SERVICE / WEB DEVELOPMENT
Web Development by a Full-Stack Developer in Sylhet, Bangladesh
I design and build fast, maintainable web applications — from marketing sites that need to load instantly to internal dashboards and client portals that carry real business logic. Every build is full-stack: the interface, the API behind it, the database, and the deployment.
Clients range from healthcare and pharmacy businesses to financial-services teams and non-profits. The work is delivered remotely from Sylhet, Bangladesh, with the same engineering standards I apply as Principal Systems Architect at Spacebly.
What you get
Custom web applications
Client portals, dashboards, booking and ordering flows, and SaaS products built with React and TypeScript on a typed API.
Business and marketing websites
Fast, search-friendly sites with server-side rendering or prerendering where SEO matters, plus WordPress when the team needs to edit content themselves.
Backend and data layer
Express, FastAPI, or Supabase/PostgreSQL backends with authentication, role-based access, and clean data models.
Performance and SEO foundations
Core Web Vitals, crawlable rendering, structured data, and sitemaps — built in from the first commit, not bolted on later.
Deployment and hosting
CI/CD pipelines, Cloudflare in front of your origin, and self-hosted or managed infrastructure with monitoring.
Technology
React, TypeScript, Vite, Server-side rendering, Node.js, Express, FastAPI, Supabase, PostgreSQL, WordPress, Cloudflare.
Related projects
- Together CFO — built with Express (live site)
- Financial Fusion — built with React Js (live site)
- Avella Fertility — built with React (live site)
- Warrington Pharmacy — built with Vite (live site)
- Medical Supplies DME — built with Vite, SSR (live site)
- SEEK — built with Vite (live site)
How it works
- Discovery call. A 30-minute call to understand the problem, constraints, and what success looks like.
- Scoped proposal. A written scope with milestones, timeline, and cost — fixed-price or hourly, whichever fits the work.
- Build in milestones. Working software delivered in small increments with regular demos, so you can steer early.
- Handover and support. Documentation, credentials, and a walkthrough — plus ongoing maintenance if you want it.
Frequently asked questions
What kind of websites and web apps do you build?
Custom web applications (portals, dashboards, SaaS products), business and marketing websites, and e-commerce or ordering flows. Live examples include Together CFO, Financial Fusion, Avella Fertility, Warrington Pharmacy, Medical Supplies DME, and SEEK.
Do you build websites for businesses in Sylhet and the rest of Bangladesh?
Yes. I work with businesses in Sylhet, across Bangladesh, and internationally. Projects are run remotely with regular demos, so location never slows delivery down.
Which technology will you use for my website?
It depends on the job. Content-heavy sites that a non-technical team edits often suit WordPress; products with real application logic suit React and TypeScript with a Node.js, FastAPI, or Supabase backend. I recommend the simplest stack that will still hold up in two years.
Other services
Work with Saiki Sarkar
Have a web application, automation, or API project? See how engagements work, book a 30-minute call, or email ytosko@ytosko.dev.