Complex web applications and B2B SaaS
We design and launch digital products for business: from internal ERP and CRM systems to scalable SaaS platforms with multi-tenant architecture, billing, and role-based access control.
Ready-made architectural modules
We don't write basic functionality from scratch every time. Using proven patterns allows us to focus on the unique business logic of your product.
Authorization & Roles
Secure login (SSO, OAuth, Magic Links). Complex Role-Based Access Control (RBAC): owners, admins, managers, clients. Permission boundaries at API and UI levels.
Billing & Subscriptions
Stripe integration. Tier management, trial periods, automatic charges, failed payment handling (Dunning), and B2B invoice generation.
Data Isolation
Architecture where each of your clients (Tenant) works in their isolated Workspace. Data security at the database level (Row Level Security).
Analytics & Reports
Interactive dashboards, charts, and tables. CSV/PDF data export. Complex filters and real-time aggregation of large datasets.
Notification System
Transport layer for event delivery: In-app bell, Email sequences, Telegram bots, SMS, and Push notifications (via WebSocket).
API-First Approach
Your product is immediately ready for integration with other systems. We provide REST/GraphQL API for your clients and a Webhook system for external events.
A stack built for scale
We use technologies trusted by global leaders (Vercel, Netflix, Uber). No No-Code builders for complex systems.
Frontend: React & Next.js
We build fast, reactive interfaces (SPA/SSR). The user sees no page reloads. The interface runs smoothly like a native desktop app. We use Tailwind CSS and Radix UI for a perfect design system.
const App = () => <Dashboard data={realtimeData} />;Backend: Node.js & Microservices
We write reliable business logic in TypeScript/Node.js or Python. We split monoliths into microservices where fault tolerance is required. We set up task queues (Redis/BullMQ) for heavy background jobs.
await queue.add('generate-report', { tenantId });DevOps & Infrastructure
We deploy the product to the cloud (AWS, Google Cloud, Vercel). We set up CI/CD pipelines: every commit is automatically tested and delivered to the server without downtime (Zero-downtime deployment).
docker build -t saas-core:latest . kubectl apply -f deployment.yaml
Frequently asked questions about SaaS development
Answers to questions about architecture, security, and timelines.
A website is a storefront (information). SaaS (Software as a Service) is a tool. In SaaS, users register, pay for subscriptions, create entities, work with data, and invite colleagues. This requires complex database architecture and security.
Other services
Related services often solve adjacent problems in one project.