TLT LLP
Network and Infrastructure Engineer
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Role Purpose
Network and Infrastructure Engineer is responsible for the monitoring, support, security, and operational stability of the firm’s network, infrastructure, and core IT services. Operating within a regulated legal environment, this role places strong emphasis on service availability, security, vulnerability management, incident response, and regulatory compliance, ensuring systems remain resilient and available to support fee earners and business-critical legal services.
A key focus of the role is security and vulnerability remediation, requiring strong hands-on experience in identifying, tracking, and remediating vulnerabilities using industry-standard monitoring and security tools.
The role operates as a first and second line operational support function, acting as a point of escalation for the IT Service Desk and working closely with Network, Security, Applications, and Service Delivery teams, as well as third-party suppliers.
Key Responsibilities
Network, Infrastructure & Service Monitoring
- Monitor network, server, cloud, and security platforms using NOC and monitoring tools (e.g. dashboards, alerting, SIEM outputs).
- Identify, diagnose, and respond to incidents affecting:
- WAN, LAN, and Wi-Fi
- SD-WAN and VPN connectivity
- Firewalls
- Cloud connectivity and SaaS services
- Proactively investigate alerts to prevent service degradation or outages.
- Perform routine system health checks, maintenance, and operational validation.
Incident, Problem & Change Support
- Act as an escalation point for incidents and service requests from the IT Service Desk.
- Support incident resolution across network, infrastructure, and security domains, escalating where required.
- Identify recurring issues and contribute to problem management and continuous improvement.
- Support change windows, including:
- Pre-change readiness checks
- Post-change validation and assurance
- Work collaboratively with project teams to plan, test, and implement technical changes as required.
Security & Vulnerability Management
- Monitor for security-related events and collaborate closely with the Information Security and SOC function.
- Support vulnerability remediation activities, including:
- Coordinating and validating patching activities
- Tracking remediation actions and residual risk
- Supporting vulnerability scanning and reporting (e.g. Tenable)
- Assist with security incident response, diagnosis, containment, and remediation.
- Ensure operational practices align with firm security policies, ISO 27001, Cyber Essentials Plus, and client security requirements.
- Support access control verification, logging, audit evidence gathering, and compliance reviews.
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Operational Excellence & Documentation
- Maintain accurate and up-to-date documentation, including runbooks, operating procedures, and network diagrams.
- Recommend monitoring, tooling, or process improvements to improve service resilience and security.
- Support onboarding of new offices, network services, or infrastructure changes.
- Liaise with third-party suppliers and telecoms providers during incident and fault resolution.
- Share knowledge across the IT team, ensuring information is current, accessible, and reusable.
Skills, Knowledge & Experience
Essential Experience
- Proven experience in a NOC, network operations, or infrastructure support role.
- Experience supporting business-critical systems in a high-availability environment.
- Strong working knowledge of ITIL incident, problem, and change management.
- Hands-on experience with security monitoring and vulnerability remediation activities.
Technical Knowledge
Strong understanding of:
- TCP/IP, DNS, DHCP, routing, and switching
- LAN, WAN, and SD-WAN technologies
- Firewalls and VPN technologies
Experience with:
- Monitoring and alerting platforms and dashboards
- Security and vulnerability tools (e.g. Tenable, Microsoft Sentinel, SIEM platforms)
- Microsoft technologies, including:
- Windows Server and Windows 10/11
- Active Directory, Group Policy
- Microsoft 365 and Exchange Online
- SCCM and Intune
- Infrastructure and enterprise services, including:
- VMware (virtualisation and VDI)
- Palo Alto firewalls
- Email and security platforms (e.g. Mimecast, endpoint protection)
- Telephony, mobile device management, and AV solutions
- Cloud and hybrid technologies:
- Azure and/or AWS
- IaaS, PaaS, and SaaS services
- Hybrid and managed service environments
- End-user compute security, including patching and anti-virus.
Personal Attributes & Behaviours
- Calm, methodical, and effective under pressure.
- Strong attention to detail with a security-first mindset.
- Highly security conscious and confidentiality aware.
- Customer-focused, with a strong appreciation of the impact of IT on legal services.
- Clear and professional communicator with strong documentation skills.
- Willing to participate in out-of-hours support, on-call, or shift rotas where required.
Additional Information
- The role operates within a regulated legal environment and requires a strong understanding of confidentiality, integrity, and availability principles.
- The post holder will play a key role in supporting the firm’s cyber security posture, operational resilience, and compliance obligations.
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About TLT
Fast-paced, fast-growing, and forward-thinking, TLT is the law firm that helps clients stay one step ahead, and we do the same for our people.
With local, national, and international reach, we have over 1,800 people in offices across the UK and a network of partner firms across Europe, India, and the US. Over the last few years, TLT’s successful growth, delivery of high-quality work, and support for colleagues has been consistently recognised by The Times and at the Legal Business, The Lawyer, and British Legal Awards.
Our ambition is to create opportunities for what comes next for our clients, recognised as their 1st tier adviser and being valued for our values. We do this in our unique way by creating social value and a dynamic environment where our people are curious, creative, and ambitious for their success.
In our open and collaborative culture, we encourage everyone to be their whole self, to have a voice, and to contribute to the success of TLT.
Our Benefits
- We value our employees highly and we want you to feel valued. You’ll receive a competitive salary with an annual pay review.
- You will also have access to an extensive range of benefits via our flexible benefits scheme including 25 days holiday (which will increase to 30 days based upon length of service) and private medical insurance.
At TLT we have a progressive fully flexible working approach. We empower our people to work in a place and at a time that meets their needs, those of their clients, and of the wider team and firm. Part of this agile approach is a focus on hybrid working and supporting the work/life balance of our people.
TLT is committed to creating a diverse and inclusive working environment and encourages applications from all suitably qualified people, regardless of any of the characteristics protected by the laws in the locations in which we operate.
We welcome applications from people with disabilities and are committed to providing reasonable adjustments, where necessary, to make interviews and jobs more accessible. Should you have any difficulty during the recruitment process, require any reasonable adjustments, or an application to Access to work, please contact the recruitment team on Recruitment.Operations@TLTsolicitors.com
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