Engineering Work & Case Studies

Production Systems & Case Studies

In-depth breakdowns of real-world full-stack architectures engineered for high performance, multi-tenancy, and operational reliability.

Production Architecture ConceptHealthcare & Care Services · UK Market Focus

UK Home Care & Operations Management Platform

A digital care platform for managing care bookings, carers, client care plans, recurring billing, and operational compliance.

The Business Challenge

Care agencies often rely on fragmented paper records, manual phone calls, and error-prone spreadsheet rosters. This causes scheduling delays, missed visits, billing disputes, and regulatory compliance risks under CQC standards.

The Technical Solution

Built an end-to-end, web-based care management suite with real-time carer dispatch, automated client invoice generation via Stripe, secure document handling for medical records, and role-based access control (RBAC) for admins, carers, and family members.

Architecture & Data Pipeline

Next.js App Router frontend for instant admin dashboard navigation

NestJS micro-backend with PostgreSQL relational data integrity

Redis caching layer for real-time schedule conflict resolution

AES-256 encrypted document vault for sensitive health records

Key System Features

Client & carer profile management with document vault

Interactive shift scheduling calendar & dispatch board

Stripe integration for recurring care invoice collection

Role-Based Access Control (RBAC) for 4 distinct user tiers

Automated SMS/Email visit reminder notifications

Comprehensive CQC audit trail and logging system

Business & Speed Metrics

70%

Admin Time Saved

99.9%

Billing Accuracy

< 2 mins

Visit Dispatch Speed

CQC Ready

Compliance Readiness

Technologies Used:

Next.jsNestJSTypeScriptPostgreSQLRedisStripeTailwind CSS

Production SaaS SystemB2B SaaS Startup · UK & International

Multi-Tenant Enterprise SaaS Platform

A multi-tenant cloud platform featuring org management, team RBAC, custom billing tiers, and API developer access.

The Business Challenge

The startup needed to pivot from a single-tenant legacy software tool to a multi-tenant cloud architecture that could safely handle enterprise customers with complex SSO, custom seat tiers, and regulatory data isolation demands.

The Technical Solution

Delivered a multi-tenant architecture using PostgreSQL Row-Level Security (RLS), custom team role management, Stripe Billing webhooks integration, and an intuitive Next.js dashboard.

Architecture & Data Pipeline

Next.js Server Components for secure data fetching without exposing client secrets

Drizzle ORM over PostgreSQL database with connection pooling

Better Auth authentication with multi-factor authentication (MFA)

Automated CI/CD GitHub Actions deployment pipeline to Vercel and Railway

Key System Features

Tenant organization isolation & sub-domain support

Flexible member invite flows with RBAC permission levels

Stripe Subscription engine (Monthly/Annual & Tier Upgrades)

Developer API keys & rate-limited REST endpoints

Security audit log tracking all admin actions

Dark mode first UI design built with shadcn/ui

Business & Speed Metrics

< 350ms

Page Load Time

Instant

Customer Onboarding

99.99%

Uptime SLA

< 45ms

API Latency

Technologies Used:

Next.jsTypeScriptDrizzle ORMPostgreSQLRedisStripeBetter Auth

Featured Client ProjectUK B2B Consultancy · London, UK

High-Performance Next.js Business Site & CMS

Re-engineered a slow legacy marketing website into a 98+ Lighthouse score Next.js web application.

The Business Challenge

The client was losing high-value UK leads due to 4.8-second mobile page load times, poor Google Search rankings, and broken lead capture forms on their legacy website.

The Technical Solution

Migrated the entire digital presence to Next.js 15, optimized all asset pipelines, structured semantic JSON-LD schema markup, and integrated Sanity headless CMS alongside serverless lead processing.