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Demo Datos

Senior L3 Network Engineer

Demo Datos Barcelona, Catalonia, Spain

IT Services and IT Consulting · 51-200 employees

9 h ago
network-engineer Senior (5-10 yrs) Full-time Spain
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About the role

Provide advanced support for enterprise network infrastructure, lead incident resolution and root-cause analysis, and contribute to network design, upgrades, security, and optimization. Automate routine tasks, maintain network documentation, participate in an on-call rotation, and collaborate on network projects and migrations.

What they look for

Network Engineering Level 3 Support Network Troubleshooting Root-Cause Analysis Routing and Switching TCP/IP BGP OSPF EIGRP MPLS Network Security VPN Technologies Firewall Configuration Network Monitoring Python Ansible

Requirements

Requires at least eight years of network engineering experience and a bachelor’s degree in Computer Science, Telecommunications, or a related field. Candidates should have strong expertise in enterprise networking, routing and switching, security equipment, VPNs, firewalls, and monitoring tools; professional certifications, automation, cloud networking, and virtualization experience are preferred.

Full description

Descripción del puesto / Funciones

  • Provide advanced (Level 3) support, troubleshooting, fault isolation, and optimization for enterprise network infrastructure.
  • Lead network incident resolution and perform detailed root-cause analysis for major outages.
  • Maintain, support, and participate in network architecture design reviews, upgrades, and security implementations.
  • Automate routine network tasks and enhance monitoring processes using scripting and automation tools.
  • Develop and maintain accurate network configurations, incident reports, and technical architecture documentation.
  • Participate in an on-call rotation (up to 1 week per month, running Tuesday to Tuesday, including weekends).
  • Collaborate with cross-functional teams to drive network projects, migrations, and infrastructure enhancements.

Estudios

Requisitos mínimos

  • Experience: Minimum of 8 years in network engineering within enterprise or service provider environments, including hands-on experience designing, deploying, and maintaining complex network infrastructures.
  • Education: Bachelor’s degree in Computer Science, Telecommunications, or a related field.
  • Core Technical Expertise:
  • Deep knowledge of routing and switching protocols: TCP/IP, BGP, OSPF, EIGRP, and MPLS.
  • Hands-on experience with enterprise-grade networking and security equipment (Cisco, Palo Alto, Aruba, Juniper).
  • Strong expertise in VPN technologies, firewall configurations, and network security appliances.
  • Proficiency with network monitoring and management tools (SolarWinds, PRTG, Nagios, Cisco Catalyst Center / DNAC, Cisco ISE).
  • Skills & Competencies:
  • Strong analytical, problem-solving, and advanced fault-isolation capabilities.
  • Excellent verbal and written communication skills with the ability to explain complex technical issues to diverse stakeholders.
  • Ability to work independently with strong ownership, adapt to fast-paced environments, and handle pressure effectively.

Requisitos valorables

  • Certifications: Professional or expert-level certifications such as Cisco CCNP/CCIE, Palo Alto PCNSE, or equivalent.
  • Automation & Software: Knowledge of Software-Defined Networking (SDN), NFV, and automation scripting (Python, Ansible).
  • Cloud & Virtualization: Cloud networking experience (AWS, Azure, GCP) and data center virtualization (VMware, Hyper-V).
  • Additional Systems: Familiarity with VoIP/Unified Communications systems and network architecture design tools.

Idiomas

English is a must Ubicación

Barcelona ¿Por qué nosotros?

Prioridad

About us

Pasiona Consulting es una consultora tecnológica, partner de Microsoft, dedicada al diseño, desarrollo e implementación de aplicaciones de software a medida para clientes de múltiples sectores.

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