ConEng — Construction Quality Management Platform

The challenge

Most construction quality-management software is generic and process-heavy, forcing site teams to adapt their workflow to the tool. Sam's experience managing quality compliance on major infrastructure programmes pointed to a gap: something built specifically around the ITP-to-QIR workflow, with UK-hosted, auditable records that are provably unaltered once signed off.

Approach

• Co-founded ConEng with Sam Phelps, pairing his civil engineering and site-delivery experience with software design and engineering
• Built the app on Next.js 15 (App Router), React 19, and TypeScript, with Tailwind CSS v4
• Used Supabase (Postgres, Auth, Storage) hosted in the UK (London, eu-west-2) for data residency, enforcing access control with Row-Level Security in the database itself rather than only in application code
• Modelled the domain around versioned ITP templates and checklist/measurement definitions, with a snapshot rule so signed-off records and their PDFs never change if a template is later revised
• Added a database-level immutability trigger and full audit log so submitted or locked quality records can't be edited after signoff
• Built the 5-stage site engineer inspection wizard (setup, checklist, measurements, files, signoff) alongside a bulk-creation office workflow and weekly programme-progress alignment reporting