Security Engineer - Crowdstrike

Marlin Selection Ltd; London; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

A leading financial services company is looking for a Security Engineer to enhance their IT security team. This role offers an exciting opportunity to work with the latest cybersecurity tools and develop under experienced mentors. You will be responsible for monitoring security systems, managing incidents, and contributing to a secure environment. A hybrid work model is adopted, providing flexibility. Candidates should have relevant cybersecurity experience and be working towards established certifications.

Qualifications

• 2-5 years of experience in cybersecurity, managing security tools and platforms.
• Strong communication skills and eagerness to learn.
• Financial services or SOC experience preferred but not essential.

Responsibilities

• Monitor and respond to security alerts and incidents.
• Assist with vulnerability scanning and remediation.
• Manage systems such as email security and MFA.

Skills

Incident Response

Monitoring

Vulnerability Management

Cyber Security Awareness

Education

Certifications such as SC-200, SC-900, or OSCP

Tools

CrowdStrike

Mimecast

Duo

Tenable

Kali Linux

Job description

Job Title: Security Engineer
Location: London (Hybrid Working Available)
Salary: Competitive + Benefits

Are you an ambitious cybersecurity professional with 2–5 years of experience looking to step up in a high-impact role? We are seeking aSecurity Engineerto join a dynamic IT Security team within a leading financial services environment, where you'll have the opportunity to work with modern security tools, contribute to major initiatives, and develop under the guidance of experienced senior colleagues.

About the Role

Reporting to the IT Security Officer, you’ll work as part of a small, expert team responsible for protecting enterprise systems and data. This role offers hands-on involvement with a wide range of technologies—from endpoint detection and SIEM platforms to firewalls, MFA, and vulnerability management—providing a well-rounded foundation in enterprise security operations.

You'll gain exposure to advanced security practices, assist in running and responding to threat detection systems, and contribute to projects that strengthen security across the organisation.

Key Responsibilities

Monitor and respond to security alerts and incidents (EDR, SIEM, Identity Protection, SOAR).

Assist in vulnerability scanning and remediation activities.

Help manage systems such as email and web security gateways, VPNs, MFA, SSO, and mobile device security.

Support the maintenance of security certificates, PAM systems, and conditional access controls.

Contribute to Cyber Security Awareness Training and documentation.

Take part in ad-hoc IT security projects and initiatives.

Your Background

You should have a solid foundation in cybersecurity, with practical experience managing or supporting a range of tools and platforms in a corporate IT environment.

Experience with some of the following:

EDR platforms (e.g., CrowdStrike)

Email or web security gateways (e.g., Mimecast)

MFA / SSO (e.g., Duo, Okta)

Vulnerability scanners (e.g., Rapid7, Tenable, Nessus)

InTune and Conditional Access

Exposure to:

Imperva WAF

KnowBe4

Certificate management tools

Kali Linux toolset and penetration testing basics

Qualifications:

Working towards or holding certifications such as SC-200, SC-900, OSCP, or similar.

Strong communication skills and an eagerness to learn and grow.

Experience in financial services or a SOC environment is a plus but not essential.

Location & Work Pattern

Hybrid model: 3 days in the office, 2 days from home.

Shift coverage between 07:30 – 17:30.

Occasional weekend or out-of-hours work may be required.

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