Senior Security Engineer in London

Senior Security Engineer in London

London Full-Time 60000 - 75000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead threat hunting and incident response in a dynamic SOC environment.
  • Company: Respected UK regulatory organisation with a focus on security operations.
  • Benefits: Hybrid work model, competitive salary, and opportunities for professional growth.
  • Why this job: Shape the future of security architecture while making a real-world impact.
  • Qualifications: Experience in SOC environments and expertise in Microsoft Sentinel and Azure security.
  • Other info: Join a team that values innovation and offers excellent career advancement.

The predicted salary is between 60000 - 75000 ÂŁ per year.

I’m working with a highly respected, UK regulatory organisation building out their in‑house Security Operations capability following a transition away from an outsourced SOC. This is a hands‑on Senior Security Engineer role with strong influence across architecture, ideal for someone who enjoys threat hunting, incident response, and working across Azure security tooling in a complex, regulated environment.

The Role

You’ll act as a senior escalation point across the SOC (2nd/3rd line), working closely with analysts while also contributing to the ongoing evolution of the security architecture. This is a busy, high-impact environment where you’ll need to make rapid, informed decisions in response to threats, while proactively improving detection and response capabilities.

What You’ll Be Doing

  • Acting as a technical escalation point for security incidents (2nd/3rd line)
  • Leading threat hunting activities using KQL across Microsoft Sentinel
  • Supporting incident response and rapid triage of security events
  • Working closely with the SOC team to strengthen detection and response
  • Contributing to the design and improvement of Azure security architecture
  • Investigating and resolving network security‑related issues
  • Driving improvements across a hybrid (cloud + on‑prem) environment

Tech Environment

  • Microsoft Sentinel (well established)
  • Entra ID / Active Directory (hybrid)
  • Microsoft security stack (Defender, etc.)
  • Hybrid infrastructure (cloud + on‑prem)

What They’re Looking For

  • Strong experience in a SOC environment (2nd/3rd line / escalation level)
  • Hands‑on expertise with Microsoft Sentinel + KQL (essential)
  • Proven threat hunting and incident response capability
  • Solid background in Azure security (not multi‑cloud)
  • Strong understanding of network security principles (LAN/WAN/Wi‑Fi)
  • Experience working in regulated environments (e.g. government, finance, etc.)
  • Background in project‑based delivery, not just BAU

Why It’s Interesting

  • Recently brought SOC in‑house — lots of opportunity to shape and improve
  • Blend of hands‑on engineering + architectural input
  • Exposure to a complex, regulated environment with real‑world impact
  • Working with modern Microsoft security tooling in a cloud‑first (Azure) setup

If you’re a Senior Security Engineer who enjoys being close to the action but still influencing the bigger picture, this is a great opportunity to step into a high‑visibility role.

Senior Security Engineer in London employer: LT Harper Recruitment Group

Join a highly respected UK regulatory organisation that values innovation and employee growth, offering a dynamic work culture where your expertise in security can truly make an impact. With a hybrid working model based in London or Manchester, you will have the opportunity to shape the future of their in-house Security Operations while enjoying a supportive environment that encourages professional development and collaboration. This role not only allows you to engage in hands-on engineering but also to contribute to architectural advancements in a complex, regulated setting, making it an ideal place for those seeking meaningful and rewarding employment.
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Contact Detail:

LT Harper Recruitment Group Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Security Engineer in London

✨Tip Number 1

Network, network, network! Reach out to your connections in the security field, especially those who work with Azure or in SOC environments. A friendly chat can lead to insider info about job openings that might not even be advertised yet.

✨Tip Number 2

Show off your skills! If you’ve got experience with Microsoft Sentinel and KQL, consider creating a mini-project or case study to demonstrate your threat hunting capabilities. Share it on LinkedIn or during interviews to really stand out.

✨Tip Number 3

Prepare for the technical interview! Brush up on your incident response scenarios and be ready to discuss how you’d handle specific threats. Practising with mock interviews can help you articulate your thought process under pressure.

✨Tip Number 4

Don’t forget to apply through our website! We’re always on the lookout for talented individuals like you. Plus, applying directly can sometimes give you a better chance of getting noticed by hiring managers.

We think you need these skills to ace Senior Security Engineer in London

Threat Hunting
Incident Response
Microsoft Sentinel
KQL
Azure Security
Network Security Principles
SOC Experience (2nd/3rd Line)
Active Directory
Hybrid Infrastructure Management
Regulated Environment Experience
Security Architecture Design
Rapid Decision-Making
Technical Escalation
Problem-Solving Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV speaks directly to the role of Senior Security Engineer. Highlight your experience with Microsoft Sentinel, KQL, and Azure security. We want to see how your skills align with what we’re looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for threat hunting and incident response, and explain why you’re excited about joining our team. Let us know how you can contribute to shaping our in-house SOC.

Showcase Relevant Experience: When detailing your work history, focus on your hands-on experience in a SOC environment. We’re particularly interested in your 2nd/3rd line expertise and any project-based delivery you've been involved in. Make it easy for us to see your impact!

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of applications and ensures you don’t miss out on any important updates. Plus, it’s super easy!

How to prepare for a job interview at LT Harper Recruitment Group

✨Know Your Tech Inside Out

Make sure you’re well-versed in Microsoft Sentinel and KQL. Brush up on your Azure security knowledge, as you'll likely be asked to discuss specific scenarios where you've used these tools effectively.

✨Showcase Your Threat Hunting Skills

Prepare to share examples of your threat hunting experiences. Think about the methodologies you’ve used and be ready to explain how you’ve improved detection and response capabilities in previous roles.

✨Understand the Regulatory Landscape

Since this role is within a regulated environment, it’s crucial to demonstrate your understanding of compliance and security principles. Familiarise yourself with relevant regulations and be prepared to discuss how they impact security operations.

✨Be Ready for Scenario-Based Questions

Expect questions that put you in real-world situations. Practice articulating your thought process when responding to security incidents or designing security architecture, as this will showcase your problem-solving skills.

Senior Security Engineer in London
LT Harper Recruitment Group
Location: London

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