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. Haga clic en "Solicitar" a continuación para enviar su candidatura. Asegúrese de que su CV está actualizado y de que ha leído primero las especificaciones del puesto.
* 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:
*

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.
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Location:
Based in Barcelona or currently relocating to Barcelona. Nice to Have (Plus):
* 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:
* 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
* 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. xcskxlj We foster an inclusive environment where engineering, technology, and talent join forces, promoting equal opportunity and continuous personal and professional development.

📌 Network Engineer (Barcelona)
🏢 Confidential
📍 Barcelona