Hey there,
I'm
Alejandro ArjonillaMobile Developer
specializing in building iOS and cross-platform apps that deliver seamless user experiences.
Projects
AIBowling is a performance-tracking iOS app designed for bowling enthusiasts and professionals. Leveraging the Vision framework, it accurately tracks throws, analyzes player performance, and provides valuable insights to improve skills. The app focuses on delivering real-time data, ensuring a seamless and intuitive user experience.
SwiftUI
Xcode
AVFoundation
Vision
Work Experience
Mobile Lead
Bitstack | Full-Time
May 2023 - Present
- Maintained the legacy mobile application while simultaneously laying the foundation for a new scalable Flutter app.
- Integrated critical features such as payment platforms (Apple Pay and Google Pay) and real-time functionality using Firebase.
- Resolved bugs and optimized app performance to improve user experience.
- Designed a scalable architecture to support future growth and app development.
iOS Engineer
Hoseki | Full-Time
Nov 2021 - May 2023
- Designed and built a retail-focused iOS app from the ground up using Swift, with a focus on Bitcoin transactions.
- Integrated blockchain exchange APIs to enable real-time data retrieval and secure transactional capabilities.
- Collaborated on backend development using Node.js, ensuring efficient API communication and robust data flow.
- Worked closely with designers to implement user-friendly and visually appealing app features.
- Optimized app performance to handle Bitcoin-related transactions securely and efficiently.
iOS Developer
Xapo Bank | Full-Time
Oct 2018 - Nov 2021
- Contributed to the relaunch of Xapo's multi-currency wallet app, delivering high-quality features on time.
- Implemented key features using Swift, ReactiveSwift, and integrated tools like Firebase, Lokalise, and Amplitude.
- Set up Continuous Integration pipelines with CircleCI to ensure code quality and smooth delivery.
- Worked closely with product owners, designers, and developers in an Agile environment with 2-week sprints.
- Collaborated on performance optimization and bug resolution to deliver a seamless user experience.
iOS Developer Lead
United Cuisines | Full-Time
May 2017 - Oct 2018
- Led iOS development projects to digitalize client processes and improve user engagement.
- Worked with CocoaPods, Carthage, Realm, and Firebase for multiple applications.
- Coordinated and mentored external consultants on various iOS projects.
iOS Developer
Videona Socialmedia | Full-Time
Mar 2016 - Aug 2018
- Developed video editing apps (Videona, ViMoJo, and Kamarada) from scratch using AVFoundation and Realm.
- Implemented video recording, real-time filters, and export features for professional-grade editing tools.
- Collaborated with the design and product teams to create intuitive video editing experiences.
- Optimized app performance for smooth real-time rendering and video processing on mobile devices.