// CUSTOM SOFTWARE STUDIO — DETROIT, MI
From custom websites and booking systems to CRM dashboards and business applications, I design and develop solutions around the way your business works.
Start a Project Explore My Work
Available for new projectsBased in Detroit, MIView my Fiverr profile →13 published case studies
Custom Software
Free online calculator tools site with 87 static tool pages — work, pay and everyday-math calculators —…
Custom Applications
Matrimonial web application for the Bangladeshi community in the US, in English and Bengali. Members build a…
Booking Systems
Website with a 3-step online booking system for Metro Star Limo, a Michigan limousine and ride-share company…
Booking Systems
Website and booking system for Metro Valet Parking, a downtown-Detroit valet and parking management company.…
Selected work from my own platforms — real products I designed, built and run.
Based in Detroit, MI — working across the US
SELECTED PROJECTS
Explore how selected web applications and business platforms address practical challenges through custom development.
13 published case studies
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 Lifetime Membership, and connect with matches through WhatsApp and email once an interest is accepted.
Profiles, membership, contact sharing and trust all had to work together — paid membership before a profile is searchable, contact details shared only after mutual acceptance, and verification that members can rely on.
A custom PHP and MySQL application with a payment-first profile wizard, one-time Lifetime Membership via Stripe, WhatsApp and email contact sharing after interest acceptance, and a verification and trust center.
Designed and developed by Khaled Mahmud.
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 private stats admin.
Dozens of tool pages had to stay fast and consistent and easy to add, with usage tracked privately without a third-party analytics account on every page.
A static tool-page system with a shared layout, one calculator per page, and a private PHP and SQLite stats admin that filters bots and hashes visitor IPs.
Designed and developed by Khaled Mahmud.
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, business transfer, long-distance rides and taxi tours.
A website with a three-step booking widget (ride details, vehicle choice with passenger and suitcase filters, contact details), airport pickup and drop-off including Detroit Metropolitan Wayne County Airport, and service pages for business transfer, city transport, long distance and taxi tours.
Designed and developed by Khaled Mahmud.
10 more published case studies.
Booking Systems
Website and booking system for Metro Valet Parking, a downtown-Detroit valet and parking management company. The public site covers hotel, commercial, corporate and event valet, monthly parking…
Valet Parking Booking
Business
Website with online service booking for Low Cost Comfort HVAC, a Metro Detroit heating and cooling company. Visitors can request a service appointment online and find furnace repair, AC service, heat…
HVAC Booking Service Business
Business Websites
Website for Nona's Diner, a family-owned diner in Allen Park, Michigan, serving all-day breakfast, burgers, soups, Coney dogs and Greek gyros. The site presents the menu with prices, opening hours,…
Restaurant Reservations
WordPress
Corporate Websites
Corporate website for True Brothers Commerce LLC, a Warren, Michigan-based wholesale distribution and Amazon FBA e-commerce company (registered LLC, established June 2025). The site presents…
Wholesale Amazon FBA
WordPress
Corporate Websites
Corporate website for SK Commerce LLC, a Michigan-based wholesale distribution company doing wholesale procurement and authorized marketplace retail.
Wholesale Marketplace
WordPress
Corporate Websites
Corporate website for DRP Commerce, a wholesale retailer that buys authentic products directly from brands and authorized distributors and sells them on Amazon through Fulfillment by Amazon (FBA).
Wholesale Amazon FBA
WordPress
Product Catalogs
Product catalogue website for Ningbo Henghe Commodity Co., Ltd, a Chinese manufacturer and supplier of home storage products — laundry, pet, closet and furniture storage — with a Quick Quote prompt.
Manufacturing Product Catalogue
WordPress
Product Catalogs
Website for a Hangzhou, China fashion-accessories manufacturer specialising in custom silk scarves, beachwear, bucket hats and cloth masks, sold wholesale.
Fashion Manufacturing
Private tool
No public screenshot — this is a private, login-only tool.
Custom Software
Private internal tool for wholesale sourcing for an Amazon FBA business: supplier and product research from saved data only. It is not a public site — access requires login.
Amazon FBA Sourcing Internal Tool
Business Websites
Tax, bookkeeping and multi-services company offering payroll, tax preparation, bookkeeping and accounting, and notary public services, founded by Sunnah Chowdhury.
Tax Bookkeeping Payroll Notary
No projects match your search or filter.
// SERVICES
Every service is quoted per project after a consultation — no public price lists, no fixed packages.
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
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
An admin panel built to your workflow: customers, jobs, invoices, autopay, roles and reports.
Discovery and requirements, a clickable prototype, MVP build, user accounts and subscriptions.
Recent work: DeshiBiye · NumberTally Tools · SourceNest
Shopify or WooCommerce build with product setup, payments, shipping and abandoned-cart emails.
Monthly hosting management, updates, backups, malware scans, uptime monitoring, small edits and a monthly SEO report.
WordPress websites built from scratch or improved: custom themes, secure plugin setup, speed and SEO setup, and training so you can edit content yourself.
A redesign of an existing website: fresh modern layout, faster loading, mobile-first fixes, clearer calls to action, and SEO and security improvements.
Every project starts with a short brief and a consultation — then a personalised scope, timeline and quotation.
// WHY WORK WITH ME
The same approach on every project — built around your business, and built to last.
Built for your actual business requirements, not a template forced onto your workflow.
You talk directly with the developer building your project — no account-manager telephone game.
Sites and systems that work on phones first and grow with your business.
Clean, understandable builds your team can actually use and maintain.
Scope, timeline and quotation agreed up front, with milestones you can follow.
Maintenance, updates and technical support arranged when agreed, after launch.
// DEVELOPMENT PROCESS
Five steps, agreed with you before any build starts — so you always know where your project stands.
Send a short brief: what you need, the features that matter, and the problem you are solving.
We discuss your goals, desired features and timeline, and whether the project is a fit.
You receive a personalized scope, timeline and quotation to approve before any build starts.
I design and build the site and the system behind it, tested as we go.
We test on real devices and real workflows, launch, and arrange support as agreed.
// TECHNOLOGY EXPERTISE
The platforms and tools I build with every day — 16 technologies across 8 categories.
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Reviews collected on this site. They are not presented as Fiverr reviews.
// FAQ
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
Guides and insights on custom websites, booking systems and business software — written for small business owners deciding what to build next.
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.
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.
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.
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
Submit a short project brief describing your requirements.
STEP 2
Review your business needs, desired features, and timeline.
STEP 3
Get a personalized project scope, timeline, and quotation.
