Custom Web Application Development Services for Bangladesh Enterprises

EcomTech delivers powerful, scalable web applications for businesses of all sizes in Bangladesh. We specialize in full-stack development using Node.js, React, and MongoDB, building everything from CRM systems to complex SaaS platforms with modern architecture and cloud deployment.

Node.js, React & MongoDB experts • Cloud-ready architecture • 24/7 support

Our Web Development Technology Stack

Modern, proven technologies for enterprise applications

Frontend Technologies

React.js: Component-based architecture, fast responsive user interfaces, single-page applications (SPA), server-side rendering (Next.js), state management (Redux, Context API), reusable component library.

Modern UI Frameworks: Tailwind CSS, Material-UI, Ant Design for admin dashboards, custom design systems, responsive and mobile-first design, accessibility compliance (WCAG).

Backend Technologies

Node.js & Express: High-performance async architecture, RESTful API development, GraphQL API implementation, WebSocket for real-time features, microservices architecture, background job processing.

Database Systems: MongoDB for flexible document storage, PostgreSQL for relational data, MySQL for legacy integration, Redis for caching, Elasticsearch for full-text search.

Cloud & DevOps

AWS, Google Cloud, DigitalOcean, Docker containerization, Kubernetes orchestration, CI/CD pipelines (GitHub Actions, Jenkins), automated testing and deployment, Infrastructure as Code (Terraform).

Web Application Solutions We Build

Tailored solutions for every industry and business need

SaaS Platforms

Multi-tenant architecture with data isolation, subscription billing, user management, role-based access control (RBAC), API access for third-party integrations, admin dashboard, usage analytics, white-label customization. Example: Multi-tenant project management SaaS with 200+ companies, 10,000+ active users.

E-Commerce & Marketplace

Multi-vendor marketplace systems, B2B wholesale portals, subscription-based commerce, digital product delivery, auction and bidding systems, complex product configuration, advanced pricing rules, inventory management across locations.

CRM & Business Management

Lead generation and tracking, sales pipeline management, customer communication history, task and project management, reporting and analytics dashboard, email campaign integration, mobile app for field staff, integration with existing tools.

Financial Management

Account and transaction management, payment processing and reconciliation, expense tracking and budgeting, invoice and billing systems, financial reporting and analytics, compliance and audit trails, multi-currency support.

Healthcare Systems

Patient registration and records, appointment scheduling, prescription and medication management, lab test and report management, billing and insurance claims, telemedicine integration, doctor and staff management.

Education Platforms

Course creation and management, video hosting and streaming, quiz and assessment engine, student progress tracking, discussion forums, live class integration (Zoom, Meet), certificate generation, payment and subscription management.

Advanced Features We Implement

Enterprise-grade features for modern web applications

Authentication & Security

  • JWT token-based authentication
  • OAuth 2.0 integration (Google, Facebook)
  • Two-factor authentication (2FA)
  • Role-based access control
  • Password encryption (bcrypt)
  • Security headers and CORS
  • SQL injection prevention
  • XSS protection

Real-Time Features

  • WebSocket connections
  • Live notifications
  • Real-time chat and messaging
  • Live data updates
  • Collaborative editing
  • Live tracking (orders, delivery)
  • Server-sent events (SSE)

Payment Integration

  • bKash, Nagad, Rocket integration
  • SSLCommerz payment gateway
  • Stripe for international payments
  • Subscription billing
  • Recurring payments
  • Payment reconciliation
  • Invoice generation
  • Refund processing

Performance Optimization

  • Database query optimization
  • Redis caching strategy
  • CDN integration
  • Image optimization and lazy loading
  • Code splitting and lazy loading
  • Server-side rendering
  • API response caching
  • Load balancing

Web Development Process & Timeline

Agile methodology for faster delivery and better results

1

Discovery & Analysis

1-2 weeks: Business requirement gathering, user research, competitor analysis, technical feasibility study, feature prioritization (MoSCoW method), technology stack selection, architecture design.

2

Design & Prototyping

2-3 weeks: Information architecture, wireframing, user flow diagrams, interactive prototypes, visual design (UI design), design system creation, user testing and feedback.

3

Backend Development

4-8 weeks: Database schema design, API architecture, authentication system, core business logic implementation, third-party integrations, background job setup, API documentation.

4

Frontend Development

4-8 weeks: Component development, state management setup, API integration, form validation, responsive design implementation, cross-browser testing, performance optimization.

5

Deployment & Launch

1-2 weeks: Server setup and configuration, domain and SSL setup, database migration to production, performance monitoring setup, analytics integration, user training and documentation.

Typical Project Timeline: Small projects: 2-3 months • Medium projects: 3-6 months • Large projects: 6-12 months • Enterprise projects: 12+ months

Pricing for Web Application Development

Investment based on project scope and complexity

SMALL

Small Web App

2,00,000 - ৳5,00,000
  • 10-15 pages/screens
  • Basic CRUD operations
  • User authentication
  • Database integration
  • Admin panel
  • Responsive design
  • 2-3 months development
  • 3 months free support
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LARGE

Large Web App

15,00,000 - ৳30,00,000
  • 40+ pages/screens
  • Multi-tenant architecture
  • Advanced integrations
  • Real-time features
  • Mobile responsive
  • API for mobile apps
  • Advanced security
  • Scalable infrastructure
  • 6-9 months development
  • 12 months free support
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Monthly Maintenance: ৳15,000 - ৳1,00,000 (Bug fixes, updates, server management, security monitoring, performance optimization, technical support)

Why Choose EcomTech for Web Development?

Your trusted technology partner in Bangladesh

Full-Stack Expertise

We handle everything from database design to frontend UI, eliminating coordination issues with multiple vendors. One team, complete solution.

Modern Technology Stack

We use proven, scalable technologies that ensure your application performs well today and grows with your business tomorrow.

Bangladesh Market Understanding

We integrate local payment systems, understand local regulations, and design for Bangladesh internet speeds and user behavior.

Agile Development Methodology

Iterative development with regular demos ensures you see progress and can request changes early in the process.

Post-Launch Support

We don't disappear after launch. Ongoing support ensures your application runs smoothly and evolves with your needs.

Security-First Approach

We implement industry-standard security practices to protect your data and your users' information from day one.

Transparent Communication

Weekly progress reports, regular demo sessions, and always available for questions. You're never left in the dark.

Scalable Architecture

We build applications that handle growth - from 100 users to 100,000 users without major rewrites or performance issues.

Ready to Build Your Web Application?

Let's discuss your project and create a custom solution for your business

Free consultation • Transparent pricing • Agile development • 100% satisfaction guarantee