Network Engineer - L3
Claranet limited
Get more replies from employers
Send a job-specific resume in minutes.
Benefits offered by this job
Job summary
Claranet is seeking a Level 3 Network Operations Engineer to deliver advanced operational support and lifecycle maintenance across SDWAN, WAN, LAN/WLAN, VPN/SASE, and load‑balancing environments for regulated financial services clients.
You will lead complex incident resolution, change execution, and performance optimisation, ensuring compliance with security and regulatory standards. The role emphasizes engineering excellence and governance.
Qualifications
- 4+ years of hands-on network engineering in regulated/financial environments.
- Strong knowledge of SDWAN, VPN and load-balancing technologies.
- Experience with incident resolution, change management and performance optimization.
- Proven ability to produce audit-ready documentation for senior stakeholders.
Responsibilities
- Diagnose and resolve complex incidents across SDWAN, WAN, LAN/WLAN, VPN/SASE, and load-balancing platforms.
- Implement configuration changes using templates and security baselines with audit trails.
- Validate configurations, firmware posture, and compliance with standards.
- Support onboarding of new sites/services via ZTP and CI/CD pipelines.
- Manage routing policies, QoS, wireless tuning, and load-balancer updates.
- Collaborate with vendors to resolve escalated transport or device issues.
- Contribute to CMDB enrichment and asset reconciliation.
- Support risk assessments and regulatory-compliance activities.
- Produce operational reports and dashboards for stakeholders.
- Provide technical guidance to Level 2 engineers.
Skills
Tools
Job description
Founded at the beginning of the dot.com bubble in 1996, our CEO Charles Nasser had a light bulb moment to develop a truly customer‑focused IT business. Since then, Claranet has grown from an Internet Service Provider (ISP) in the UK to being one of the leading business modernisation experts, delivering solutions across 11+ countries. At Claranet, we’re experienced in implementing progressive technology solutions which help our customers solve their epic business challenges. We’re committed to understanding their problems, delivering answers quickly, and making a lasting impact to their business.
We offer an extensive benefits package that you can tailor to your needs, inclusive of a matching contribution pension scheme, healthcare, insurance, dental, discounted gyms and app‑supported benefit access.
Our vision is to become the most trusted technology solutions partner; renowned for being the best and brightest, having lasting impact with our customers and delivering exceptional returns to our stakeholders.
The Level 3 Network Operations Engineer delivers advanced operational support, configuration management, and lifecycle maintenance across the network estate for financial services clients. The role focuses on complex incident resolution, change execution, and performance optimisation for SDWAN, WAN, LAN/WLAN, VPN/SASE, and load‑balancing environments, ensuring all activities meet stringent regulatory, security, and compliance standards.
Provide expert technical leadership for diagnosing, resolving, and optimising complex network issues. Lead configuration management and compliance, support onboarding and automation initiatives, and drive continuous improvement within regulated environments.
- Diagnose and resolve complex incidents across SDWAN, WAN, LAN/WLAN, VPN/SASE, and load‑balancing platforms, ensuring compliance with financial services regulations.
- Implement network configuration changes using approved templates and security baselines, maintaining audit trails.
- Validate device configurations, firmware posture, and compliance with golden standards and sector‑specific requirements.
- Support onboarding of new sites/services using Zero‑Touch Provisioning (ZTP) and Infrastructure‑as‑Code pipelines.
- Manage routing policies, QoS, wireless performance tuning, and load balancer configuration updates.
- Collaborate with vendor management teams on escalated transport or device issues, ensuring regulatory requirements are met.
- Contribute to CMDB enrichment through topology validation and asset reconciliation.
- Support automated impact assessments and change risk analysis, with a focus on operational resilience.
- Participate in continuous service improvement (CSI) initiatives, such as monitoring optimisation and capacity analysis.
- Provide technical guidance and mentoring to Level 2 engineers.
- Ensure all network operations adhere to financial services regulations and frameworks (e.g., FCA, PRA, DORA, ISO 27001, SOC).
- Maintain documentation and audit trails for all changes, incidents, and compliance activities.
- Support risk assessments, compliance reviews, and operational audits as required.
- Integrate regulatory requirements and security controls into network designs and operations.
- Maintain accurate incident, request, and change records in ServiceNow.
- Produce and present operational reports, dashboards, and summaries for internal and customer stakeholders, highlighting compliance, risk management, and performance.
- Support governance initiatives including process improvement, risk analysis, and post‑implementation reviews.
- Advanced routing & switching (BGP/OSPF, ACLs, NAT)
- SDWAN technologies (e.g., Fortinet, Cisco)
- Wireless LAN operations and performance tuning
- Familiarity with F5 or equivalent load‑balancing platforms
- Exposure to automation or scripting (Python, Terraform, Ansible)
- Strong troubleshooting and analytical skills
- Experience with network compliance, configuration management, and infrastructure documentation
- Familiarity with automation frameworks and CI/CD for network configuration (Python, Terraform, Ansible)
- 4+ years’ hands‑on experience in network engineering, including advanced support and implementation for regulated/financial environments
- Strong understanding of network principles, design, operational environments, and compliance requirements
- Proven experience with complex incident resolution, change management, and performance optimisation
- Experience with data centre network technologies, cloud and security services (Azure, AWS, Load Balancing, DNS)
- Familiarity with ITSM workflows, SDWAN/VPN concepts, and ServiceNow
- SASE management (Fortinet / Netskope)
- Fluent written and spoken English is essential. The role requires the ability to produce audit‑ready documentation and communicate confidently with senior and executive level stakeholders
-
Essential:
- 4+ years’ hands‑on experience in network engineering, including advanced support and implementation for regulated/financial environments
- Strong understanding of network principles, design, operational environments, and compliance requirements
- Proven experience with complex incident resolution, change management, and performance optimisation
- Experience with data centre network technologies, cloud and security services (Azure, AWS, Load Balancing, DNS)
- Effective under pressure; strong written and verbal communication
- Familiarity with ITSM workflows, SDWAN/VPN concepts, and ServiceNow
- SASE management (Fortinet / Netskope)
- Fluent written and spoken English is essential. The role requires the ability to produce audit‑ready documentation and communicate confidently with senior and executive level stakeholders Highly Desirable:
- Experience in managed service or telecom environments, especially for financial services clients
- Hands‑on provisioning/troubleshooting with Voice technologies (Avaya, Cisco Call Manager)
- Relevant certifications (CCNP, Fortinet NSE5/7, Meraki ECMS2, F5)
- Experience with SolarWinds, Infoblox, Zero‑Touch Deployment, automation tools
-
Personal Attributes:
- Technical leader and mentor, passionate about advanced troubleshooting and optimisation
- Strong compliance and risk awareness, with attention to regulatory detail
- Standard business hours, with participation in an on‑call rota as required
- Occasional weekend engineering coverage will be required, typically limited to a small number of planned weekends per year, to support business continuity, resilience testing, or disaster recovery activities
'/%3e%3cpath%20d='M101.744%2012.4726L102.894%2016.1947L99.0021%2013.2201L101.744%2012.4726ZM105.3%208.40937H100.488L99.0026%203.59473L97.5116%208.41047L92.7%208.40385L96.5965%2011.3834L95.1055%2016.1942L99.0021%2013.2196L101.408%2011.3834L105.3%208.40992V8.40937Z'%20fill='white'/%3e%3cdefs%3e%3clinearGradient%20id='paint0_linear_5593_1381'%20x1='90'%20y1='9.44471'%20x2='99'%20y2='9.44471'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%2300AD70'/%3e%3cstop%20offset='0.998594'%20stop-color='%2300B67A'/%3e%3cstop%20offset='1'%20stop-color='%23DCDCE6'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e){kind=small}
