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Sabrina YafaSY

Sabrina Yafa

Full-Stack & Mobile Dev | SaaS & AI Solutions

€130/day
Béjaïa, DZ
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sabrina

Looking for a reliable developer to build or scale your web or mobile application, without having to explain everything twice?

I assist startups and tech SMEs with full-stack and mobile projects: creating products from scratch, adding features to an existing base, redesigning interfaces, or integrating a robust backend. Web with React and Next.js, iOS/Android mobile with React Native or Flutter, backend with NestJS or Laravel.

What sets me apart: I am autonomous, I deliver clean and tested code, and I integrate quickly into existing projects without a ramp-up period. I have worked on production SaaS, cross-platform mobile applications, and am currently working on an AI platform for neurological diagnosis assistance.

Full remote. Available for short-term assignments as well as long-term collaborations.
  • Arabic

    Native or bilingual

  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • INNOVIA ALGÉRIE
    Frontend & Mobile Developer
    E-COMMERCE
    November 2025 - March 2026 (4 months)
    Béjaïa, Algeria
    Freelance developer on **Nchriha**, an Algerian e-commerce marketplace, with contributions to both the mobile and web surfaces of the platform.
    • Integrated into an existingReact Nativecodebase, fixing a significant number of production bugs, with a particular focus on iOS-specific issues affecting stability and user experience.
    • Added new features to the iOS and Android mobile application, ensuring functional consistency between the two platforms.
    • Designed and developed theNext.jsweb version of the platform entirely independently, establishing the architecture and core functionalities on my own.
    • Returned to the mobile codebase after establishing the web foundations, to support the application towards its production release.
    • The application was successfully published on the Google Play Store and the Apple App Store.
    React Native Next.js Mobile App Deployment Expo External API Integration
  • Freelance
    Freelance Full-Stack and Mobile Developer
    DIGITAL AND IT
    January 2025 - Today (1 year and 7 months)
    Algeria
    • **E-commerce Startup**: Integrated into an existing React Native and Next.js codebase, contributing new features to the iOS/Android application and web interface from the first week, with no dedicated adaptation period.
    • **Mobile Cross-Platform**: Extended and stabilized React Native features on iOS and Android, resolving platform-specific discrepancies and aligning behavior with the web version.
    • **Web Next.js**: Delivered new user journeys and views using TanStack Query for server state management, reducing redundant network calls and ensuring continuous UI synchronization with backend data.
    • **Production Bug Management**: Diagnosed and resolved live incidents—UI regressions, API desynchronization, native crashes, and rendering bottlenecks—tracing each issue to its root cause and delivering targeted fixes without escalation.
    • **Client Projects**: Delivered end-to-end features for multiple clients on React, Next.js, and NestJS, designed PostgreSQL schemas, and created type-safe APIs with Zod and Drizzle ORM.
    Next.js Database Management NestJs React Native REST API
  • Tech Instinct
    Full-Stack Developer - Intern
    DIGITAL AND IT
    October 2024 - June 2025 (8 months)
    Béjaïa, Algeria
    **FarmConnect SaaS**: Sole developer on all three layers of a livestock management platform—NestJS API, React web dashboard, and Flutter mobile application—leading from initial design to a functional pilot, within an Agile workflow tracked via Asana.
    • **Backend**: Designed and implemented a REST API with NestJS and Prisma covering authentication, role-based access management, farm and herd management, and multi-module health record tracking.
    • **Frontend**: Developed a responsive, component-oriented dashboard using Shadcn/ui and Tailwind CSS, with consistent UX patterns across all modules to reduce friction for non-technical farm operators.
    • **Mobile**: Replaced a fully manual animal identification process with a Flutter application reading RFID chip data via an HID scanner, enabling field teams to register and track animals on-site without manual entry.
    NestJs Mobile App Deployment Next.js Flutter Microservices

Recommendations

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Yanis Kfd and 1 other person have recommended Sabrina

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Education

  • Master's Degree in Software Engineering
    University of Bejaia
    2025
    Master's Degree in Software Engineering
  • Bachelor's Degree
    University of Bejaia
    2023
    Bachelor's Degree

Skill set

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