Hamilton Barnes 🌳
Senior Security Engineer
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Senior Security Engineer (Team Leader) | Leeds, UK | Home Based
A leading managed security services provider is looking for a Senior Security Engineer (Team Leader) to lead the technical and people side of a dedicated security team supporting a client in a regulated industry. This isn't a hands-off management role — you'll combine platform engineering ownership with technical leadership, acting as the primary escalation point for complex incidents and cross-platform issues, with a strong Microsoft Sentinel and Defender focus.
You'll line manage senior engineers and analysts, own architecture and configuration decisions across the security platform estate, and act as the senior technical interface between the analyst team, engineering function, and client leadership.
Why this role stands out:
- Genuine ownership of platform architecture and engineering standards across a modern Microsoft-centric security stack
- Blend of hands-on engineering and people leadership — you're never far from the tools, but you're shaping the team's direction
- High-visibility role bridging analysts, engineering, and client security leadership in a regulated environment
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Key Responsibilities:
- Act as technical lead and primary escalation point for complex/major incidents and cross-platform issues
- Line manage the Senior Security Engineer and Senior Security Analyst team, including performance reviews and development
- Own architecture, configuration and lifecycle management across SIEM (Sentinel), XDR/EDR (Defender), vulnerability management (Qualys), DLP (Purview), cloud security (Netskope) and more
- Lead SOAR automation and LogicApps implementation to improve response efficiency
- Support detection tuning, threat hunting, and response playbook development with the 24/7 analyst team
- Ensure compliance with regulatory frameworks (ISO 27001, NIST, CIS Controls, FCA, DORA)
- Own engineering documentation, runbooks and standards
- Act as senior engineering contact for the client's SOC provider
Skills/Must Have:
- Significant hands-on security engineering experience with proven technical leadership
- Experience line managing technical staff, including performance reviews and development planning
- Deep hands-on experience with the Microsoft Defender stack and Microsoft Sentinel (SIEM/SOAR, KQL, LogicApps)
- Experience with vulnerability management, DLP/compliance and cloud security tooling
- Strong scripting/automation skills (PowerShell, Python or Bash)
- Experience working in regulated environments (financial services, government, CNI)
- Strong stakeholder engagement skills, including presenting to senior contacts, auditors and governance teams
- May be required to hold or obtain UK NPPV and/or SC clearance
- Degree educated or equivalent industry experience
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Benefits:
- Extensive, tailorable benefits package including matching pension, healthcare, insurance and dental
- Discounted gyms and app-supported benefit access
- Paid charity leave and dedicated employee support programme
- Genuine investment in ongoing training (min. 40 hours/year) and professional development
Interested? Get in touch to find out more or send your CV directly.
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