★★★★★
Sample
Delivered our React customer portal on time and on budget. Clean code, good documentation, genuinely pleasant to work with. We have since extended the contract.
Custom web applications built on the MERN stack
When an off-the-shelf platform no longer fits, we design and build custom web applications: SaaS products, customer portals, booking systems, dashboards and APIs using React, Node.js, Express and MongoDB — with clean architecture, tests and documentation your future team will thank you for.
What's included
Everything you get with Custom Web Apps (MERN).
MVP & SaaS development
Ship a working product in weeks with authentication, billing (Stripe) and an admin panel.
Customer portals & dashboards
Role-based access, real-time data, reporting and exports.
APIs & integrations
REST/GraphQL APIs, third-party integrations and data pipelines.
Deployment & DevOps
Vercel, AWS or DigitalOcean, CI/CD, monitoring, backups and scaling.
Security & testing
OWASP-aware code, automated tests and staging environments.
Headless & hybrid builds
Next.js front ends on top of WordPress or Shopify when you need both.
When to go custom
WordPress and Shopify cover most business websites. You need a custom application when your product is the software: multi-tenant SaaS, marketplaces, portals with complex permissions, workflow tools, or anything with real-time data. We will tell you honestly if a platform would serve you better — it often does.
Engineering you can build on
We write TypeScript with a clear folder structure, automated tests for critical paths, environment-based configuration, and README documentation. Whether you hire in-house developers later or keep working with us, the codebase is a foundation, not a liability.
From idea to first users
Our MVP process is designed to get a real product in front of real users fast: authentication, a core workflow, Stripe billing and an admin view, deployed with monitoring. Then we iterate based on what users actually do.
How it works
From first call to launch.
Discovery workshop
User stories, data model and a prioritised backlog — you get a written scope and estimate.
Design & architecture
Clickable prototype plus the technical plan: stack, hosting, integrations.
Sprints
Two-week sprints with demos; you see working software every fortnight.
Launch & support
Deployment, monitoring, documentation and a support retainer if you want one.
FAQ
Questions clients ask about Custom Web Apps (MERN).
How much does a custom web application cost?
MVPs typically start at $5,000–$15,000; full products with multiple user roles, integrations and billing range from $20,000 upwards. We scope in a paid discovery workshop so the estimate is based on real requirements.
Why MERN?
One language (JavaScript/TypeScript) across the stack, a huge talent pool, excellent performance for real-time and data-heavy apps, and easy hosting on modern platforms. We also work with Next.js, PostgreSQL and Laravel where they fit better.
Who owns the code?
You do. Everything is delivered in your own Git repository with documentation and deployment instructions.
Which time zones do you work in?
Our team is based in Dhaka (GMT+6) and keeps overlapping hours with the US East Coast, the UK, Central Europe and Australia. You get same-day replies and scheduled calls in your business hours.
How do payments work?
Fixed-price projects are split into milestones (typically 40% to start, 40% at design approval, 20% at launch). Retainers are billed monthly. We invoice in USD, GBP, EUR or AUD via Wise, PayPal or bank transfer.
Other services
Often combined with Custom Web Apps (MERN).
WordPress Development
Custom themes, WooCommerce, migrations and speed rescues — built to rank and load in under a second.
From $1,500 ExploreShopify Development
Conversion-first Shopify and Shopify Plus stores, custom Liquid themes, apps and CRO that lift average order value.
From $1,800 ExploreSEO & AI Search Optimisation
Technical SEO, content hubs and entity optimisation so you rank on Google and get cited by ChatGPT, Perplexity and AI Overviews.
From $800 Explore