Salary: £55,000 - 65,000 per year Requirements: Proven experience in security systems design (not just installation) within regulated or defence-adjacent environments. Familiarity with Mercury door controllers and Axis or Bosch surveillance platforms. A commitment to a 4-day on-site presence initially for close collaboration with delivery teams. Responsibilities: Lead end-to-end design (HLD/LLD) for high-security sites, ensuring every solution is robust and compliant. Integrate diverse systems from biometric access control to large-scale network security deployments. Act as the technical voice of the business in high-level design workshops alongside global consultancy partners. Mentor a small, dedicated team of engineers, fostering a culture of technical excellence. Technologies: Network Security More: We are a rapidly expanding, award-winning technology firm that has transformed from a startup into a £7M turnover powerhouse. As the strategic partner of choice for mission-critical environments, we provide MoD-standard safeguards for high-security sites across the UK. As a Senior Security Systems Designer, you will be at the forefront of our innovative projects, ensuring our systems meet the highest standards in security. last updated 10 week of 2026