enablement of banking services

  • Exposure of core capabilities
  • Orchestration vs. choreography
  • Synchronous vs. asynchronous processes

Participation in the API-enablement of banking services:

  • Exposure of core capabilities
  • Preparation for Open Banking

Ensuring the quality of the architecture in terms of:

  • Scalability
  • Performance
  • Resilience
  • High availability
  • Traceability and observability

Definition of technical standards:

  • API security (OAuth2, JWT)
  • Logging, monitoring, and tracing

Evaluation of technology solutions and vendors

  • API Management
  • Middleware
  • Integration platforms

Collaboration with:

  • Functional teams (core banking)
  • Development teams
  • Infrastructure and cloud teams

Participation in core modernization programs

  • Evolution of legacy systems
  • Migration and coexistence strategies

Requirements

  • Degree in Computer Engineering, Telecommunications, or similar
  • Valuable:
    • Cloud certifications (AWS, Azure, GCP)
    • Certifications in architecture or integration

Technical Architecture

  • Distributed architectures
  • Microservices
  • Highly scalable systems

Design of solutions oriented toward:

  • Decoupling
  • Incremental evolution
  • Complexity reduction

Knowledge and application of architecture principles:

  • Domain-Driven Design (DDD) (valuable)
  • Lean Architecture (valuable)

Integration and APIs

Demonstrated experience in:

  • Design and implementation of REST APIs
  • Definition of OpenAPI / Swagger contracts

Use of integration platforms:

  • API Management (Apigee, Kong, MuleSoft, Azure API Management)
  • Middleware / ESB

Experience with messaging:

  • Kafka
  • RabbitMQ
  • IBM MQ or similar

Banking knowledge: Banking knowledge is essential.

Understanding of:

  • Core banking
  • Account operations
  • Financial products (assets and liabilities)

Regulation

  • PSD2 / Open Banking
  • API security
  • Exposure of regulated services

Flexibility and work-life balance

  • Hybrid working model, with flexibility depending on the project and team.

Professional development

  • EY University: continuous training with an individualized learning path (more than 100 hours per year)
  • Defined career plan, with annual reviews and real growth opportunities.
  • Support from day one through:
  • A buddy for your integration.
  • A counselor for your professional development throughout your entire career.

Culture and work environment

  • A dynamic, collaborative, and inclusive environment.
  • Opportunity to work with global and multidisciplinary teams.
  • Constant expansion of your professional network at a leading firm.

Social commitment

  • Participation in social commitment initiatives through the EY Foundation and our own Social Impact programs in Spain.
  • Real commitment to sustainability, diversity, and corporate responsibility.

You'll most likely need Spanish to apply.This job was automatically translated to English, .

About the company

EY

EY

Consulting

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International company
395000 employees
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