Principal Security Engineer (Network) - Finance in City of London
Principal Security Engineer (Network) - Finance

Principal Security Engineer (Network) - Finance in City of London

City of London Full-Time 112500 - 137500 £ / year (est.) Home office (partial)
Lawrence Harvey

At a Glance

  • Tasks: Design and build security automation for cloud infrastructure and modern engineering environments.
  • Company: Dynamic finance company in London with a focus on innovation and security.
  • Benefits: Competitive salary up to £125,000, bonus, and flexible working options.
  • Other info: Opportunity to work on AI security initiatives and grow your career in a hands-on role.
  • Why this job: Join a pioneering role to shape security practices in cutting-edge cloud environments.
  • Qualifications: Experience in security automation, cloud security, and scripting skills required.

The predicted salary is between 112500 - 137500 £ per year.

This is a newly created role for a hands-on security engineer that has a true builder's mindset. We're looking for someone who enjoys solving complex problems through automation, improving security at scale and embedding security into modern engineering environments.

You'll be defining, building and scaling a Security Engineering and Operations function from scratch, lifting and shifting what doesn't work and identifying innovative ways to optimise workflows. This is particularly well suited for those who thrive in Detection Engineering and have experience in security automation, Google Cloud Platform infrastructure, DevSecOps, log ingestion, detection engineering, and securing AI-driven applications within modern cloud environments.

Key Responsibilities:

  • Designing and building security automation across vulnerability triage, sandboxing, remediation workflows, and auto-patching.
  • Securing cloud infrastructure with a strong focus on Google Cloud Platform, Amazon Web Services, and infrastructure-as-code using Terraform.
  • Supporting security architecture and security operations, with particular focus on ingesting and analysing logs from SaaS platforms, cloud environments, and ideally some Microsoft ecosystems.
  • Embedding security controls into CI/CD pipelines and broader engineering workflows to strengthen DevSecOps maturity.
  • Contributing to security initiatives across AI systems, including securing LLM applications, agent-based workflows, and automated threat modelling.

What You'll Need:

  • Experience building practical security automation rather than relying solely on manual processes.
  • Strong cloud security knowledge, particularly in Google Cloud Platform, with solid understanding of IaC principles.
  • Exposure to modern application security, threat modelling, and engineering-led security practices.
  • Interest or experience in AI/LLM security, including securing agentic or automated application environments.
  • Basic to intermediate scripting capability in Python and solid working knowledge of Linux.

Apply via the link or send an updated resume to j.walsh@lawrenceharvey.com

Principal Security Engineer (Network) - Finance in City of London employer: Lawrence Harvey

As a Principal Security Engineer in London, you'll join a forward-thinking company that prioritises innovation and employee growth. With a strong emphasis on collaboration and a hands-on approach to security engineering, we offer competitive salaries, bonuses, and benefits, alongside a vibrant work culture that encourages creativity and problem-solving. This role not only allows you to shape the future of security operations but also provides opportunities for professional development in a dynamic environment focused on cutting-edge technologies.
Lawrence Harvey

Contact Detail:

Lawrence Harvey Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Security Engineer (Network) - Finance in City of London

✨Tip Number 1

Network like a pro! Reach out to folks in the industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your security automation projects and cloud infrastructure work. This gives potential employers a tangible look at what you can do.

✨Tip Number 3

Prepare for interviews by brushing up on common security scenarios and automation challenges. Practice explaining your thought process and solutions clearly, as communication is key in tech roles.

✨Tip Number 4

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

We think you need these skills to ace Principal Security Engineer (Network) - Finance in City of London

Security Automation
Google Cloud Platform
Amazon Web Services
Infrastructure-as-Code (IaC)
Terraform
Log Ingestion and Analysis
DevSecOps
CI/CD Pipeline Security
AI Security
Threat Modelling
Scripting in Python
Linux Proficiency
Problem-Solving Skills
Analytical Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Principal Security Engineer role. Highlight your hands-on experience with security automation, cloud platforms, and any relevant projects you've worked on.

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're the perfect fit for this role. Share specific examples of how you've solved complex problems in security and how you’ve embedded security into engineering workflows.

Showcase Your Technical Skills: Don’t forget to mention your technical skills, especially in Google Cloud Platform, Terraform, and scripting in Python. We want to see how you can contribute to our security initiatives right from the get-go!

Apply Through Our Website: For the best chance of getting noticed, apply through our website. It’s the easiest way for us to keep track of your application and ensures it lands in the right hands!

How to prepare for a job interview at Lawrence Harvey

✨Know Your Stuff

Make sure you brush up on your knowledge of Google Cloud Platform and infrastructure-as-code principles. Be ready to discuss specific projects where you've implemented security automation or improved workflows, as this role is all about practical experience.

✨Show Your Problem-Solving Skills

Prepare to share examples of complex problems you've solved in previous roles, especially those involving detection engineering or cloud security. Highlight your builder's mindset and how you've approached challenges with innovative solutions.

✨Get Familiar with the Tech Stack

Since this role involves working with various technologies, make sure you understand the tools and platforms mentioned in the job description. Brush up on Terraform, CI/CD pipelines, and any relevant SaaS platforms to demonstrate your technical prowess.

✨Emphasise Your Automation Experience

Be ready to discuss your experience with security automation in detail. Talk about the processes you've automated, the impact it had on security operations, and how you can bring that expertise to the new role. This will show you're not just a thinker but a doer.

Principal Security Engineer (Network) - Finance in City of London
Lawrence Harvey
Location: City of London

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