SERVICE 06 • SAAS & CLOUD SOFTWARE

Custom SaaS software development & multi-tenant platforms

SaaS (Software as a Service) development by DevSupAi delivers cloud-hosted software engineered for recurring subscriptions across multiple client organizations (multi-tenant architecture). We build the complete technical infrastructure: strict data isolation per organization, automated recurring billing, and self-service portals.

When to choose: When building a digital product, launching software on a recurring subscription model, or transforming proprietary internal expertise into a monetizable software service.

Who do we build SaaS platforms for?

Startup Founders & Product Creators

Entrepreneurs needing a dependable MVP (Minimum Viable Product) ready for initial commercialization.

Consultancies Monetizing Recurring Services

Experts seeking to package their methodology into software accessible to clients via subscription.

Business Networks & Multi-Branch Organizations

Organizations requiring a shared software tool with isolated sub-spaces for each member branch.

Legacy Software Publishers

Companies modernizing an installed desktop program into a cloud app accessible from any browser.

Direct craft by Alexandre Pabst • 100% proprietary code • 0% lock-in
PROBLEM RESOLUTION

Concrete needs and difficulties addressed

Architecture conceived from day one to support commercial distribution.

Problem / Legacy limitation

Absolute necessity of hermetic data isolation between competing client organizations

DevSupAi bespoke solution

Strict database modeling with organization keys guaranteeing complete cross-tenant isolation.

Problem / Legacy limitation

Managing recurring subscriptions, prorating, renewals, and payment retries

DevSupAi bespoke solution

Full integration of Stripe Billing automatically handling recurring payments, dunning, and invoices.

Problem / Legacy limitation

High initial cloud infrastructure costs before building a paying user base

DevSupAi bespoke solution

Modular cloud architecture that starts at low cost and scales strictly with your actual usage.

Problem / Legacy limitation

Onboarding complexity causing prospective clients to drop off before adopting the tool

DevSupAi bespoke solution

Frictionless guided signup workflows getting new organizations up and running in minutes.

SCOPE & CAPABILITIES

Components of a complete SaaS platform

All the essential technical building blocks.

Isolated multi-tenant architecture

Each organization accesses only its own data and settings within a secure workspace.

Stripe Billing recurring subscription engine

Automated handling of monthly or annual plans, trial periods, and recurring charges.

Self-service customer portal

Subscribers manage team members, roles, and payment methods in total autonomy.

Role-based access permissions

Granular permissions (Admin, Member, Read-Only) tailored to each team member.

Super-admin platform overview

Consolidated view of active organizations, system activity, and recurring revenue metrics.

Security & GDPR compliance

Encrypted communications, on-demand data export, and compliant European hosting.

OUR PHILOSOPHY

DevSupAi SaaS engineering

Product pragmatism and long-term vision.

01

Pragmatic MVP philosophy

We help you focus on the indispensable core features to launch quickly and gather user feedback.

02

Resilient billing synchronization

Stripe integrations rely on robust webhooks preventing subscription status drift.

03

Full technology asset ownership

You own the source code and all intangible value created by your platform.

TECH STACK & CORE VITALS

Technologies chosen for SaaS platforms

A standardized, secure cloud development stack.

TypeScriptSoftware Architecture

Code type-safety shared between frontend and server.

PostgreSQLRelational Database

Robust transactional management and multi-tenant partitioning.

Stripe BillingFinancial Processing

Secure management of recurring subscriptions and invoicing.

React 19SaaS Interface

Fast, responsive dashboard ergonomics for daily use.

Performance

Low API response times and high availability on cloud infrastructure.

SEO & Schema.org

Accessibilité & UX

Careful ergonomics ensuring quick adoption from the very first login.

PROOF OF WORK

Tangible SaaS platforms developed by DevSupAi

Discover real projects built with this technology and approach.

Production Multi-Tenant SaaS

LocaTool (https://locatool.devsupai.fr)

Originated for the Le Caf'Tiers association in Saint-Mihiel, now a full multi-tenant SaaS with equipment custody, contracts, and PDF billing.

Discover LocaTool SaaS
Online Platform

Abogame (https://abogame.devsupai.fr)

Built for an online creator, subsequently launched as an interactive digital service.

Explore Abogame platform
Direct Commerce & Sales

Tailored Retail & Local Store Solution

Turnkey e-commerce and Click & Collect platform operating without subscriptions or intermediary sales commissions.

Explore retail store solution
SAAS DEVELOPMENT PRICING
From €3,200 (Pack SaaS & Business Apps) • Base rate €400 / day

Scoping, multi-tenant database modeling, Stripe Billing setup, admin dashboard, and production launch.

Complete intellectual property transfer of all software assets.
TRANSPARENT ANSWERS

Frequently asked questions on SaaS development

Everything you need to know before initiating your project.

EDUCATIONAL GUIDE & METHODOLOGY

How to Build a Successful Platform for an SME or Non-Profit

Technical roadmaps, data independence, and field feedback from the LocaTool multi-tenant SaaS deployment.

Read Deployment Methodology
INTERNAL MESH

Complementary services

DIRECT HUMAN INTERLOCUTOR

Have a software idea on a SaaS model?

Consult with Alexandre Pabst to map out technical feasibility and development milestones.

DevSupAi — Alexandre Pabst EI • 13 Allée des Roses, 55300 Saint-Mihiel (Meuse) • contact@devsupai.fr