Custom web application development, from first version to launch.
Custom web application development for software your customers or staff sign in to: a customer portal, an internal tool, a booking system or a SaaS product.
- Custom
- Wrkbase. software and website, built from scratch without WordPress
- 0.8 s
- Mayabee. largest content on screen, home page on a throttled phone, 23 Oct 2026
- 60%
- Moneybag. less time to onboard a merchant
When a website is no longer enough
A website shows information. A web application lets people do things with their own data: sign in, place orders, manage a team, read reports.
The usual way
- Orders, bookings and users tracked in spreadsheets
- Business rules forced into plugins
- Every new request adds manual work
How I do it
- One place where people sign in and work
- Your rules written into the app
- A product you can keep growing
What I build
A first version you can sell
The core of the product built first and built properly, so real users can start on it within weeks, not quarters.
Accounts, roles and permissions
Who can see and do what, decided up front and logged. Mayabee has owner, manager, orders and content roles.
Dashboards and reporting
The numbers a team needs on one screen, from orders and stock to hours worked and payroll.
Integrations
Payments, email, CRM, couriers and analytics connected, so data lands where your team already works.
Workflow automation
Repetitive steps turned into rules the app follows, so your team stops copying data between tools.
AI agents inside your product
Language models connected to your app, acting only after a person approves, as built into Wrkbase.
Launch and care
Deployment, backups, monitoring and changes after launch, through a website care plan.
Web applications I've built
Pick a project to see the result and the live site.
Wrkbase
SaaS development from scratch for my own product: I designed and built the software, the AI agent and the website it is sold from.
Customsoftware and website, built from scratch without WordPress
Mayabee
A custom ecommerce website for Mayabee, a handbag and jewellery shop in Dhaka: English and Bangla storefront, an admin dashboard for orders, cash on delivery, stock and reports.
0.8 slargest content on screen, home page on a throttled phone, 23 Oct 2026
Moneybag
A custom WordPress plugin and website for Moneybag, a licensed payment gateway, built for security and speed.
60%less time to onboard a merchant
Web application development services
How a web application project runs
- Step 01
Study your competitors
I look at what competitors do well and where they leave gaps, before a single screen is drawn.
- Step 02
Design the UI and UX
I design the screens myself, so what you approve is what gets built.
- Step 03
Build frontend to backend
Pages, accounts, orders, payments and the admin dashboard, built as one job.
- Step 04
Launch and look after it
Speed checked on a phone, then backups, monitoring and changes through website care.
Client recommendations
Recommendations from clients and colleagues, copied word for word from my LinkedIn profile.
Sakib has done a fantastic job with our Tabby 2.0 launch work along with continuous maintenance and updates on Tabby's website. He is very responsive and dedicated to any project he works on. I highly recommend him.
He is highly reliable and resourceful, with a great ability to solve problems effectively, even with limited tools and resources. His practical approach and problem-solving skills make him a valuable member of our team.
Sakib Islam is an exceptional Senior WordPress Developer with deep expertise in custom development, performance optimization, and clean, scalable code. Reliable, proactive, and easy to work with, they consistently deliver high-quality results.
His attention to detail, commitment to clean and scalable code, and deep understanding of modern frontend frameworks have consistently elevated the quality of our digital products.
His ability to translate ideas into functional designs and optimize website performance sets him apart. Beyond his technical skills, Sakib is detail-oriented, creative, and an excellent communicator.
I had the pleasure of working with Sakib Islam on several projects, and I was really happy with his performance and commitment.
Every one of these can be checked onmy LinkedIn recommendations ↗.
Your questions about custom web application development
Ask something else on WhatsAppHow much does web application development cost?
First versions start at $999 and most land between $999 and $4,000, with a written quote after I read your brief. Agency price guides put a basic web app MVP at $10,000 to $50,000 or more. I work solo from Dhaka, which is why my prices are lower, and you still get one developer who designs and builds it.
What is the difference between a website and a web application?
A website mainly shows information. A web application lets users sign in and work with their own data: orders, bookings, tasks, reports. Many businesses need both, like a store with an order dashboard.
Can you build a SaaS product from an idea?
Yes. I built Wrkbase from an idea to a working platform with sign-in, tasks, time tracking, attendance, payroll and an AI agent. I start with the one thing users must do and build outward from there.
What technology do you use?
I choose the stack for the job. Mayabee, for example, uses a fast Astro frontend, a PHP API and a MySQL database, with an admin dashboard on top. You own the code.
Can you add AI features to a web application?
Yes. Wrkbase includes an AI agent that carries out approved actions and keeps a transparent activity log. I add AI only where it solves a problem your users have.
How long does a first version take?
Usually 6 to 12 weeks for a focused first version, depending on the screens, roles and integrations. The quote lists the scope and the timeline.
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