Available for app and website projects

Android · Real-time systems · Web

I turn product ideas into smooth, practical digital experiences.

I build polished native Android applications, modern Android UI, real-time voice and video products, quiz and mini-game apps, and responsive websites. RChat is my featured project, but my work is not limited to one platform or one type of system.

Explore my work Message on WhatsApp
Kotlin WebRTC LiveKit Firebase Socket.IO Android UI Design HTML / CSS / JS
RChat Android app interface overview
Featured build: RChat Social voice rooms, gifts, rankings, profiles and operational tools
Native AndroidKotlin and XML development
Android UI designModern, responsive and polished interfaces
Real-time communicationVoice, video and live rooms
Web developmentFast responsive websites

About me

A flexible developer focused on useful products—not buzzwords.

Md Parvez, Android and LiveKit developer

I work across Android, real-time communication and lightweight web development. I enjoy taking a feature from a rough idea to a working, testable product with clear behaviour and a polished user experience.

My strongest work includes Kotlin Android development, LiveKit and WebRTC integration, Firebase and Firestore, Socket.IO, API integration, debugging, performance improvements and practical deployment.

I can contribute to a full application, a specific feature, an existing codebase that needs fixing, or a focused website that presents a business professionally.

What I can build

More than one kind of product.

Focused development services for founders, small businesses and growing digital products.

A

Android applications & UI

Native Kotlin and XML apps with professional, responsive and visually polished interfaces.

  • Custom Android UI implementation
  • Figma or screenshot-to-XML design
  • Feature development and optimization
R

Real-time communication

Voice rooms, calling, live interaction and self-hosted communication infrastructure.

  • WebRTC and LiveKit
  • Socket.IO events
  • Audio and video workflows
Q

Quiz and mini-game apps

Small, engaging applications with scoring, levels, question flows and interactive states.

  • Quiz experiences
  • Game-like interactions
  • Simple reward systems
W

Responsive websites

Professional static websites and landing pages that work smoothly on mobile and desktop.

  • Portfolio websites
  • Business landing pages
  • Fast static deployment
F

Firebase and backend integration

Authentication, Firestore, Realtime Database, notifications and REST API connectivity.

  • Data synchronization
  • Secure integration patterns
  • Real-time features
D

Debugging and improvement

Root-cause analysis and targeted fixes for unstable, slow or incomplete applications.

  • Error investigation
  • Performance tuning
  • Release preparation

Android UI design

Interfaces that look professional and feel smooth.

I can design and implement modern Android screens with strong hierarchy, consistent spacing, readable typography, responsive layouts and polished interaction states. I can work from a concept, screenshot, reference design or Figma file and turn it into native Kotlin/XML UI.

  • Custom XML layouts and reusable components
  • Dark, premium and branded interface styles
  • Responsive screens for different Android devices
  • Loading, empty, error and interactive states
  • UI refinement for existing Android applications
Android, LiveKit and WebRTC development service presentation

Selected work

Products I have built and products I am building.

Featured case study

RChat — social voice chat Android application

I independently developed RChat as a native Android social voice platform and handled its real-time communication, client-side features, backend integrations and deployment workflow.

Core experience

  • Multi-user live voice rooms
  • Speaker seats and microphone controls
  • Real-time chat and notifications
  • Profiles, moments and social features

Product systems

  • Virtual gifts and coin economy
  • VIP, ranking and reward flows
  • Roles, moderation and admin tools
  • VPS and self-hosted LiveKit setup
Visit RChat website →
RChat live voice room interface
In development

Meyvo

A modern communication application focused on one-to-one audio and video calling, polished mobile UI, secure account flows and a broader roadmap for social and communication features.

CallingCommunicationMobile
Practice builds

Quiz and small game apps

Smaller applications created to practise interaction design, scoring, question flows, state management and user feedback.

QuizGame logicUI flows
Web capability

Small responsive websites

Lightweight websites and landing pages built for clear presentation, mobile responsiveness, speed and easy deployment.

HTMLCSSJavaScript

Working approach

Clear communication, careful implementation and practical delivery.

01

Understand first

I clarify the goal, expected behaviour and technical limits before building.

02

Build in manageable steps

I divide the work into clear parts so progress stays visible and testable.

03

Test the real flow

I check user interactions, errors, device behaviour and network-related edge cases.

04

Deliver clearly

I provide the finished work with concise notes and the next practical steps.

Let’s discuss your project

Have an app, feature or website idea?

Send a short message with what you want to build or fix. Choose the platform that is easiest for you.

WA
WhatsAppOpen a direct chat
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Gmailrchat308@gmail.com
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RChat websiteView the live product site
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