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Claranet VERIFIED EMPLOYER

Network Engineer (Lisbon-Hybrid).

Network Engineering & Telecommunications Full-Time

Network Engineer (Lisbon-Hybrid): our view in 3 lines...

  • The Role:This role is for a network engineer supporting enterprise network infrastructure, hybrid cloud connectivity, and network modernization for a client.
  • The Person:The person will administer and troubleshoot enterprise networks, configure Cisco and Fortinet environments, support on-premises and cloud connectivity, document network architecture, and contribute to infrastructure implementation and modernization projects.
  • Requirements:The role requires Bachelor's degree in Computer Engineering, Network Engineering, Information Systems, or a related field, at least 3 years of hands-on experience in Networking, Cisco network infrastructures, Fortinet networking technologies, Microsoft Azure Networking, and TCP/IP.

About the role

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 Network Engineer for a client on our Talent
Team.

 

Your responsibilities include:

  • Administer, configure, and troubleshoot
    enterprise network infrastructures.

  • Manage Cisco routing and switching
    environments.

  • Administer Fortinet networking solutions,
    including FortiGate platforms.

  • Configure and manage LAN/WAN environments.
  • Implement and maintain VLANs, Trunking, and
    Spanning Tree protocols.

  • Configure and manage static and dynamic
    routing protocols.

  • Deploy and support OSPF and BGP routing
    environments.

  • Configure and maintain network redundancy
    solutions, including HSRP and VRRP.

  • Implement and troubleshoot Quality of Service
    (QoS) policies.

  • Support and maintain high-availability
    network environments.

  • Analyze and resolve network connectivity and
    performance issues.

  • Monitor and analyze network traffic to ensure
    optimal performance.

  • Participate in infrastructure implementation,
    migration, and expansion projects.

  • Document network configurations, topologies,
    and architecture.

  • Support connectivity integration and
    troubleshooting between On-Premises and Cloud environments.

  • Contribute to the evolution and modernization
    of enterprise networking infrastructure.

You must have:

  • Bachelor's degree in Computer
    Engineering, Network Engineering, Information Systems, or a related field.

  • Minimum of 3 years of hands-on
    experience in Networking.

  • Proven experience working with
    Cisco network infrastructures.

·  Strong experience with:

  • Cisco Routing &
    Switching

  • VLANs, Trunking,
    STP/RSTP

  • OSPF and BGP
  • MPLS
  • HSRP/VRRP
  • QoS
  • EtherChannel
  • Network
    troubleshooting

·  Experience with Fortinet
networking technologies, including:

  • FortiGate
  • Static Routing
  • OSPF/BGP
  • SD-WAN
  • High Availability (HA)
  • IPsec VPN
  • Connectivity
    troubleshooting

·  Strong knowledge of:

  • TCP/IP
  • IPv4/IPv6
  • DNS
  • DHCP
  • LAN/WAN architectures
  • Network Segmentation
  • High Availability
    concepts

·  Experience with Microsoft Azure
Networking, including:

  • Azure Virtual Networks
    (VNet)

  • VPN Gateway
  • On-Premises to Azure
    connectivity
  • Strong troubleshooting,
    analytical, and problem-solving skills.
  • Ability to work autonomously in
    the administration and support of enterprise-scale network environments.
  • Effective documentation and
    technical communication skills.

We value:

  • Experience working in
    large-scale enterprise environments.

  • Experience participating in
    network transformation, migration, or modernization projects.

  • Knowledge of Cisco ISE and Cisco
    Prime.

  • Exposure to hybrid
    infrastructure environments combining On-Premises and Cloud networking.

  • Continuous improvement mindset
    and willingness to contribute to infrastructure evolution.

  • Ability to work collaboratively
    across infrastructure and cloud teams.

 

We offer:

  • Integration into a dynamic and motivated team to
    perform the role.
  • Additional training.
  • Salary package in line with the responsibilities
    of the role.
  • Professional growth and career development
    opportunities.

 

Workplace: Lisbon - Hybrid

Claranet, Make modern happen!

Published August 17, 2026
Location Lisboa, Portugal
Job Type Full-Time