Who are we:

In 2019, our founders were working as engineers solving complex cross domain problems within government organisations

TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.

Information Security Manager

Salary: £70,000 to £80,000

Location: Remote

Security Clearance: Eligible for SC/DV clearance

Who are we: 

In 2019, our founders were working as engineers solving complex cross-domain problems within government organisations. 

TwinStream (TSL) was formed to consolidate its collective expertise and experience into one business, providing technical excellence and exceptional service to its clients. We have teams working both on-site with clients and remotely from home. 

About the role:  

We’re looking for a hands-on, mid-to-senior Information Security practitioner who enjoys getting involved in the practical aspects of security. This role is about delivery—updating and writing policies, delivering training, and providing clear, pragmatic security advice across TwinStream.

You’ll work independently, owning day-to-day information security activities without line management responsibilities. While we may occasionally bring in specialist support, you’ll be trusted to drive the work forward.

This role focuses on governance, risk, and compliance rather than IT operations. You won’t be configuring systems or running security tools—our IT teams handle that—allowing you to focus on enabling secure delivery and building a positive security culture.

Key Responsibilities:

Manage information security incidents and security risks across the organisation

Own and maintain the Information Security Management System (ISMS), including creating and updating policies, procedures, and guidance

Ensure adherence to information security policies and standards

Drive a programme of continuous information security improvement

Embed and promote a positive security culture across the business

Ensure compliance with relevant certifications and regulatory requirements, including ISO 27001, Cyber Essentials Plus, UK GDPR/Data Protection Act, and MOD CSM v3 and v4

Plan and coordinate security audits (internal, external, customer, and penetration testing), managing evidence collection and tracking findings through to resolution

Provide information security expertise to projects, services, and business initiatives, including developing or contributing to Security Management Plans

Design and deliver information security training and awareness activities

Contribute to Business Continuity, Disaster Recovery, and internal audit activities

Act as the primary point of contact for information security across TwinStream

Key Skills:

Proven experience in an Information Security Manager or similar role, including security incident management, risk management, security governance, and providing practical information security guidance

Experience embedding information security into the design, development, and delivery of software-based solutions, including secure development practices, cloud services, and integrated platforms

Strong understanding of recognised information security frameworks and certifications, particularly ISO 27001 and Cyber Essentials Plus

Good knowledge of relevant UK legislation and regulatory requirements

Comfortable working remotely (within the UK) in a flexible, fast-paced environment

Strong organisational skills with the ability to manage priorities effectively

Excellent written and verbal communication skills, with the ability to tailor messaging for different audiences

Relevant professional certifications such as CISSP (highly desirable), CISM, or ISO 27001 Lead Implementer/Auditor

Ability and willingness to undergo UK Security Clearance (minimum SC level)

Desired Skills: 

Experience in information security roles within the UK defence sector, national security sector, or other highly regulated industries

Existing UK Security Clearance (SC)

Familiarity with MOD security frameworks, including CSM v3 and v4, IPSA, and FSC

Experience using the Atlassian suite, particularly Jira

Demonstrated experience in managing security incidents and leading incident response teams.

Ability to present and be the focal point for security matters across the business.

Experience in supporting the security controller role in various security frameworks.

Understanding of insider threat operational and governance requirements, and experience in applying them.

There are many great reasons to join our team! 

Pension Plan 

Secure your future with our competitive pension plan that offers an 8% employer contribution.  

 Private Medical Healthcare 

Your health and well-being are our top priorities. Enjoy comprehensive private medical healthcare, which includes dental and optical care for you and your family.  

 Learning and Development 

Your career is in your hands. We empower you to take charge of your own development, giving you the autonomy to shape your growth.

Flexible Working 

We understand the importance of balancing work and life. Flexibility is not just a policy for us; it is part of our culture. We are passionate about helping you seamlessly integrate work with your home life.   

Electric Vehicle Scheme  

Drive sustainability forward with our electric vehicle leasing scheme. You can take advantage of this initiative through a convenient salary sacrifice program.   

Holidays  

Enjoy annual leave of 28 days, plus bank holidays, allowing you to recharge and spend time on what matters most.     

Team Events 

We love celebrating our achievements! In addition to our quarterly meetings, you can look forward to our Christmas and summer parties—opportunities to relax, reflect, and have fun as a team.   

 Additional Benefits  

We provide life assurance for your peace of mind and a cycle-to-work scheme to support your health and sustainability goals. 

Further Information:

To meet the security requirements of certain clients and industries we serve, any job offer will be contingent upon the successful completion of a security screening process.

At TwinStream, we take pride in being an equal opportunity employer. We celebrate diversity and are committed to fostering an inclusive environment where all individuals are valued and respected. We welcome applications from qualified candidates regardless of race, religion, disability, age, sexual orientation, or gender.