Gabriel is available for hire

Gabriel Hernández Ontiveros

Verified Expert in Engineering

Software Developer

Location

Toronto, ON, Canada

Toptal Member Since

October 7, 2016

Gabriel is a proficient and talented developer who has worked with the iPhone SDK for years. He has continued to develop many iOS apps for local clients including a back-end in Python/Django. He has worked with Bluetooth, WebSockets, maps, web services, and more. Gabriel also co-founded and developed a web platform which generates weather information based on satellite data; it can pinpoint it to the actual weather station using Python/Django.

iOS Objective-C Django REST APIs Django REST Framework Swift Android Development Git Python Agile Software Development Xcode PostgreSQL Firebase Sublime Text CocoaPods

Portfolio

Big Bang Dev

Android, Python, Django, iOS, Firebase

Wise King Media (via Toptal)

Amazon S3 (AWS S3), Shopify, Java, Swift, Android, iOS, Firebase

GlobalMet

Python, Django, iOS, Firebase

Experience

iOS - 7 years Objective-C - 7 years Python - 7 years Django - 6 years Google Maps - 4 years Swift - 3 years Android - 2 years Java - 2 years

Availability

Part-time

Preferred Environment

Sublime Text, Swift, Xcode, iOS, MacOS

The most amazing...

...thing I've made was a distributed system to download and process (linear regression) weather information on demand and based on the necessities of my clients.

Work Experience

Co-Founder | Head of Mobile Development

2010 - PRESENT

Big Bang Dev

Built the back-end and VoIP app for making phone calls to land phones for free; the user simply had to view an ad beforehand.
Developed a back-end for a live vehicle-tracking app for a public transportation system in the state of Sonora, Mexico.
Developed Caffenio (both the iOS and Android apps)–it's an app for a coffee company. It allows users to view the menu, order, view venue locations, and their account balance.
Developed the back-end for an iOS and Android app for a business customer loyalty-reward program. The BuddyCard is a loyalty-rewards program based on a web and mobile platform. Customers earn points in stores by checking in using their mobile app and redeem prizes.
Developed an online orders request system to redesign the order requests processes inside the organization.

Technologies: Android, Python, Django, iOS, Firebase

Mobile Developer (native iOS & Android) with Shopify Skills

2017 - 2017

Wise King Media (via Toptal)

Created an app to stream audiobooks for iOS and Android.

Technologies: Amazon S3 (AWS S3), Shopify, Java, Swift, Android, iOS, Firebase

Co-Founder | CTO

2013 - 2016

GlobalMet

Designed and implemented a web platform to process and generate accurate weather forecasts specific for certain coordinates.
Developed a back-end and API to distribute weather information, generated by an algorithm and forecasters, through web pages and mobile applications.
Developed an iOS app for the company’s clients.
Built a tool for forecasters to help them calculate weather forecasts based on satellite data, weather stations, and personal input using statistics and polynomial regression.
Deployed an automated distributed system to download satellite data and process it on demand.

Technologies: Python, Django, iOS, Firebase

Web Developer

2009 - 2010

Teknol Edge Technology

Developed an online administrative system to manage users and geographic data for mining industry software.
Built an online system for an attorney’s office.

Technologies: ASP.NET

Experience

GlobalMet

http://GlobalMet.mx

GlobalMet is a weather forecasting company that I co-founded.

It specializes in calculating and distributing weather information for a specific point; primarily focused on primary economic sectors in Mexico, like farming, cattle industry, aquaculture, etc.

The company currently has 12+ employees and has presence in the northwest states in Mexico.

Caffenio

Caffenio is an app for a coffee company; it allows users to view the menu, order, view venue locations, and see their account balance.

BuddyCard

http://buddycard.mx

BuddyCard is a business customer loyalty-reward program.

It is a loyalty-rewards program based on a web and mobile platform. Customers earn points in stores by checking in using their mobile app and redeeming prizes.

CiVO

CiVO is a VoIP app for making phone calls to land phones for free; the user simply had to view an ad beforehand.

UNE Transportes Urbano

http://une.sonora.gob.mx

UNE Transportes Urbano is a live vehicle-tracking app for a public transportation system in the state of Sonora, Mexico.

Skills

Languages

Objective-C, Swift, SQL, HTML, Java, Python, JavaScript, C#

Frameworks

RestKit, Django REST Framework, Django, Core Data, ASP.NET

Libraries/APIs

REST APIs, Facebook API, jQuery, ActiveRecord, CocoaPods, Google Maps

Paradigms

Object-oriented Programming (OOP), Agile Software Development

Platforms

MacOS, iOS, Amazon EC2, Android, Firebase, Shopify

Other

Minimum Viable Product (MVP), iPhone, Startups, Android Development, PIP

Tools

Google Compute Engine (GCE), Git, Vagrant, Virtualenv, VirtualBox, Sublime Text, Xcode, Ansible

Storage

Google Cloud, Realm, PostGIS, PostgreSQL, Amazon S3 (AWS S3)

Education

2007 - 2011

Bachelor of Science Degree in Information and Communication Technologies

Instituto Tecnológico de Estudios Superiores de Monterrey - Hermosillo, Sonora, Mexico

2010 - 2010

Participated in an Exchange Study in Computer Science: Image Processing and Pattern Recognition

Concordia University - Montreal, Québec, Canada

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring