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twentyAI

Network Engineer - TWE43151

twentyAI
Spain · Contract · Mid-Senior

The Network Engineer is responsible for designing, implementing, and maintaining complex LAN and wireless infrastructures in a hybrid enterprise environment. This role includes leading network projects, providing Level 3 support, and collaborating within a global engineering team to ensure reliable, secure, and scalable network operations.


Key Responsibilities

  • Lead implementation of network infrastructure projects, including design, deployment, and troubleshooting.
  • Support and evolve enterprise LAN and wireless networks across multiple sites.
  • Act as a technical escalation point for advanced network issues.
  • Design and implement SD-WAN solutions across varied underlay networks.
  • Manage AAA services (TACACS+, RADIUS), with experience in Cisco ISE and ideally Aruba ClearPass.
  • Maintain network documentation (HLDs, LLDs, diagrams, procedures).
  • Leverage scripting (Shell, Python, PERL) to automate tasks and integrate with APIs.
  • Monitor network health using tools such as Logic Monitor, SolarWinds, CA Spectrum, and NetFlow.
  • Analyze packet flows and troubleshoot TCP/IP, DNS, DHCP, HTTP, IPsec, and other core protocols.


Technical Expertise

  • Advanced hands-on experience with LAN/WAN routing and switching (Cisco preferred).
  • Strong knowledge of Cisco technologies: Catalyst, Meraki, Aironet; familiarity with Aruba is a plus.
  • Routing protocols: OSPF, BGP; Network protocols: STP, QoS, HSRP, VRRP, SNMP, NTP, 802.1X.
  • Wireless technologies and network management systems (Cisco Catalyst Centre, Aruba Central).
  • Experience with public and private cloud networking environments (preferred).
  • Familiarity with ITIL processes and frameworks.


Qualifications & Experience

  • Degree or diploma in a relevant technical field.
  • 5+ years of networking experience, including 2+ years in a large-scale enterprise environment.
  • Professional certifications (Cisco, Aruba, or equivalent) strongly preferred.

Key Skills

Ranked by relevance

aruba wireless lan python ipsec cloud perl itil ospf snmp dhcp wan bgp dns stp ntp
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Posted
Sep 22, 2025
Type
Contract
Level
Mid-Senior
Location
Madrid
Company
twentyAI

Industries

IT Services IT Consulting Insurance

Categories

Consulting Engineering Information Technology

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