Network & Security Engineer

A2IT Tecnologia is a Portuguese IT services company, founded in 2006. With offices in Portugal, Brazil, and the UAE, we provide 24/7 support and tech solutions for national and international clients. We are ISO 9001 and GNS certified and partner with major technology providers.

? Hybrid model in Lisbon, three times a week

Responsibilities

• Monitor and analyze security events in Solaris, Windows, and Linux environments;
• Handle incidents related to proxies, mail relay systems, and F5 load balancers;
• Investigate and respond to security incidents involving protocols such as SSH, RDP, TLS, Radius, LDAP, SMTP, HTTP/S, etc;
• Support technical projects, including infrastructure migrations and upgrades;
• Collaborate with internal teams on the implementation of security practices and hardening procedures;
• Provide support for IPSEC VPN and remote access control;
• Integrate and maintain SIEM platforms and security tools.

Qualifications

• Proficiency in Solaris, Windows Server, and Linux (Red Hat);
• Experience with proxy, mail relay systems, and F5 appliances;
• Knowledge of security protocols: SSH, RDP, TLS, Radius, LDAP, SMTP, HTTP/S, MFA;
• Familiarity with remote access management and IPSEC VPN;
• Understanding of project management and risk assessment in security contexts;
• Experience with SIEM platforms, on‑premises and Microsoft Sentinel;
• Ability to act in incident response and recovery scenarios.

Nice to Have

• Experience with open‑source and security monitoring/automation tools;
• Strong communication and collaboration skills;
• Ability to participate in Po
  Cs and evaluate new security solutions.

Contact & Application

? Apply now or send your CV to fmarques@pt. a2it.com

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

• Information Technology

Industries

• IT Services and IT Consulting