Full-Stack SaaS Development | Node.js & Next.js Experts — JassWeb

Enterprise-Grade Development

We Build Scalable SaaS Platforms Like BeeCastly

Full-stack development services using the same modern architecture powering BeeCastly. From Node.js microservices to Next.js frontends—we deliver production-ready applications that handle millions of requests.

⚡ Node.js ▲ Next.js 15 ⚛️ React 19 🔷 TypeScript 🐘 PostgreSQL 📊 Redis 🐳 Docker ☁️ AWS/Hetzner

Development Services

End-to-end software engineering using the exact stack that powers high-performance platforms like BeeCastly

Node.js Backend Architecture

Scalable server-side solutions with Express.js, NestJS, or Fastify. We build RESTful APIs, GraphQL endpoints, and real-time WebSocket servers that handle 10K+ concurrent connections.

Express NestJS Socket.io Microservices

Next.js Full-Stack Apps

Server-side rendered React applications with App Router, Server Components, and Edge Functions. Optimized for SEO, performance, and scalability—just like BeeCastly’s dashboard.

App Router SSR/SSG Edge Runtime Vercel
🔷

TypeScript-First Development

Type-safe codebases that prevent bugs before deployment. We implement strict typing, custom interfaces, and advanced generics for enterprise-grade reliability.

Strict Mode Zod Validation tRPC
🤖

AI Integration & LLMs

Seamless integration with OpenAI, Anthropic Claude, Google Gemini, and local models (Ollama). We build AI chatbots, content generators, and intelligent automation workflows.

OpenAI API LangChain Vector DBs
📱

WhatsApp & Meta API Integration

Official WhatsApp Business API implementation with template management, webhook handling, and two-way messaging—identical to BeeCastly’s enterprise messaging system.

Meta API Webhooks Template Mgmt
🗄️

Database Architecture

PostgreSQL, MongoDB, and Redis configurations optimized for high-throughput SaaS applications. Including replication, sharding, and connection pooling strategies.

Prisma Mongoose Redis Cache

Our 2026 Tech Stack

The same modern technologies we use to build and scale BeeCastly for thousands of users

▲ Next.js 15

React framework with Server Components, Parallel Routes, and Intercepting Routes for complex dashboard UIs.

⚛️ React 19

Latest React features including Server Components, Actions, and improved Suspense boundaries.

🔷 TypeScript 5.4

Full type safety from database to UI with strict configuration and custom type utilities.

🐘 PostgreSQL 16

Advanced relational database with JSONB support, full-text search, and complex query optimization.

📊 Redis

In-memory data store for session management, real-time analytics, and job queues.

🐳 Docker & Coolify

Containerized deployments with orchestration on Hetzner, AWS, or your preferred cloud.

🚀 Hetzner Cloud

High-performance German infrastructure with Object Storage, Load Balancers, and private networking.

Our Development Process

From concept to production deployment

1

Architecture Design

System design sessions defining database schema, API contracts, and infrastructure requirements.

2

Development

Agile sprints with TypeScript, code reviews, and automated testing using Jest and Cypress.

3

DevOps Setup

Docker containerization, CI/CD pipelines, and cloud deployment on Hetzner or AWS.

4

Scale & Optimize

Performance tuning, caching strategies, and horizontal scaling for production loads.

Real-World Example

BeeCastly Platform Architecture

We architected and built BeeCastly—a multi-channel marketing automation platform processing 10K+ messages per minute using Node.js microservices and Next.js.

17+

Integrated Services

10K+

Msgs/Minute

99.99%

Uptime SLA
microservice.ts
import { WebSocket } from ‘ws’;
import { Redis } from ‘ioredis’;
export class MessagingService {
async broadcast(msg: Message) {
await this.redis.publish(‘channel’, msg);
}
}

Ready to Build Your SaaS?

Get the same tech stack and expertise that powers BeeCastly. From MVP to enterprise scale—we handle the complex architecture so you can focus on growth.

Let’s Build Something Smarter

Discuss your goals, challenges, and how a modern website can grow your business in 2026.

jassweb logo

Jassweb always keeps its services up-to-date with the latest trends in the market, providing its customers all over the world with high-end and easily extensible internet, intranet, and extranet products.

Contact
San Vito Al Tagliamento 33078
Pordenone Italy
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