You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Ryan G.RG

Ryan G.

Fullstack Developer iOS Android Web React Unreal

€600/day
11 projects
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Ryan

Need to transform a complex idea into a finished, high-performing, and scalable product? A mobile application, a web app, a website?

I offer my software engineering expertise with 12 years of experience to design and deliver your custom solutions from A to Z. Whether for the web, native mobile, or immersive 3D experiences, I handle the entire development cycle with a dual requirement: robust technology and an impeccable user experience.

Very familiar with high-growth startup environments, I am accustomed to juggling high-performance challenges (network optimization, cache management, fluid rendering). My hybrid profile allows me to design solid back-end architectures, power modern web interfaces (React, TypeScript), and develop high-traffic native mobile applications, whether on iOS (Swift, SwiftUI) or Android (Kotlin).

I have already supported organizations in key phases of their growth (Gobeep, Leclerc, Mangopay, Privy, royaltiz), by mentoring technical teams on cutting-edge topics such as augmented reality, finance, security, or cryptocurrencies.

Let's discuss your project to transform your technical challenges into an exceptional product
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

  • Italian

    Basic

Can work on-site
Lyon (up to 50km), Genève (up to 50km), Grenoble (up to 50km), Annecy (up to 50km), Chambéry (up to 50km)

Experience

  • royaltiz
    Software Engineer
    May 2021 - Today (5 years and 3 months)
    Lead frontend - full stack developer for royaltiz .com/.pro and associated backoffice
    - Product design, feature priority management and spec writing
    - Frontend tech stack choices and development
    - Backend services implementation and database design
    - Ethereum blockchain development, automated cryptocurrency transfers (ERC-20, EIP implementations, paymaster...)
    - Base app integration
    - Cockroachdb, Kubernetes, AWS, Cursor, Linear, Retool, NextJS, Typescript, GraphQL, web3, Privy, Bun, Vitest, Playwright, Privy, Coinbase...
    AWS Web3 Blockchain Next.js React.js
  • Easytopia
    CTO
    ENTERTAINMENT AND LEISURE
    May 2018 - May 2021 (3 years and 1 month)
    R&D and development of native iOS and Android augmented reality applications
    Scala/NodeJS/Swift/PostgreSQL backend design and development
    ReactJS CMS development
    ReactJS/Gatsby website development
    Swift Kotlin React.js PostgreSQL Augmented Reality
  • myorpheo / ophrys
    Freelance
    INTERNET OF THINGS (IOT)
    May 2017 - June 2017 (1 month)
    Development of an iOS iBeacon SDK for integration into museum visit applications.
    BLE beacon detection to enter/exit museum zones and trigger audiovisual experiences near exhibits
    iOS iBeacon Xcode

Reviews

4.9

Out of 10 ratings

S

Saïd

Graffiti SAS

Reviewed on 4/11/2022

Looking forward to working with Ryan again! Stuck for several weeks on a technical problem, we were able to benefit from his experience, his availability and his involvement to solve it. We recommend him without hesitation.

Ryan has chosen to hide 2 reviews

2 written reviews are private.

Recommendations

Mahmoud CharfeddineMC
Sébastien B.SB
Mahmoud Charfeddine and 1 other person have recommended Ryan

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor's then Master's in Information and Communication Systems and Technologies, specialization in Computer Science and Cooperative Systems.
    Université Savoie Mont-Blanc
    2013

Skill set

Categories