Network Engineer

Indigo; Magor; Hybrid; GBP 42,000 - 62,000; Full time

Job summary

Indigo is seeking a Network Engineer to deploy, maintain and optimise network infrastructure across data centre and cloud environments. You will work with cross-functional teams to ensure availability, performance and security, and contribute to automation and continuous improvement initiatives.

The role is hybrid with three days in the office and participation in an on-call rota to support business and customer requirements. Strong CCNA knowledge and Fortinet experience are essential.

Qualifications

• CCNA-level networking knowledge required.
• Strong routing, switching and network security understanding.
• Experience with Fortinet firewalls and security technologies.
• Knowledge of VPNs, firewalls and monitoring tools.
• Linux administration and network diagnostic tooling familiarity.
• Scripting in Python or similar language.
• Knowledge of ITIL service management processes.
• Strong communication and documentation skills.

Responsibilities

• Deploy, configure and maintain network infrastructure across data centre and cloud environments.
• Troubleshoot routing, switching and security technologies in on-premise and cloud.
• Implement Fortinet-based security solutions, VPNs and firewall policies.
• Monitor performance, availability and capacity; address issues proactively.
• Develop automation and remediation scripts to improve efficiency.
• Support upgrades, patching and infrastructure projects.
• Assist data centre activities including rack installation and asset management.
• Maintain accurate network diagrams and procedures.
• Follow ITIL-aligned change, incident and problem processes.
• Provide Level 2 support to NOC and Security teams.
• Participate in on-call rota and occasional out-of-hours work.

Skills

CCNA

Routing & Switching

Network Security

Fortinet

VPNs

Linux

Python

ITIL

Communication

Documentation

Tools

Fortinet

Azure Networking

SQL Databases

Job description

We are looking for a Network Engineer to support the deployment, maintenance and optimisation of network infrastructure across data centre and cloud environments. Working with network, security and operational teams, you'll help ensure the availability, performance and security of critical infrastructure while contributing to network automation, monitoring and continuous improvement initiatives. This is a hybrid role, requiring three days per week in the office, and participation in an on-call rota to support business and customer requirements.

What You'll Do

• Deploy, configure and maintain network infrastructure, including routers, switches, firewalls and associated services.
• Support and troubleshoot routing, switching and network security technologies across on-premise and cloud environments.
• Implement and maintain Fortinet-based security solutions, VPNs and firewall policies.
• Monitor network performance, availability and capacity, identifying and resolving issues proactively.
• Develop and maintain automation and remediation scripts to improve operational efficiency.
• Support network upgrades, patching and infrastructure improvement projects.
• Assist with data centre activities, including rack installation, cabling and asset management.
• Maintain accurate technical documentation, network diagrams and operational procedures.
• Follow ITIL-aligned change, incident and problem management processes.
• Provide Level 2 support and technical guidance to NOC and Security teams.
• Participate in an on-call rota and support occasional out-of-hours activities.

Essential

What We’re Looking For

• Experience in a Network Engineer or similar networking role.
• CCNA-level networking knowledge.
• Strong understanding of routing, switching and network security principles.
• Experience with Fortinet firewalls and security technologies.
• Knowledge of VPNs, firewalls and network monitoring tools.
• Linux administration experience and familiarity with network diagnostic tools.
• Scripting experience using Python or a similar language.
• Knowledge of ITIL-based service management processes.
• Strong communication and documentation skills.
• Ability to work independently and collaboratively within a team environment.

Desirable

• CCNA certification.
• Fortinet NSE4 certification or equivalent.
• Experience with Azure networking.
• Familiarity with SQL databases and query languages.
• Experience working within data centre environments.
• Additional language skills.

At Indigo, we believe our greatest strength is our people. We're committed to creating an inclusive environment where everyone feels valued, respected and able to do their best work. We welcome applications from candidates of all backgrounds and make employment decisions based on skills, experience and potential. If you need any reasonable adjustments during the recruitment process, we're here to support you.

Indigo is a strategic operational partner for critical digital infrastructure. We help customers design, deploy, support and scale the infrastructure their businesses rely on, giving them greater control, consistency and confidence. Our teams work across subsea, terrestrial, wireless, data centre and NOC environments, bringing specialist expertise, 24/7 support, field services and managed services together under one accountable model.

Being part of Indigo means working in a business where operational excellence, customer trust and doing things properly matter. We support customers in complex, performance-critical environments, helping them reduce risk, protect performance and deliver with confidence. Our people are central to that mission, bringing the skill, responsiveness and accountability needed to support the next generation of digital infrastructure. As an Investors in People Gold accredited employer, we're committed to investing in the growth and development of our people.