Charles Russell Speechlys
Lead Network Engineer
London
Posted about 12 hours ago
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Lead Network Engineer
The Lead Network Engineer will provide hands-on technical leadership for the design, operation, security, and continual improvement of the firm’s network infrastructure across office, data centre, cloud, and remote access environments. The role owns network standards, resilience, service performance, risk management, supplier coordination, and the delivery of network-related change.
Network Operations
- Lead the implementation, support, and lifecycle management of network services across office, data centre, cloud connectivity, wireless, and remote access environments.
- Maintain secure, resilient, and scalable network services aligned to business requirements, client expectations, and regulatory obligations.
- Support disaster recovery testing, failover validation, and availability improvement for critical network services.
- Monitor network performance, identify risks, resolve complex incidents, and drive continual service improvement.
- Maintain operational procedures, implementation plans, and technical documentation to support controlled and repeatable delivery.
- Comply with relevant legal and regulatory obligations, including the Solicitors Regulation Authority (SRA) Standards and Regulations and Principles.
Strategy and Architecture
- Shape and maintain the technical roadmap for network services, ensuring alignment with the firm’s technology strategy, security requirements, and resilience objectives.
- Own network standards, reference architectures, and design principles across office, data centre, cloud, wireless, and secure access services.
- Provide architectural assurance for projects, office moves, cloud adoption, and supplier-led changes, ensuring risks and operational impacts are understood.
- Evaluate emerging technologies and vendor roadmaps to improve automation, observability, resilience, security, and operational efficiency.
Leadership
- Provide technical leadership, mentoring, and guidance to network engineers, junior colleagues, and wider IT teams.
- Work closely with Information Security, Security Operations, Cloud Operations, Service Delivery, and Infrastructure teams to ensure network services remain secure, supportable, and aligned to wider priorities.
- Support planning, prioritisation, and budget input for network lifecycle, licensing, service improvement, and project requirements.
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Operational Excellence and Service Management
- Operate network services in line with ITIL-aligned incident, problem, change, release, and configuration management practices.
- Act as a senior escalation point for complex incidents, coordinating root cause analysis, corrective action, and stakeholder communication.
- Maintain effective monitoring, alerting, and reporting to identify service degradation, capacity constraints, security events, and availability risks.
Security and Risk Management
- Embed security-by-design across network architecture, operations, and project delivery.
- Support Secure Service Edge (SSE) and Secure Access Service Edge (SASE) capabilities for secure access to internet, SaaS, cloud, and private applications.
- Partner with Information Security on risk management, audit readiness, vulnerability remediation, and compliance requirements, including ISO 27001, GDPR, and CIS Controls.
- Support network-related security incident investigation, containment, remediation, and lessons learned.
Stakeholder and Vendor Management
- Act as a senior technical escalation point for network infrastructure issues, risks, and decisions.
- Translate business requirements into secure, supportable, and cost-effective network solutions.
- Manage technical engagement with network suppliers, managed service providers, and service partners, including performance, escalation, and delivery assurance.
Key Skills and Experience
Essential
- Significant hands-on experience in a senior or lead network engineering role within a complex enterprise environment.
- Deep knowledge of enterprise networking, including Layer 2/3, switching, routing, VLANs, segmentation, high availability, wireless, and troubleshooting.
- Strong experience with Cisco enterprise technologies, including Catalyst, Nexus, Cisco ISE, RADIUS, TACACS+, 802.1X, and access control policies.
- Proven experience with network security and secure access technologies, including Palo Alto, Fortinet FortiGate, Prisma Access, SD-WAN, SSE, and SASE concepts.
- Required experience designing, implementing, and supporting Microsoft Azure networking, including virtual networks, subnets, NSGs, route tables, UDRs, private DNS, and hybrid connectivity.
- Experience supporting network resilience, high availability, disaster recovery testing, monitoring, and observability across enterprise LAN, WAN, wireless, data centre, and cloud services.
- Experience producing and maintaining HLDs, LLDs, standards, implementation plans, and operational documentation.
- Solid understanding of IT service management disciplines, including incident, problem, change, release, and configuration management.
- Excellent communication skills, with the ability to explain complex networking principles clearly to technical and non-technical audiences.
- Experience with network automation, scripting, infrastructure as code, or configuration management tooling.
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Advantageous
- Relevant Cisco, security, or cloud certifications, such as CCNA, CCNP, PCNSE, NSE, or Microsoft Azure certifications.
- Experience maintaining, troubleshooting, and supporting Wireless LAN Controllers and associated enterprise Wi-Fi networks.
- Experience configuring and maintaining Cisco 9800 Wireless LAN Controllers and/or Cisco Meraki wireless networking.
- Experience working in a professional services, legal, or similarly regulated environment.
- Knowledge of LogicMonitor or Solarwinds monitoring and observability platforms.
Person Specification
- Analytical, methodical, and calm under pressure, with sound judgement when resolving complex technical issues.
- Proactive and ownership-focused, with the ability to prioritise competing demands and deliver work to agreed standards.
- Committed to continuous improvement, automation, knowledge sharing, and self-development.
- Collaborative and service-focused, with strong communication and stakeholder engagement skills.
- Professional and detail-oriented, with an appreciation of the standards expected in a client-focused professional services environment.
Competencies
- Working together
- Integrity and respect
- Inclusive
- Personal impact and growth
- Driving high standards
- Commercial mindset
- Client-centric
- Responsible Business
Hybrid working
- We adopt a hybrid and flexible working approach, dependent on the requirements of the role and subject to manager approval.
For a detailed specification, please download the job description in the documents section of this page.
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Skills
Network Engineering
Cisco Catalyst
Cisco Nexus
Cisco ISE
Palo Alto
Fortinet FortiGate
Microsoft Azure Networking
SD-WAN
SASE
SSE
Layer 2/3 Switching
Routing
Network Automation
ITIL
Disaster Recovery
Network Security
Location