Steven Martreux

freelance ios developer swift / objectif-c

Moves to Paris, Paris 20e Arrondissement

  • 48.85661400000001
  • 2.3522219000000177
  • Indicative rate €600 / day
  • Experience 2-7 years
  • Response rate 89%
  • Response time 24h
Propose a project The project will only begin when you accept Steven's quote.

Availability not confirmed

Propose a project The project will only begin when you accept Steven's quote.

Location and geographical scope

Paris, France
Can work in your office at
  • Paris and 50km around
  • Paris 20e Arrondissement and 10km around


Project length
Would prefer:
  • Between 1-3 months
  • Between 3-6 months
  • ≥ 6 months
Would prefer avoiding:
  • ≤ 1 week
  • ≤ 1 month
Company size
  • 1 person
  • 2 - 10 people
  • 11 - 49 people
  • 50 - 249 people
  • 250 - 999 people
+2 autres




Github : martres martres
  • 21 Repos
  • 0 Gists


  • Français

    Native or bilingual


Skills (16)

Steven in a few words


From self-employed to team leader, I learn by self with a different kind of experience.

Those experiences allow me to deal with the team working, project management and permit me to focus my work on turning ideas into good products. I love to tackle new challenges and to find the best solution to improve the code.

I work with Swift, Objectif-C since 5 years.


CACD2 - Groupe Crédit Agricole

Banking & Insurance

iOS Developer

Paris, France

February 2020 - Today

Rebuild (MVP architecture) of a payment app (Ma Carte Crédit Agricole)
- Swift 5.0
- Implementation of payment validation features - Team of 4 Android and 3 iOS developers
- Encrypted Core Data
- CI (Bitrise)


Education & E-learning

iOS Developer

September 2019 - Today

- Swift 5.0

- Adding Zoom SDK

- Creating the mac app

- Adding new features


Banking & Insurance

iOS Developer

Paris, France

August 2019 - September 2019

- Swift 5.0
- Adding new features
- Maintenance of the app
- RxSwift
- GraphQL


Software Publisher

iOS Developer

October 2017 - May 2019

Deezer lets you listen to your music wherever and whenever you want. Explore over 35 million tracks on your computer, tablet, or phone. Keep all your music in one place, and take your entire library with you everywhere.

- Developed the iOS App (Swift / Obj-C)
- Developed & maintain the iOS SDK (Obj-c)
- Chromecast SDK updated
- AppleWatch ( WatchOS 5 ) change the architecture from MVC to Viper
- CarPlay refactor and migrate the code from obj-c to swift
- Waze SDK
- Siri shortcut
- Unit tests and functional tests
- Jenkins
- Agile


Digital Agency and IT company

Developpeur IOS

Lille, France

April 2017 - September 2017

Developpement de différents applications en SWIFT & Objectif-C

Application : Chronodrive, AuchanDrive, AuchanDirect, Brandalley


Digital Agency and IT company

Développeur iOS

July 2015 - January 2016

Réalisation d'une multitude d'applications pour Wazapp en objectif-C et Swift


Software Publisher

Développeur iOS

December 2014 - February 2015

Application en Swift


Réalisation d'une application Swift, application de rencontre vidéo.

March 2015 - May 2015


Administrateur réseau dans une école de commerce.

Jérémy Maignan - Sidekick


I had the opportunity to work with Steven at Sidekick. Steven is a super dedicated, autonomous and passionate engineer. He delivered, on time, what was planned in the contract (if not more). I would definitely recommend him for a position.

Thomas Dutrieux -


Très bon développeur iOS, sérieux et appliqué, je recommande Steven à toutes les personnes souhaitant réaliser une applications sous iOS de très bonne qualité !


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