Flutter Mobile Developer

I Build Real-World Mobile Products

I am Frans Budi Kashira, a Flutter-focused mobile developer with 4+ years of programming experience, freelance product work, and startup CTO background.

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4+ yrs

Programming Experience

CPay

Flagship Fintech Build

3.95

Bachelor’s GPA

About

Mobile developer with product, fintech, and startup context.

My strongest work combines Flutter implementation with product judgment, backend awareness, and business workflow understanding.

Mobile Delivery

Flutter products built for real usage, not just demos.

I focus on production-minded mobile delivery with clear UX, structured implementation, and practical feature execution across real product constraints.

End-to-End Execution

Freelance scope that moves across mobile, web, and backend.

My client work often spans Flutter apps, supporting web flows, Firebase-backed features, and integration-heavy product delivery rather than isolated screens.

Product Collaboration

Comfortable working with design, backend, and QA teams.

Internship and delivery work taught me how to ship smoothly inside cross-functional teams where alignment and consistency matter as much as code quality.

Startup Perspective

Technical execution shaped by validation and product judgment.

My CTO and founder background adds a stronger sense of business reality, prioritization, and validation to how I build and evaluate product decisions.

Featured Projects

Case studies built around product value

CPay leads the portfolio, followed by education, startup, attendance, AI, and workflow products.

All Projects

Fintech Mobile & Web Platformflagship

CPay

Merchant fintech platform with Flutter mobile app, payment web flows, backend services, admin operations, and analytics.

FlutterDartNext.jsExpress.jsFirebase

View Case Study

Education & Sports Mobile Appstrong

Fit Lit

Interactive Flutter sports app with guided games, school assessments, role-based access, and offline-first sync.

FlutterFirebaseCloud FunctionsRemote ConfigOffline-first

View Case Study

Construction Services Marketplacestrong

BangunAja

Construction service platform connecting users with skilled professionals based on proximity, reviews, portfolios, and expertise.

Startup CTOProduct StrategyMobile ProductValidationMarketplace

View Case Study

Employee Attendance Appstrong

Presence

Attendance management app with authentication, role-based authorization, profile management, password recovery, and location tracking.

FlutterFirebaseAuthenticationAuthorizationLocation

View Case Study

Core Stack

Capability-first stack for shipping real-world products.

The section highlights the areas I rely on most when delivering Flutter products, supporting product flows, payment logic, and day-to-day engineering workflow.

Mobile Development

Shipping production-ready Flutter experiences across real product flows.

Primary

Flutter

Dart

Native Android

Kotlin

Jetpack Compose

Xcode

Android Studio

GetX

State Management

Backend & Web

Supporting product flows, APIs, dashboards, and integration-heavy delivery.

Next.js

Express.js

Laravel

REST API

Vue.js

Payments & Fintech

Implementing transaction logic, payment links, refund flows, and reporting.

Tap Payments

Payment Links

Refunds

Fee Logic

Analytics

Databases & Services

Delivering across managed app services, persistence, and cloud-backed features.

Firebase

Supabase

Cloud Firestore

PostgreSQL

MongoDB

Tools & Workflow

Using practical engineering tools and AI assistance to move delivery faster.

Git

Figma

Postman

Codex

GitHub Copilot

ChatGPT

Experience

Credibility from freelance, internship, and startup execution.

Jan 2025 - Apr 2026

Freelance Mobile Developer

CPay, Fit Lit, and client product work

Built Flutter mobile apps, Next.js payment pages, Firebase-backed features, and backend services for real client products.

Sep 2024 - Dec 2024

Mobile Developer Intern

PT Bejana Investidata Globalindo

Delivered Flutter features for Risehand and Dzikra while collaborating with UI/UX, backend, and QA teams.

Jan 2023 - Feb 2024

CTO & Founder

BangunAja x KuliKu

Led a construction-service startup, recruited 16+ partners, validated product demand, joined incubators, and secured early funding.

Learning & Education

Compact credibility from education and focused upskilling.

Google, GoTo, Traveloka

Bangkit Academy 2024

Mobile Development cohort selected from 55,000 participants.

Indonesia University of Education

Digital Business Degree

Graduated with GPA 3.95/4.00 across 147 credits.

Dicoding

Android & Kotlin Track

Selected certifications across Kotlin, Android fundamentals, and intermediate Android.

Available for product work

Need a Flutter developer who can think beyond screens?

I can help with mobile-first product delivery, fintech workflows, Firebase-backed apps, and polished case-study-ready product execution.

Discuss a Project Chat on WhatsApp Download CV

Best for freelance inquiries, product collaboration, and project discussions.