MOBILE & FRONTEND ENGINEER

Shipped 4 Fintech Apps from Scratch. React Native & Next.js Specialist.

I specialize in React Native and Next.js high-performance architecture. Currently managing the mobile and web payment ecosystem for Figensoft (Tiko)

Direct Contact
contact@yusefturin.com
Github / Open Source

Stack

Mobile CoreReact Native

0.79+ New Architecture

Web CoreNext.js

Server Components & SSG

LanguageTypeScript

Strict Type Safety

PerformanceNative Modules

C++ / JSI Bindings

State ManagementTanStack Query

Async Server State

UI/UXReanimated

60fps Animations

IntelligencePython & AI

PyTorch & OpenCV

BackendNode.js

Scalable Serverless Infra

Case Studies

Project .01
Tiko Financial Ecosystem
Lead Mobile Architect (Solo)

The Technical Challenge

Architecting a fragmented financial ecosystem across two distinct regions with different banking regulations and payment infrastructures. The goal was to launch four distinct native applications (Consumer Wallet & Merchant POS for both regions) that shared rigorous security standards despite having separate codebases and unique UI flows.

Architecture & Strategy

  • Regional Polymorphism: Designed distinct architectural patterns for KKTC and AZ to handle different payment gateways and regulatory compliance (KYC) while maintaining a consistent "Tiko" brand experience.
  • Unified Security Core: Implemented a shared Runtime Integrity Layer across all four apps. This engine detects Root access, Jailbreaks, and Debuggers, instantly terminating sessions (exitApp) on compromised devices to protect financial data.
  • KYC & Identity: Bank-grade identity verification integrated via Veriff SDK and custom native camera modules.

Key Engineering Wins

  • Security: Achieved a 100% block rate on unsafe environments across all platforms using the shared integrity engine.
  • Performance: Delivered 60fps native performance for both consumer (Wallet) and merchant (POS) dashboards, replacing legacy hybrid solutions.
  • Scale: Successfully deployed and maintained 4 separate production apps serving 15,000+ active users and merchants daily.

Tech Stack

React Native

Custom Native Modules (JSI)

TanStack Query

Zustand

Reanimated 3

Project .02
Tiko Virtual POS
Lead Mobile Architect (Solo)

The Technical Challenge

Merchants required a high-performance, data-heavy dashboard to visualize cash flow, export tax reports, and process manual payments. The goal was zero bloat: eliminating heavy UI frameworks in favor of a bespoke, high-performance design system.

Architecture & Strategy

  • Bespoke Design System: Architected a custom Utility-First SASS Engine (similar to Tailwind but lightweight) using CSS Variables and Tokenization. This eliminated unused CSS execution and ensured 100% brand consistency.
  • Bleeding Edge Performance: leveraged Next.js 16 and React 19 to utilize the latest Server Components and concurrent rendering features.
  • Client-Side Heavy Lifting: Offloaded complex reporting logic (Excel generation, PDF printing) to the client using specialized libraries (xlsx, react-to-print), reducing server computation costs.

Key Engineering Wins

  • Performance: Achieved near-perfect Lighthouse scores by replacing external UI libraries with a custom 12kb CSS architecture.
  • Data Visualization: Built real-time financial charting (Recharts) to help merchants track daily revenue trends.
  • Efficiency: Automated financial reporting workflows, allowing users to export bulk transaction data without API latency.

Tech Stack

Next.js 16

React 19

TanStack Query

Zustand

Custom SASS Architecture

Other Notable Work

Tiko POS Web Project Image
Tiko POS Web
Retail Dashboard

WebSocket-integrated point of sale with offline-first transaction queuing.

Figensoft Enterprise Project Image
Figensoft Enterprise
Corporate Portal

High-performance SSG (Static Site Generation) with dynamic SEO injection.

react-native-input-helper Project Image
react-native-input-helper
Unified Validation Engine

A lightweight (3kB) all-in-one validator for Phones, Credit Cards and IBANs.

Apart Studio AI Project Image
Apart Studio AI
Cloud Image Processing

AI-powered editor leveraging CV for colorization, and background removal.

Direct Contact
contact@yusefturin.com
Available for Full-time

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