Information Security Manager

TieTalent; Bristol; On-site; GBP 50,000 - 80,000; Full time

Job summary

A leading company in national security is seeking an Information Security Manager to drive ISO 27001 compliance and lead security strategy. This role is crucial for safeguarding sensitive client operations and ensuring cybersecurity excellence. The ideal candidate will possess strong governance experience and relevant qualifications like CISSP or CISM, and will be comfortable in both strategic and hands-on roles. Join a high-impact team where your contributions truly matter.

Benefits

Pension Plan – 8% employer contribution

Private Medical (Inc. Dental & Optical) – For you and your family

Annual Training Budget (£1,000) – Empower your growth

True Flexible Working – Work-life balance built-in

Electric Vehicle Leasing Scheme

25 Days Holiday + Bank Holidays

Team Events – Quarterly meetups, summer and Christmas parties

Life Assurance + Cycle to Work Scheme

Qualifications

• Experience leading ISO 27001 and cybersecurity governance.
• Strong knowledge of NIST CSF, ISO 27005, and DCPP frameworks.
• Confident communicator with a security-first mindset.

Responsibilities

• Maintain and enhance ISO 27001, Cyber Essentials compliance.
• Lead policy development and risk mitigation across the business.
• Manage security incidents and drive rapid, effective responses.

Skills

ISO 27001

Cybersecurity governance

NIST CSF

ISO 27005

DCPP frameworks

Communication

Strategic thinking

Hands-on approach

Education

CISSP

CISM

ISO 27001 Lead Implementer

Job description

About

Make a real impact in national security. Drive information assurance for a company solving some of the UK’s most complex technical challenges.

Who We Are

At TwinStream, we’re more than just a tech company. Founded by engineers with deep experience in high-assurance environments, we specialise in solving cross-domain challenges for government organisations. Our people work on-site with clients or remotely, supporting mission-critical work across the UK.

The Information Security Manager Role

As Information Security Manager, you’ll be the go-to expert for all things security, steering our ISO 27001 compliance and leading security strategy across the business. Your work will directly safeguard sensitive client operations and ensure our team stays at the cutting edge of cybersecurity excellence.

Key Responsibilities of the Information Security Manager

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

Skills & Experience

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

Why Join TwinStream?

• Pension Plan – 8% employer contribution
• Private Medical (Inc. Dental & Optical) – For you and your family
• Annual Training Budget (£1,000) – Empower your growth
• True Flexible Working – Work-life balance built-in
• Electric Vehicle Leasing Scheme
• 25 Days Holiday + Bank Holidays
• Team Events – Quarterly meetups, summer and Christmas parties
• Life Assurance + Cycle to Work Scheme

Security Notice

Due to the nature of our clients, this role is conditional on successful completion of security vetting. Applicants must be eligible for Developed Vetting (DV).

What’s Next?

If you have the skillset and enthusiasm to be successful in this new Information Security Manager position, we would love to hear from you. Apply now to join a high-trust, high-impact team where your work truly matters.

Nice-to-have skills

• ISO 27001
• CISSP
• Bristol, England

Work experience

• Cyber Security Specialist
• IT Consultant
• Security Analyst

Languages

• English