Case Study — Legionella Guardian Compliance Platform

Legionella Guardian is a water-safety compliance platform Cheesman is building for the UK water-hygiene industry. It replaces paper logbooks and spreadsheet-based monitoring with a real-time dashboard fed by IoT temperature sensors.

What Was Built

• Multi-tenant SaaS dashboard with role-based access
• IoT sensor integration for hot/cold water temperature logging
• Automated compliance reporting (HSG274) with PDF export
• Multi-site management for facilities teams
• Alerting and escalation workflows
• Companion recruitment platform for the same industry

Stack & Approach

Built with React, TypeScript, Tailwind and Supabase (Postgres + RLS + Edge Functions). Deployed on managed edge hosting with daily backups. Cheesman handles design, development, hosting and ongoing maintenance from the studio in New Alresford, Hampshire.

See also: Alresford Kebab | Karqi | App development in Hampshire