Information Security Manager

Salary: £75,000 - 75,000 per year

Requirements

• Experience leading ISO 27001 and cybersecurity governance.
• Strong knowledge of NIST CSF, ISO 27005, and DCPP frameworks.
• Confident communicator with a security-first mindset.
• Comfortable being both strategic and hands-on.
• Qualifications like CISSP (preferred), CISM, ISO 27001 Lead Implementer.

Responsibilities

• Maintain and enhance ISO 27001, Cyber Essentials/Cyber Essentials, and DCPP compliance.
• Lead policy development and risk mitigation across the business.
• Advise on Secure by Design (SbD) assurance and government protective standards.
• Manage security incidents and drive rapid, effective responses.
• Be a key voice in stakeholder discussions, audits, and security awareness initiatives.
• Own security controls for our North Bristol site.
• Support the creation of project-specific security documentation and assurance strategies.

Technologies

• Support
• Security

More

Join TwinStream as an Information Security Manager and make a real impact in national security. We are more than just a tech company; we specialize in solving complex challenges for government organizations. Our team works closely with clients, whether on-site or remotely, supporting mission-critical work across the UK. In this role, you’ll be the go-to expert for security, guiding our ISO 27001 compliance and leading our security strategy. We offer a comprehensive benefits package including a pension plan with an 8% employer contribution, private medical coverage for you and your family, an annual training budget of £1,000, true flexible working, and more. Due to the nature of our clients, this role is conditional on successful completion of security vetting, and applicants must be eligible for Developed Vetting (DV). If you possess the required skills and enthusiasm for this position, we’d love to have you join our high-trust, high-impact team where your work truly matters.

last updated 13 week of 2026