Senior Network Engineer

Penta Consulting are a technology service provider and leading outsourced partner helping to deliver professional and managed solutions across EMEA.

We’re seeking a Senior Network Engineer to support and enhance our data‑centre network services in Dublin. This role suits someone who thrives in high‑availability environments and enjoys solving complex network challenges.

Key Responsibilities

• Support and optimise data‑centre network infrastructure.
• Monitor service levels, capacity and performance 24/7.
• Deliver network changes and projects on schedule.
• Work with architects and PMs to design and implement solutions.
• Build, deploy and document network configurations.
• Develop and test DR and failover plans.
• Ensure compliance with security and ITIL processes.
• Drive service improvements and automation initiatives.
• Provide technical consultation to customers and stakeholders.

Required Experience

• CCNP (Routing & Switching or Security).
• Strong hands‑on experience with Cisco Nexus, Cisco ASA, ASR, F5 LTM/DNS.
• Expertise in routing, switching, firewalls, VPNs, load balancing, IDS/IPS.
• Solid ITIL experience in a 24x7 operations environment.
• Practical knowledge of OSPF, BGP, VRF, VPC, HSRP, NAT, ACLs, iRules, etc.

Desirable

• Excellent communication and client‑facing skills.
• Experience with Nagios, Cacti, Puppet.
• Vendor management (Cisco, F5, Kemp).
• Background in hosting, MSP or regulated environments.