Senior Network Security Engineer for Scalable Platforms

G-Research; City Of London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Lunch provided

Barista bar

Monthly company events

Job summary

G-Research is seeking an experienced Network Security Engineer to design, implement and maintain high-performance, scalable network security systems in our London-based environment. You will partner with Security Architecture and core infrastructure teams to drive security across the platform that supports cutting-edge research and technology operations.

You will lead on security system design, system rollouts, audits, and incident escalations, with a focus on automation, scale, and reliability.

Qualifications

• Knowledge of security frameworks such as NIST, CIS or similar.
• Experience configuring and operating enterprise firewalls, including Fortinet and Palo Alto.
• Experience with Web proxy technologies and traffic inspection.
• Familiarity with F5 technologies, including LTM, ASM and APM.
• Strong understanding of deep packet inspection, core security engineering principles and modern attacker techniques.
• Solid knowledge of networking fundamentals, including TCP/IP, routing, switching and DNS.
• Experience with automation and scripting.
• Knowledge of privileged access management solutions.

Responsibilities

• Designing and implementing security systems
• Delivering high-quality designs and ensuring successful roll-out of strategic initiatives
• Partnering closely with Security Architecture to drive security roadmaps
• Working closely with wider core infrastructure teams to ensure alignment on infrastructure goals and configurations
• Conducting regular network security audits and ensuring compliance with internal standards and best practices
• Being the point of contact for escalations from the operations team
• Implementing change requests

Skills

Security frameworks (NIST/CIS)

Enterprise firewalls

Web proxy tech

F5 technologies (LTM/ASM/APM)

Deep packet inspection

Networking fundamentals (TCP/IP, DNS)

Automation & scripting

Privileged access management

Tools

Fortinet

Palo Alto

F5 Networks

Job description

G-Research is seeking an experienced Network Security Engineer to design, implement and maintain high-performance, scalable network security systems in our London-based environment. You will partner with Security Architecture and core infrastructure teams to drive security across the platform that supports cutting-edge research and technology operations.

You will lead on security system design, system rollouts, audits, and incident escalations, with a focus on automation, scale, and reliability.