Senior Network Security Engineer (Hybrid -Lisbon)

Empresa : Claranet

Tipo de Emprego : Periodo Integral

Lisbon, Portugal

Descrição do Emprego - Senior Network Security Engineer (Hybrid -Lisbon)

We're fast learners, hard workers, natural collaborators... and we Make Modern Happen!

Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely. We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to address our customers' challenges and to build something stronger together.

If you share our vision, join us!

Right now, we are looking for a Senior Network Security Engineer for a client on our Talent Team.

Your responsibilities include:

Manage and resolve critical network security incidents (P1/P2) escalated from L1/L2, including root cause analysis
Ensure service mitigation, recovery, and participation in major incidents / war rooms
Coordinate with SOC, NOC, vendors, and client teams during critical situations
Plan and execute complex or high -impact changes, including migrations and new implementations
Assess risks and define rollback strategies for all critical changes
Validate configurations before and after implementation
Administer and optimize network security solutions (NGFW, VPN, ZTNA, Anti -DDoS, EDR/XDR)
Perform system upgrades, hardening, and policy optimization
Monitor system performance, capacity, and availability
Identify opportunities for technical and operational improvements
Implement and evolve network security architectures and solutions
Maintain and update technical documentation and procedures
Act as technical owner for assigned client environments, ensuring stability and security
Support internal teams in designing and evolving network and security solutions
Diagnose and resolve complex network and security issues in distributed environments

You must have:

Bachelor’s degree in Computer Science, Information Technology, or a related field
5+ years of experience in network security
Experience in enterprise environments or Managed Services
Proven experience handling critical incidents in 24x7 environments
Strong knowledge of network security technologies (Firewalls, VPN, ZTNA, Anti -DDoS, EDR/XDR)
Solid understanding of routing, switching, and network architecture
Experience with SD -WAN, SASE/SSE, Load Balancers, and secure access technologies (2FA)
Strong troubleshooting and problem -solving skills in complex environments
Ability to design, implement, and assess network and security solutions
High level of technical autonomy and ability to work in multi -client environments
Strong analytical thinking and decision -making skills
Excellent communication and collaboration skills
Ability to work under pressure and manage critical situations
Proactive mindset with focus on continuous improvement

Nice to have:

Cisco
Fortinet
Palo Alto
Check Point
F5, A10
Radware, Allot, Imperva
Netskope
Huawei

We offer:

Integration into a dynamic and motivated team for the performance of the role.
Additional training.
Salary package according to the role performed.
Professional development.

Workplace: Lisbon - Hybrid

Claranet, Make modern happen!

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Senior Network Security Engineer (Hybrid -Lisbon)

Descrição do Emprego - Senior Network Security Engineer (Hybrid -Lisbon)

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