EY (Ernst & Young) is a global leader in assurance, tax, consulting, and strategy and transactions services. As one of the "Big Four" professional services firms, it operates a vast network of member firms across more than 150 countries, employing nearly 400,000 professionals worldwide to help clients navigate complex regulatory and business challenges.

In Spain, EY maintains a significant footprint with a major headquarters in Madrid and a strong presence in Barcelona and other regional hubs. The firm is a major recruiter of international talent, offering diverse opportunities in digital transformation, financial services, and sustainability, often within multicultural teams where English is a primary working language.

EY was formed in 1989 through the merger of Ernst & Whinney and Arthur Young & Co. Its roots date back to the 19th century with founders Arthur Young and Alwin C. Ernst, who established their respective firms in the US and UK.

For international professionals

EY Spain frequently hires international profiles for its Global Delivery Services and specialized consulting arms.
The company provides a structured career development framework and extensive internal training programs.
Many roles in technology and consulting hubs allow for hybrid work arrangements.
The firm has a dedicated International Mobility program to facilitate internal transfers and relocations.
Offices are located in major Spanish business hubs, offering flexibility in geographic placement.

Technical Architect - Integration & APIs

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

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

The Opportunity

We are looking to expand our Technological Transformation team within the insurance sector.

The candidate will join a strategic Core SaaS implementation program, being responsible for defining the integration architecture, apification, and decoupling of the legacy ecosystem.

The role requires designing solutions that enable the transition toward an API-First, event-driven, and decoupled model, allowing for the independent development of the core and guaranteeing the scalability of the architecture. You will act as the technical reference for integration, ensuring the quality, consistency, and governance of the API and event model, aligning technical decisions with the principles of simplicity, reuse, and progressive evolution.

Your Main Responsibilities

1. Definition of the technical integration architecture.

Design of integration layers (API Management, events, legacy adapters)
Decoupling strategies between the core and channels.

2. Design and evolution of architectures:

API-first
Microservices
Event-driven architecture

3. Definition and design of:

APIs
Service contracts
Versioning strategies and API governance

4. Design of the integration model:

Definition of business events
Synchronous vs asynchronous processes
Orchestration vs choreography

5. Participation in the apification of the Insurance Core:

Exposure of core capabilities
Design of APIs decoupled from the SaaS provider

Requirements

Degree in Engineering, Mathematics, or related fields.
5 years of experience
High level of English
Knowledge of:
- Robust and decoupled architectures, solution design, core migration programs.
Valued:
- Cloud certifications (AWS, Azure, GCP)
- Certifications in architecture or integration

What do we offer? Well-being and personal benefits

Wellbeing HUB: includes policies and actions for physical (Wellhub) and mental health.
Life and Accident Insurance.
Bankinter Office with special conditions.
EY Flex Flexible Compensation Plan (transport, training, restaurant vouchers, childcare...).

Flexibility and balance

Hybrid work and flexibility depending on the project.

Professional Development

Continuous training through EY University, with an individualized training itinerary.
Career plan to boost annual growth within the firm.
Personalized support: you will have the support of a Buddy and a Counselor throughout your journey.

Culture and work environment

Work in a dynamic and collaborative environment.
Opportunity to collaborate with global and multidisciplinary teams.
Expansion of your professional network in a diverse and enriching context.

Social Commitment

Social impact actions through the EY Foundation.

#LI-HYBRID

View original advert (Spanish)

En EY, damos forma al futuro con confianza. Aquí encontrarás más que un trabajo: una oportunidad para crecer, aprender y dejar huella.
Únete a nuestros 7.000 profesionales en España y 15 oficinas y a una red global de 400.000 personas que trabajan cada día para transformar negocios y sociedades.

#ShapeTheFutureWithConfidence | #EYCareers | #BuildingABetterWorkingWorld

La oportunidad

Estamos buscando ampliar nuestro equipo de Trasnformación tecnológica en sector seguros.

La persona se incorporará a un programa estratégico de implantación de Core SAas, siendo responsable de la definición de la arquitectura de integración, apificación y descacoplamiento del escosistema legacy.

El rol requiere diseñar soluciones que habiliten la transición hacia un modelo API-First, orientado a eventos y desacoplado, permitiendo el desarrollo independiente del core y garantizando la escalabilidad de la arquitectura. Actuará como referente técnico en integración, asegurando la calidad, coherencia y gobernanza del modelo de APIS y eventos, alineando las decisiones técnicas con los principios de simplicidad, reutilización y evolución progresiva.

Tus principales funciones

1.Definición de la arquitectura técnica de integración.

Diseño de capas de integración (API Management, eventos, adaptadores legacy)
Estrategias de desacoplamiento entre core y canales.

2. Diseño y evolución de arquitecturas:

API-first
Microservicios
Event-driven architecture

3. Definición y diseño de:

APIs
Contratos de servicio
Estrategias de versionado y gobierno de las APIs

4. Diseño del modelo de integración:

Definición de eventos de negocio
Procesos síncronos vs asíncronos
Orquestación vs coreografía

5. Participación en la apificación del Core Asegurador:

Exposición de capacidades del core
Diseño de APIs desacoplados del proveedor SaaS

Requisitos

Graduado en Ingeniería, matemáticas o ramas afines.
5 años de experiencia
Inglés alto
Conocimiento de:
- Arquitectura sólidas y desacopladas, diseño de soluciones, programas de migración de core.
Valorable:
- Certificaciones cloud (AWS, Azure, GCP)
- Certificaciones en arquitectura o integración

¿Qué te ofrecemos? Bienestar y beneficios personales

Wellbeing HUB: incluye políticas y acciones para la salud física (Wellhub) y mental.
Seguro de Vida y Accidentes.
Oficina Bankinter con condiciones especiales.
Plan de Compensación Flexible EY Flex (transporte, formación, tarjeta restaurante, guardería...).

Flexibilidad y conciliación

Trabajo híbrido y flexibilidad según proyecto.

Desarollo profesional

Formación continua a través de EY University, con un itinerario formativo individualizado.
Plan de carrera para potenciar el crecimiento anual dentro de la firma.
Acompañamiento personalizado: contarás con el apoyo de un Buddy y un Counselor durante toda tu trayectoria.

Cultura y entorno de trabajo