Gaspar Castello
@gasparcastello
Experienced iOS Developer specializing in fintech applications and code optimization.
What I'm looking for
I am an experienced iOS Developer with a strong background in fintech applications, dedicated to developing and refactoring code to enhance readability, maintainability, and scalability. My daily tasks involve implementing SDKs, integrating RESTful APIs, and creating custom component classes while adhering to SOLID principles. I have successfully migrated applications to upper iOS versions and have built server-driven UI components using Apollo GraphQL and SwiftUI, ensuring prompt delivery of high-quality features.
Throughout my career, I have prioritized task management strategically, blending creativity with technical expertise to deliver exceptional results. I have implemented accessibility improvements and ensured compliance with design systems, which has significantly improved app performance. My collaborative approach has allowed me to work effectively with cross-functional teams in an Agile environment, where I have investigated and resolved memory leaks using Instruments, further enhancing app performance.
With a solid educational foundation in Mechanical Engineering and extensive training in iOS development, I am proficient in various technologies, including Swift, SwiftUI, Combine, and RxSwift. I am passionate about improving code quality through SOLID-based refactoring and enforcing coding standards, and I continuously seek opportunities to leverage new platform features to enhance user experience.
Experience
Work history, roles, and key accomplishments
IOS Developer
Epam Systems
Mar 2024 - Present (1 year 3 months)
Built and tested server-driven UI components using Expedia Creative, Apollo GraphQL, and SwiftUI. Implemented accessibility improvements and ensured look-and-feel compliance with Expedia’s design system. Investigated and resolved memory leaks using Instruments, improving app performance.
IOS Developer
FluxIT
May 2023 - Mar 2024 (10 months)
Integrated biometric authentication to enhance security measures. Refactored codebase from MVP to MVVM, improving maintainability and scalability. Migrated UI components to SwiftUI and upgraded iOS target/SDK versions.
IOS Developer
BP4 - Sodep
Oct 2022 - May 2023 (7 months)
Improved code quality through SOLID-based refactoring and enforced standards using linter tools. Implemented reactive programming patterns using MVVM and RxSwift. Focused on enhancing maintainability and scalability.
IOS Developer
Applica - Yacaré
Mar 2022 - Oct 2022 (7 months)
Integrated push notifications using OneSignal and handled local persistence with Realm. Worked on SDK and DeepLink integration. Migrated UI code from MVC to MVP and performed RESTful API integrations.
Education
Degrees, certifications, and relevant coursework
Udemy
iOS/Swift - Web Dev, Mobile and Web Development
Activities and societies: Integrated biometric authentication, refactored codebase from MVP to MVVM, migrated UI components to SwiftUI, upgraded iOS target and SDK versions, conducted unit testing.
Completed comprehensive courses in iOS and Swift development, including advanced topics like SwiftUI and biometric authentication. Also gained expertise in web development fundamentals.
UTN frsf
Engineering Degree, Mechanical Engineering
Studied Mechanical Engineering, gaining a strong foundation in engineering principles and problem-solving.
Availability
Location
Authorized to work in
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