At K-LAGAN, we are looking for a Senior L3 Network Engineer to join our team in Barcelona. You will be responsible for providing advanced support, troubleshooting, and optimizing complex enterprise-grade network infrastructures, while actively contributing to network evolution, security enhancements, and automation initiatives.

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- Advanced Network Operations & Troubleshooting: Provide L3 support, lead incident resolution, perform root cause analysis (RCA) for major outages, and perform complex fault isolation across enterprise network environments.

- Architecture & Infrastructure Maintenance: Maintain high-level stability for core infrastructure, participate in design reviews, execute network upgrades, and support architecture evolution.

- Security & Optimization: Implement security protocols, optimize existing network flows, configure firewalls/VPNs, and maintain network management systems (Cisco Catalyst Center, ISE, SolarWinds, PRTG, Nagios).

- Automation & Continuous Improvement: Automate routine tasks and network monitoring processes using Python and Ansible.

- Documentation & Technical Reporting: Deliver detailed network architecture diagrams, configuration docs, status reports, and incident summaries.

- On-Call Services: On-call availability maximum 1 week per month (rotation from Tuesday 10:00 AM GMT to the following Tuesday, including the weekend).

Requirements & Core Competencies




Experience & Key Technical Skills:

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- Experience: Minimum of 8 years in network engineering (enterprise or service provider environments) with a solid track record in designing, deploying, and maintaining complex infrastructure.

- Protocols & Networking: Deep mastery of TCP/IP, BGP, OSPF, EIGRP, and MPLS.

- Hardware & Vendors: Direct hands‑on experience with Cisco, Palo Alto, Aruba, or Juniper enterprise‑grade equipment.

- Security & Remote Access: Strong familiarity with VPN technologies, firewall configurations, and security appliances.

- Monitoring & Management: Expertise in network monitoring tools (Cisco Catalyst Center / DNAC, ISE, SolarWinds, Nagios, PRTG).

- Automation & Systems: Knowledge of SDN, NFV, and automation/scripting tools (Python, Ansible) on Linux/Windows environments.

- Languages: C1 English level (written and spoken) is required for fluent collaboration.

- Location: Based in Barcelona or currently relocating to Barcelona.

Nice to Have (Plus):

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- Cloud networking experience (AWS, Azure, GCP).

- VoIP and Unified Communications knowledge.

- Data center networking and virtualization (VMware, Hyper-V).

- Official certifications: Cisco CCNP/CCIE,



Palo Alto, or equivalent.

Interpersonal Skills:

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- Strong analytical mind, problem‑solving drive, and technical ownership.

- Clear communication skills with the ability to convey complex technical issues to diverse stakeholders.

- Adaptability, proactivity, and resilience in fast‑paced operational environments.

- Location: Barcelona (Hybrid: maximum 2 days per week on‑site, subject to review).

- Workday: Full‑time.

- Salary Range: Around €48,000 gross/year (commensurate with experience).

- Project: Long‑term, stable mission supporting critical enterprise network infrastructure.

K-LAGAN Benefits & Life at K-LAGAN

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- Permanent contract from day one, private health insurance, and long‑term project stability.

- Team Building: Barbecues, tech meetups, and team events to keep us connected.

- Continuous Follow‑up: Periodic 1‑on‑1 meetings with your Business Manager (BM) to boost your career growth and share feedback.

- Learning & Development: Access to ongoing training in tech skills, soft skills, and languages.

- Special Events: Summer party, Christmas dinner, and Solidarity Day.

- Birthday Off: Enjoy your birthday free-however, wherever, and with whomever you choose

At K-LAGAN, we believe in people and projects with real impact. xqbhyrx We foster an inclusive environment where engineering, technology, and talent join forces, promoting equal opportunity and continuous personal and professional development.

📌 Network Engineer (Barcelona)
🏢 K-Lagan
📍 Barcelona