Security Engineer - Detection & Response | Leading Global Investment Group in London

Security Engineer - Detection & Response | Leading Global Investment Group in London

London Full-Time No working from home possible
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At a Glance

  • Tasks: Shape the Detection & Response function from scratch in a cutting-edge security environment.
  • Company: Join a leading global investment group with a focus on innovation and technology.
  • Benefits: Competitive compensation package, hybrid working model, and opportunities for professional growth.
  • Other info: Collaborate with senior leadership and work in a dynamic, high-ownership culture.
  • Why this job: Make a real impact by building robust security capabilities in a fast-paced environment.
  • Qualifications: 3-5 years in detection engineering or security engineering with strong technical skills.

We’re representing a high-calibre quantitative investment firm building a new security function alongside a completely refreshed technology environment. This is a rare opportunity to shape Detection & Response properly from day one, rather than inherit a noisy SIEM, half-owned tooling and legacy processes. The role suits a deeply technical security engineer who understands systems at a low level, has strong opinions on telemetry and detection architecture, and can turn those opinions into production-grade capability. You’ll work closely with senior security leadership to design the data, tooling, automation and response foundations that protect a fast-moving investment platform.

Key Responsibilities

  • Define and build the firm’s Detection & Response capability across endpoint, network, cloud and internal infrastructure.
  • Design logging, telemetry and security data pipelines, including collection, enrichment, deduplication, storage and search.
  • Build and tune detections across canaries, honeypots, alerting, behavioural signals and response workflows.
  • Own detection infrastructure using IaC, CI/CD and software-engineering best practices.
  • Partner with infrastructure, engineering and operations teams to embed security into deployment and operating models.
  • Support broader security architecture across authentication, authorisation, certificate services and cloud controls.
  • Investigate security events, improve response playbooks and reduce noise through better signal design.
  • Make independent technical decisions that support a greenfield, fast-scaling security environment.

What You’ll Bring…

  • 3-5 years’ hands-on experience across detection engineering, incident response or security engineering.
  • Strong understanding of operating systems, networking, computer architecture and security fundamentals.
  • Proven ability to design security data collection strategies and build scalable telemetry pipelines.
  • Experience writing, tuning and maintaining detections across modern infrastructure and cloud environments.
  • Strong scripting or software-engineering ability, ideally with Python, Go, PowerShell or similar.
  • Experience managing security tooling, detections or infrastructure through IaC and CI/CD workflows.
  • Comfortable operating in fast-paced, high-ownership environments where priorities move quickly.
  • Strong communication skills, with the ability to explain security trade-offs to engineering and leadership teams.
  • (Preferred) Offensive security, red-team, exploit development or threat-research experience.
  • (Preferred) Exposure to statistics, signal processing, data science, electrical engineering or another rigorous technical discipline.

Security Engineer - Detection & Response | Leading Global Investment Group in London employer: Techfellow Limited

As a leading global investment group, we pride ourselves on fostering a dynamic and innovative work environment that empowers our employees to excel. With a competitive compensation package and a hybrid working model, we offer unparalleled opportunities for professional growth and development in the rapidly evolving field of security engineering. Join us to be at the forefront of shaping cutting-edge detection and response capabilities while collaborating with top-tier talent in a supportive and fast-paced culture.

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Contact Details:

Techfellow Limited Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Security Engineer - Detection & Response | Leading Global Investment Group in London

Tip Number 1

Network like a pro! Attend industry meetups, conferences, or even online webinars. You never know who you might bump into that could help you land that Security Engineer role.

Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those related to detection engineering and security automation. This gives potential employers a taste of what you can do.

Tip Number 3

Prepare for interviews by brushing up on technical questions and scenarios relevant to the role. Practice explaining your thought process clearly, especially around telemetry and detection architecture.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search.

We think you need these skills to ace Security Engineer - Detection & Response | Leading Global Investment Group in London

Detection Engineering
Incident Response
Security Engineering
Operating Systems Knowledge
Networking Skills
Computer Architecture Understanding
Security Fundamentals

Some tips for your application 🫡

Tailor Your CV:Make sure your CV reflects the skills and experiences that align with the role of a Security Engineer. Highlight your hands-on experience in detection engineering and incident response, and don’t forget to mention any relevant projects or achievements.

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re passionate about building Detection & Response capabilities. Share your thoughts on telemetry and detection architecture, and how you can contribute to our fast-moving investment platform.

Showcase Your Technical Skills:We want to see your technical prowess! Include specific examples of your experience with scripting languages like Python or Go, and any security tooling you've managed. This will help us understand your ability to design and build scalable telemetry pipelines.

Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. We can’t wait to see what you bring to the table!

How to prepare for a job interview at Techfellow Limited

Know Your Tech Inside Out

Make sure you brush up on your understanding of operating systems, networking, and security fundamentals. Be ready to discuss your hands-on experience with detection engineering and incident response, as this role demands a deep technical knowledge.

Showcase Your Problem-Solving Skills

Prepare to share specific examples of how you've designed security data collection strategies or built scalable telemetry pipelines. Highlight your ability to make independent technical decisions in fast-paced environments, as this will resonate well with the interviewers.

Communicate Clearly and Confidently

Practice explaining complex security concepts in simple terms. You’ll need to demonstrate your ability to communicate security trade-offs effectively to both technical and non-technical teams, so think about how you can convey your ideas clearly.

Be Ready for Technical Challenges

Expect some technical questions or challenges during the interview. Brush up on scripting languages like Python or Go, and be prepared to discuss your experience with IaC and CI/CD workflows. Showing your practical skills will set you apart from other candidates.