Chief Information Security Officer

Daisy Group™; Sheffield; On-site; GBP 150,000 - 200,000; Full time

Job summary

A telecommunications company in Sheffield seeks a Chief Information Security Officer to drive security strategy and operations. The role involves engaging with senior leaders to promote a security-aware culture, managing risks, and acting as a vCISO. Candidates should have strong experience in security frameworks and excellent communication skills. This full-time position offers a competitive salary, bonus, and comprehensive benefits.

Benefits

Car allowance

25% bonus

Bupa healthcare

Matched pension contributions

Insurance cover

25 days annual leave

Qualifications

• Experience with ISO27001, CIS, PCI DSS, GDPR required.
• Ability to lead and mentor security teams.
• Experience in a senior security role preferred.

Responsibilities

• Lead security strategy and operations across the organization.
• Assess and mitigate security risks using relevant frameworks.
• Communicate security concepts to stakeholders.
• Act as a trusted security advisor.

Skills

Critical thinking

Risk assessment

Incident management

Communication with executives

Security policy development

Job description

Overview

O2 Daisy is a bold new business, combining Virgin Media O2 Business’s fixed and mobile network innovation with Daisy’s digital-first operations and deep B2B expertise. We have one simple mission: to provide the tech that makes every business better.

The Chief Information Security Officer (CISO) will drive the security strategy for JET, safeguarding systems, data, and applications by embedding robust, risk-appropriate security practices across the business. The role involves engaging with the CEO, Board, and senior leaders to promote a culture of security awareness, representing JET externally with customers, partners, and regulators, and leading global policies and standards, security operations, and crisis management. The CISO will also support sales and consulting engagements as a virtual CISO (vCISO) for enterprise and public sector clients, balancing business needs with security imperatives to position JET as a trusted, secure partner.

Location: Sheffield

Salary: Negotiable dependent on experience

Hours: Monday to Friday, 9:00 AM – 5:30 PM (37.5 hours per week)

Responsibilities

• Lead security strategy, operations, and programs across a complex organization.
• Adapt to situations requiring critical thinking to identify goals, tasks, and priorities.
• Assess and mitigate security risks; apply relevant frameworks and regulations (ISO27001, CIS, PCI DSS, GDPR, etc.).
• Lead security incidents, breaches, and outages, remaining calm and effective under pressure.
• Communicate complex security concepts to executives, boards, and external partners to build consensus and trust.
• Articulate the organisation’s security posture in client-facing scenarios.
• Act as a trusted security advisor (e.g., vCISO) and support client engagements.
• Develop and implement security strategies, policies, and standards to strengthen resilience.
• Hands-on implementation of controls, audits, vulnerability assessments, and responses to threats.
• Foster a collaborative, high-integrity security culture and lead security teams.
• Assess and remediate security risks during mergers, acquisitions, or divestitures.
• Support RFPs, solution design, and customer presentations, translating security into business value.

Additional capabilities

• Translate complex security concepts into clear, actionable insights for executives, boards, and clients.
• Remain resilient under incidents and high-stakes challenges, ensuring clear decision-making and leadership.

What’s in it for you?

• Car allowance: £7,200
• Bonus: 25%
• LTIP: Details shared at offer stage
• Bupa healthcare: 100% employee cover, with discounted family rates
• Pension: Matched contributions up to 10%
• Insurance: Death, disability, and critical illness cover
• Annual leave: 25 days

Next steps

Two-stage interview process is likely. This opportunity is open to all employees, with priority given to at-risk employees who meet the minimum criteria. If you have questions or require reasonable adjustments, please contact the recruiter.

Seniority level

• Executive

Employment type

• Full-time

Job function

• Information Technology

Industries

• Telecommunications

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