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Extent Technologies Limited
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All Capabilities/Software & Web Engineering/Website Development & Engineering
05/Next.js / TypeScriptSoftware & Web Engineering

High-Performance Next.js Web Platforms Built for Speed, Accessibility & Conversion

Modern React 19 architecture engineered for sub-second LCP, WCAG 2.2 AA accessibility, and SEO dominance.

Transform your corporate online presence with modern web engineering. Extent Technologies crafts bespoke, production-grade Next.js platforms that combine bleeding-edge performance, fluid responsive UI systems, local payment gateway integrations (bKash, Nagad, SSLCommerz), and rigorous search engine optimization.

Optimized for:Enterprise Corporate Groups & ConglomeratesHigh-Growth E-Commerce BrandsEducational Institutions & UniversitiesFinancial Institutions & Technology Companies
Call Dhaka NOC (+8809644-222444)WhatsApp Live Chat
Core Web Vitals95+ LighthouseSub-Second Largest Contentful Paint
Modern StackNext.js 16React 19, TypeScript & Turbopack
AccessibilityWCAG 2.2 AAUniversal Screen Reader & Keyboard Access
SEO ArchitectureFull SchemaJSON-LD & Canonical Optimization
Engineering Architecture

Four Core Architectural Pillars of Website Development & Engineering

Built on verified carrier-grade systems with redundant failovers, stringent data security, and enterprise SLA backings.

Sub-Second LCP

Sub-Second Next.js & Turbopack Architecture

We build with Next.js App Router and static pre-rendering, generating blazing-fast web experiences that load instantly on both mobile 4G/5G connections and enterprise broadband.

  • Static site generation (SSG) and incremental static regeneration (ISR) for instant loads
  • Automated WebP/AVIF responsive image optimization reducing bandwidth payloads
  • Zero layout shift (CLS < 0.05) and instant interaction readiness (INP < 100ms)
  • Production codebases written with 100% strict TypeScript type safety
Enterprise SpecificationVerified SLA
Bespoke Design

Tailwind Design Tokens & Fluid Responsive UI

Custom bespoke design systems built with Tailwind CSS design tokens, ensuring perfect visual hierarchy, brand consistency, and smooth interactions across all screen sizes.

  • Custom micro-interactions and smooth hardware-accelerated animations
  • Pixel-perfect responsive scaling across mobile phones, tablets, and ultra-wide 4K screens
  • Dark mode / high-contrast accessibility compliance built into the design tokens
  • Lightweight CSS footprint with zero bloat or unnecessary third-party libraries
Enterprise SpecificationVerified SLA
Top Search Ranking

Technical SEO & Structured Schema Dominance

Engineered from the ground up to rank prominently on Google search results through semantic HTML5, clean canonical URL structures, and comprehensive JSON-LD schemas.

  • Rich JSON-LD schemas for Organizations, LocalBusiness, Breadcrumbs, and FAQs
  • Dynamic automated XML sitemaps and search crawler robots.txt management
  • Optimized OpenGraph and Twitter card metadata for high-converting social sharing
  • Fast crawling indexing architecture verified through Google Search Console audits
Enterprise SpecificationVerified SLA
bKash / Nagad Ready

Local Bangladesh MFS & Gateway Integration

Seamless integration with local mobile financial services (bKash, Nagad, Rocket) and credit card gateways through automated IPN webhooks and fraud detection.

  • Native bKash, Nagad, Rocket, and Upay checkout integration
  • Multi-currency support and SSLCommerz / Shurjopay / Portpos gateway connectivity
  • Secure Instant Payment Notification (IPN) webhooks for real-time order confirmation
  • Bank-grade SSL/TLS cryptographic communication protecting user financial data
Enterprise SpecificationVerified SLA
Technical Due Diligence

Detailed Technical Specifications Matrix

Inspect the comprehensive physical, mechanical, network, and operational standards underpinning our Website Development & Engineering.

Frontend Stack & Frameworks

Spec 01
Core Web FrameworkNext.js 16 (App Router) + React 19
Programming LanguageTypeScript 5.x (Strict Type Checking)
Styling SubsystemTailwind CSS v4 with custom design tokens
Animation EngineFramer Motion & Lenis hardware-accelerated smooth scroll

Performance & Standards

Spec 02
Target Lighthouse Score95+ across Performance, Accessibility, SEO, Best Practices
Accessibility BenchmarkWCAG 2.2 Level AA Standard Compliant
Asset CompressionBrotli / Gzip + Next.js automated image optimization
Cross-Browser CompatibilityChrome, Safari, Firefox, Edge, iOS Safari, Android Chrome

Backend & Integrations

Spec 03
Content Management (CMS)Headless CMS (Strapi, Sanity, Payload) or Custom Admin
Payment GatewaysbKash Tokenized Checkout, Nagad, SSLCommerz, Stripe
API ProtocolRESTful JSON APIs and GraphQL endpoints
Database OptionsPostgreSQL, MySQL, Redis, Supabase

Maintenance & SLA

Spec 04
Hosting InfrastructureHosted on Extent Technologies Dhaka Cloud with sub-2ms BDIX
Security HardeningContent Security Policy (CSP), HSTS, DDoS Protection
Source Code Ownership100% full IP and source code repository transfer to client
Post-Launch SupportIncluded warranty period + ongoing maintenance SLAs
Proven Deployments

Enterprise Deployment Scenarios

Discover how leading organizations leverage Website Development & Engineering to resolve mission-critical technical bottlenecks.

Corporate & Manufacturing Groups

Enterprise Corporate Conglomerate Web Portal

Problem Solved:Outdated WordPress websites are vulnerable to security exploits, load slowly, and fail to convey corporate authority.
Key Architecture Highlights:
Custom Next.js corporate portal delivers instantaneous page transitions
Rich interactive subsidiary showcases, investor relations, and board of directors profiles
Strict Content Security Policy eliminates cross-site scripting vulnerabilities
Retail, Fashion & Consumer Goods

High-Conversion E-Commerce & Retail Platform

Problem Solved:Slow mobile checkout pages lead to massive shopping cart abandonment in Bangladesh.
Key Architecture Highlights:
Streamlined 2-step checkout with one-tap bKash and Nagad payment tokenization
Sub-second catalog filtering across thousands of product SKUs
Automated SMS and email delivery notifications integrated with local courier APIs
Higher Education & Training

Institutional & University Digital Campus

Problem Solved:Admissions season brings sudden 50x traffic surges that crash conventional campus web servers.
Key Architecture Highlights:
Statically pre-rendered course catalogs withstand massive admissions traffic spikes
WCAG 2.2 AA accessibility ensures full usability for students with disabilities
Integrated online admission forms with direct applicant document upload pipelines
Implementation Timeline

Transparent 4-Step Deployment Workflow

From initial technical sizing to live production handover, our Dhaka engineering team guides every phase.

01Week 1

Discovery & UX Wireframing

We analyze your audience, audit competitor platforms, and create high-fidelity UI/UX wireframes tailored to your brand identity.

Verified SLA Step
02Week 2 to 3

Frontend Engineering & Component Design

Developing the responsive Next.js frontend, micro-animations, and fluid layout with strict TypeScript standards.

Verified SLA Step
03Week 4

Backend, API & Gateway Integration

Connecting headless CMS, database models, payment gateways, and third-party APIs with automated test suites.

Verified SLA Step
04Launch & Ongoing SLA

Performance Audit, SEO & Launch

Rigorous cross-device QA, Lighthouse optimization, SSL configuration, and deployment on our Dhaka Tier III cloud.

Verified SLA Step
Authoritative Answers

Frequently Asked Questions

Common technical and commercial questions about Website Development & Engineering.

WordPress relies on bulky plugins, dynamic PHP database queries on every page load, and frequent security vulnerabilities. Next.js statically pre-renders pages into pure HTML/CSS before users even request them, making your website 5x to 10x faster, immune to typical database injection exploits, and vastly favored by Google's Core Web Vitals search algorithm.
Tailored Enterprise Sizing

Ready to deploy Website Development & Engineering with guaranteed SLA?

Speak directly with our Dhaka infrastructure and software leads. We will prepare an exact architectural blueprint and commercial proposal within 24 hours.

Direct NOC Hotline: +8809644-222444
RJSC Inc. No. C-194650BASIS Member GE-24-08-030DBID No. 329180392APNIC ASN: AS153377
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