Senior Network Engineer in Cardiff

Energy Jobline CVL; Cardiff; Hybrid; GBP 51,000 - 56,000; Full time

Job summary

An energy-focused recruitment agency is seeking a Senior Network Engineer in Cardiff for a hybrid role. The position involves managing network technologies across vendors like Cisco and Palo Alto. The ideal candidate will have significant experience in enterprise networking, hold a Cisco CCNP certification, and be proficient in automation tools. This opportunity offers a competitive salary of £51-56k plus benefits.

Qualifications

• Strong background in enterprise networking and cloud infrastructure.
• 3rd line support experience in a large-scale IT environment.
• Proven experience with Cisco, Palo Alto, ZScaler, and automation tools.

Responsibilities

• Support, maintain, and optimize network infrastructure.
• Lead and deliver network projects end-to-end.
• Monitor and resolve network incidents.

Skills

Enterprise networking

Cloud infrastructure

Problem-solving

Relationship management

Automation tools

Education

Cisco CCNP certification

Tools

Cisco

Palo Alto

ZScaler

Ansible

Job description

Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide.

We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers.

Senior Network Engineer

Location: Cardiff 2-3 days p/week onsite (hybrid role)

Salary: £51-56k + annual cost‑of‑living increase + standby allowance

Contract: Permanent

The Role

We’re looking for an experienced Senior Technical Analyst to join a growing IT team, managing and developing a wide range of network technologies across multiple vendors – including Cisco, Palo Alto, ZScaler, Vodafone, and Microsoft. You’ll work on a mix of project delivery and day‑to‑day support, playing a key role in designing, implementing, and maintaining secure, high‑performing network solutions. It’s a hands‑on role, but with the added responsibility of leading projects, mentoring junior engineers, and helping shape the future of the network infrastructure.

What You’ll Be Doing

• Supporting, maintaining, and optimising network infrastructure across multiple platforms
• Leading and delivering network projects end‑to‑end
• Developing automation scripts to improve efficiency and consistency
• Monitoring and resolving network incidents to ensure minimal disruption
• Working closely with architects and security teams to strengthen the network
• Managing vendor relationships and collaborating with internal stakeholders
• Maintaining up‑to‑date documentation and following ITIL‑based processes
• Participating in a 24/7 support rota

Tech Stack You’ll Work With

• LAN / WAN / SD‑WAN
• Wireless networks
• Cisco routing, switching and security solutions
• Palo Alto firewalls
• ZScaler Cloud Services
• Microsoft Azure
• AAA technologies
• Network monitoring (SNMP, SolarWinds)
• Automation (Ansible / DevOps tools)

What You’ll Bring

• Cisco CCNP (or equivalent) certification
• Strong background in enterprise networking and cloud infrastructure
• 3rd line support experience within a large‑scale IT environment
• Excellent problem‑solving and relationship management skills
• Proven experience with Cisco, Palo Alto, SD‑WAN, ZScaler, and automation tools
• A solid understanding of ITIL practices
• Calm under pressure and confident managing critical incidents or tight project deadlines

This is a great opportunity for someone who enjoys taking ownership, leading by example, and working with the latest network technologies in a fast‑moving environment.

If you’re looking to take that next step in your networking career, please apply now. For more details, thanks.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.