IT’S WHAT WE DO

MLL Telecom is the UK’s leading Cross-Technology Network Integrator, spanning Fixed, Radio, and Mobile 4/5G technologies. Our mission is to underpin the communication strategies of our customers by ensuring their network infrastructures are optimally designed, developed, and maintained in a fast-changing environment.
We architect and manage some of the most complex and secure Data/Voice networks in the Public Sector and Mobile Network Operator markets.
Our Public Sector team delivers critical network services to local governments, the NHS and Emergency Services, acting as a trusted partner in transitioning NHS sites to a new health-dedicated network environment.
Currently, we are the Key Delivery Partner in over 15 major UK network deployments, enabling communication between millions of users across businesses, the public sector, and communities.

YOUR AREAS OF KNOWLEDGE AND EXPERTISE

• Proven experience in network engineering and cybersecurity roles
• Relevant certifications equivalent to CCNP, PCNSE
• Strong knowledge of networking protocols (TCP/IP, BGP, OSPF, STP etc.)
• Hands-on experience with firewalls (e.g., Fortigate, Cisco ASA, Palo Alto), switches, and routers
• Proficiency with security tools (e.g., Splunk, Wireshark, Nessus, CrowdStrike)
• Experience with cloud networking and security (AWS, Azure, or GCP)
• Familiarity with compliance frameworks (ISO 27001, NIST, GDPR, etc.)
• Excellent problem-solving and communication skills
• A full UK driving licence

ABOUT THE ROLE

We are seeking a highly skilled and experienced Senior Network and Security Engineer to join our team. This role is critical in ensuring the stability, integrity, and security of the Royal Borough of Greenwich’s network and systems. You will be part of a dedicated team responsible for providing 3rd Line Technical Support for the Royal Borough of Greenwich network along with Network design, planning, testing, implementation and assistance in the maintenance of all routers, switches, wireless access points and firewalls to ensure optimum performance at all times

RESPONSIBILITIES

• Network design, planning, testing, implementation and assistance in the maintenance of all routers, switches, WAPs and firewalls to ensure optimum performance at all times
• Monitor network performance and troubleshoot issues to ensure high availability and reliability
• Implement and maintain security solutions including firewalls, IDS/IPS, endpoint protection, and SIEM tools
• Conduct regular vulnerability assessments and penetration testing
• Lead incident response efforts and forensic investigations
• Develop and enforce network and security policies, procedures, and standards
• Collaborate with cross-functional teams to support secure application and infrastructure deployments
• Mentor junior engineers and provide technical leadership on projects
• Provide hands-on support for network installations, upgrades, and maintenance
• Perform routine network health checks and diagnostics
• Maintain accurate documentation of network configurations and changes
• Support the rollout of new sites and services across the customer estate
• Liaise with third-party vendors and service providers to resolve technical issues
• Assist in the configuration and deployment of network hardware (routers, switches, access points and firewalls)
• Ensure compliance with internal and external security and operational standards

ACCOUNTABILITY BUILDS TRUST

Accountability requires some kind of honest review to reflect how we are doing against our responsibilities. This is not simply about a contract or project plan, it is about a mindset, an air that is portrayed as ‘we have got this!’