Senior Security Engineer (DevSecOps) - Banking

IT Security - Development - Operations - Banking - InfoSec - IAM - MS Defender

Senior Security Engineer (DevSecOps) required by global Trading Exchange company, based in London (Hybrid Working model), to work within Information Security team, responsible for leading the secure design, delivery, and operation of infrastructure, applications, and identity and access management (IAM) across mu;tiple platforms.

You will serve as a subject matter expert, resolving complex technical and operational challenges by interpreting and applying security policies, guidelines, and best practices.

Specifically, you will be working on the 2026/2027 book of work, MS Defender rollout (EDR and AV). Plus general upgrading and migration work.

Ideal candidates will bring 5+ years of experience in security engineering or DevSecOps, with a strong analytical mindset, deep technical expertise, and the capability to manage and drive multiple initiatives to completion, ensuring secure, scalable, and resilient outcomes.

You will have recent and extensive DevSecOps Financial experience coupled with the following skills/knowledge:

• 5+ years of hands-on experience in security engineering, DevSecOps, or infrastructure security.
• Security tooling (Microsoft Defender EDR, DLP).
• Security automation and Scripting (Python, PowerShell, Bash).
• CI/CD tools (Ansible, Bitbucket, Bamboo).
• Operating systems and container orchestration (Windows, Linux, Kubernetes).
• Network and security protocols (zScaler, Squid).
• Strong analytical and problem-solving skills with a proactive approach to complex challenges.
• Ability to lead and coordinate multiple concurrent security projects across teams.
• Effective communicator with excellent documentation and reporting habits.
• Detail-oriented, adaptable, and committed to continuous improvement in a regulated, fast-paced environment.
• Passionate about security engineering, automation, and protecting critical infrastructure.

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Specifically, you will be working on the 2026/2027 book of work, MS Defender rollout (EDR and AV). Plus general upgrading and migration work.

Ideal candidates will bring 5+ years of experience in security engineering or DevSecOps, with a strong analytical mindset, deep technical expertise, and the capability to manage and drive multiple initiatives to completion, ensuring secure, scalable, and resilient outcomes.

You will have recent and extensive DevSecOps Financial experience coupled with the following skills/knowledge:

• 5+ years of hands-on experience in security engineering, DevSecOps, or infrastructure security.
• Security tooling (Microsoft Defender EDR, DLP).
• Security automation and Scripting (Python, PowerShell, Bash).
• CI/CD tools (Ansible, Bitbucket, Bamboo).
• Operating systems and container orchestration (Windows, Linux, Kubernetes).
• Network and security protocols (zScaler, Squid).
• Strong analytical and problem-solving skills with a proactive approach to complex challenges.
• Ability to lead and coordinate multiple concurrent security projects across teams.
• Effective communicator with excellent documentation and reporting habits.
• Detail-oriented, adaptable, and committed to continuous improvement in a regulated, fast-paced environment.
• Passionate about security engineering, automation, and protecting critical infrastructure.