Service Delivery Consultant – Senior Security & Infrastructure Engineer
Remote-based | Travel to customer & ROC offices as required
We’re looking for an experienced Senior Security & Infrastructure Engineer to play a critical role within our Managed Services function, supporting a high‑profile enterprise customer.
This is a hands-on, senior technical role where you’ll take ownership of security operations, infrastructure protection, and service excellence. Acting as the highest point of technical escalation, you’ll work closely with customer stakeholders, internal engineering teams, and project delivery colleagues to provide secure, resilient, and industry‑leading managed services.
If you’re passionate about security, thrive in complex environments, and enjoy driving continual improvement, this role offers real influence and visibility.
What You’ll Be Doing
Security Operations
- Monitor, detect, and respond to security alerts, threats, and incidents across on‑prem and cloud environments
- Investigate complex incidents including malware, phishing, unauthorised access, and vulnerabilities
- Implement and maintain robust security controls across servers, endpoints, and cloud platforms
- Work extensively with SIEM, Endpoint Protection, and threat detection tools
- Secure servers, networks, and cloud platforms in line with best practice and industry standards
- Manage identity and access controls (Active Directory, Azure AD, Privileged Access)
- Oversee patching, system hardening, and configuration management
- Lead customer security onboarding using tools such as Microsoft Defender and Purview
- Lead technical investigations and incident remediation
- Perform root cause analysis and recommend preventative controls
- Support forensic investigations when required
Vulnerability & Risk Management
- Conduct vulnerability assessments and coordinate remediation activities
- Identify security risks and propose practical, effective improvements
- Collaborate across teams to continuously reduce organisational risk
Technical Leadership & Escalation
- Act as the senior escalation point for complex or high‑impact issues
- Support, mentor, and upskill Service Desk and 2nd/3rd Line engineers
- Provide expert technical input into new and evolving managed service offerings
Compliance & Best Practice
- Support compliance frameworks including ISO 27001, Cyber Essentials, and NIST
- Assist with audits and ensure adherence to policies, standards, and controls
- Improve tooling, monitoring, automation, and documentation
- Drive efficiency, resilience, and service quality enhancements
- Stay current with emerging threats, technologies, and security trends
What We’re Looking For
- 5+ years’ experience in a Managed Services environment
- Strong background in security operations and infrastructure security
- Proven experience with Microsoft 365, Azure, and cloud security
- Virtualisation experience (VMware and Azure)
- Solid networking knowledge (routing, switching, VLANs, firewalls, VPNs)
- Experience with SIEM platforms and security monitoring tools
- Familiarity with Microsoft Defender, Endpoint Protection, or similar tooling
- Strong understanding of ITIL frameworks
- Excellent communication and stakeholder engagement skills
- Knowledge of ISO 27001, NIST, or CIS Benchmarks
- Experience with ITSM tools
- BPSS or SC Clearance
Key Attributes
- Strong analytical and problem‑solving capability
- Calm and effective under pressure
- Collaborative team player with clear leadership ability
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