I am a results-driven iOS and mobile developer with 10+ years of experience building and shipping apps for both commercial and non-commercial use. I specialize in delivering high-quality, well-tested software by applying solid software engineering practices, code reviews, source control, continuous integration, testing, and Agile methodologies. I am passionate about creating performing, accessible, and robust mobile applications, and I am dedicated to delivering first-class results. I aim to leverage leadership and coding skills to exceed expectations on every project. I enjoy shaping scalable architectures, driving technical excellence, and mentoring teams to improve code quality and maintainability. My focus is on delivering delightful user experiences with Swift, SwiftUI, and modern concurrency, while continuously improving performance and stability across iOS apps.

Edwin José Peña Sánchez

I am a results-driven iOS and mobile developer with 10+ years of experience building and shipping apps for both commercial and non-commercial use. I specialize in delivering high-quality, well-tested software by applying solid software engineering practices, code reviews, source control, continuous integration, testing, and Agile methodologies. I am passionate about creating performing, accessible, and robust mobile applications, and I am dedicated to delivering first-class results. I aim to leverage leadership and coding skills to exceed expectations on every project. I enjoy shaping scalable architectures, driving technical excellence, and mentoring teams to improve code quality and maintainability. My focus is on delivering delightful user experiences with Swift, SwiftUI, and modern concurrency, while continuously improving performance and stability across iOS apps.

Available to hire

I am a results-driven iOS and mobile developer with 10+ years of experience building and shipping apps for both commercial and non-commercial use. I specialize in delivering high-quality, well-tested software by applying solid software engineering practices, code reviews, source control, continuous integration, testing, and Agile methodologies. I am passionate about creating performing, accessible, and robust mobile applications, and I am dedicated to delivering first-class results. I aim to leverage leadership and coding skills to exceed expectations on every project.

I enjoy shaping scalable architectures, driving technical excellence, and mentoring teams to improve code quality and maintainability. My focus is on delivering delightful user experiences with Swift, SwiftUI, and modern concurrency, while continuously improving performance and stability across iOS apps.

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Experience Level

Expert
Expert
Expert
Intermediate
Intermediate

Language

Spanish; Castilian
Advanced
English
Advanced

Work Experience

Lead iOS Developer at FINTONIC
December 1, 2023 - Present
Remote contract role focused on architectural redesign using Swift and SwiftUI, optimizing CoreAnimation for fluid interfaces, and delivering features like budget tracking, expense categorization, and personalized financial advice to increase user engagement.
Senior iOS Developer at SANTANDER
December 31, 2023 - September 10, 2025
Remote contract; boosted app engagement by implementing advanced design patterns, improved accessibility with VoiceOver and scalable font options; led code reviews and mentored the team to elevate code quality and maintainability.
Senior iOS Developer at MYTOYS / MIRAPODO
December 31, 2022 - September 10, 2025
Remote contract; led rebranding of the e-commerce app, refactored with SwiftUI and Combine, improving performance and maintainability; applied design patterns to create a scalable, modular codebase.
iOS Lead Developer at AYOBA APP
August 31, 2022 - September 10, 2025
Remote contract; led a 15-member development team for a messaging app, achieving higher user retention and driving the app to a Top 5 ranking in Africa; utilized RxSwift for real-time data updates and smooth UI interactions; enforced clean code and patterns.
iOS Lead Developer at La Poste Apps
March 31, 2020 - September 10, 2025
Implemented improvements and innovative features for La Poste, La Poste PRO, and Youpix apps, focusing on performance and user experience.
iOS Lead Developer at Worldline by Atos
March 31, 2019 - September 10, 2025
Progressed from coder to lead developer, spearheading the development of key iOS apps (CCMA, Olympique Lyon, Nespresso) and guiding project delivery.
Lead iOS Developer at FINTONIC
December 1, 2023 - Present
Enhanced app performance and responsiveness through architectural redesign using Swift and SwiftUI. Led technical decisions and optimized CoreAnimation integration for fluid and dynamic user interfaces. Developed and implemented new features, including budget tracking, expense categorization, and personalized financial advice, resulting in a 15% increase in user engagement. Applied strict concurrency models and initiated migration to Swift 6, ensuring thread safety and code modernity.
Senior iOS Developer at SANTANDER
December 31, 2023 - September 12, 2025
Boosted iOS banking app engagement by 30% through the implementation of advanced design patterns and best practices. Enhanced usability and interface appeal by integrating VoiceOver support and customizable font sizes. Championed clean code practices, led code reviews, and mentored team to elevate code quality and maintainability.
Senior iOS Developer at MYTOYS / MIRAPODO
December 31, 2022 - September 12, 2025
Led the rebranding of an e-commerce app, transforming the user interface for a superior user experience. Refactored the app with SwiftUI and Combine, boosting performance and simplifying maintenance. Applied design patterns to develop a scalable and modular codebase.
iOS Lead Developer at AYOBA APP
August 31, 2022 - September 12, 2025
Led and supervised a 15-member developer team, overseeing the maintenance, development, and optimization of a messaging app. Achieved a notable 20% increase in user retention and propelled the app to the Top 5 ranking in Africa. Utilized RxSwift to craft a seamless user experience with real-time data updates and smooth UI interactions. Enforced clean code principles and design patterns throughout the team, enhancing code readability and reducing technical debt.
Lead Developer at LA POSTE APPS
March 31, 2020 - September 12, 2025
Implemented improvements and innovative features for La Poste, La Poste PRO, and Youpix apps.
Lead Developer at WORLDLINE BY ATOS
March 31, 2019 - September 12, 2025
Progressed from coder to lead level, spearheading the development of apps (CCMA, Olympique Lyon, Nespresso).
Lead iOS Developer at FINTONIC
December 1, 2023 - Present
Enhanced app performance and responsiveness through architectural redesign using Swift and SwiftUI. Led technical decisions and optimized CoreAnimation integration for fluid and dynamic user interfaces. Developed and implemented new features, including budget tracking, expense categorization, and personalized financial advice, resulting in a 15% increase in user engagement. Applied strict concurrency models and migration to Swift 6, ensuring thread safety and code modernity.
Senior iOS Developer at Santander
December 31, 2023 - October 14, 2025
Boosted iOS banking app engagement by 30% through the implementation of advanced design patterns and best practices. Enhanced usability and interface appeal by integrating VoiceOver support and customizable font sizes. Championed clean code practices, led code reviews, and mentored team to elevate code quality and maintainability.
Senior iOS Developer at MYTOYS / MIRAPODO
December 31, 2022 - October 14, 2025
Led the rebranding of an e-commerce app, transforming the user interface for a superior user experience. Refactored the app with SwiftUI and Combine, boosting performance and simplifying maintenance. Applied design patterns to develop a scalable and modular codebase.
iOS Lead Developer at AYOBA APP
August 31, 2022 - October 14, 2025
Led and supervised a 15-member developer team, overseeing the maintenance, development, and optimization of messaging app. Achieved a notable 20% increase in user retention and propelled the app to the Top 5 ranking in Africa. Utilized RxSwift to craft a seamless user experience with real-time data updates and smooth UI interactions. Enforced clean code principles and design patterns throughout the team, enhancing code readability and reduce technical debt.
iOS Lead Developer at LA POSTE APPS
March 31, 2020 - October 14, 2025
Implemented improvements and innovative features for La Poste, La Poste PRO, and Youpix apps.
iOS Lead Developer at WORLDLINE BY ATOS
March 31, 2019 - October 14, 2025
Progressed from coder to lead level, spearheading the development of apps (CCMA, Olympique Lyon, Nespresso).
iOS Lead Developer at AYOBA APP
March 1, 2020 - August 1, 2022
Led and supervised a 15-member developer team, overseeing the maintenance, development, and optimization of a messaging app. Achieved a notable 20% increase in user retention and helped propel the app to the Top 5 ranking in Africa. Utilized RxSwift for real-time data updates and smooth UI interactions. Enforced clean code principles and design patterns to reduce technical debt.
iOS Lead Developer at LA POSTE APPS
January 1, 2019 - March 1, 2020
Implemented improvements and innovative features for La Poste, La Poste PRO, and Youpix apps.
iOS Lead Developer at WORLDLINE BY ATOS
March 1, 2013 - March 1, 2019
Progressed from coder to lead, spearheading the development of apps (CCMA, CatRadio, Olympique Lyon, Nespresso) using Swift and Objective-C.

Education

Master at Universidad Politécnica de Catalunya, Barcelona
January 1, 2013 - December 31, 2014
Postgraduate at Universidad Politécnica de Catalunya, Barcelona
January 1, 2012 - December 31, 2012
PhD in Project Management at Gimbernat University School, Barcelona
January 1, 2012 - December 31, 2013
BA in Computer Engineering at Universidad Nacional Experimental del Tachira
January 1, 2004 - December 31, 2010
Master Mobile Business & Apps Design at Universidad Politécnica de Catalunya, Barcelona
January 1, 2013 - January 1, 2014
Postgraduate Mobile Apps Design at Universidad Politécnica de Catalunya, Barcelona
January 1, 2012 - January 1, 2012
PhD at Gimbernat University School, Barcelona
January 1, 2012 - January 1, 2013
Master Mobile Business & Apps Design at Universidad Politécnica de Catalunya, Barcelona
January 1, 2013 - December 31, 2014
Postgraduate Mobile Apps Design at Gimbernat University School, Barcelona
January 1, 2012 - December 31, 2012
PhD in Project Management at Gimbernat University School, Barcelona
January 1, 2012 - December 31, 2013
BA at University National Experimental of Táchira
January 1, 2004 - December 31, 2010
Master Mobile Business & Apps Design at Universidad Politécnica de Catalunya, Barcelona
January 1, 2013 - January 1, 2014
Postgraduate Mobile Apps Design at Universidad Politécnica de Catalunya, Barcelona
January 1, 2012 - January 1, 2012
PhD at Gimbernat University School, Barcelona
January 1, 2012 - January 1, 2013
Computer Engineer BA at University National Experimental of Táchira
October 1, 2004 - February 4, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Media & Entertainment, Retail