Network Engineer – Wi-Fi & Network Infrastructure

NEOCI; Chesham; On-site; GBP 45,000 - 55,000; Full time

Benefits offered by this job

Company vehicle

Company pension scheme

30 days annual leave

Company laptop and mobile phone

Training and certifications

Job summary

NEOCI in Chesham, UK, is looking for an experienced Network Engineer to join our technical team. The role blends office work in Chesham with regular site visits to install, configure, test and support wired and wireless networks for customers.

You will deploy enterprise-grade Wi‑Fi and network infrastructure, take ownership from initial configuration to handover, troubleshoot live environments and provide clear guidance to clients while developing your skills through ongoing certifications.

Qualifications

• Hands-on experience installing and troubleshooting wired and wireless networks.
• Experience with enterprise-grade wireless and switching tech.
• On-site and customer-facing delivery ability.
• Ability to design, configure and test networks and document configurations.

Responsibilities

• Install, configure and commission enterprise networks at customer sites.
• Deploy wireless access points, switches, routers and firewalls.
• Conduct on-site testing, troubleshooting and performance optimization.
• Configure VLANs, routing, VPNs and security settings.
• Support WAN/SD-WAN deployments.
• Create network diagrams and documentation.

Skills

Excellent communication skills

Full UK driving licence

Networking fundamentals

On-site problem solving

Education

CCNA or Network+ certification

Tools

Ruckus

Aruba

Cisco

Fortinet

WatchGuard

Ekahau

SD-WAN

Job description

Our client is an established and growing technology solutions provider specialising in the design, deployment and support of enterprise-grade wireless and network infrastructure.

Working across a diverse range of sectors, including education, healthcare, construction, commercial property and the public sector, the business delivers secure, reliable and high-performance connectivity solutions to organisations throughout the UK.

Due to continued growth, they are looking to recruit an experienced, hands-on Network Engineer to join their technical team.

The Role

This is a varied, hands-on position combining office-based work in Chesham with regular visits to customer sites to install, configure, commission and support wired and wireless network solutions.

The successful candidate will have strong practical experience deploying enterprise-grade Wi-Fi and network infrastructure, with the ability to take ownership of installations from initial configuration through to testing, troubleshooting and successful handover.

We're particularly interested in engineers who are comfortable working on-site, solving real-world networking challenges and delivering reliable solutions in live customer environments.

Key Responsibilities:

• Install, configure and commission enterprise-grade wired and wireless networks at customer sites.
• Deploy and configure wireless access points, switches, routers, firewalls and associated networking equipment.
• Work with technologies including Ruckus, Aruba and Cisco.
• Carry out on-site testing, troubleshooting and performance optimisation.
• Configure VLANs, routing, VPNs and network security settings.
• Support WAN and SD-WAN connectivity deployments.

Network Design & Configuration

• Conduct Wi-Fi site surveys and produce survey reports.
• Assist with network design, hardware selection and solution planning.
• Create and maintain network diagrams, configuration records and technical documentation.
• Configure and optimise wireless networks to ensure coverage, performance and reliability.

Troubleshooting & Technical Support

• Diagnose and resolve wired and wireless connectivity issues.
• Troubleshoot network performance, stability and configuration problems.
• Provide second-line technical support to customers.
• Work with internal engineers, ISPs and technology vendors to resolve more complex issues.
• Carry out firmware updates, maintenance and network improvements.

Project Delivery & Customer Engagement

• Work closely with project managers and technical colleagues to deliver network installations.
• Attend customer sites and take responsibility for the technical delivery of networking projects.
• Communicate effectively with customers and provide technical guidance where required.
• Ensure installations are completed, tested and documented to a high standard.

Skills & Experience

• Proven experience working as a hands-on Network Engineer, ideally with experience deploying networks at customer sites.
• Strong practical experience installing, configuring, commissioning and troubleshooting wired and wireless networks.
• Experience with enterprise-grade wireless and switching technologies, ideally Ruckus, Aruba or Cisco.
• Good understanding of TCP/IP, VLANs, routing, VPNs and network fundamentals.
• Experience configuring and supporting switches, routers and firewalls.
• Ability to diagnose and resolve networking issues in live environments.
• Strong problem-solving skills and a practical, customer-focused approach.
• Excellent communication skills and the ability to work independently on-site.
• Full UK driving licence.
• CCNA, Network+ or equivalent networking certification.
• Experience with Fortinet, WatchGuard or Cisco firewalls.
• Experience with SD-WAN solutions.
• Knowledge of Wi-Fi survey tools such as Ekahau.
• Experience deploying networks within construction, education or temporary site environments.
• Additional vendor certifications, such as Ruckus RCSC or Aruba ACMA/ACMP.
• Experience with OSPF, QoS and traffic shaping.

What's on Offer?

• Competitive salary of £45,000 - £55,000 depending on experience.
• Up to 30 days' annual leave.
• Company pension scheme.
• Company vehicle for work-related travel.
• Company laptop, mobile phone and expenses card.
• Comprehensive training and ongoing professional development.
• Opportunity to gain additional technical certifications.
• Varied and interesting projects across multiple industries.
• Supportive, collaborative team environment.
• Team away days and company events.
• Opportunity to develop your career within a growing technology business.