I am a Senior iOS Engineer with mastery in modern iOS application development approaches. I have shipped apps for John Lewis, Trivia Crack/ Trivia Crack Kingdoms, PepsiPass (US), Metro Bank (UK), ALDI (UK), Inkit, etc. I utilize best practices in architecting software solutions on projects and apply AI and Machine Learning techniques to innovate and deliver high-quality AI-focused products on projects for clients.
The John Lewis app allows users to browse through an extensive range of fashion, homeware, gifts and more. Users can shop on the move or in store. The app allows John Lewis members to access rewards vouchers digitally through the app. Led a team of 15 iOS developers on this project.
This is the digital banking platform for Metro Bank, a high street bank. Integrated the team that developed the mobile app from start to finish. Handled the most complex UI designs and all-screen compatibility as well as accessibility tasks on the project.
The ALDI app enables users to browse and buy great-value products on the go. Users can order products simply and safely with a secure checkout process. Improve app performance, refactored the ALDI codebase and enhanced Tests and UITests coverage.
Trivia Crack allows users to have fun challenging friends in hot trivia games. Improved the game by fixing bugs, refactoring legacy code and extracting shared code among apps into private CocoaPods repositories.
This is Cristian's personal YouTube channel dedicated to helping viewers learn to program and understand iOS apps through a wide array of technical topics using small and easy to consume videos on object-oriented programming, design patterns and much more within the iOS space.
Senior iOS Engineer
2019 - Present (4 years)
Creating and developing innovative software solutions for clients across a broad range of industries.
Started and led the Machine Learning and Artificial Intelligence team at Deloitte; organized technical processes for the first proof of concept solution for a recommender system to be implemented within a retail setting.
Cleaned and refactored a Salesforce-integrated Core Data-based app; making it available for both iPhone and iPad using best practices for UI development.
Improved the ALDI application reducing 1500 crashes a day to 7 by refactoring 80% of the code following clean code principles and adding up to 80% Tests and UITests coverage to the app.