Open to full-time & contract rolesDhaka, Bangladesh (UTC+6)
I turn ideas into fast, secure products: Next.js and Node on the surface, PostgreSQL and MongoDB underneath, and just enough motion to make them unforgettable.
Everyday tools & engineering stack
Selected work
Live products across EdTech, digital commerce, AI voice, esports and offline-first apps.
All projects
EdTech · Cloud Architecture
A high-scale multi-vendor learning management system and merchandise platform modeled on Udemy & Coursera, featuring Bunny Stream HLS video, Stripe & SSLCommerz split payouts, and automated background jobs.
Fintech · E-commerce
A high-traffic e-commerce platform for gaming currency, top-ups and gift cards with instant ZiniPay payment verification, automated Telegram bot fulfillment, and customer wallet systems.
AI Agents · Healthcare
An automated healthcare reservation platform with real-time conversational voice scheduling via Vapi AI, strict schedule locking, and Resend transactional emails.
About
I'm Emon, a full-stack engineer in Dhaka. I build fast, secure Next.js products, from payment-automated storefronts to AI voice booking agents, and I care as much about how they feel as how they run.
Full-stack apps, AI systems & codebases
Direct production & business platforms
Collaborative repos, PRs & team merges
On-time delivery & resilient architecture
What I do
From the first schema to the last pixel of motion.
All services
export async function POST(req: Request) {
const input = CourseSchema.parse(await req.json());
const course = await db.course.create({
data: { ...input, status: "DRAFT" }
});
return Response.json(course, { status: 201 });
}Multi-tenant platforms, portals, storefronts and internal admin consoles, built end to end.
From relational database schema design to the last pixel: typed APIs, server-rendered Next.js pages, and interfaces that stay fast and maintainable as the product scales.
Double-entry bookkeeping, automated vendor split payments and gateway reconciliation.
Append-only double-entry financial ledgers recording transactions in integer minor units (amountCents) to eliminate rounding drift across multi-vendor sales, Stripe Connect Express splits, and BullMQ batch payouts for local gateways.
Multi-bitrate adaptive HLS streaming with dynamic student DRM watermarking.
Enterprise video infrastructure built on Bunny Stream and Cloudflare R2: chunked TUS protocol uploads, server-side signed playback tokens, and dynamic canvas student watermarks that deter unauthorized screen captures.
Conversational agents that book, answer and hand off, wired to live databases.
Conversational voice agents and automation workflows that talk to your database, your calendar and your messaging, with guardrails and atomic transaction locking around every action.
Checkout flows that confirm, reconcile and fulfill orders automatically.
Payment-gateway integrations with signed webhooks, cryptographic idempotency and instant digital voucher delivery, so orders finish in under 3 seconds without manual administrative overhead.
Live brackets, rosters and dashboards engineered for surge traffic.
Platforms that stay correct while thousands of concurrent users interact: role-based access control, WebSocket updates, and TanStack Query caching that absorbs registration surges.
Automated multi-device regression suites and WCAG 2.1 accessibility compliance.
Preventing production regressions with Playwright headless browsers: automated viewport testing (1440px desktop & 390px mobile), user journey validations, and automated @axe-core/playwright accessibility audits.
Zero-downtime releases, PM2 cluster management, and AWS cloud hosting.
Automated CI/CD pipelines, Docker containerized services, and production AWS infrastructure with atomic rollback protection and Nginx reverse proxies.
Experience
Open to full-time & contract roles. Frontend or full-stack, remote or on-site.
Independent
Designing and shipping full-stack products end to end: payment-automated storefronts, esports platforms and AI voice booking.
Lilium Info Tech
Modernised and optimised client-side applications across the company's product suite.
IBCSX PRIMEx
Supported database design, MVC backend routing and admin dashboard work for commercial client platforms.
Kind words
Emon took our checkout from a fragile prototype to something we trust with real money. Payments confirm on their own and nobody has to babysit orders anymore.
He thinks about the database and the button at the same time. Rare combination. Every pull request came with a clear explanation of why, not just what.
The voice booking flow worked on the first demo. Edge cases like double bookings were already handled, which is the part most people forget.
Our animations used to fight the framework. Emon rebuilt them so the pages feel smooth and the Lighthouse scores actually went up.
Reliable, communicative and fast. He ships small, working pieces and keeps you in the loop, so there were never any surprises at the end.
How I work
We start with the core problem, user journey and constraints before any technology is chosen.
Data models, API contracts and screen architectures are locked early so the build runs without surprises.
Typed end to end, shipped in small verified slices you can click through along the way.
Deployed to production, measured against Core Web Vitals, and handed over with complete documentation.
Full-time and contract roles in full-stack and frontend engineering. I'm happiest on products that combine a solid backend architecture with a high-quality, motion-rich interface.
Next.js 16 and React 19 with TypeScript and Tailwind CSS v4 on the frontend; Node.js, Express, and Redis BullMQ queues on the backend; PostgreSQL and MongoDB Atlas for data; and Docker, AWS EC2, and PM2 for production deployments.
I'm in Dhaka, Bangladesh (UTC+6). Email is the fastest way to reach me (maremon15@gmail.com), and I'm experienced working smoothly across asynchronous and remote timezones.
Yes. Dent-Assist AI is a live conversational voice booking system built on Vapi AI and Prisma, San Uni Academy embeds an OpenAI GPT-4o-mini student tutor, and I use agentic workflows daily to architect and secure code.
Landing pages and prototypes usually ship in 1 to 2 weeks. Production web apps, SaaS dashboards, and full-stack platforms generally take 3 to 6 weeks depending on scope.
Send a brief through the contact page or email maremon15@gmail.com directly. A quick overview of the product requirements is plenty to begin.
Pages
Projects
Notes
Actions
Elsewhere