Service Delivery Manager - Zensec
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Summary
Zenzero, a fast-growing UK managed IT and security provider, is hiring a Service Delivery Manager for its ZenSec cybersecurity arm in Cambridge. The role oversees end-to-end delivery of security services to clients — managing service performance, resolving critical incidents with security teams, owning SOPs, and running client service reviews.
Zenzero is one of the UK's fastest-growing technology companies. Named a Top 8 Technology Company at the British Business Awards 2026, recognised by Deloitte as a Best Managed Company, and featured in the Sunday Times Hundred (an annual ranking of the UK's fastest-growing private companies) in both 2025 and 2026, we hold Microsoft Solutions Partner status across all six designations, putting us in the top tier of UK Microsoft partners. The accolades reflect something real: a business that is scaling fast, executing well, and building something that lasts. We're on a mission to make technology genuinely work for mid-market businesses, covering managed IT, cyber security, cloud, and AI solutions that actually move the needle. The demand is growing, and so are we.
We're also a certified B Corp and Scale Up Award winner. That combination matters to us: high growth and high standards aren't in conflict here. Fast growth, high standards, real impact. If that sounds like your kind of place, keep reading.
About the Role
As a Service Delivery Manager within ZenSec, you will play a pivotal role in ensuring the successful delivery of cybersecurity services to our clients. You will oversee end-to-end service delivery, manage service performance against agreed expectations, and act as a trusted partner to customers. Working closely with security teams and client stakeholders, you will drive service excellence, continuous improvement, and long-term customer satisfaction.
Desirable:
We're also a certified B Corp and Scale Up Award winner. That combination matters to us: high growth and high standards aren't in conflict here. Fast growth, high standards, real impact. If that sounds like your kind of place, keep reading.
About the Role
As a Service Delivery Manager within ZenSec, you will play a pivotal role in ensuring the successful delivery of cybersecurity services to our clients. You will oversee end-to-end service delivery, manage service performance against agreed expectations, and act as a trusted partner to customers. Working closely with security teams and client stakeholders, you will drive service excellence, continuous improvement, and long-term customer satisfaction.
Responsibilities
- Lead the delivery of IT security services to clients.
- Manage service performance and continuous improvement initiatives.
- Partner with security teams to resolve service issues and critical incidents.
- Own service delivery processes, documentation and SOPs.
- Build trusted client relationships.
- Conduct regular service review meetings.
- Drive proactive risk management activities.
- Ensure alignment with security regulations and industry standards.
Requirements
Essential:- Strong service delivery management experience in IT security;
- cybersecurity knowledge;
- excellent communication and stakeholder management;
- problem-solving ability;
- process improvement experience.
Desirable:
- ITIL certification;
- managed security services experience.
Benefits
- Private health insurance
- Generous holiday allowance + a day off on your birthday
- Flexible working patterns
- Enhanced pension contributions
- Regular social events across all our offices