# IT Network Manager### Job IntroductionWe are seeking an IT Network Manager to join our team based from our Head Office in London Bridge (hybrid working)., so we’re celebrating our proud history and our bright future.**What you’ll do**You will provide inspirational leadership to your network team responsible for keeping Southeastern’s mission-critical network running smoothly across over 200 sites in the South East — including stations, depots, offices, and data centres. Our train operations depend on this network, so reliability and performance are key.As we finalise our transition from a legacy setup to a modern Fortinet SD-WAN infrastructure, you’ll play a vital role in shaping the future of our connectivity. This is your chance to be part of a major transformation journey ensuring that the new technology is fully optimised and deployed. Supporting the Head of IT, you will be accountable for the performance and security of the organisations network and work with our network circuit providers and core switch support partners to ensure network uptime is maximised whilst ensuring the integrity, security and performance of the network traffic is maintained. You will also lead on ad-hoc business projects as our network SME and play a vital role in IT governance.**The experience you’ll need**To be considered for this role we recommend you demonstrate the below in your application;* **SD-WAN experience** – ideally **Fortinet/Fortigate** (critical requirement).* Strong understanding of **networking fundamentals** and **implementations**.* Knowledge of **network security principles** and securing networks against threats.* Familiarity with **traffic management**, **performance monitoring**, and **automation**.* Awareness of **external threats** and ability to keep the network resilient.* Focus on **continual improvement** and leveraging full capability of existing kit.* Ability to **lead, coach, and develop** a team* Ability to balance **large workloads** and prioritise effectively.* Able to communicate clearly and manage stakeholder expectations.* Calm under pressure – can **drop everything in a crisis**and be hands on.As proud members of the Armed Forces Covenant and Disability Confident Scheme, we will offer you an interview if you apply under these schemes and meet the minimum criteria for the role. **.****Other things to know*** This vacancy may close early if we receive a large number of applications. So, make sure you get yours in early.* All offers of employment are subject to satisfactory references, a right to work verification, a basic criminal record check, and a pre-employment medical assessment. Work visa sponsorship isn’t available for this role.* If you applied but weren’t successful in getting a similar role at Southeastern, please wait six months before applying again.**.****What you’ll get in return**Along with your salary, the rewards you’ll get include:* a final salary pension* 25 days annual leave allowance (plus bank holidays)* free rail travel across our networks.Meaning you can feel secure in your career as well as fulfilled by your work. **.****A bit about Southeastern**We’re one of Britain's busiest train operators, serving London, Kent and parts of East Sussex. We run over 1,700 trains a day, carrying more than 500,000 passengers and serving 180 stations.However, working on our railway is more than getting passengers from A to B. It’s about all the little moments that make a difference to their journey.It’s also about making our railway a great place to work. With a team that represents the communities we serve. This is a journey we’re fully committed to and we’re proud to have been named a ‘Great Place to Work’ at the 2023 National Rail Awards and endorsed as a*Our ways of working are what we expect of everyone at Southeastern. They are powerful. Tiny moments, every day, from every one of us, add up to massive, positive change. Improving how it feels to work here and how it feels to travel with us.*At the heart of everything we do, our Safeguarding Team works to keep our customers, colleagues, and the public safe by improving safeguarding measures and knowledge making sure everyone gets home safe, every day.**.**SE Trains Limited### Attached documents| | || --- | --- || Salary | Up to £75,000 per annum plus free rail travel || Frequency | Annual || Job Reference | seastern/TP/125/3147 - FML/F/115 || Contract Type | Permanent - Full Time || Closing Date | 30 October, 2025 || Job Category | Management || Business Unit | Head Office || Location | 4 More London Riverside, London Bridge, United Kingdom || Posted on | 17 October, 2025 || OpenStreetMap contributorsDirections to### Spread the word
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