Flutter Engineer.

I build production-grade Flutter apps — from first line of code to App Store launch, and everything that keeps them running after.

“Currently building Eque Studio — a Mobile-first design & development studio.”

About

Hi, I'm Bishal Rumba.

I'm a Flutter engineer based in Kathmandu, building production-grade mobile apps across quick commerce, booking, and e-commerce. I care about clean architecture and code that's still easy to work with months later.

Currently building the server-driven home screen for Karayo at Railar Solutions.

Open to freelance & full-time opportunities

Years shipping Flutter

Production apps shipped

Focus

Flutter & DartClean ArchitectureServer-driven UIBLoC / Riverpod / GetXCI/CD

Education

BSc (Hons) Computer Science
Sunway College Kathmandu (IUKL), 2021–2024

Experience

Where I've worked.

Railar Solutions Pvt. Ltd.Oct 2025 – Present

Senior Software EngineerCurrent

Building Karayo, a quick commerce platform focused on fast ordering, real-time inventory, and scalable mobile experiences.

Architected and implemented a Server-Driven UI (SDUI) framework for Karayo, enabling dynamic, config-driven layouts and content updates without requiring app releases.

Refactored the Flutter codebase using Clean Architecture + GetX, improving maintainability, scalability, and development efficiency.

Improved production stability and monitoring, achieving 96% crash-free sessions post-release and delivering a more reliable user experience.

FlutterSDUIGetXClean ArchitectureCI/CDFirebaseCodemagic

Speedrent Technology Sdn BhdJan 2025 - Jul 2025

Lead Flutter Engineer

A property rental platform simplifying the renting experience for landlords and tenants across Malaysia.

Led the Flutter codebase, refactoring architecture and core components for long-term maintainability and performance.

Established CI/CD pipelines with Codemagic to streamline automated builds, testing, and production releases.

Guided junior developers through code reviews, architecture decisions, and day-to-day technical development.

Optimized rendering, caching, and memory usage to improve application responsiveness and overall user experience.

Collaborated across product, design, backend, and engineering teams to deliver high-impact features.

FlutterDartCI/CDCodemagicFirebaseREST APIs

Dome Infosys Pvt. Ltd.May 2024 – Jan 2025

Flutter Developer

Developed and maintained production mobile applications across multiple business domains.

Built scalable Flutter applications with structured architecture and reusable, maintainable components.

Integrated REST APIs, payment gateways, and third-party services into production interfaces.

Improved performance through rendering and memory optimization, maintaining quality via code review and unit testing.

Set up and maintained CI/CD pipelines to streamline releases.

FlutterDartBLoCREST APIsFirebaseCI/CDPayment GatewaysFigma

Ticket Sewa Pvt LtdJun 2023 – Jan 2024

Junior Software Developer

A ticketing platform supporting booking experiences across movies, concerts, buses, and travel.

Led the mobile app development team in delivering booking experiences across movies, concerts, and bus transportation.

Built interactive seat mapping systems and QR code-based ticketing workflows.

Integrated payment gateways and third-party ticketing and flight APIs.

Designed UI prototypes and translated product requirements into production-ready Flutter interfaces.

Collaborated across teams to deliver and maintain booking workflows and customer-facing features.

FlutterDartREST APIsPayment GatewaysQR CodesUI/UX

Search Technology Pvt. Ltd.Jun 2022 – May 2023

Flutter Developer Intern → Junior Flutter Developer

Started as a Flutter Developer Intern and progressed into a Junior Flutter Developer role, working on production e-commerce and accounting applications.

Built and maintained features for e-commerce and accounting apps (Sajha Prakashan, Khata).

Integrated .NET APIs with JWT authentication and real-time WebSocket communication.

Implemented local persistence (Hive) and state management (Riverpod); shipped PDF viewing and document workflows.

Progressed from intern to Junior Developer, taking ownership of production features and Play Store releases.

FlutterDartRiverpodHiveWebSocketsJWT.NET APIsFigma

Work

Things I've built and shipped.

App

Karayo

Railar Solutions

A quick commerce grocery delivery app providing fast, seamless shopping with product browsing, secure ordering, and reliable last-mile delivery.

FlutterGetXSDUIFirebase+1

App

Speedhome

Speedrent Sdn Bhd

Malaysia's leading zero-deposit rental platform, connecting landlords and tenants with insurance-backed rental protection. Remote-led the transition from an outsourced Flutter codebase to an in-house engineering setup.

FlutterNavigator 2.0Deep LinkingPush Notifications+2

App

Jobscater

Dome Infosys

A job portal connecting seekers and employers through job discovery, application management, candidate profiles, and an efficient hiring workflow.

FlutterBLoCREST APIsFirebase

App

Food Catering App

Final Year Project

A full-stack Flutter app for ordering lunch boxes and catering services, featuring customer ordering, vendor management, and a complete delivery workflow.

FlutterDartFirebaseREST APIs

Package

wasm_check

Pre-flight WASM compatibility audit for Dart and Flutter projects. Checks your entire dependency tree before you build — identifying which packages will block flutter build web --wasm.

DartFlutterWASMpub.dev

Utility

JWT Dio Interceptor

A reusable Dio interceptor that automatically handles JWT access token attachment, token refresh, request retry, and authenticated API communication for Flutter apps.

FlutterDartDioJWT+1

Contact

Tell me what you're building.

Whether it's a Flutter app, a freelance opportunity, or simply an idea you'd like to discuss — I'd be happy to hear from you.

Or reach me directly

thatflutterdev@gmail.comCopied!