We are One Team. We make it happen. We are Unstoppable. BABEL es una consultora tecnológica multinacional especializada en aplicar sus servicios y conocimiento tecnológico en los procesos de aceleración digital de sus clientes, grandes empresas y organismos públicos. ¿Cuál es nuestro plan estratégico? Miramos hacia el futuro Nuestro plan estratégico Hiperespacio 2029 promete ser un viaje emocionante, lleno de oportunidades para crecer y desarrollarse profesionalmente. Alcanzar 1000 millones de facturación, un reto que estamos seguros de que con la colaboración y el talento de nuestra gente, será otra historia de éxito que escribiremos juntos y juntas. ¿Qué buscamos?As a GTB Senior Solution Architect – Security Focus, you will design and govern secure enterprise-grade architectures aligned with:Santander Group approved security frameworksEnterprise governance and regulatory requirementsMulti-region/domain architectural consistencyCloud-native best practices (primarily AWS)You will act as a trusted security architecture advisor, working closely with:SCIB CTO SecurityBaaS SecurityCISORegional architecture and security teamsCloud and platform engineering domainsGTB devops teamGTB Solution Architect teamKEY RESPONSIBILITIESDefine and design end-to-end security architectures aligned with Santander Group security frameworks and standards.
Ensure multi-region/domain alignment of security patterns and architectural consistency.
Design authentication and authorization models based on:OAuth2OpenID Connect (OIDC)SAML 2.0Federated identityJWT/token-based architecturesDefine IAM strategies for cloud-native environments, primarily AWS, while ensuring compatibility with hybrid or multi-cloud scenarios.
Collaborate with Security and Governance stakeholders to validate architectural decisions.
Lead and execute Proofs of Concept (PoCs)



to validate security models and emerging technologies.
Contribute to cloud migration and modernization initiatives, defining secure target architectures and transition roadmaps.
Embed security-by-design and DevSecOps principles across solution lifecycles.
Participate in architecture reviews, threat modeling, and risk assessments.
Establish reusable security patterns, blueprints, and best practices for cross-region adoption.
Stay current with AWS security services and evolving industry standards.
MANDATORY SKILLS5+ years of experience in Solution Architecture with strong focus on Security Architecture and IAM.
Proven experience designing security architectures in cloud-native environments (AWS preferred).
Experience aligning architectures with enterprise-wide security frameworks.
Hands-on experience implementing OAuth2, OIDC, SAML, federation, and enterprise IdP integrations.
Experience contributing to cloud migration and modernization programs.
Experience in regulated environments (financial services preferred).
Intermediate level in English (Spanish is a plus).
Skills & KnowledgeDeep understanding of authentication and authorization frameworks.
Strong knowledge of enterprise Identity Providers and federation models.
Advanced knowledge of AWS security services (IAM, KMS, WAF, Shield, Security Hub, API Gateway, EKS, etc.).
Experience defining IAM strategies for multi-region/domain and hybrid cloud environments.




Strong understanding of Zero Trust Architecture principles.
Knowledge of encryption standards, PKI, certificate lifecycle management, TLS/mTLS.
Ability to produce clear, structured architecture documentation and security blueprints.
NICE TO HAVESecurity certifications (CISSP, CISM, CCSP, SABSA or equivalent).
AWS Certified Solutions Architect – Professional or AWS Security Specialty.
Experience with hybrid or multi-cloud governance models.
Experience with DevSecOps practices and infrastructure-as-code security controls (Terraform, Ansible, Github actions).
Knowledge of container and Kubernetes security.
Exposure to observability and security monitoring frameworks.
EducationBachelor's degree (or higher).
Postgraduate studies or specialization in Cybersecurity, Cloud Security, or Enterprise Architecture are valued.
Soft SkillsStrong communication and presentation abilities.
Ability to influence across integral and regional teams without direct authority.
Strong stakeholder management skills.
Strategic thinking with strong risk awareness.
Leadership and mentoring capabilities.
High adaptability in complex, regulated environments.¿Qué ofrecemos?Babel, the great way to achieve the success. ¿Quieres formar parte de un equipo en expansión, comprometido e innovador que hace historia cada día? En Babel te acompañamos en tu camino hacia el éxito. Creemos en el talento de las personas y lo queremos potenciar ofreciéndote un gran entorno de trabajo basado en la colaboración y la solidaridad. Trabajar en Babel es mucho más que trabajar en una empresa, es unirse a un equipo de personas con una misión compartida y a un modelo de compañía centrado en valores. Y lo hacemos promoviendo la diversidad, la equidad y la inclusión, garantizando la

📌 Senior Solution Architect Security Focus (Madrid)
🏢 Babel Sistemas
📍 Madrid