Senior Network Engineer L3 — Hybrid (Barcelona)

Business Insights; Barcelona; Hybrid; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Location: Barcelona

Hybrid work

International environment

Job summary

Business Insights is seeking a Senior Network Engineer L3 to join an international technology project focused on enterprise networking, infrastructure reliability and network security.

You will be responsible for maintaining, troubleshooting and optimizing complex enterprise network infrastructures, acting as a Level 3 technical expert to resolve critical incidents and support architecture improvements within global teams.

Qualifications

• 8+ years of experience in Network Engineering, preferably in enterprise or service provider environments.
• Advanced knowledge of TCP/IP, BGP, OSPF, EIGRP and MPLS.
• Hands-on experience with Cisco and/or Juniper network equipment.
• Experience with firewalls, VPNs and network security technologies.
• Advanced L3 troubleshooting, fault isolation and root cause analysis.
• Experience with network monitoring tools such as SolarWinds, PRTG, Nagios or Cisco Catalyst Center (DNAC).
• Knowledge of network automation, SDN/NFV and scripting concepts.
• Experience supporting critical network infrastructures.

Responsibilities

• Provide L3 support for complex network incidents and infrastructure issues.
• Troubleshoot and optimize enterprise networks using Cisco, Juniper and other networking technologies.
• Manage and troubleshoot routing protocols including BGP, OSPF, EIGRP and MPLS.
• Perform Root Cause Analysis (RCA) for critical incidents.
• Support network upgrades, migrations, architecture improvements and security implementations.
• Manage network monitoring tools and improve operational visibility.
• Automate routine networking tasks and maintain technical documentation.
• Collaborate with international technical teams on infrastructure projects.

Skills

L3 network troubleshooting

BGP

OSPF

EIGRP

MPLS

TCP/IP

Network security

Firewalls/VPNs

Network monitoring

SDN/NFV concepts

Scripting concepts

Automation

Communication

Stakeholder management

Education

Degree in Computer Science, Telecommunications or equivalent experience

Tools

Cisco equipment

Juniper equipment

Python

Ansible

SolarWinds

PRTG

Nagios

Cisco Catalyst Center (DNAC)

Job description

Business Insights is seeking a Senior Network Engineer L3 to join an international technology project focused on enterprise networking, infrastructure reliability and network security.

You will be responsible for maintaining, troubleshooting and optimizing complex enterprise network infrastructures, acting as a Level 3 technical expert to resolve critical incidents and support architecture improvements within global teams.