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AfterDuty

Security Threat Specialist

G-Research · London, Greater London

Type
Full-time
Posted
12 days ago

Overview

Your threat assessment skills from policing apply, but this role demands deep technical cyber expertise.

About this role

Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips?

G-Research is a leading quantitative research and technology firm. We are proud to employ some of the best people in their field and to nurture their talent in a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded.

This role is based in our new Soho Place office – opened in 2023 - in the heart of Central London and home to our Research Lab.

The role

The Security Threat Specialist, working in collaboration with the business, will be responsible for both proactive and targeted threat and vulnerability identification for cyber and insider threats across the organisation. They will translate these findings into tactical fixes and help advise on the strategic remediation.

Key responsibilities of the role include

  • Performing in-depth reviews of systems and processes to identify security weaknesses and control gaps
  • Authoring technical security documentation, threat models, and implementation guidance across all security levels
  • Providing detailed technical design advice and security recommendations for applications, services, infrastructure, and processes
  • Collaborating with Cyber Security, Incident Response, and Vulnerability Assessment teams to validate findings and coordinate remediation
  • Supporting risk management decisions and identifying audit points to ensure compliance or detect compromise
  • Assisting developers and system administrators in designing and evaluating secure solutions
  • Automating threat hunting to maintain confidence in security posture
  • Developing and delivering training and awareness to improve security knowledge across the business
  • Driving secure-by-design improvements that balance security with user experience

Who are we looking for?

The ideal candidate will be a capable and hands-on contributor. You must be experienced and enthusiastic about your area of expertise with a demonstrable track record of excellence.

The ideal candidate will have the following skills and experience:

  • Demonstrable expertise in one of the major security specialist areas, such as penetration testing, incident response, endpoint security, network security, malware analysis or identity access management
  • Experience in Security Architecture or Security Risk Management
  • Practical experience of threat modelling and risk assessment of applications, services and infrastructure
  • Technical experience reviewing engineering designs and implementations, including code reviews, such as high level programming languages like yaml and json
  • Knowledge and a passion for information and technical security and its technologies
  • An interest in team and personnel-related matters as opposed to focusing solely on isolated challenges
  • Confident to make quick but justified commercial-based decisions

Behavioural Competencies

  • Collaboration: Works well with cross-functional teams, fostering a collaborative and supportive environment
  • Initiative: Proactively identifies opportunities for improvement and takes the necessary action to implement changes
  • Problem Solving: Capable of assessing complex security issues and devising effective response strategies
  • Communication: Excellent communication skills both upwards and downwards through a variety of media and with the ability to convey complex information to both technical and non-technical stakeholders

Why should you apply?

  • Highly competitive compensation plus annual discretionary bonus
  • Lunch provided (via Just Eat for Business) and dedicated barista bar
  • 30 days’ annual leave
  • 9% company pension contributions
  • Informal dress code and excellent work/life balance
  • Comprehensive healthcare and life assurance
  • Cycle-to-work scheme
  • Monthly company events

About cyber security & digital forensics roles for ex-police

Cyber security, digital forensics and incident-response roles. DMIs, cybercrime investigators and digital forensics officers bring evidential discipline and investigative judgement that DFIR and security teams struggle to hire.

See all cyber security & digital forensics jobs in London

Why this fits a police background

  • Incident command & response
  • Risk & threat assessment
  • Working to legislation & regulation

What cyber security & digital forensics roles pay ex-police

Advertised UK ranges, editorial estimates reviewed July 2026

Digital forensics analyst£32,000–£45,000
DFIR consultant£45,000–£65,000
Senior forensics / IR specialist£60,000–£80,000
Threat-intelligence specialist£55,000–£80,000
Full cyber security & digital forensics salary guide →

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