Lead Cyber Security Engineer

S Three • TRAFFIC • Glasgow, Not Specified, United Kingdom • 2d ago

SThree are pleased to announce we're recruiting for a talented Lead Cyber Security Engineer to join & guide our excellent team based in our fantastic office space located in the Cadworks Building, Glasgow.

The Cyber Security Engineering Lead acts as the technical authority across all domains of cloud and endpoint security, taking full ownership of hardening, automation, and threat mitigation. The role is not managerial in the traditional sense it exists to drive technical capability, mentor through engineering leadership, and deliver resilient, scalable defences. This role is hands-on, outcome-focused, and instrumental in building, automating, and scaling secure architectures and controls across the digital estate.

About us

SThree is the global STEM-specialist talent partner that connects sought-after specialists in life sciences, technology, engineering and mathematics with innovative organisations across the world. We are the number one destination for talent in the best STEM markets: Recruiting highly skilled professionals and discovering life-changing jobs for the unsung heroes who will positively shape our future.

What are the day-to-day tasks?

Security Engineering & Automation

Architect and implement security controls across Microsoft 365, Azure, Dynamics 365, Kubernetes (AKS), and AI/ML workloads.
Lead the design and deployment of conditional access, Defender for Cloud, Purview DLP, Azure Firewall, and related services.
Integrate security into DevOps pipelines, CI/CD, infrastructure-as-code, and container work flows.
Automate threat detection and response using Microsoft Sentinel SOAR, custom playbooks, and telemetry pipelines.

Platform Security Oversight

Own and optimise endpoint security through Intune, ensuring device compliance and integration with Zero Trust.
Harden AKS clusters and cloud-native apps through role-based access control (RBAC), secrets management, and runtime protection.
Secure data pipelines and models in AI workloads, implementing guardrails for model integrity and prompt injection defence.

Cloud & Network Security

Engineer secure access and posture for Cisco Meraki infrastructure and Umbrella SWG services.
Enforce network segmentation, micro-perimeter security, and policy-based routing for hybrid network models.
Oversee DNS, web access, and remote gateway protection at the edge.
Security Operations & Threat Defence
Act as the technical escalation point for complex threat investigations and incident response.
Lead red-teaming simulations, vulnerability assessments, and threat hunting activities.
Support proactive telemetry monitoring and improvement of detection logic and alert fidelity.

Leadership & Mentoring

Provide engineering mentorship to junior analysts and engineers; lead by doing.
Shape and communicate the security engineering road map in alignment with the Cyber Security Strategy.

What skills and knowledge are we looking for?

Deep hands-on knowledge of Microsoft security stack (M365 Defender, Sentinel, Intune, Azure Policy, PIM).
Proven experience deploying Cisco Meraki and Umbrella in enterprise environments.
Experience in securing Kubernetes, cloud-native infrastructure, and containerised apps.
5+ years in a senior security engineering or architect role.
Experience leading technical teams or acting as a technical lead on security initiatives.
Certifications such as AZ-500, CISSP, CCSP, GIAC, or similar highly advantageous.
Engineer-first mentality: solves security problems through systems thinking and automation.
Strategic, yet pragmatic: balances best practice with business context.
Proactive, communicative, and passionate about elevating security posture through innovation.
MS Engineer & MS Data Scientist Associate
Ability to exercise independent judgment and act on it.

Benefits for our U.K. teams include:

The choice to work flexibly from home and the office, in line with our hybrid working principles
Bonus linked to company and personal performance
Generous 28 days holiday allowance, plus public holidays
Annual leave purchase scheme
Five days paid Caregiver/Dependant leave per annum
Five paid days off per year for volunteering
Private health care, discounted dental insurance and health care cash back scheme
Opportunity to participate in the company share scheme
Access to a range of retail discounts and saving

What we stand for

We're committed to ensuring for our colleagues, candidates and communities, that all processes are equitable, and everyone is treated with fairness and dignity where everyone belongs, is valued and is connected. If you need any assistance or reasonable adjustments in submitting your application, please let us know, and we'll be happy to help.

What we stand for

We create community and deliver change that transforms the future for everyone. With this in mind, we're committed to ensuring for our colleagues, candidates and communities, that all processes are equitable and everyone is treated with fairness and dignity where everyone belongs, is valued and is connected.

If you need any assistance or reasonable adjustments in submitting your application, please let us know, and we'll be happy to help.

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