⌘CMJHBPortfolioA small corner of the internet.
Bangladesh
Portfolio — cmjhb.comAqua + Liquid Glass
Open to thoughtful collaborations

Hey, I'm Jubayer ✳

I build things
that feel right.✦

Developer by craft. Designer at heart.
Turning ideas into thoughtful digital experiences,
one detail at a time.

Based in Bangladesh · Building for the web
New in the open · Sentinel-VC Aqua soul. Glass finish.
jubayer.profile⌘ I
C. M. Jubayer Hossain Bappy
C. M. Jubayer Hossain BappyChairman & CEO · Bitiac Group
Made with intention.Code meets a little creativity.
Currently building HeyNivra
6+Years of experience
100+Completed client projects
1 + 3Live parent · Upcoming sister concerns
Thoughtful design.
Dependable development.

01 / Selected focus

Work, with purpose.

A little less noise. A lot more care.
Personal projectComing soon

HeyNivra↗

Something new. Built with intention.

Building since July 2026heynivra.com

Client work

A hundred projects.
One approach.

Make it useful. Make it intuitive. Make it last. Over 100 completed client projects across websites, online stores and custom interfaces.

Web applicationsWordPress & WooCommerceUI / UX & web design
Have something in mind?

02 / Out in the open

Built. Shared. Still evolving.

Open source & independent research.
sentinel-vc / open sourceMIT
Sentinel-VC logo

Sentinel-VC

Node.js · Telegram · Open source

Event-driven moderation for Telegram communities, with temporary restrictions, permission-aware recovery, and optional voice-call controls.

Capability-awareRecoverable restrictionsPrivate admin panel
ObserveEvaluateRecover

Experimental software. Built around Telegram’s available capabilities.

Research preprintNo. 01 / v1

Capability-aware moderation.
A closer look.

Sentinel-VC: Capability-Aware Event-Driven Moderation for Telegram Communities and Voice-Call State

My independent research on moderation, recovery, and the limits of the interfaces we build on. Includes a synthetic evaluation; not yet peer reviewed.

Published October 5, 2026DOI · 10.5281/zenodo.23165817

03 / The bigger picture

Ideas with a home.

One group. Different possibilities.

Bitiac Group / ventures4 items
B

Bitiac GroupLive

The parent company. A home for ambitious ideas.

∞

EternalPaceUpcoming

Software, SaaS & AI solutions.

Sister concern of Bitiac Group
7

7two3Upcoming

Cosmetics & lifestyle.

Sister concern of Bitiac Group
8

8two3Upcoming

Clothing & considered everyday style.

Sister concern of Bitiac Group

04 / My toolkit

Where craft meets code.

Development

Clean foundations. Room to grow.

PHPReactTypeScriptCustom applications
How I approach it

From a focused landing page to a custom application, I build responsive experiences with clear structure and maintainable code.

E-commerce

Good stores make buying feel easy.

WordPressWooCommerceCustom themesPerformance
How I approach it

Thoughtful storefronts, custom WordPress development and WooCommerce integrations—with care for the full buying journey.

Design

Small details. A better experience.

UI / UXFigmaResponsive designInteraction
How I approach it

A clear hierarchy, comfortable typography and interactions that feel natural. Design decisions made around the people using them.

05 / Notes along the way

A few things on my mind.

Open the journal

Something worth building?

Let's make it happen.

A website, a product, or an idea that won't leave you alone.
I'd love to hear about it.

hello@cmjhb.com
About JubayerPortfolioHeyNivra & client workWorkSentinel-VC & research paperOpen sourceBitiac Group & sister concernsVenturesJournalPageContact & social linksContact Sentinel-VC is out in the open.Building in publicLess noise. More glass.Building & businessGood architecture starts with fewer moving parts.EngineeringGood moderation leaves a way back.Engineering notesA little motion. A little more room.Design notesBefore you add another WooCommerce plugin, measure.E-commerceWhat 100+ client projects taught me about clarity.Building & businessUsing AI in a workflow without handing it the steering wheel.AI & productsDoes your WooCommerce store actually need to go headless?E-commerceA hidden admin URL is not a security boundary.EngineeringSmall teams need clear decisions, not more meetings.Building & businessA fast website is a feeling you have to measure.EngineeringThe first rule of multi-tenant software: know whose data it is.EngineeringRetail forecasting needs clean questions before clever models.AI & products