Senior Security Engineer (L3)

DXC Technology; Las Rozas de Madrid; Híbrido; EUR 50.000 - 70.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Professional development

Flexibility and work-life balance

Access to unlimited certifications

Descripción de la vacante

DXC Technology is seeking an experienced professional to serve as L3 technical reference within their cybersecurity operations. The role involves resolving complex incidents, designing security architectures, and managing advanced security technologies.

Ideal candidates should have 7–10 years of experience in cybersecurity, as well as hands-on skills in network and cloud security solutions. DXC offers a supportive environment and opportunities for professional development.

Formación

• +7–10 years of experience in cybersecurity.
• Previous experience as L3 SOC / Senior Security Engineer or Security Architect.
• Strong knowledge in various security domains.

Responsabilidades

• Act as L3 technical reference within the SOC.
• Handle and resolve complex cybersecurity incidents.
• Design and harden security architectures.
• Manage advanced security technologies.
• Support service transitions and implementations.

Conocimientos

Cybersecurity experience

Incident response

Security architecture design

Network security

Cloud security

Analytical skills

Customer-oriented mindset

Herramientas

EDR/XDR tools

SIEM/SOAR solutions

Firewalls and WAF

Cloud platforms

Descripción del empleo

DXC Technology is a global professional services company whose mission is to lead the digital transformation of our clients by advising and guiding them in the application of technology to obtain the best results and increase the competitiveness of their companies. With more than 130,000 professionals and expert technologists, collaborating in more than 70 countries together with an exceptional network of partners, we offer advanced IT services and solutions.

In Spain, we are one of the main leaders in the IT market. We have nearly 8,000 professionals, distributed in thirteen locations, with centers of excellence in cutting‑edge technologies such as Cloud, Business Intelligence, AI, or Automation among many others, serving more than 200 customers from all industries in the public and private sectors. We work with leading companies in the country that trust us to guide their digital transformation.

We develop active policies of diversity and inclusion of people with disabilities, and we are proud to have a representation of approximately 49% of female professionals.

Roles & Responsibilities

• Act as L3 technical reference within the SOC and managed security services
• Handle and resolve complex cybersecurity incidents (L3 level)
• Design, evolve and harden security architectures (on‑premise and cloud)
• Participate in cybersecurity projects (deployments, migrations, improvements)
• Manage and optimize advanced security technologies, including:
  • EDR/XDR (e.g. SentinelOne, CrowdStrike, Microsoft Defender)
  • SIEM/SOAR (e.g. Sentinel, Splunk, QRadar)
  • Firewalls/WAF (e.g. Fortinet, Palo Alto)
  • SASE / SWG / CASB (e.g. Netskope, Zscaler)
• Support service transitions and implementation of new security capabilities
• Act as escalation point for L1/L2 teams and provide technical mentorship
• Engage with clients (workshops, troubleshooting, reporting)
• Contribute to the implementation of security solutions in client environments
• Participate in on‑call rotations when required

Required Skills

• +7–10 years of experience in cybersecurity
• Previous experience as: L3 SOC / Senior Security Engineer, or Technical Security Architect / Consultant (hands‑on)
• Strong hands‑on experience across:
  • Design, implementation and operation of security solutions
  • Enterprise environments, multi‑client setups or MSSP
• Solid knowledge in several of the following areas:
  • Network Security (Firewalls, IDS/IPS)
  • Endpoint Security (EDR/XDR)
  • SASE / Cloud Security (Netskope, Zscaler, CASB)
  • Public Cloud (Azure, AWS, GCP)
  • Security across IaaS, PaaS, SaaS environments
  • Microsegmentation (e.g. Guardicore)
  • Infrastructure as Code / automation
• Strong analytical and problem‑solving skills
• Ability to work in complex environments and manage multiple priorities
• Customer‑oriented mindset and strong communication skills
• Proactive, autonomous and team‑oriented attitude
• English level B2+

What will you find at DXC?

• Professional development.
• Leading projects for market reference clients.
• Excellent work environment.
• Flexibility and work‑life balance.
• Work with leading technologies within the IT sector.
• Access to DXC University with unlimited certifications.
• Social and responsible commitment.
• Stable employment.
• Social benefits.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in‑person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.