Senior Security Engineer

WeDo; Remote; GBP 75,000; Full time

Job summary

A global technology organization is seeking a Senior Security Engineer to enhance their security posture. This remote-first role involves working across cloud, mobile, and physical systems, ensuring effective security implementations. The ideal candidate has a strong understanding of security architecture in Azure and/or AWS, along with expertise in operating system hardening and engineering skills in C# and Linux. Apply to drive significant security improvements within a hybrid environment.

Qualifications

• Strong knowledge of security architecture in Azure and / or AWS.
• Expertise in hardening operating systems and infrastructure.
• Hands-on experience with IaC tools.

Responsibilities

• Act as subject matter expert for secure practices in the software development lifecycle.
• Drive remediation and uplift guardrails for consistent security.
• Work across embedded devices, cloud infrastructure, and on-prem systems.

Skills

Security architecture in Azure and / or AWS

Hardening operating systems

C#

Linux toolchains

Bash

PowerShell

IaC tools such as Terraform, Bicep, or CloudFormation

Understanding of mobile security across iOS / Android

Job description

Job Title : Senior Security Engineer

Salary : £75,000 + Bonus + Benefits

Location : Remote-first (UK) with occasional travel

About the role

I’m supporting a global technology organisation within the key and asset management space who are looking for a Senior Security Engineer to strengthen and mature their security posture across cloud, mobile and physical systems.

Reporting into the DevOps Lead, you will act as the subject matter expert for secure-by-default practices across the full software development lifecycle. The business has made strong progress over the last 12 months in threat detection and modelling; now they need someone who can drive remediation, uplift guardrails, and ensure consistent security across a hybrid environment.

You’ll work across embedded devices, cloud infrastructure, on-prem systems, and companion mobile applications, ensuring policies are meaningful, communicated clearly, and translated into practical implementation.

This is a remote-first position with occasional visits to the UK office as required.

About you

You’re likely someone who has come from a Support, Infrastructure, or Systems background and grown into a security role. You have a strong understanding of cloud security, OS hardening, and the realities of supporting environments that combine SaaS, on-prem, and IoT components.

You’re comfortable being a senior technical contributor, working closely with DevOps and Engineering teams, and clearly explaining the value and impact of the improvements you make.

A pragmatic mindset, ability to operate with autonomy, and experience across complex architectures will make you successful here.

Requirements

• Strong knowledge of security architecture in Azure and / or AWS (Azure preferred)
• Expertise in hardening operating systems and infrastructure (Linux / embedded / mobile / cloud)
• Broad engineering skills : C#, Linux toolchains, Bash, PowerShell
• Hands‑on experience with IaC tools such as Terraform, Bicep, or CloudFormation
• Familiarity with OWASP, CVE, and general infrastructure and software security frameworks
• Experience working in hybrid environments including physical infrastructure, virtualisation and data centres
• Ability to implement and communicate tangible security improvements
• Exposure to IoT or complex distributed architectures is highly beneficial
• Understanding of mobile security across iOS / Android is advantageous

Ready to apply?

Please send your CV to [e-mail] or apply via LinkedIn.