Network Engineer

Amentum CMSI; Warrington; Hybrid; GBP 45,000 - 60,000; Full time

Job summary

A leading technology services company is seeking a highly skilled Network Engineer to join their team in Warrington. This role involves designing and supporting network infrastructure for over 7,500 users worldwide. The ideal candidate will have extensive experience in F5 and Cisco technologies, TCP/IP protocols, and will train and mentor team members. A proactive approach and professional certifications are preferred. This position requires regular on-site presence in Birchwood Park.

Qualifications

• Experience in F5 and Cisco Meraki is essential.
• Need solid background in network administration and architecture.
• In-depth understanding of communication and routing protocols required.

Responsibilities

• Design and deploy functional networks (LAN, WLAN, WAN).
• Monitor network performance and integrity.
• Resolve escalated support issues by troubleshooting.

Skills

F5 and Cisco Meraki

Network administration

TCP/IP and routing protocols

Access control models

Coding languages for scripting

Network diagnostic tools (SolarWinds)

Cisco NX-OS and IOS-XE

Palo Alto firewalls

Troubleshooting skills

Large enterprise environment experience

Professional certification (CCNP, CCDP)

Job description

About the opportunity

We are seeking a highly skilled and versatile network engineer to join our Amentum International team. The role holder will possess expertise in hybrid environments (on-prem, Azure, SASE). The role holder will lead the design, implementation, and maintenance of resilient network infrastructure that ensures optimal reliability, scalability, and performance.

Reporting to the Tech Services Manager, you will be working as a part of a small but highly proactive and passionate team providing remote and on-site network infrastructure support for our enterprise end users (internal users), across the UK, EMEA, APAC (approx. 7,500 users). You will also collaborate with colleagues at our USA central (HQ) technology team.

The base office for this position is in Birchwood Park, Warrington. You will be required to visit the office weekly.

Responsibilities

• Work across BAU operations and projects & programmes
• Design and deploy functional networks (LAN, WLAN, WAN)
• Configure and install software and network devices
• Monitor network performance and integrity
• Resolve support issues that have escalated by troubleshooting cloud and local infrastructure
• Automate tasks and monitor their effectiveness
• Create, oversee and test security measures (e.g. access authentication and disaster recovery)
• Communicate with users when needed
• Maintain complete technical documentation
• Suggest improvements to network performance, capacity and scalability
• Train and mentor other team members, to ensure cross-training / skilling

Requirements

• F5 and Cisco Meraki skills and experience
• Solid background in network administration and architecture
• In-depth understanding of communication protocols (mainly TCP/IP) and routing protocols (e.g. BGP)
• Familiarity with access control models and network security
• Knowledge of coding languages for scripting (e.g. Python, Perl) is an advantage
• Experience with network diagnostic, monitoring and analysis tools (e.g. SolarWinds)
• Solid understanding of network operating systems (Cisco NX-OS, IOS-XE)
• Proven experience with Palo Alto firewalls (Panorama, PAN-OS, LSVPN)
• Highly experienced troubleshooting skills
• Several years of experience working within a large enterprise estate (5,000+ users)
• Industry-related experience as a Senior Network Engineer or Network Administrator
• Professional certification (e.g. CCNP, CCDP) or proven knowledge on this level