Service Delivery Manager - Zensec

Zenzero; Cambridge; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Private health insurance

Generous holiday allowance + a day off

Flexible working patterns

Enhanced pension contributions

Regular social events across all our

Job summary

Zenzero in the United Kingdom is seeking a Service Delivery Manager for ZenSec to ensure successful delivery of cybersecurity services for clients. You will oversee end-to-end service delivery, monitor performance against agreed outcomes, and act as a trusted partner to customers across security domains.

Working with security teams and client stakeholders, you will drive continuous improvement, align with regulations and standards, and build long-term customer satisfaction while championing

Qualifications

• Essential: Strong service delivery management experience in IT security.
• Essential: cybersecurity knowledge.
• Essential: excellent communication and stakeholder management.
• Essential: problem-solving ability.
• Desirable: ITIL certification; managed security services experience.

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.

Skills

Service delivery mgmt

IT security

Stakeholder management

Problem solving

Process improvement

Education

ITIL certification

Job description

About Zenzero
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.

About Zenzero
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, 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.

Job 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.

Job 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.

Job 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