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Eren VarliEV

Eren Varli

🏆 Mobile Developer ✦ React Native ✦ TypeScript

€350/day
Lyon, FR
3-7 years
React Native
Android
iOS
React Native Developer
Mobile Developer

Average response time: 2 hours

Freelancer profile translated to English.
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About Eren

🚀 React Native Developer & Mobile Developer (iOS / Android)

Are you looking for a mobile developer capable of creating, taking over, or optimizing a high-performing and reliable mobile application?

I support startups, SMEs, and product teams in the **creation of mobile applications (iOS / Android)**, particularly with **React Native**, to quickly deliver robust, scalable, and maintainable products.


📱 What I can do for you
  • Development ofReact Nativemobile applications (iOS & Android)
  • Creation of mobile MVPs (quick product launch)
  • Redesign or improvement of existing applications
  • Performance and stability optimization
  • API integration, data management, and authentication
  • Bug fixing, maintenance, and product evolution

đź’ˇ My approach

I amresults and efficiencyoriented:
  • clean, maintainable, and documented code
  • quick understanding of product challenges
  • adaptation to your stack and constraints
  • fast delivery without compromising quality

Whether it's for:
  • a short mission
  • team reinforcement
  • or a project from scratch

👉 I integrate quickly and am autonomous.


🛠️ Types of projects
  • Mobile applications (iOS / Android)
  • Cross-platform React Native applications
  • Dashboards & React web applications (SaaS, back-office)
  • API & third-party service integration
  • Maintenance, refactoring & optimization
  • Production deployment & technical support

⚡ Why work with me?
  • Mobile & React Native specialization
  • Pragmatic, product-oriented approach
  • Ability to quickly deliver a functional MVP
  • Reliability and clear communication

📍 Available quickly — remote or on-site intervention according to your needs.
Digital and IT Services
Consulting and Audits
Software Publishing
Digital Business Models
IoT (Internet of Things)

  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km)

Experience

  • Volvo Group FR
    Software Engineer - Apprenticeship
    AUTOMOBILE
    September 2025 - Today (11 months)
    Lyon, France

    Context

    Intervention within the Volvo group, in an agile development environment, on a fleet of Java applications requiring security compliance and major infrastructure evolutions.

    Mission

    As a Java developer, my mission focused on strengthening application security, automating the test chain (QA), and managing application server migrations.

    Tasks

    Application Security:Identification and correction of vulnerabilities using specialized tools; takeover, enrichment, and deployment of a Proof of Concept (POC) dedicated to security with evangelization among teams.
    Automation & CI/CD:Implementation of automated tests following the "Golden Path" (internal standards): tool selection, comparative analysis, creation of test templates, and continuous integration in pipelines.
    Technical Migrations:Migration of the application ecosystem from WebSphere to JBoss 7, then to JBoss 8.
    Agile Methodology:Active participation in Scrum ceremonies (Dailies, Sprint Plannings, Reviews, and Retrospectives).

    Technologies

    Java
    Application Servers: WebSphere, JBoss 7 & 8
    Security: Vulnerability scanning tools, CI/CD Pipelines
    Methodology: Agile/Scrum
    CI/CD Agile Methodology Java DevOps Microsoft Azure
  • Keysper
    Computer Engineer
    REAL ESTATE
    January 2025 - August 2025 (7 months)
    Bordeaux, France

    Context

    Keysper is a Bordeaux-based startup specializing in real estate support for students and young professionals. Facing the technical limitations of their first PWA (lack of performance and security flaws), the company decided to completely overhaul its service as a native mobile application.

    Mission

    As a Fullstack developer, I was responsible for creating the new mobile application and securing/evolving the existing API. The challenge was to transform the user experience through an intuitive search interface inspired by dating app mechanics ("Swipe").

    Tasks

    Mobile Development (UX/UI):Implementation of a high-performance "Swipe" system with fluid animations for browsing properties.

    Search Redesign:Optimization of multi-criteria filters (geography, area, number of rooms, price) for more precise searches.

    Multi-Profile Management:Development of features to create multiple profiles and associate them with digital safe deposit boxes for administrative documents.

    Onboarding Optimization:Design of a sophisticated and personalized registration process, tailored to the user's profile for a bespoke experience from the moment the app is opened.

    Application Module:Implementation of a file submission system with eligibility condition management.

    API Security:Migration to TypeScript, implementation of secure authentication (JWT) and password hashing (Bcrypt).

    Backend Evolution:Addition of new routes and features to the existing Express.js API.

    Technologies

    Frontend: React Native, TypeScript
    Backend: Node.js (Express.js)
    Security: JWT (JSON Web Token), Bcrypt
    Tools: Git

    React Native TypeScript Fullstack Node.js API
  • GROUPE KDE
    Full Stack Developer
    TRANSPORTATION
    April 2024 - September 2024 (5 months)
    Pau, France

    Context

    KDE Groupe is a transport company located in the southwest of France. The company needed to digitize its processes to effectively manage its fleet of 120 vehicles and its 130 employees (drivers and administrative staff).

    Mission

    I was tasked with designing and developing an internal business application from scratch to centralize route tracking, vehicle maintenance management, and human resources administration.

    Tasks

    Driver Module Development
    Interface for entering daily routes, identifying clients (DHL, FedEx, GLS...), recording cleanliness checks, and automated calculation of success rates and daily ratings.

    Implementation of the "StatsCar" Module (Maintenance)
    System for digitizing condition reports (like WeProov) with monthly photo taking and secure archiving for claims and insurance management.

    Creation of the Administrator Back-Office (HR & Management)
    Management of rights and CRUD (Create, Read, Update, Delete) for users and vehicles.

    Dashboards for tracking routes and performance.
    Mileage comparison algorithm for anomaly detection.
    Application security:
    Implementation of filters, use of prepared statements (protection against SQL injections), fine-grained access rights management, and database triggers.

    Project Management
    Application of the Agile methodology with regular meetings for tracking and validation of milestones.

    Technologies

    PHP (MVC Architecture)

    SQL (Triggers, rights management)
    JavaScript, HTML, CSS
    Agile Project Management
    SQL TypeScript HTML5 CSS3 PHP
Check out Eren's experience

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Education

  • Master's degree, Information Technology
    EPITECH
    EPITECH - European Institute of Technology

Skill set

JavaScript
TypeScript
React.js
Expo
Front-End Development
Back-End Development
Full-stack Development
Full-stack Developer
FullStack Development
React Native Development
Mobile Application Development
Mobile Application
Android Development
Mobile Application Deployment

Categories