Skip to content
BackMar 30
Frans B.

Frans B.

Mobile App Development | Flutter | Firebase | Chat GPT Integration

I am a software developer with over three years of professional experience, including a six-month internship at a tech company. I specialize in building scalable mobile and web applications, with a strong focus on Flutter, Next.js, and Express.js, and hands-on experience in FinTech application development. I have worked on real-world payment systems involving invoice generation, payment links, product links, transaction handling, refunds, and KYC verification, as well as integrating third-party payment gateways for secure digital transactions. What I Offer: ✅ Flutter Development – Building high-quality, cross-platform mobile apps with clean architecture and GetX for efficient state management. ✅ Web Development (Next.js) – Developing modern, responsive web applications, including customer-facing payment pages and dashboards. ✅ Backend Development (Express.js) – Creating RESTful APIs, handling authentication, transactions, and third-party integrations. ✅ FinTech Experience – Experienced in payment flows, KYC onboarding, transaction management, and secure financial data handling. ✅ Firebase Integration – Authentication, Firestore, Cloud Functions, and Remote Config. ✅ API Integration – Seamless integration with payment gateways and external services. ✅ Team Collaboration – Comfortable working with UI/UX designers, QA engineers, and backend teams. ✅ Version Control – Proficient in Git for collaborative and structured development. I am passionate about delivering clean, maintainable code while continuously improving my skills. Let’s collaborate and bring your ideas to life! 🚀

🇮🇩Medan, Indonesia$10/hr100% JSSSince Jan 2022

Earnings and projects

MRR (estimate)as of Mar 30
≈$0

An estimate from an earlier read

World#357,571 / 412k
🇮🇩Country#4,775 / 5,726
Revenue, last 30 days
—
Total earnings
$1.5k

Billed in all: $1.6k

World#357,571 / 412k
🇮🇩Country#4,775 / 5,726
Per project
$762

$0 in the last 6 months

Projects, last 6 months
2
50% fixed50% hourly
World#88,922 / 412k
🇮🇩Country#1,628 / 5,726
Projects in all
2
50% fixed50% hourly
World#328,890 / 412k
🇮🇩Country#4,761 / 5,726

Earnings, last 30 days

–Billed in all, before Upwork's fee

One reading so far: earnings show from the second.

Skills