Network Engineer: Design, Secure & Optimize LAN/WAN & SD-WAN

Nimber; Lisboa; On-site; EUR 50,000 - 75,000; Full time

Benefits offered by this job

Relocation assistance

Benefits package

Job summary

Nimber is a fast-growing technology company based in Lisbon, Portugal, seeking an experienced Network Engineer to design, implement and maintain our network infrastructure. You will manage switches, routers, firewalls, and related devices while ensuring security, reliability, and performance across the network.

Responsibilities include monitoring performance, troubleshooting issues, collaborating with IT on upgrades, creating diagrams and documentation, and providing end-user support.

Qualifications

• Relevant academic background for the role.
• 3 to 4 years of experience in designing, managing, and supporting LAN and WAN networks.
• Over 3 years of experience in Cisco Routing and Switching (Nexus and Catalysts) and Fortinets (switching and routing).
• Over 2 years of experience in NAC (802.1x and others) and Load Balancers (NGINX and Fortiweb).
• Over 2 years of experience in Zoning and segmentation (Fortinet and Checkpoint firewalls) and perimeter design (Fortinet and Checkpoint VPNs).
• Over 2 years of experience in WIFI (Cisco and Fortinet Wireless).
• Experience with Voice over IP protocols (Cisco, Asterisk, and FreePBX).
• Knowledge of network architecture and LAN and WAN protocols - SDWAN, MPLS, and others.
• Solid knowledge of network management and monitoring principles and platforms (Radius, TACACs, Zabbix, PRTG, oAuth, LanSweeper, and others).
• Knowledge and work experience with DNS, DHCP, AD/ADFS, Digital Certificates, SIP/SIPTrunk, CallManagers, proxies, and reverse proxies, and others.
• Valued knowledge in network design and segmentation, zoning and DMZ strategies and design.
• Valued work experience in the travel industry.

Responsibilities

• Design, implement, and maintain our network infrastructure including switches, routers, firewalls, and other network devices.
• Monitor network performance and troubleshoot any issues that arise.
• Ensure the security and integrity of our network by implementing and maintaining security protocols and procedures.
• Collaborate with the IT team to implement new technologies and upgrades to our network.
• Create and maintain network documentation and diagrams.
• Provide technical support to end-users and assist with network-related issues.
• Participate in on-call rotation for after-hours support and maintenance.
• Stay up-to-date with industry trends and developments in networking technology.

Skills

LAN/WAN design

Cisco Routing & Switching

Fortinet Switching & Routing

NAC & Load Balancers

Fortinet/Checkpoint Firewalls

WIFI Networks

Voice over IP

SD-WAN/MPLS

Network Monitoring

DNS/DHCP/AD

Education

Bachelor's degree in Networking/Related

Tools

Radius

TACACS+

Zabbix

PRTG

LanSweeper

Job description

Nimber is a fast-growing technology company based in Lisbon, Portugal, seeking an experienced Network Engineer to design, implement and maintain our network infrastructure. You will manage switches, routers, firewalls, and related devices while ensuring security, reliability, and performance across the network.

Responsibilities include monitoring performance, troubleshooting issues, collaborating with IT on upgrades, creating diagrams and documentation, and providing end-user support.