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Software Development for SaaS Founders

SaaS products need more than code writing. You need a team that understands multi-tenant architecture, subscription management, onboarding flows, and how to scale the product after your first paying customer.

Codevia builds B2B and B2C SaaS products from MVP to scale: Flutter for mobile, .NET for the API, and React for the web — one stack, one team, full accountability for delivery.

What We Build for SaaS

Mobile App (Flutter)

Cross-platform iOS and Android apps with Clean Architecture, BLoC, offline-first capability, and push notifications. One codebase — both platforms.

API Backend (.NET)

.NET 8 Minimal API with JWT auth, multi-tenant data isolation, subscription management, and Swagger documentation.

Web Dashboard (React)

Next.js web apps for end users and internal teams. RBAC, analytics dashboards, and onboarding forms.

Subscription Management

Stripe and Paddle integrations: plans, trial periods, upgrade/downgrade flows, webhook handling, and billing portal.

Multi-Tenant Architecture

Data isolation between tenants, organization-level permission settings, and custom subdomain routing.

Onboarding & Activation

Registration flows, email verification, in-app onboarding checklists, and activation analytics to reduce churn.

Technology Stack

  • Flutter
  • Dart
  • BLoC
  • .NET 8
  • Minimal API
  • React
  • Next.js
  • TypeScript
  • PostgreSQL
  • MongoDB
  • Stripe
  • Firebase
  • GitHub Actions
  • Sentry

Why SaaS Founders Choose Codevia

  • From MVP to Production

    We know the difference between validation prototype code and production-ready code. We build with both in mind — without over-engineering at the validation stage.

  • Full Stack, One Team

    Flutter, .NET, and React under one roof. No managing three different contractors or dealing with incompatible API contracts.

  • SaaS Patterns Already Known

    Multi-tenancy, subscription billing, RBAC, onboarding flows — we've implemented these before. You don't pay for us to learn on your project.

Frequently Asked Questions

Yes. We have Flutter developers for iOS and Android, .NET engineers for the API layer, and React/Next.js developers for web dashboards and admin panels. Most SaaS products need all three — we deliver them as one coordinated team with shared API contracts.
We have experience building multi-tenant architectures with per-tenant data isolation, role-based access control, and subscription management integrations (Stripe, Paddle). These patterns are part of our standard approach for SaaS projects.
For a typical B2B SaaS MVP — mobile app plus API plus web dashboard — we estimate 3–5 months depending on scope. We scope tightly with you before starting, so you know what is and isn't in the MVP before we write code.
Our primary service is development, not product consulting. But our senior engineers have seen many SaaS products and will flag obvious architectural or product decisions that could affect your roadmap. We engage pragmatically, not mechanically.
Yes. Many clients start with an API and web dashboard, then add the mobile app. Or start with mobile only. We build each layer in a way that integrates cleanly with whatever comes next.

Building a SaaS product? Let's talk.

Tell us about your idea or where you are today — we will get back with a technical plan and estimate within one business day.

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