Services
Web Applications & Cloud SaaS
Production-grade web applications and cloud SaaS platforms engineered for scale, security, and commercial velocity. From customer portals and automated compliance generators to full multi-tenant SaaS products like Denwen RMM, AidRoute, and RAMSMate, we design, build, and operate mission-critical web software.
The challenge
Where most businesses get caught out
Off-the-shelf SaaS subscriptions rarely fit your exact operational workflows — forcing your staff to bridge gaps with error-prone spreadsheets, duplicate data entry, and expensive per-seat licences. Meanwhile, building an in-house engineering team takes months and a large budget before a single line of production code is shipped.
What is included
What you get with Web Apps & SaaS
Multi-Tenant SaaS Architecture
Strict query-level tenant isolation, custom roles, per-tenant policies, and self-service onboarding — proven in production on Denwen RMM (rmm.denwen.co.uk).
Secure Client & Partner Portals
Bespoke B2B and B2C portals for document exchange, real-time job tracking, custom photo/3D quote approvals, and self-service account management.
Stripe Billing & Subscription Engines
Automated card checkout, tiered seat or usage billing, webhook reconciliation, and instant tenant provisioning while the receipt is on screen.
Enterprise SSO & Zero-Trust Auth
Microsoft Entra ID (Azure AD), OIDC/SAML single sign-on, TOTP MFA with AES-256-GCM encryption at rest, and granular Role-Based Access Control.
Real-Time Telemetry & WebSockets
Live operational dashboards, bi-directional WebSocket streaming, durable background job queues, and instant webhook/SMTP alerting.
Accessible Progressive Web Apps (PWAs)
Offline-capable mobile and desktop web apps with QR touch signatures, instant PDF generation, and neurodiverse/WCAG accessibility (as built for AidRoute & RAMSMate).
REST, GraphQL & Legacy API Integration
Connect Xero, Sage, Microsoft Graph, Dynamics 365, ERP/MRP platforms, and bespoke webhooks into a single unified application.
Privacy-First AI & BYO Model Integration
Embed practical AI summarization and workflow automation using either managed models or private OpenAI-compatible endpoints so client data stays under your control.
How it works
How we get you there
Every engagement starts with a conversation and a look at what you already have. No changes until you have agreed the plan.
Step 1: Product Discovery & System Specification
We map your user roles, data models, tenant boundaries, and commercial logic into a clear technical specification and clickable wireframes.
Step 2: Database, API & Security Architecture
PostgreSQL schema design, authentication flows, query-level isolation rules, and automated test harnesses built on modern TypeScript/Node/React stacks.
Step 3: Iterative Sprint Engineering
Fortnightly staging releases where your stakeholders test real features, integrations, and billing flows in a live browser environment.
Step 4: Production Launch, Monitoring & SLA
Hardened deployment, automated database backups, 24/7 telemetry alerting, and ongoing feature evolution.
FAQ
Web Apps & SaaS questions
Can’t see your question? Call or email us and an engineer will answer it.
Free IT & security review
Find out where your IT is exposed — in 30 minutes
A senior engineer reviews your setup, security and backups, then gives you a plain-English action list. No obligation, no hard sell.