Security Administrator

Inetum2

Lisbon, Lisbon, Portugal Hybrid permanent

Posted: January 7, 2026

Required Skills

Job Description

Inetum is a European leader in digital services. Inetum’s team of 28,000 consultants and specialists strive every day to make a digital impact for businesses, public sector entities and society. Inetum’s solutions aim at contributing to its clients’ performance and innovation as well as the common good.  

Present in 19 countries with a dense network of sites, Inetum partners with major software publishers to meet the challenges of digital transformation with proximity and flexibility.  

Driven by its ambition for growth and scale, Inetum generated sales of 2.5 billion euros in 2023.  

Objective:

Integration into the team responsible for network and security infrastructure functions within Data Centers, ensuring operational continuity and the implementation of new solutions for internal clients, in line with defined requirements.

Your Responsibilities:

• Design, analysis, and implementation of client projects involving network and security infrastructures
• Preparation, analysis, and execution of tests for implemented solutions
• Troubleshooting and resolution of complex incidents, ensuring effective outcomes
• Management of relationships with vendors and manufacturers, when required
• Ensuring up-to-date documentation and inventory of implemented solutions
• Development of technical procedures
• Continuous analysis of existing infrastructures, proposing improvements where applicable

Your Profile:

• 2 to 4 years of experience as a Security Administrator, Network & Security Engineer, or in similar roles
• Strong knowledge of IP networks, IPv4, and IPv6
• Experience with TCP/IP and related protocols, including:

HTTP, FTP, SSH, SMTP, SNMP, UDP, ICMP
• Advanced knowledge of Firewalls, Routing, and Switching
• Experience with IPSec (IP Security Protocol)
• Hands-on experience with Check Point Firewalls (or equivalent vendor equipment)
• Knowledge of Cisco Routing and Switching
• Experience or knowledge of Load Balancers
• Knowledge of VXLAN networks
• Strong analytical and problem-solving skills
• Autonomy and proactivity in the implementation and maintenance of infrastructures
• Good communication skills with internal teams and vendors/manufacturers
• Strong technical rigor, attention to detail, and sense of responsibility
• Critical thinking and a mindset focused on the continuous improvement of infrastructures
• Ability to work effectively in high-demand, mission-critical environments and as part of a team

• Workplace type: Hybrid (max. of 3 times per week in the office)
• Location: Picoas, Lisboa

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