Network Engineer - TWE43151 Lisboa

Network Engineer - TWE43151
Lisboa
Lisboa, Lisboa, Portugal

The Network Engineer is responsible for designing, implementing, and maintaining complex LAN and wireless infrastructures in a hybrid enterprise environment. This role includes leading network projects, providing Level 3 support, and collaborating within a global engineering team to ensure reliable, secure, and scalable network operations.

Key Responsibilities

• Lead implementation of network infrastructure projects, including design, deployment, and troubleshooting.
• Support and evolve enterprise LAN and wireless networks across multiple sites.
• Act as a technical escalation point for advanced network issues.
• Design and implement SD-WAN solutions across varied underlay networks.
• Manage AAA services (TACACS+, RADIUS), with experience in Cisco ISE and ideally Aruba Clear
  Pass.
• Maintain network documentation (HLDs, LLDs, diagrams, procedures).
• Leverage scripting (Shell, Python, PERL) to automate tasks and integrate with APIs.
• Monitor network health using tools such as Logic Monitor, Solar
  Winds, CA Spectrum, and Net
  Flow.
• Analyze packet flows and troubleshoot TCP/IP, DNS, DHCP, IPsec, and other core protocols.

Technical Expertise

• Advanced
  - on experience with LAN/WAN routing and switching (Cisco preferred).
• Strong knowledge of Cisco technologies: Catalyst, Meraki, Aironet; familiarity with Aruba is a plus.
• Routing protocols: OSPF, BGP; Network protocols: STP, Qo
  S, HSRP, VRRP, SNMP, NTP, 802. 1X.
• Wireless technologies and network management systems (Cisco Catalyst Centre, Aruba Central).
• Experience with public and private cloud networking environments (preferred).
• Familiarity with ITIL processes and frameworks.

Qualifications & Experience

• Degree or diploma in a relevant technical field.
• 5+ years of networking experience, including 2+ years in a
  - scale enterprise environment.
• Professional certifications (Cisco, Aruba, or equivalent) strongly preferred.