James Lee

Brian Mateo Ortiz Rojas

iOS Developer  

Contact Me

About Me

Senior iOS developer with 5+ years of professional experience working in several industries like health, education, digital banking, video on demand, sports, betting, and casino games. Enthusiastic and passionate about mobile development, committed and eager to contribute to the prosperity of organizations through problem-solving, organizational skills, and technological solutions.

Experience working with customers from the USA, Canada, South America and Europe.

My technical expertise includes:

  • Swift (SwiftUI, UIKit, Core Data, SQLite, AVFoundation, Core Animation)
  • Objective C
  • Swift Package Manager, Cocoapods, Chartage
  • Implementing libraries and third partyframeworks, integrating API rest with Alamofire, AFNetworking and URLSession
  • SOLID principles and clean code, design patterns (Singleton, Publisher, Observer, Factory Method)
  • MVVM, VIPER, MVC architectures
  • Unit test, Test Driven Development
  • Flutter and Dart
  • Apps deployment on AppStore and TestFlight; continuous integration and continuous delivery
  • Git handling
  • Working with agile methodologies such as SCRUM and working with interdisciplinary teams
  • More than 6 applications made from scratch by my own (2 with Swit UI) and more than 10 applications I contributed to, live on the app store.

Projects

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Fitzdares and CasinoTime (Canada) - Sports Betting Apps - iOS

Theese apps are for entertainment, it has virtual casino games, sports betting, live betting, cash deposit, withdrawal among others betting features.

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ESPN Sports Center (USA) - tvOS

This is an streaming app. Video on demand. Users with ESPN or ESPN+ subscription can access to hundred of videos, life events, series, documentals and sports moovies.

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ArmCare App (USA) - iOS

The Arm Care App is designed to help baseball players optimize their performance while protecting their arms from injury. Players get real metrics on their rotator cuff strength the same way a bat sensor helps dial in swing path and launch angle. Players receive custom arm care programs everyday to help strengthen their weak links, rather than a one size fits all program. Each player will know exactly what to do to keep his arm feeling fresh and strong all season long.

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Daviplata App (CO) - iOS

In this app we can transfer money between persons (through cell phone number) and bank accounts. There is a digital credit card available for users, you can purchase insurances, pay bills and public services, and also purchase products from allies stores.

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Efecty App (CO) - iOS

In this app we can transfer money between persons called spins. We can pay bills and public services.

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URosario App (CO) - iOS

This app was developed for the University of Rosario, it has some features as grades viewer schedule viewer for students, video call attention, internal appointments schedule among others.

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Colmedica App (CO) - iOS

This app is from a prepaid medicine entity in Colombia called Colmedica, it has some features as, medical directory viewer, medical authorizations request, SOM (service of medical orientation), exam requests, international insurance coverage, payment of medical bills, customer Service.

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Medplus App (CO) - iOS

This app is from a prepaid medicine entity in Colombia called Medplus, it has some features as Medical Directory, Medical Authorizations, Appointment scheduling, Medical Centers (loc, info), Payment of medical bills, Customer Service, Information prepaid medical plans

Work Experience

Senior iOS developer - FSB Technology (2022 - 2023)

Develop new features and correct bugs for casino and sports betting apps like CasinoTime (CA), Fitzdares (CA). Work with international teammates.

Ssr iOS Developer - Globant (2021 - 2022)

Develop new features and correct bugs for tvOS ESPN Sportscenter USA application. Work with Disney and international teammates.

iOS Developer - Soluntech (2020 - 2021)

Develop native for iOS ArmCare application, correct bugs and build new features. Refactor and build new architecture.

iOS Developer - Valid (2020)

Develop native for iOS Daviplata application, correct bugs and build new features. I worked on allies feature and virtual store.

Mobile Developer - Proximate (2018 - 2020)

Develop native mobile applications for Android and iOS. Analyze, design, and support mobile applications. Publish applications to the App store and Google Play Store Manage customer databases. Experiences with clients such as Seguros Colmena, EAN University, U. Rosario, Medplus, Colmédica, Efecty.