Cybersecurity Customer Success Lead

CyberOne; Greater London; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

CyberOne is a pure-play Microsoft security partner focused on helping enterprises maximise the value of Defender XDR, Sentinel, Entra and more. The Customer Success Executive will own renewals, drive growth opportunities, and lead service delivery across managed security services in a hybrid London-based role.

The role sits at the crossroads of Operations, Service Delivery, and Sales, requiring organisational excellence and strong customer relationships to minimise churn and deliver measurable

Qualifications

• Excellent administration, organisation, and time management skills.
• Strong analytical ability with a practical, problem-solving mindset.
• High attention to detail — you don’t let things slip.
• Confident written and verbal communication skills, including customer-facing reporting.
• A proactive, self-starting style — independent or team work.

Responsibilities

• Own renewals and contract management to minimise churn.
• Forecast pipeline of renewals, expansions and opportunities.
• Meet customers regularly to understand challenges and map to CyberOne services.
• Lead structured monthly/quarterly service reviews and ensure actions are delivered.
• Direct order processing, fulfilment, and customer requests end-to-end.
• Generate reports and support decision-making with data.

Skills

Account management

Relationship building

Analytical thinking

Communication skills

Organization

Self-motivation

Cybersecurity knowledge

Power BI

PowerPoint

Word

Excel

Monday.com

Tools

Power BI

PowerPoint

Word

Excel

Monday.com

Job description

CyberOne is a pure-play Microsoft security partner focused on helping enterprises maximise the value of Defender XDR, Sentinel, Entra and more. The Customer Success Executive will own renewals, drive growth opportunities, and lead service delivery across managed security services in a hybrid London-based role.

The role sits at the crossroads of Operations, Service Delivery, and Sales, requiring organisational excellence and strong customer relationships to minimise churn and deliver measurable