Senior Network Engineer - Aruba & Wifi Specialist - Lisbon - Hybrid

A2It Tecnologia; Lisboa; Hybride; EUR 45 000 - 60 000; Plein temps

Avantages offerts par ce poste

Hybrid work model

On-site initial period

Résumé du poste

A2It Tecnologia is seeking a Network Engineer to oversee the enterprise network infrastructure, ensuring high availability, performance, and security. Location is Olivais—initially on-site with a hybrid model after onboarding.

Responsibilities include managing LAN/WLAN, Aruba Central, and Extreme switches, plus designing VLANs, QoS, and 802.1X. Ideal candidates have 4+ years of experience in enterprise networking and strong troubleshooting skills.

Qualifications

• 4+ years of proven experience managing enterprise network infrastructures.
• Experience in mission-critical or large-scale environments.
• Strong troubleshooting and incident analysis skills.

Responsabilités

• Manage, operate, and maintain enterprise LAN/WLAN infrastructures.
• Administer and support Extreme Networks Switching platforms.
• Configure, optimize, and troubleshoot Aruba Wireless / Aruba Central solutions.
• Implement and manage VLANs, Routing, QoS, and network segmentation policies.
• Proactively monitor network infrastructure and analyze performance.
• Resolve critical incidents and perform advanced troubleshooting in high-availability environments.
• Manage redundancy, high availability, and business continuity solutions.
• Implement enterprise network security best practices.
• Administer network services, including DHCP, DNS, AAA, and 802.1X authentication.
• Produce and maintain technical documentation, network diagrams, and operational procedures.
• Participate in infrastructure expansion, migration, and modernization projects.
• Collaborate with Systems, Security, and Operations teams.
• Automate network tasks and operational processes.
• Perform wireless site surveys using Ekahau, Hamina, or similar tools.

Connaissances

Extreme Networks

Aruba Wireless

Routing

Switching

VLANs

STP

LACP

AAA / 802.1X

QoS

TCP/IP

DNS

DHCP

Network monitoring

Network troubleshooting

Network automation

Python

Ansible

Scripting

Ekahau site surveys

Outils

Ekahau

Hamina

Description du poste

We are looking for a Network Engineer to join a team responsible for the administration, operation, and continuous improvement of enterprise network infrastructure, ensuring high availability, security, and performance in mission-critical environments.

Location: Olivais - Initially on-site; hybrid work model after the onboarding period

Key Responsibilities

• Manage, operate, and maintain enterprise LAN/WLAN infrastructures;
• Administer and support Extreme Networks Switching platforms;
• Configure, optimize, and troubleshoot Aruba Wireless / Aruba Central solutions;
• Implement and manage VLANs, Routing, QoS, and network segmentation policies;
• Proactively monitor network infrastructure and analyze performance;
• Resolve critical incidents and perform advanced troubleshooting in high-availability environments;
• Manage redundancy, high availability, and business continuity solutions;
• Implement enterprise network security best practices;
• Administer network services, including DHCP, DNS, AAA, and 802.1X authentication;
• Produce and maintain technical documentation, network diagrams, and operational procedures;
• Participate in infrastructure expansion, migration, and modernization projects;
• Collaborate with Systems, Security, and Operations teams;
• Automate network tasks and operational processes;
• Perform wireless site surveys using Ekahau, Hamina, or similar tools.

Technical Skills

• Extreme Networks Switching;
• Aruba Wireless / Aruba Central;
• Routing & Switching;
• VLANs, STP, and LACP;
• AAA / 802.1X;
• QoS and traffic segmentation;
• TCP/IP, DNS, and DHCP;
• Network monitoring and troubleshooting;
• Enterprise networking in high-availability environments;
• Enterprise wireless networking;
• Network automation;
• Scripting and automation (Python, Ansible, or equivalent);
• Network monitoring and observability tools;
• Wireless site surveys (Ekahau, Hamina, or equivalent).

Ideal Profile

• At least 4 years of proven experience managing enterprise network infrastructures;
• Strong troubleshooting and complex incident analysis skills;
• Experience working in mission-critical or large-scale environments;
• Solid knowledge of enterprise wireless technologies;
• Analytical mindset with a problem-solving approach;
• Ability to work in demanding operational environments;
• Strong technical documentation and communication skills;
• Team player with the ability to work independently.

Preferred Certifications

• HPE Aruba Networking Certified Associate (or higher);
• Cisco CCNA (or higher).

Regime de trabalho híbrido.