Senior Network Engineer
Job in
London, Greater London, W1B, England, UK
Listed on 2026-02-13
Listing for:
Roc Technologies
Full Time
position Listed on 2026-02-13
Job specializations:
-
IT/Tech
Systems Engineer, Cybersecurity, Network Engineer, Network Security
Job Description & How to Apply Below
Job Title:
Senior Network Engineer
Location:
London/Hybrid
Employment Type:
Permanent
Salary: £55k-£70k DOE
About the Role
We are seeking an experienced Senior Network Engineer with deep expertise in Juniper and Palo Alto technologies to join our growing team. This is a hands‑on technical position where you’ll take ownership of designing, implementing, and supporting complex network infrastructures across enterprise environments.
You’ll work closely with architecture, security, and operations teams to ensure high availability, strong security posture, and continuous service improvement.
Key Responsibilities
* Design, implement, and optimise enterprise network solutions across multi‑site environments.
* Configure, maintain, and troubleshoot Juniper routing & switching platforms (EX, MX, QFX series).
* Manage, configure, and support Palo Alto NGFWs, including security policies, threat prevention, URL filtering, and Global Protect.
* Lead network migration, refresh, and enhancement projects.
* Monitor network performance, analyse capacity, and proactively address issues.
* Collaborate with security teams to implement best‑practice firewall and segmentation strategies.
* Maintain accurate network documentation including diagrams, configurations, and change records.
* Mentor junior engineers and act as SME for escalations.
Skills & Experience Required
Essential
* Extensive hands-on experience with Juniper routing/switching platforms.
* Strong proficiency with Palo Alto Networks firewalls and associated security technologies.
* Deep understanding of Layer 2 & Layer 3 protocols (BGP, OSPF, STP, VXLAN, EVPN etc.).
* Experience in designing and supporting large-scale enterprise or service provider networks.
* Knowledge of network security principles and best practices.
* Strong troubleshooting and packet‑level analysis skills.
* Experience with change control and ITIL processes.
Desirable
* Certifications such as JNCIP/JNCIE, PCNSE, CCNP/CCIE or similar.
* Knowledge of automation (Python, Ansible, Terraform).
* Exposure to SD-WAN, SASE or cloud networking (Azure/AWS).
* Experience with monitoring tools (Solar Winds, PRTG, Junos Space, Panorama).
What We Offer
* Opportunity to work with cutting-edge networking and security technologies.
* Career development, training, and certification support.
* Flexible working options.
* A collaborative environment where your expertise truly makes an impact
Position Requirements
10+ Years
work experience Additional Information / Benefits
Pension, Healthcare and Others
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