Who you are actually hiring
Most "WordPress experts" in BD are just plugin installers. I am not.
Hiring a WordPress website development expert in BD should mean more than hiring a plugin installer. Some people install a downloaded theme and call it a day. Others understand what WordPress is doing under the hood. I sit in the second group. I know what a bloated theme does to your load time, and why your shared host slows to a crawl at peak hours.
I also know how a stack of clashing plugins quietly turns your admin panel into a minefield. When clients come to me after a cheaper build went wrong, that is almost always the story. Too many plugins, a nulled theme, no updates, and a site nobody dares to touch.
I work as a solo developer on purpose. Agencies in Dhaka sell you a senior in the meeting. Then they quietly hand the work to whoever is free. I do the opposite. The person you talk to is the person writing the functions.php, setting up the caching and testing the checkout on a real phone before launch. That means fewer people to manage, faster decisions and one point of accountability when something needs fixing.
About five years of this work has taught me what WordPress is truly good at, and where it is the wrong tool. It is excellent for content-heavy business sites, WooCommerce stores and blogs. It also suits any site where the owner wants to edit pages without calling a developer every week. If your idea really needs a custom web app instead, I will tell you honestly. I won't force it into WordPress and charge you for the privilege.
Pricing is plain. WordPress builds start at 50,000 BDT, with set tiers at 50,000, 90,000 and 1,50,000 BDT. The tier depends on page count, custom design and store complexity. Fully custom work begins at 3,00,000 BDT. Payment is 50% to start and 50% on launch, and you approve the design before you pay for it. No surprise invoices, and no "scope changed" excuses halfway through.
See pricing in BDT