Nicolas C.

Nicolas C.

iOS Developer

France
Trusted member since 2025
10 years of experience

He has led the development and delivery of high-impact applications across fintech, accessibility, and enterprise domains. His notable projects include doubling active users at Kard within six months, implementing SSO solutions for over 1 million Dashlane users, and launching France’s national Telecommunications relay service at Rogervoice. He has also contributed to ACCOR’s Vision Pro app and the life-saving Staying Alive application.

Known for translating complex requirements into intuitive, scalable solutions, Nicolas consistently delivers applications that combine exceptional user experience with maintainable, high-quality code.

Main expertise

iOSiOS10 years
SwiftSwift10 years
Mobile9 years
UIKitUIKit10 years
13+

Experience5

Betclic Group

Senior iOS Engineer

Betclic Group
Entertainment and Media
Apr 2024 · 2y

Betclic Group is a leading European online gaming company offering sports betting, casino, and gambling services, committed to responsible and secure digital entertainment.

  • Developed and maintained Safer Gambling features, ensuring compliance with EU and local regulations.
  • Integrated Instant Bank Transfer and MBway payment options, improving the user experience and transaction success rate.
  • Refactored the login flow, reducing authentication waiting times by 50% and enhancing app responsiveness.
  • Implemented an AI-powered chatbot for personalized customer support and instant query resolution.
  • Maintained rigorous code quality through CI/CD pipelines, code reviews, and Swift/iOS best practices.
iOSiOS
SwiftSwift
UIKitUIKit
FirebaseFirebase
REST APIREST API
2+
Betclic iOS App
Kard

Senior iOS Engineer

Kard
Financial Technology (FinTech)
Oct 2021 - Oct 2024 · 3y

Kard is a French fintech app that offers digital banking services for teens and families, promoting financial literacy and control through an intuitive mobile interface.

  • Developed key features such as in-app chat and a centralized hub to boost user engagement.
  • Doubled active customers in six months by enhancing onboarding and login UX with SwiftUI-based flows.
  • Added ATM location services and accessibility improvements.
  • Led the adoption of SwiftUI across the app, improving performance and accelerating feature deployment.
  • Collaborated cross-functionally with backend, design, and product teams in an agile setting.
GraphQLGraphQL
iOSiOS
SwiftSwift
UIKitUIKit
FirebaseFirebase
SwiftUISwiftUI
Kard iOS App
Dashlane

iOS Engineer

Dashlane
Cybersecurity
Oct 2019 - Oct 2021 · 2y

Dashlane is a global password manager and identity management platform serving millions of users worldwide.

  • Engineered Single Sign-On (SSO) solutions for B2B clients, supporting over 1 million users securely.
  • Enhanced AutoFill with OTP suggestion logic, streamlining login flows.
  • Contributed to the 2020 Super Bowl rebranding, delivering a polished, high-performing product launch.
  • Applied advanced Swift and SwiftUI practices to maintain accessibility and compliance standards.
  • Collaborated with cross-platform teams to ensure seamless integration with web and backend systems.
SwiftSwift
Usability Testing
UIKitUIKit
Objective-CObjective-C
REST APIREST API
3+
Dashlane iOS App
Rogervoice

iOS Engineer

Rogervoice
Healthcare IT
Aug 2017 - Oct 2019 · 2y 2m

Rogervoice develops communication tools enabling phone calls for the deaf and hard of hearing through speech recognition and live captioning.

  • Launched France’s national Telecommunications relay service, which was subsequently integrated by major telecom providers.
  • Developed real-time transcription using Google Speech-to-Text API, achieving 60 fps live captioning.
  • Implemented video call and in-app purchase features to enhance accessibility and usability.
  • Ensured compliance with accessibility standards, improving inclusivity and adoption.
GolangGolang
CC
C++C++
SwiftSwift
UIKitUIKit
4+

iOS Engineer

Various Experience
Information Technology (IT) and Services
Sep 2015 · 10y 7m
  • Delivered high-impact freelance projects for international clients across hospitality, health, and AI sectors.
  • Developed the ALL.COM Vision Pro app for ACCOR in partnership with Incal.AI, implementing 360° booking experiences.
  • Rebuilt Staying Alive, a life-saving emergency response app in SwiftUI, helping first responders save approximately 10 lives per month.
  • Created MEE6 Keyboard, an AI-based keyboard extension for personalized sticker generation.
  • Delivered SwiftUI and Supabase integrations for clients including Yurplan, Steeple, Bright, BigApe, Kleep.ai, Udini.ai, and SpotR.
iOSiOS
SwiftSwift
FigmaFigma
Objective-CObjective-C
SwiftUISwiftUI
SupabaseSupabase
Staying Alive iOS App

Assessments

Engineering excellence

Nicolas’s overall performance in a 90-minute live technical assessment ranks in the top 5% of vetted iOS Developers at Proxify.

Certificates 1

designcode.io
SwiftUI for iOS 14designcode.io

Issued May 2021
Credential ID DC-1620250289207

designcode.io
SwiftUI for iOS 14designcode.io

Issued May 2021
Credential ID DC-1620250289207

Do you want to know more about Nicolas’s certifications?Book a call

Portfolio

Highlighted by Nicolas

Betclic iOS App 1
Apr 2024 · Betclic Group
Betclic iOS App

Other projects 3

Kard iOS App
Dashlane iOS App
Staying Alive iOS App

Education

California State University, Long Beach
California State University, Long Beach
CECS2016 - 2017
EPITECH
EPITECH
Information Technologies2013 - 2018

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