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WIlliam Moraes

@williammoraes

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Senior iOS engineer with 8 years of experience in mobile development.

Brazil

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What I'm looking for

I am looking for a role that challenges my skills and fosters growth in a collaborative environment.

I am a mobile iOS-focused software engineer with 8 years of experience, specializing in Swift, XCode, and the iOS platform. My career has been marked by a proven ability to deliver innovative solutions that enhance user experience and drive revenue growth. Currently, I lead the development of a white-label banking app, where I automated processes that reduced setup time by 70% and deployment time from 3 months to 1 month, significantly improving client satisfaction.

Previously, I worked as a Senior iOS Engineer at Claro, where I tackled critical data concurrency issues and refactored over 20 critical flows, resulting in a 40% reduction in multithreading-related crashes. My experience at MercadoPago Fintech allowed me to implement a server-driven UI architecture, which reduced production bugs by 20% and accelerated development speed by 30%. I am passionate about leveraging technology to create efficient, scalable, and user-friendly applications.

Experience

Work history, roles, and key accomplishments

Current

Lead / Senior iOS Engineer

Current

Confidential White Label Project

Jan 2024 - Present (1 year 6 months)

Led the development of a white-label banking app, automating configurations and reducing deployment time by 70%. Implemented CI/CD pipelines and an automatic asset generation system, ensuring consistent branding across clients.

Swift XCode iOS CI CD GitHub Actions Firebase Apple Store Publishing UI UX Design Internationalization Scripting

Senior iOS Engineer

Claro

Mar 2022 - Present (3 years 4 months)

Refactored over 20 critical flows using Swift Concurrency, reducing multithreading-related crashes by 40%. Implemented MVVM architecture to support dual backend systems during migration, decreasing development time for new features by 50%.

Swift iOS MVVM Firebase Backend Refactoring Agile Methodologies

iOS Software Engineer

MercadoPago Fintech

Apr 2017 - Present (8 years 3 months)

Led the implementation of a server-driven UI architecture, reducing production bugs by 20% and increasing development speed by 30%. Developed a module for document scanning using AVFoundation, improving scan accuracy by 40%.