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Kenz NarainenKN

Kenz Narainen

Développeur Mobile IOS/Android React Native

€530/day
Lausanne, CH
3-7 years

Average response time: 2 hours

About Kenz

Portfolio: kenzenbien.fr
My obsession is building products that people open because they want to, not because they have to.
To me, that means going far beyond writing code. I think about the entire user experience—from the first impression to the smallest details. The interface, micro-interactions, animations, transitions, and that moment when a user understands, within three seconds, exactly what they can do. That's where I thrive.

The plan technique, used in React Native for iOS and Android, has a cross-platform approach that does not sacrifice performance or quality of finish. I have already published additional applications on the App Store and the Play Store, which I have appraised in the following way: the rigor of the process of validation, the keys to the performance of the old devices, the importance of an architecture that is the route to the grand product.
This means that there is a difference in the difference, this is based on the integration of the IA. If you have applications that have artificial intelligence, it is not a gadget marketing collé en surface, but it is also a source of intelligence that transforms the usage: contextual assistants, adaptive generation, functionalities that anticipate the needs. Take a look at the API of the point models (Claude, GPT, Gemini) in long periods of time, latency and experience.
This is what I propose to my clients: a vision product, which is also a pair of mains. If you want to have a letter, the retravaille, the challenge to the design and the book will be an app that honors the idea - on the platform.
Stack : React Native, TypeScript, Expo, Supabase, Firebase, integration LLM (Claude, OpenAI), CI/CD mobile, App Store & Play Store deployment.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Basic

  • Japanese

    Basic

Remote only
Primarily works remotely

Experience

  • Freelance Mobile Developer , Freelance
    Software Engineer
    April 2025 - Today (1 year and 3 months)
    Lausanne, Switzerland
    Developed and deployed cross-platform mobile applications using React Native, delivering production ready apps on the App Store Integrated AI tools (e.g., OpenAi, Gemini) to enhance application features and automate user-centric workflows Analyzed user behavior and implemented tracking solutions to optimize user experience and drive product improvements Built and maintained scalable backend services with Node.js, including API design and database integration
    Application Mobile intelligence artificielle User Interface Design User Experience Design
  • Amplify SA
    Fullstack/Frontend Developer
    November 2022 - April 2025 (2 years and 5 months)
    Lausanne, Switzerland
    Developed a user-friendly wallet on the web platform using React.js, Python (Django), and GraphQL, ensuring smooth functionality and a seamless user experience. Designed and implemented a secure AWS architecture for a web application, including Route 53 DNS configuration to ensure high availability and optimized performance. Spearheaded of the UI/UX design and development of both front-end and back-end features, designed and created mockups in Figma, integrated them into functional UIs with React.js. Collaborated closely with designers and product managers to align user experience with business requirements. Integrated LLM such as OpenAI GPT for generating personalized marketing text, and diffusion models (Flux, DALL·E) for creating contextual images, enabling highly customized client campaigns. Built dynamic forms and developed internal management and ticketing tools to improve team workflow and organization.
  • Sopra Banking Software
    Frontend Developer
    BANKING AND INSURANCE
    February 2022 - August 2022 (6 months)
    Paris, France
    Designed and built mobile applications for decentralized identities using Ethereum Blockchain and React Native, ensuring secure and transparent user experiences.
    Developed and deployed a Flask API with MySQL, integrating Machine Learning algorithms to provide intelligent, data-driven banking product recommendations tailored to client needs. Strengthened trust and privacy for users by leveraging blockchain technology in mobile apps. Designed mockups(Figma) and launched a bank advisor app using React and Next.js, streamlining client management and offering personalized, data-backed recommendations to improve customer retention.
    SQL React Native Next.js Figma React.js

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Education

  • Master's Degree Computer Science
    EPITA
    2022
    Master's Degree Computer Science
  • Bachelor Computer Science
    CSULA
    2019
    Bachelor Computer Science

Skill set

Categories