Testy codemaste

@testy_code

Full Stack Developer

Nigeria
Inglese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I'm a Full Stack Developer who builds modern, scalable, and user-friendly web applications, mobile apps, and custom software. I specialize in both frontend and backend development, creating fast, secure, and responsive solutions tailored to business needs. Whether you're launching a startup, upgrading an existing platform, or building a custom system from scratch, I deliver clean code, intuitive user experiences, and reliable performance that help your business grow.... Continua a leggere

Competenze

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testy_code
Testy codemaste
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Tempo di risposta medio: 1 ora

Consulta i miei servizi

Sviluppo multipiattaforma
I will develop social chat app, messaging app, community app, social network app
A partire da650 USD / progettoMaggiori dettagli
Sviluppo multipiattaforma
I will engineer secure fintech app, digital banking and payment app for africa, europe
A partire da1500 USD / progettoMaggiori dettagli

Portfolio

Esperienza lavorativa

Fintech

RAFA App Development

Fintech • Freelance

May 2026 - Present • 2 mos

Senior Full-Stack Software Engineer (FinTech) Confidential Client (NDA Protected) | Contract Developed a production-ready SoftPOS fintech platform that enables merchants to accept NFC tap-to-pay, card, bank transfer, USSD, and QR payments directly on Android devices without dedicated POS hardware. Built the Android application using Kotlin and Jetpack Compose, with a NestJS and PostgreSQL backend powering wallet management, payment processing, settlements, and enterprise operations. Designed and implemented an HQ dashboard for managing field agents, configuring collection splits, monitoring transactions, and automating merchant settlements. Strengthened platform security with biometric authentication, device attestation, multi-channel OTP verification, and double-entry ledger accounting. Technologies: Kotlin, Jetpack Compose, NestJS, PostgreSQL, Android SDK, REST APIs, NFC, QR Payments, USSD, Payment Gateway Integration. Achievement: Delivered a scalable fintech platform that removes the need for expensive POS hardware, streamlines agent management, and securely processes live payments through licensed financial infrastructure.