Information Security ManagerSalary: £70,000 to £80,000Location: RemoteSecurity Clearance: Eligible for SC/DV clearanceWho 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 organisationOwn and maintain the Information Security Management System (ISMS), including creating and updating policies, procedures, and guidanceEnsure adherence to information security policies and standardsDrive a programme of continuous information security improvementEmbed and promote a positive security culture across the businessEnsure compliance with relevant certifications and regulatory requirements, including ISO 27001, Cyber Essentials Plus, UK GDPR/Data Protection Act, and MOD CSM v3 and v4Plan and coordinate security audits (internal, external, customer, and penetration testing), managing evidence collection and tracking findings through to resolutionProvide information security expertise to projects, services, and business initiatives, including developing or contributing to Security Management PlansDesign and deliver information security training and awareness activitiesContribute to Business Continuity, Disaster Recovery, and internal audit activitiesAct as the primary point of contact for information security across TwinStreamKey Skills:Proven experience in an Information Security Manager or similar role, including security incident management, risk management, security governance, and providing practical information security guidanceExperience embedding information security into the design, development, and delivery of software-based solutions, including secure development practices, cloud services, and integrated platformsStrong understanding of recognised information security frameworks and certifications, particularly ISO 27001 and Cyber Essentials PlusGood knowledge of relevant UK legislation and regulatory requirementsComfortable working remotely (within the UK) in a flexible, fast-paced environmentStrong organisational skills with the ability to manage priorities effectivelyExcellent written and verbal communication skills, with the ability to tailor messaging for different audiencesRelevant professional certifications such as CISSP (highly desirable), CISM, or ISO 27001 Lead Implementer/AuditorAbility 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 industriesExisting UK Security Clearance (SC)Familiarity with MOD security frameworks, including CSM v3 and v4, IPSA, and FSCExperience using the Atlassian suite, particularly JiraDemonstrated 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 PlanSecure your future with our competitive pension plan that offers an 8% employer contribution. Private Medical HealthcareYour 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 DevelopmentYour career is in your hands. We empower you to take charge of your own development, giving you the autonomy to shape your growth. Flexible WorkingWe 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 EventsWe 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.