Salary: £29,000 - 55,000 per year Requirements: Experience with producing or maintaining Cyber security processes and procedures Experience with maintaining and configuring firewalls including Cisco and Juniper Experience of designing, building, testing and maintaining network equipment, including Switches, Routers and firewalls Experience of designing, building, testing and maintaining Windows Server architectures Experience of working in a London Underground Environment (desirable but not essential) Experience working with network support tools including network management systems and policy enforcement Experience working with Microsoft Sentinel SIEM HND or above in an engineering/Computer discipline or 5 years experience in a similar role Cisco CCNP or possibly CCNA with aspirations to complete the CCNP Any Security accreditation would be beneficial including CISSP or CompTIA CYSA ITIL foundation Effective communicator (both written and verbal) Proven experience within a networks or security infrastructure environment Demonstrable emotional intelligence to communicate effectively and positively with customers and colleagues in a challenging environment Responsibilities: Work with the network and security team focusing on building and maintaining network and security systems Produce system design documentation Create Cyber Security documentation and processes Support the creation of cyber security documentation to meet customers standards Support the project team to design, test and deliver network upgrades for our customers Provide technical support and continual improvement for rails cyber security approach Carry out network and security design works for our customer networks Provide a technical interface to the client as required Support the design and integration of the SIEM platform Support customer networks and systems to our rail customers Work with other teams to improve systems security and monitoring Technologies: Cisco Support ITIL Network Rails Security Windows System Engineer More: At Telent, we are currently seeking a Systems Engineer to join our Transport division, working in a hybrid model from our Canning Town office with one day a week on-site. You will be part of a small team supporting both projects and maintenance for London Underground and Network Rail systems. We offer industry-leading career opportunities and a comprehensive benefits package, including 33 days of holiday, a company pension scheme, family-friendly policies, an employee-funded car leasing scheme, and occupational health support. We are dedicated to diversity and inclusion and invite you to join our team. last updated 18 week of 2026