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- Tasks: Lead and manage UK network operations while driving improvements in a large-scale ISP environment.
- Company: Join a dynamic team at a leading ISP with a focus on innovation and collaboration.
- Benefits: Competitive salary, professional development, and opportunities for career growth.
- Other info: Exciting opportunity to work with cutting-edge technology in a supportive team environment.
- Why this job: Make a real impact on network infrastructure and mentor the next generation of engineers.
- Qualifications: 10+ years in Network Engineering with leadership experience and strong technical skills.
The predicted salary is between 60000 - 80000 ÂŁ per year.
We are looking for an experienced Network Manager / Senior Network Engineer to take ownership of our UK network operations while contributing to the wider team.blue European backbone. This is a hands‑on leadership role combining deep technical expertise with people management responsibilities. Potentially leading a small team of Network Engineers (2–3) in the future, while remaining actively involved in the design, operation, and evolution of a large-scale ISP and data center network.
You will be responsible for the day‑to‑day management, performance, resilience, and scalability of the UK network infrastructure, while also supporting core backbone services across the broader team.blue group. This role requires a proactive, self‑starting individual who can quickly understand complex network environments, take operational ownership, and drive improvements across infrastructure, processes, and team capability. You will report directly to the Director of Networks.
Key Responsibilities- Own and operate the UK network infrastructure, ensuring high availability, performance, and resilience across POPs, transit, peering, and data center connectivity.
- Support the team.blue European backbone, contributing to the stability and evolution of a large‑scale, multi‑country ISP network.
- Lead network design, scaling, and lifecycle management, including capacity planning, upgrades, and infrastructure migrations.
- Drive routing and interconnection strategy, with ownership of BGP policy, traffic engineering, IP transit, and peering relationships.
- Act as the senior technical escalation point, leading complex incident resolution across routing, switching, and physical infrastructure.
- Lead and mentor a small team of Network Engineers, setting technical direction and operational standards.
- Collaborate with internal teams and external vendors, managing suppliers, troubleshooting carrier issues, and improving service delivery.
- Continuously improve network architecture and operations, enhancing resilience, observability, automation, and cost efficiency.
- 10+ years of experience in Network Engineering, with at least 3+ years in a senior or leadership role.
- Proven background in ISP, hosting, or service provider environments.
- Hands‑on experience designing, building, and operating a service provider core network (not only customer or access networks).
- Strong practical experience running internet‑scale routing and switching environments.
- Demonstrated ownership of BGP in production, including IP transit, peering, and routing policy control.
- Experience operating in or close to the default‑free zone (full routing tables) is strongly preferred.
- High ownership mentality, proactive in taking responsibility and driving issues to resolution.
- Strong collaborator with a team‑first mindset, working effectively across technical and non‑technical teams.
- Clear communicator with the ability to explain complex network concepts simply and effectively.
- Ability to mentor, coach, and develop engineers, sharing knowledge and raising team capability.
- Routing & Core Networking
- Expert knowledge of TCP/IP and the OSI model.
- Strong experience with BGP in production environments (policy control, traffic engineering, communities, default‑free zone).
- Experience operating internet‑scale networks with full routing tables.
- Experience with IP transit, peering, and route‑servers.
- Solid understanding of OSPF and/or IS‑IS.
- Experience operating MPLS networks (LDP/RSVP).
- Platforms & Infrastructure
- Strong hands‑on experience with Juniper MX and QFX/EX platforms (Juniper experience strongly preferred).
- Experience with multi‑vendor environments (e.g. Cisco, Nokia, Arista).
- Experience designing and operating service provider core, WAN, and data center networks.
- Familiarity with EVPN‑VXLAN, MC‑LAG, or Virtual Chassis is an advantage.
- Experience with network lifecycle management (build, migration, upgrades).
- Internet & Peering Ecosystem
- Experience with IP transit, peering, and IXPs (e.g. LINX, AMS‑IX).
- Knowledge of RIPE policies, IP address management, and routing registries.
- Familiarity with tools such as PeeringDB.
- Operations & Network Reliability
- Advanced troubleshooting across routing, switching, and physical infrastructure.
- Experience with DDoS detection and mitigation.
- Familiarity with flow technologies (NetFlow, IPFIX, J‑Flow) and monitoring platforms.
- Strong understanding of IPv4, with working knowledge of IPv6.
- Physical & Optical Networking
- Understanding of optical networking, transceivers, and fiber infrastructure.
- Experience troubleshooting carrier circuits and data center connectivity.
- DWDM / OTN knowledge is an advantage.
- Commercial & Vendor Management
- Experience working with vendors and suppliers (technical and commercial).
- Involvement in vendor selection, support management, and cost optimization.
At any stage please be prepared to provide proof of eligibility to work in the UK. Unfortunately, we are unable to support Sponsorship Visas.
Network Manager in London employer: team.blue
Contact Detail:
team.blue Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Network Manager in London
✨Tip Number 1
Network with industry professionals! Attend meetups, webinars, or conferences related to network engineering. This is a great way to make connections and learn about job openings that might not be advertised.
✨Tip Number 2
Show off your skills in practical settings. Consider setting up a home lab or contributing to open-source projects. This hands-on experience can really impress potential employers and show them you’re the real deal.
✨Tip Number 3
Prepare for interviews by brushing up on technical concepts and common scenarios in network management. Practice explaining complex ideas simply, as communication is key in this role. We want to see how you can break down intricate topics!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are proactive and take the initiative to reach out directly.
We think you need these skills to ace Network Manager in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Network Manager role. Highlight your experience in network engineering, especially in ISP environments, and showcase any leadership roles you've held. We want to see how your skills align with our needs!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background makes you the perfect fit. Don’t forget to mention your hands-on experience and your proactive approach to problem-solving.
Showcase Your Technical Skills: Be sure to highlight your technical expertise in areas like BGP, TCP/IP, and network lifecycle management. We love seeing specific examples of how you've tackled complex network challenges in the past, so don’t hold back!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at StudySmarter!
How to prepare for a job interview at team.blue
✨Know Your Network Inside Out
Make sure you brush up on your knowledge of TCP/IP, BGP, and the OSI model. Be ready to discuss your hands-on experience with Juniper MX and QFX/EX platforms, as well as any multi-vendor environments you've worked in. This role is all about technical expertise, so showing that you can talk the talk will impress the interviewers.
✨Showcase Your Leadership Skills
Since this position involves leading a small team, be prepared to share examples of how you've mentored or coached others in the past. Highlight your ability to set technical direction and operational standards, and discuss how you've driven improvements in team capability. They want to see that you can inspire and elevate those around you.
✨Demonstrate Problem-Solving Prowess
Expect to face some scenario-based questions where you'll need to demonstrate your troubleshooting skills. Prepare to explain how you've resolved complex incidents in routing, switching, or physical infrastructure. Use specific examples from your experience to illustrate your thought process and the steps you took to achieve resolution.
✨Communicate Clearly and Confidently
This role requires clear communication, especially when explaining complex network concepts. Practice articulating your thoughts simply and effectively. You might even want to prepare a few key points or analogies that can help convey your ideas during the interview. Remember, they want to see that you can bridge the gap between technical and non-technical teams.