Network Security Engineer: Scale Secure, Automated Networks

G-Research; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading quantitative finance research firm in London seeks an experienced Network Security Engineer to design and maintain scalable network infrastructure. This role involves implementing security systems, conducting audits, and collaborating with infrastructure teams. Ideal candidates should have deep technical expertise in enterprise firewalls, automation, and networking fundamentals. The firm offers competitive compensation, excellent work-life balance, and an inclusive environment that values diverse perspectives.

Benefits

Highly competitive compensation

30 days' annual leave

Comprehensive healthcare and life assurance

Cycle-to-work scheme

Monthly company events

Qualifications

• Experience with security frameworks like NIST or CIS.
• Ability to configure and operate enterprise firewalls.
• Knowledge of web proxy technologies and traffic inspection.
• Understanding of modern security engineering principles.

Responsibilities

• Design and implement security systems.
• Deliver high-quality designs for strategic initiatives.
• Align with Security Architecture on security roadmaps.
• Conduct regular network security audits.

Skills

Security frameworks such as NIST, CIS

Configuring and operating enterprise firewalls

Web proxy technologies and traffic inspection

F5 (LTM / ASM / APM)

Deep packet inspection and security principles

Networking fundamentals (TCP/IP, routing, DNS)

Automation and scripting

Privileged Access Management solutions

Job description

A leading quantitative finance research firm in London seeks an experienced Network Security Engineer to design and maintain scalable network infrastructure. This role involves implementing security systems, conducting audits, and collaborating with infrastructure teams. Ideal candidates should have deep technical expertise in enterprise firewalls, automation, and networking fundamentals. The firm offers competitive compensation, excellent work-life balance, and an inclusive environment that values diverse perspectives.