Cyber Security Engineer - Banking & Finance

Hamilton Barnes Associates Limited; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global quantitative trading firm is seeking a Cyber Security Engineer with 2-4 years’ experience to manage security projects in a vendor-agnostic environment. This fully onsite role involves incident response, automation, and securing cloud infrastructures, offering exposure to cutting-edge security challenges.

Qualifications

• 2-4 years’ experience in security engineering with hands-on technical expertise.
• Strong understanding of networking, firewalls, infrastructure, and security automation.
• Consulting experience with multiple project management.

Responsibilities

• Own security projects from design to execution.
• Engage in incident response, security assessments, and remediation.
• Collaborate with teams to communicate security needs effectively.

Skills

Security engineering

Networking

Infrastructure

Security automation

Incident Response

Cloud security

Job description

A global quantitative trading firm specializing in algorithmic and high-frequency trading (HFT) is hiring a Cyber Security Engineer (2-4 years’ experience) to operate in a broad, vendor-agnostic security environment.

This fully onsite role (5 days per week) offers exposure to cutting-edge security challenges across multiple domains.

This is an opportunity to deep-dive into security engineering, incident response, and automation in a high-impact role. If you're a technically strong, hands-on engineer looking for broad exposure and real security challenges, we want to hear from you!

Responsibilities

• Owning security projects end to end – from design to execution
• Engineering, automating, and securing infrastructure, networks, and cloud environments
• Hands-on engagement in Incident Response, security assessments, and remediation
• Working across networking, firewalls, and security (Palo Alto, Fortinet, all major cloud providers)
• Building and automating with Terraform, Ansible, Golang, Python, HashiCorp
• Leveraging offensive security knowledge (OSCP, Hack The Box, pentesting, SQL injection, homelabbing)
• Collaborating with multiple teams and communicating effectively across the business

Skills & Requirements

• Security engineering experience (2-4 years) with hands-on technical expertise
• Consulting experience – ability to manage multiple projects and engagements
• Strong understanding of networking, firewalls, infrastructure, and security automation
• Experience with on-prem data centers, Kubernetes, and cloud security (AWS, Azure, GCP)
• Red Team & Purple Team knowledge is a massive advantage
• Vendor-agnostic mindset – we use a broad range of technologies
• Passion for homelabbing, hacking, and learning

Budget:

• Open – looking for the right person

Location:

• Fully onsite (5 days a week, some flexibility)