J. Jesús Piedra Chávez
Development
Hidalgo, Mexico
Skills
Kotlin (Android)
About
J. Jess Piedra Chvez's skills align with Programmers (Information and Communication Technology). J. also has skills associated with Web Professionals (Information and Communication Technology). J. Jess Piedra Chvez has 16 years of work experience, with 5 years of management experience, including a low-level position.
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Work Experience
Mobile Dev Sr
PayPal
February 2023 - June 2024
- Improving SonarQube coverage for existing projects, Creation of Unit Tests and Screen Tests. Use of Kotlin, MVVM, git, GitHub, LiveData
Mobile Dev Sr
Banorte
December 2021 - February 2023
- Design and development internal solutions to contribute to architectural decision making. Use of OCR Incode library to read data from diferent mexican recipts (Telmex, CFE, izzi, Total Play, etc). Consumption of web APIs using Retrofit, JSON, GSON, Postman. Use of Kotlin, LiveData, CameraX, MVVM, ZXing
Senior Android Developer
May 2019 - December 2021
- modules for the CONECTADOS project from PepsiCo, using MVVM, SQLite, SourceTree, git, Android Studio, kotlin, UX, UI.
Senior Android Developer
Matersys
January 2019 - May 2019
- Development of the Biometrics module for the Retiros application in PROFUTURO. Use of Content Provider, consumption of webservices with Retrofit, JSON, GSON, LiveData.
Senior Android Developer
PagaTodo
September 2018 - January 2019
- Optimization of existing modules in YaGanaste! code. Synchronization between different developers using Subversion.
Senior Android Developer
CODE
November 2017 - August 2018
- Creation of the image rating module on Android using OpenCV. Use of biometrics to identify users of SEDESOL PAM system. Developing of a signature panel on Android and a dynamic form basedon HTML.
Android Tech Lead
Grupo Salinas
January 2013 - November 2017
- Creation of AdvanceAmerica app for POS, with this app the client can mark options, read service contracts, provide or confirm personal information and even sign documents. Use of Java, websockets, JSON, Base64, PlugPDF library, C#, Bluetooth, NFC, webservices. During this time I traveled many times to the city of Spartanburg, S.C. to solve technical problems with QA staff, formal meetings with IT staff and field work in pilot centers.
iOS Developer
Grupo Salinas
January 2011 - January 2013
- Development of an iPad application for viewing reports, graphs and tables by consuming web services. Use of CoreGraphics and CorePlot.
.Net Developer
Grupo Salinas
January 2008 - January 2011
- Development of web modules for displaying reports, graphs and tables and downloading files, using .Net technology, javascript and CSS. Maintenance of webservers (IIS) and repositories (SVN).
