Senior Network Security Engineer - Trading Systems

Client Server; London; On-site; GBP 150,000 - 300,000; Full time

Job summary

A leading company in the trading sector is looking for a Senior Network Security Engineer in London, offering a salary up to £300k and opportunities for professional growth. In this role, you will manage and enhance network security systems while collaborating with a talented team on complex technical challenges.

Benefits

Free breakfast and lunch

25 days holiday

Pension

Opportunities for continual learning

Qualifications

• Strong network security experience, including firewalls and SASE.
• Experience with packet analysis tools such as tcpdump and Wireshark.
• Collaborative with strong communication skills.

Responsibilities

• Lead in operating production network security environments.
• Oversee network security changes in hybrid and multi-cloud.
• Implement automated and scalable security systems.

Skills

Network Security

Multi-vendor Firewalls

SASE

CASB

Packet Decoding

Wireshark

Data Center Experience

AWS

Job description

Senior Network Security Engineer - Trading Systems, London

Client:

Client Server

Location:

London, United Kingdom

Job Category:

Other

-

EU work permit required:

Yes

Job Reference:

c6799adff677

Job Views:

4

Posted:

29.06.2025

Expiry Date:

13.08.2025

Job Description:

Senior Network Security Engineer London to £150k

Do you have expertise with Network Security?

You could be progressing your career in a senior, hands-on role at a global systematic trading firm.

As a Senior Network Security Engineer you will take a lead role in operating existing production network security environments such as firewalls, SASE, CASB and Proxy, oversee network and network security changes in hybrid, multi-cloud and on-prem environments and provide subject matter expertise on network security across engineering teams, implementing automated and scalable security systems, processes and controls.

There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible.

Location / WFH:

You'll join colleagues based in high spec offices with free breakfast and lunch at the onsite restaurant, with flexibility to work from home two days a week.

About you:

• You have strong network security experience including multi-vendor firewalls with exposure to modern network solutions such as SASE, CASB, Proxies, L7 rule adoption
• You have a deep understanding of systems, networking and security engineering concepts
• You have experience of protecting and safeguarding data and assets on the network level
• You have experience with packet decoding and analysis tools such as tcpdump and Wireshark
• You have Data Center and colocation experience
• Ideally you will also have AWS experience although this isn't essential
• You're collaborative with excellent communication skills

What's in it for you:

As a Senior Network Security Engineer you will earn a competitive package:

• Salary to £300k
• Pension
• 25 days holiday
• Opportunity to work on Greenfield systems at the cutting
• Continual learning and development opportunities

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Created on 29/06/2025 by TN United Kingdom