Senior Security Engineer

LT Harper Ltd; United Kingdom; Remote; GBP 120,000; Full time

Job summary

A financial technology innovator is seeking an experienced Senior Cloud Security Engineer to enhance security controls in multi-cloud environments. The ideal candidate will have a strong background in Linux systems and cloud security, proficiency in at least one major cloud provider, and experience securing Kubernetes environments. This remote role involves collaborating with development teams, monitoring emerging threats, and contributing to incident response efforts. A competitive salary of £120k is offered.

Qualifications

• Strong command-line expertise and deep knowledge of Linux systems.
• Practical experience securing Kubernetes across multi-cluster environments.
• Proficiency with at least one major cloud provider and its security practices.

Responsibilities

• Build, maintain, and evolve security controls across complex multi-cloud environments.
• Partner with development teams to guide on secure architecture and risk assessments.
• Proactively monitor cyber threats and contribute to incident response efforts.

Skills

Linux expertise

Cloud security

Kubernetes security

Software engineering

Tools

AWS

GCP

Azure

Kubernetes

SIEM/SOAR

Job description

About the job

Senior Cloud Security Engineer - REMOTE - £120k

My client is transforming the future of financial infrastructure through advanced, modern technology. They are seeking a Cloud Security Engineer who's passionate about designing, implementing, and operating security controls across resilient, highly available multi‑cloud platforms.

If you're experienced in Linux, cloud security, software engineering, and Kubernetes security—and you're eager to influence the next generation of platform security—this role is for you.

What You'll Do

• Build, maintain, and evolve robust security controls across complex multi‑cloud environments.
• Partner with development teams to provide expert guidance on secure architecture, design principles, risk assessments, and long‑term security strategy.
• Proactively monitor emerging cyber threats and help shape defence measures.
• Contribute to incident response efforts and support critical security operations as a secondary responder.

What You Bring

• Strong command‑line expertise and deep knowledge of Linux systems.
• Clear, well‑reasoned perspectives on security approaches and trade‑offs, with a collaborative mindset.
• Practical experience securing Kubernetes—ideally across large, custom, multi‑cluster environments.
• Proficiency with at least one major cloud provider (AWS, GCP, or Azure), including its security ecosystem and hardening practices.
• Solid grounding in software engineering fundamentals and experience building reliable, scalable systems.
• Willingness to participate in an on‑call rotation to support security tooling and assist with incident response.

Nice to Have

• Background in ethical hacking, red teaming, or CTF experience.
• Previous work securing multi‑cloud environments.
• Strong communication skills and a passion for promoting security best practices.
• Experience with structured threat modelling.
• Familiarity with data centre and network security.
• Knowledge of CI/CD pipelines and software supply chain risks.

Tech Stack

• Cloud: AWS, GCP, Azure, private data centres
• Orchestration: Kubernetes, Helm, Flux
• Languages/Platforms: Golang, CockroachDB, NATS
• Security Tools: SIEM/SOAR, EDR, CNAPP + open‑source tooling