DeshiBiye
Custom Applications
Matrimonial web application for the Bangladeshi community in the US, in English and Bengali. Members build a profile through a guided wizard, hold a one-time…
Matrimony Custom Software Bilingual
Available for new projects
// CUSTOM SOFTWARE STUDIO — DETROIT, MI
Custom Websites.Powerful Software.Built for Your Business.
I'm Khaled Mahmud, a web developer based in Detroit, Michigan. I design and develop custom websites, booking systems, CRM dashboards, and digital platforms that solve real business problems.
Metro Valet Parking
Website and booking system for Metro Valet Parking, a downtown-Detroit valet and parking management company. The public site covers hotel, commercial, corpor…
NumberTally Tools
Free online calculator tools site with 87 static tool pages — work, pay and everyday-math calculators — monetized with Google ads and measured through a priv…
DeshiBiye
Matrimonial web application for the Bangladeshi community in the US, in English and Bengali. Members build a profile through a guided wizard, hold a one-time…
Metro Star Limo
Website with a 3-step online booking system for Metro Star Limo, a Michigan limousine and ride-share company offering airport transfers, city transport, busi…
Selected work from my own platforms — real products I designed, built and run.
12Published case studies · View the work →
8Services offered
12Published articles
24hResponse within 24 hours
DetroitBased in Detroit, MI — working across the US
// FEATURED PORTFOLIO
Featured work
Selected work from my own platforms — real products I designed, built and run.
NumberTally Tools
Custom Software
Free online calculator tools site with 87 static tool pages — work, pay and everyday-math calculators — monetized with Google ads and measured through a priv…
Calculators Tools
Metro Star Limo
Booking Systems
Website with a 3-step online booking system for Metro Star Limo, a Michigan limousine and ride-share company offering airport transfers, city transport, busi…
Limo Booking
// SERVICES
Services and solutions
Every service is quoted per project after a consultation — no public price lists, no fixed packages.
Business Website Development
5-8 page custom site (WordPress or custom code), mobile-first, on-page SEO, contact forms and speed setup.
Recent work: Nona's Diner · Low Cost Comfort HVAC
Booking & Reservation Systems
Self-hosted booking for appointments, tables or rides, with calendar, deposits, reminders and an admin view.
Recent work: Metro Valet Parking · Metro Star Limo · Low Cost Comfort HVAC
Custom Dashboards & CRM
An admin panel built to your workflow: customers, jobs, invoices, autopay, roles and reports.
SaaS & Custom Web Applications
Discovery and requirements, a clickable prototype, MVP build, user accounts and subscriptions.
Recent work: DeshiBiye · NumberTally Tools · SourceNest
E-commerce Development
Shopify or WooCommerce build with product setup, payments, shipping and abandoned-cart emails.
Website Maintenance & Support
Monthly hosting management, updates, backups, malware scans, uptime monitoring, small edits and a monthly SEO report.
WordPress Development
WordPress websites built from scratch or improved: custom themes, secure plugin setup, speed and SEO setup, and training so you can edit content yourself.
Website Redesign & Optimization
A redesign of an existing website: fresh modern layout, faster loading, mobile-first fixes, clearer calls to action, and SEO and security improvements.
// WHY WORK WITH ME
Why work with me
The same approach on every project — built around your business, and built to last.
Custom solutions
Built for your actual business requirements, not a template forced onto your workflow.
Direct communication
You talk directly with the developer building your project — no account-manager telephone game.
Mobile-friendly and scalable
Sites and systems that work on phones first and grow with your business.
Usability and maintainability
Clean, understandable builds your team can actually use and maintain.
Clear project milestones
Scope, timeline and quotation agreed up front, with milestones you can follow.
Ongoing support
Maintenance, updates and technical support arranged when agreed, after launch.
// DEVELOPMENT PROCESS
Development process
Five steps, agreed with you before any build starts — so you always know where your project stands.
Requirements
Send a short brief: what you need, the features that matter, and the problem you are solving.
Consultation
We discuss your goals, desired features and timeline, and whether the project is a fit.
Proposal & Planning
You receive a personalized scope, timeline and quotation to approve before any build starts.
Design & Development
I design and build the site and the system behind it, tested as we go.
Testing, Launch & Support
We test on real devices and real workflows, launch, and arrange support as agreed.
// TECHNOLOGY EXPERTISE
Technology expertise
The platforms and tools I build with every day — 16 technologies across 8 categories.
AI & Tools
1 technology
CMS Platforms
3 technologies
Custom Software
4 technologies
eCommerce
1 technology
Frontend Development
3 technologies
Marketing Tools
1 technology
Other Technologies
2 technologies
Payments
1 technology
What clients say
Reviews collected on this site. They are not presented as Fiverr reviews.
// FAQ
Frequently asked questions
You do. Ownership, hosting and handover are agreed in writing per project before work begins, so there is no surprise at launch.
Every project has different requirements, functionality, and complexity. Contact me with your project details, and I'll prepare a personalized quotation.
Discovery is the consultation step where we map your requirements before a proposal. Any paid discovery work is explicitly agreed with you before it starts — it is never assumed.
Yes. You can request an initial consultation to discuss your project and determine the next steps.
Project timelines depend on the scope, technical requirements, and complexity. A proposed timeline will be included after reviewing your requirements.
An optional monthly Care Plan covers hosting management, updates, backups, malware scans, uptime monitoring, small edits and a monthly SEO report. Without a plan, launch training is still included.
// FEATURED INSIGHTS
Featured insights
Guides and insights on custom websites, booking systems and business software — written for small business owners deciding what to build next.
How Much Does a Custom Business Website Cost in 2027?
There is no single price for a custom business website in 2027. The cost depends on your goals, design, features, integrations, and ongoing care — and a clear brief is the fastest way to get a quote you can trust.
Custom Website vs WordPress: Which Is Better for Your Business?
WordPress and a custom website can both serve a business well — the right choice depends on how you publish content, how much control you need, and how you plan to grow. This guide compares them side by side so you can decide with confidence.
10 Signs Your Business Website Needs a Redesign
Your website should be winning customers, not quietly losing them. Here are the ten clearest signs your business website needs a redesign — and what to do about each one.
Let's Build Something That Works for Your Business.
Every business is different, and so is every project. Share your goals, the features you need, and the challenges you're facing. I'll review your requirements and provide a customized proposal.
STEP 1
Tell Me About Your Project
Submit a short project brief describing your requirements.
STEP 2
Let's Discuss Your Goals
Review your business needs, desired features, and timeline.
STEP 3
Receive a Custom Proposal
Get a personalized project scope, timeline, and quotation.