Lead Security Engineer

Lead Security Engineer

Full-Time 48000 - 72000 ÂŁ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Lead security initiatives and embed security in the software development lifecycle.
  • Company: A leading fintech company with a focus on innovation and security.
  • Benefits: Hybrid work model, competitive salary, and opportunities for professional growth.
  • Why this job: Make a real impact by shaping secure solutions in a dynamic fintech environment.
  • Qualifications: 3+ years in application security or strong software engineering with a security focus.
  • Other info: Join a collaborative team and influence best practices in security.

The predicted salary is between 48000 - 72000 ÂŁ per year.

A leading fintech company is seeking a Lead AppSec Engineer to join their established team. You’ll be instrumental in embedding security into every stage of the software development lifecycle—guiding engineers, shaping best practices, and driving secure, scalable solutions across our platform.

Responsibilities

  • Security Advisory: Serve as the go-to expert for application security across engineering teams—providing hands-on guidance, resolving concerns, and fostering a security-first mindset.
  • DevSecOps Enablement: Promote and implement secure development practices across CI/CD pipelines, secrets and key management, dependency management, and secure design.
  • Vulnerability Management: Lead vulnerability remediation efforts—triaging findings, prioritizing risks, and partnering with teams to deliver effective, pragmatic fixes.
  • Tooling & Automation: Integrate security tools (e.g., SAST, DAST, SCA, secrets scanning) into developer workflows, ensuring automation is both scalable and developer-friendly.
  • Cloud Security Collaboration: Work alongside infrastructure teams to ensure secure configuration of AWS and Azure environments, with a focus on IAM, network security, encryption, and observability.
  • Architecture & Design Reviews: Provide input and recommendations to ensure new services and features are secure by design.
  • Continuous Improvement: Stay ahead of the curve on security trends, tools, and threats—proactively recommending enhancements to our security posture.

Skills needed

  • 3+ years of experience in application security, or a strong software engineering background with a security focus.
  • Hands-on experience with secure CI/CD practices, DevSecOps methodologies, GitHub workflows, and Terraform.
  • Deep understanding of cloud security principles in AWS and Azure, particularly around IAM, secrets management, and networking.
  • Proficient in secure coding practices, threat modeling, and vulnerability remediation.
  • Familiar with a range of security tooling including static and dynamic analysis, software composition analysis, and container security.
  • Excellent communication and collaboration skills—able to translate complex security concepts into practical guidance for engineers.
  • Proven ability to influence development teams and drive adoption of security best practices.
  • Strong analytical and prioritization skills with a pragmatic, risk-based approach to decision-making.

Nice to have

  • If you have come from a development / penetration testing background this would be advantageous for my client.
  • Pen testing experience
  • Certifications (CEH) / OSCP

This role is on a hybrid basis with 2 to 3 days on-site in central London and offers a 2 - 3 stage interview process. Interview slots available - apply now to be considered!

Lead Security Engineer employer: Halian | Managed Services, Recruitment Agency & Contract Staffing

Join a leading fintech company that prioritises innovation and security, offering a dynamic work environment in the heart of central London. With a strong emphasis on employee growth, you will have access to continuous learning opportunities and the chance to influence best practices across engineering teams. Enjoy a collaborative culture that values your expertise while providing the flexibility of a hybrid work model, making it an ideal place for those seeking meaningful and rewarding employment.
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Contact Detail:

Halian | Managed Services, Recruitment Agency & Contract Staffing Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Lead Security Engineer

✨Tip Number 1

Network like a pro! Reach out to folks in the fintech space, especially those working in security roles. Attend meetups or webinars, and don’t be shy about sliding into DMs on LinkedIn. You never know who might have the inside scoop on job openings!

✨Tip Number 2

Prepare for those interviews by brushing up on your technical skills and security concepts. Practice explaining complex ideas simply—remember, you’ll need to communicate effectively with engineers. Mock interviews can be a game changer, so grab a mate and get practising!

✨Tip Number 3

Showcase your passion for security! Share your thoughts on recent security trends or tools on social media or in forums. This not only builds your personal brand but also demonstrates your commitment to staying ahead in the field.

✨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. So, hit that apply button and let’s get you in for an interview!

We think you need these skills to ace Lead Security Engineer

Application Security
DevSecOps
CI/CD Practices
GitHub Workflows
Terraform
Cloud Security (AWS and Azure)
IAM Management
Secrets Management
Networking Security
Secure Coding Practices
Threat Modelling
Vulnerability Remediation
Security Tooling (SAST, DAST, SCA, Container Security)
Communication Skills
Analytical Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience in application security and DevSecOps. We want to see how your skills align with the role, so don’t be shy about showcasing 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 security and how you can contribute to our team. Keep it engaging and personal—let us know what makes you tick!

Showcase Your Technical Skills: Don’t forget to mention your hands-on experience with tools like SAST, DAST, and Terraform. We love seeing candidates who can integrate security into developer workflows, so highlight any relevant projects or experiences.

Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s super easy, and we can’t wait to see your application come through!

How to prepare for a job interview at Halian | Managed Services, Recruitment Agency & Contract Staffing

✨Know Your Stuff

Make sure you brush up on your application security knowledge. Familiarise yourself with secure coding practices, DevSecOps methodologies, and the specific tools mentioned in the job description. Being able to discuss these topics confidently will show that you're not just a fit for the role, but genuinely passionate about security.

✨Showcase Your Experience

Prepare to share specific examples from your past work where you've successfully implemented security measures or led vulnerability remediation efforts. Use the STAR method (Situation, Task, Action, Result) to structure your answers, making it easy for the interviewers to see your impact.

✨Communicate Clearly

Since excellent communication skills are crucial for this role, practice explaining complex security concepts in simple terms. Think about how you would guide engineers who may not have a security background. This will demonstrate your ability to foster a security-first mindset across teams.

✨Stay Current

Keep yourself updated on the latest security trends, tools, and threats. Be ready to discuss recent developments in cloud security, especially around AWS and Azure. Showing that you’re proactive about continuous improvement will resonate well with the interviewers.

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