Want to hire this engineer?
Check if Joseph Estanislao Calla is availableExpertise
Years of commercial development experience
5 years of experience
Core technologies
Other technologies
Project Highlights
Spark Digital
Jan `22 - Present
3 years
New York Post
News App WITH iOS
Responsibilities & achievements
"● Developed new large-scale features and high coding standards, App has more than 300k users per day. ● Improved “Crash free” from 91% to 99.92% percent on Firebase Analytics and Crashlytics by improving the performance using Unit testing, TDD, multithreading, and Instrument to prevent future bugs in production. ● Implemented StoreKit, users can subscribe and purchase different services like “user plus” or “exclusive news” inside the app. ● Developed multiple interactions to new features “Sports” and “Sports Subnav” by using UIKit to manage complex UI behaviors and new features built using SwiftUI and Combine. ● Support Push Notification features. Increasing by 10% immersion users into the app."
Globant
Apr `21 - Dec `21
8 months
Globant
Royal Caribbean App
Responsibilities & achievements
"● Implemented enterprise new features “Safety information” and “Purchase reservations” in Swift to show clients new requirements by using MVP Architecture. As a result, purchases increased by 25% by using StoreKit. ● Developed a new feature, “Video kids” using the AVFoundation and AVPlayer framework with High coding Standards. ● Identify and correct bottlenecks and fix bugs in Production using debugging, memory management, instruments, and through CI/ CD, code reviews. ● Implemented setting up the environment for publishing new applications and used App Store Connect. ● Communicate ideas to non-technical stakeholders, including the client(s) and business managers."
Izipay
Nov `20 - Apr `21
5 months
Izipay
app mobile with iOS
Responsibilities & achievements
MODIFICATIONS AND NEW FUNCTIONALITIES
BCP
Mar `20 - Dec `20
9 months
BCP / EVERIS
Banking App with iOS
Responsibilities & achievements
MODIFICATIONS AND NEW FUNCTIONALITIES
SISDOC
Jan `20 - Mar `20
2 months
Graña&Montero
Manage Documents
Responsibilities & achievements
"● Followed clean code architectures and design patterns. ● Worked as part of an agile team (Scrum) on leading-edge technologies. ● The application went through all phases from analysis, design, development, testing, and deployment."
Prado App
Nov `18 - Dec `19
1 year
Prado Soluciones
B2B App for clients - Invoice Electronic
Responsibilities & achievements
"● Developed this application from all phases to the App Store by using Apple Connect ● Build application from scratch. ● Constant communication with users to improve the application, both in UX and UI."
Education
Higher education in Computer Science
Agency
50-100
GMT-6
Mexico City/Mexico
Core Expertise
Industries
Business & Productivity, Logistics & Transportation, E-Commerce & Retail, Information services & Technologies, Construction & Real estate, Travel & Tourism, Augmented reality, SaaS, Energy, Telecommunication, Conversational automation, Management System & Automation
Want to hire this engineer?
Check if Joseph Estanislao Calla is available