Senior Network Engineer - System (Contractor)

Location: Milton Keynes, 5 days a week

Contract length: 10-months

IR35: Inside

Start Date: ASAP

As the UK’s largest fibre-only network, and its only proven wholesale challenger, we’re busy setting new standards for what digital infrastructure can and should be. Designed from scratch for the internet, our network is greener, more reliable and ready for the future. The products we provide over it not only lead the market on speed, value and service, they help businesses to innovate, provide entire communities with a better foundation for their digital lives and support economic growth, locally and nationally.

Job Description

We’re looking for a Senior Network Engineer - Systems contractor to join our team on-a 10-month basis. This role is critical to delivering secure, scalable, and high-performing digital infrastructure that keeps people connected. You’ll lead the full lifecycle of network solutions, applying your expertise to solve complex challenges and drive innovation. If you’re passionate about making a real impact in a collaborative, forward-thinking environment, we’d love to hear from you.

What you’ll be doing:

• Lead the design and delivery of secure, scalable network solutions that support millions of users across the UK
• Collaborate with cross-functional teams to solve complex technical challenges and bring innovative ideas to life
• Manage the full lifecycle of active network components, ensuring everything runs smoothly from concept to implementation
• Use your expertise to guide best practices, mentor others, and contribute to a culture of continuous improvement
• Work with cutting-edge technologies in areas like automation, security, and fibre infrastructure to shape the future of connectivity

What you’ll bring to the role:

• A deep understanding of network technologies and a passion for building reliable, high-performance infrastructure
• Confidence in solving complex problems and making thoughtful decisions that benefit both the team and the wider business
• A collaborative mindset, ready to share knowledge and support others while leading projects with clarity and purpose
• Strong communication skills that help translate technical ideas into meaningful solutions for colleagues and stakeholders
• A proactive, self-motivated approach with a focus on continuous improvement and delivering results that make a real impact

Qualifications

• Specialist depth and breadth of network engineering at scale in one or more of the following areas: Access Core DWDM Automation Security
• Excellent understanding of layer 2 and 3 technologies, with a focus on Ethernet, CoS and QoS, MPLS, IPv4 and IPv6
• Experience of mixed vendor environments, product life cycle, and technology migrations

Additional Information

CityFibre is partnering with Talent Works to manage our contingent worker vacancies. If you are successful in your application, you will be engaged by Talent Works to work on assignment at CityFibre. We want to create a sense of belonging for everyone. We celebrate our differences and work to ensure everyone has the best chance to succeed, starting with our recruitment process. No matter your background, family or carer status, ethnicity, sexual orientation, religion, age, disability, gender, or gender identity, we welcome your application. If you need any support or reasonable adjustments throughout the application process, please email us at careers@cityfibre.com. We want to help!