Infinity Marketr
Custom Web DevelopmentNext.js & Full-Stack Apps

High-Performance Websites & Custom Web Applications

No slow, bloated templates. We build custom, ultra-fast web platforms using Next.js, React, Node.js, and TypeScript—engineered for speed, enterprise security, and measurable conversion growth.

Starting Price
BDT 40,000+/ one-time
View Packages
Desktop and mobile interfaces, code, infrastructure, and security symbols representing custom web development
Clean Code Architecture

Engineering Excellence Standards

  • 100% custom codebase in Next.js 15, TypeScript, Tailwind CSS, and React
  • Sub-second page load times with 95+ Google PageSpeed mobile scores
  • Zero dependency on slow, bloated plugins or vulnerable drag-and-drop builders
  • Full source code ownership with modular Git repositories and CI/CD pipelines
Next.js & Modern React Stack

Blazing Speed, Built-In SEO, and Total Scale

We architect server-rendered React applications that load instantly on 4G mobile networks across Bangladesh and rank effortlessly on search engines.

Headless CMS & API Flexibility

Easy Content Editing Without Developer Bottlenecks

Empower your marketing team with intuitive content management while keeping the frontend codebase lightning-fast and secure.

Engineering Philosophy

Why Modern Businesses Choose Custom Code

Pre-made website themes are weighed down with hundreds of unnecessary plugins, security vulnerabilities, and slow load times that hurt conversion rates and Google rankings.

We build custom web solutions tailored precisely to your operational workflow, brand design system, and technical scaling requirements in Bangladesh.

Lightning Speed

Server-rendered pages that load in milliseconds across all devices.

Enterprise Security

Protected against malware, SQL injections, and plugin exploits.

Mobile-First UX

Fluid, intuitive mobile interfaces crafted for effortless conversions.

Custom Workflows

Integrate ERPs, CRMs, booking engines, and payment gateways.

Free Technical Consultation

Have a custom web application or website concept in mind?

Our lead engineers will review your feature requirements and provide an architectural blueprint with cost estimations.

Engineering Capabilities

Full-Stack Web Development Solutions

Next.js & React Web Applications

Blazing-fast server-rendered web applications with dynamic routing, instant page transitions, and modern React architectures.

  • Server-Side Rendering (SSR / SSG)
  • TypeScript Type Safety
  • Modular Component Systems

Conversion-Focused UI/UX Design

Custom interactive interfaces designed for maximum user engagement, clear visual hierarchies, and high lead-to-customer conversion rates.

  • Figma Interactive Wireframing
  • Mobile-First Responsive Layouts
  • Accessibility & WCAG Compliance

Backend API & Database Architecture

Scalable Node.js, Express, or Next.js API endpoints connected to PostgreSQL, MongoDB, or Redis databases with secure authentication.

  • RESTful & GraphQL API Endpoints
  • PostgreSQL / MongoDB Schemas
  • JWT & OAuth Role-Based Auth

Headless CMS & Content Workflows

Empower your marketing team to publish content effortlessly without developer dependency using Sanity, Strapi, or Headless WordPress.

  • Custom Editorial Dashboards
  • Structured Content Models
  • Real-Time Preview Environments

100% Core Web Vitals & Speed Optimization

We write clean, lightweight code that achieves 90+ Lighthouse performance scores with sub-second page loads on mobile networks.

  • Sub-Second TTFB & LCP
  • Automated Asset Compression
  • Edge Caching & CDN Deployment

Enterprise Security & SLA Support

Strict OWASP security standards, encrypted data pipelines, automated nightly backups, and ongoing developer SLA maintenance.

  • HTTPS & CSP Security Headers
  • Automated CI/CD Deployments
  • Ongoing SLA Support & Maintenance
Custom Dev Proposal

Looking for dedicated software engineers to build your MVP or SaaS platform?

We build scalable cloud applications with modern microservices, CI/CD pipelines, and SLA support.

Modern Technology Stack

Built with World-Class Web Standards

Frontend Architecture

Next.js 15, React 19, TypeScript, Tailwind CSS, Framer Motion

Backend & APIs

Node.js, Next.js Server Actions, Express, REST, GraphQL

Databases & Storage

PostgreSQL, Prisma ORM, MongoDB, Redis, Supabase, AWS S3

Cloud & Deployment

Vercel, AWS Cloud, Cloudflare Edge, Docker, GitHub Actions

Agile Development Sprints

Our 4-Stage Development Lifecycle

01Sprint 1

Discovery & Technical Architecture

We map user stories, wireframe UI flows, and define database schemas and API specifications.

02Sprint 2

UI/UX Prototyping & Design

We create interactive Figma prototypes tailored to your brand identity and conversion goals.

03Sprint 3–5

Full-Stack Development & Testing

Our engineers build frontend components, APIs, CMS integrations, and automated test suites.

04Launch

QA, Speed Audit & Production Launch

We run end-to-end security audits, Core Web Vitals checks, DNS migration, and production deployment.

Indicative starting points

Custom Web Development packages

Use these packages as a planning guide. Final scope depends on your goals, current setup, access, complexity, and delivery requirements. Prices are in BDT and exclude VAT.

Business Website

BDT 40,000+
one-time

Professional custom website for service businesses, agencies, or startups.

  • Up to 8 Pages
  • Mobile Responsive Design
  • CMS Integration
  • Contact & Lead Forms
2 more included
  • Basic SEO Setup
  • 3-Month Support

Web Application

BDT 1,20,000+
one-time
Most chosen

Custom web app with authentication, dashboard, and business logic.

  • Custom UI/UX Design
  • User Auth & Roles
  • Admin Dashboard
  • API Development
2 more included
  • Database Architecture
  • 6-Month Support

Enterprise Platform

BDT 3,00,000+
custom scope

Full-scale SaaS, marketplace, or enterprise system with integrations.

  • Full Discovery & Architecture
  • Scalable Cloud Infrastructure
  • Multi-role System
  • Third-Party Integrations
3 more included
  • Data Migration
  • Dedicated Dev Team
  • 12-Month SLA Support
Build a connected growth system

Related services worth exploring

These capabilities often work alongside this service. Explore the ones that match your next bottleneck or opportunity.

Landing Page Design

Turn paid and organic traffic into more enquiries, bookings, or purchases with focused conversion journeys.

Explore Landing Page Design

Website Maintenance

Keep your website secure, supported, monitored, and ready for the next improvement cycle.

Explore Website Maintenance

Website Speed Optimization

Find and resolve the performance issues slowing down user experience, SEO, and conversion paths.

Explore Website Speed Optimization

Server-Side Tracking & GA4 Setup

Create a reliable measurement foundation across GA4, GTM, pixels, server-side signals, and reporting.

Explore Server-Side Tracking & GA4 Setup
Build Your Custom Web Solution

Ready to build a fast, modern website that sets you apart?

Get in touch with our engineering team for an architectural consultation and milestone proposal.

Build a Clearer Roadmap

Tell us what your digital growth system needs next.

Share what you need to improve across search visibility, paid acquisition, web design or development, content, analytics, conversion, or automation. We will identify key dependencies and recommend a practical starting scope.

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