Cloud native infrastructures jobs

Jefe Seguridad de Red - Network Security Group Lead

Telefónica · Posted Nov 7, 2026

Open

Madrid, Madrid, Spain
On-site
Full-time · Manager
3+ years

Jefe Seguridad de Red - Network Security Group Lead

Telefónica · Posted Nov 7, 2026

Open

Madrid, Madrid, Spain
On-site
Full-time · Manager
3+ years

Jefe Seguridad de Red (Network Security Group Lead)

Telefónica · Posted Nov 7, 2026

Open

Madrid, Madrid, Spain
3+ years

Apply with RefersoAI Apply on careers page

Lead the network security across the Telefónica Group within the GCTIO organization, driving security requirements, architecture, and global projects.

Responsibilities

Analyse fixed and mobile network architectures and develop proposals for their end-to-end security.
Identify and assess vulnerabilities, exposure surfaces and potential attack vectors.
Define and evolve security architectures for new technologies, services and network environments.
Conduct threat and risk assessments to improve resilience, segmentation and protection of telecommunications infrastructure.
Assess vendors’ technology roadmaps and develop proposals to strengthen security across fixed and mobile network technologies.

Requirements

Master in computer science or telecom engineering

Skills

network security technology and architecture leadership team management AI and Agentic AI telco standards

Aquitecto Seguridad IT (IT Security Architecture) 1

Telefónica · Posted Nov 7, 2026

Open

Madrid, Madrid, Spain
On-site
Full-time · Mid
1+ years

Apply with RefersoAI Apply on careers page

Defining the security IT architecture across the Telefónica Group within the GCTIO organization, driving IT architecture security requirements in close coordination with operating businesses and key stakeholders.

Responsibilities

Extensive knowledge of communications and security architectures for LAN, WAN, WLAN and SD-WAN networks, including routing, switching, segmentation, VLANs, security zones and access control
Design and evolution of security architectures for data centres, offices, cloud environments, hybrid platforms and corporate services
Experience with network and security technologies such as firewalls, NGFWs, load balancers, routers, switches, IDS/IPS, VPNs, proxies, WAFs, NAC, SIEM and monitoring and response platforms
Definition of architectures based on Zero Trust, defence in depth, least privilege, segmentation and security by design principles
Design of solutions to protect web applications, APIs and corporate services, including authentication, authorisation, encryption, session management, protection against attacks and communications security

Requirements

Master in computer science
Master in telecom engineering
Nice to have: Automation
Nice to have: Team working
Nice to have: customer focus

Skills

network security

Cloud native infrastructures jobs

Responsibilities

Requirements

Skills

Benefits

Responsibilities

Requirements

Skills

Responsibilities

Requirements

Skills