Senior iOS Engineer / October 2018 - Present
WHOOP

Working at WHOOP has been a wonderful experience, when I recently joined the iOS team I was wondering how the strap sends data to the phone and well I had the task to create the iOS Core Connectivity and Data Transmission for the WHOOP Strap 3.0 using Bluetooth Low Energy (BLE) I created components like:

• Historical Data. Synchronize the data using the WHOOP BLE protocol, store into the iPhone and then upload to the Cloud.
• Send Commands and Process Data using the WHOOP BLE Protocol, process the data and responses using background data tasks and queues by component.
• Managing the Pairing and Bonding process with the device.
• Firmware Update. Process to update the firmware of the strap and also coordinate the Bluetooth Firmware update of the strap using Nordic SDK for iOS.
• Data Sync. Implementing Bluetooth State Restoration and Background Fetch so the app can continuously synchronize data.

I was in charge of creating below UI features:
• WHOOP Teams. Users can Create Teams, Invite People and share daily Strain, Recovery and Sleep.
• Performance Profile. All new design that display more statistics.
• Credit Card on Signup flow. Users can enter the credit card to pay/renew the membership.
• Activity Live Heart Rate. Whenever you start an activity using a Strap 3.0 there is a view where you can see your Live Heart Rate.
• Strap Settings. Users can Turn On/Off the HR Broadcast and see Firmware of the Strap, Pair with a WHOOP Strap. Users can initialize the pairing and bonding process, Advanced Settings, Users can Reboot the Strap, Erase the Strap Data, Unpair the Strap, Send Diagnostic Data.
• Firmware Update. Execute the firmware update process OTA (Over the air) with smooth transitions between views based on the state of the process and also adding nice and smooth animations.

All this I achieved thanks to the support of several people who trusted me and gave me this great opportunity.

Senior iOS Developer / April 2015 - July 2018
Allstate Insurance Company - Contractor

I joined SMCE team to develop many features on the Allstate Mobile App iOS like "Confirm Book Service", "Get a Taxi", "Choose vehicle color", "Enter your phone number" all this features were introduced in the version 9.5 “SPEED” after finishing this project I joined Connected Car iOS Team to develop from scratch Milewise app, when I joined the team there was only one iOS Developer and after two weeks he left and I had to develop the entire app by myself, I had to join meetings every three days with business team, QA team and User Interface team, develop the front end in order to have a dynamic views based on Cards, prepare the meetings/presentation for the Penetration Test and create the custom method to update the credit card of the user based on PCI standards.

Accomplishments:
• Design and develop from scratch Milewise app.
• Develop layer to consume RestFul web service using NSURLSession, NSURLSessionDataTask, NSOperations, JsonModel, Delegates and Categories.
• Develop dynamic views to create the front-end of Milewise app.
• Develop custom stacked bar chart for Milewise app.
• Develop custom transitions to display the route in a Map and details of the trip in a custom "Detail Card".
• Design Core Data objects and use NSOperations to get all gps coordinates and trip information using encryption AES 256 to store the information.
• Implementing sitecatalyst to track all behaviors of user.
• Develop dynamic configuration to switch between web service calls.
• Design and Develop persistent data layer using Core Data.
• Manage github repository creating branches doing merge, pull request and releases.
• Create the script to use in Jenkins in order to create build ipa file to distribute in landing zone for testing purpose, TestFlight and App Store.

Sr .Net & Sr iOS Developer / December 2013 - March 2015
GE Capital

I was in a team of two developers that we created the very first website to calculate the customer risk rating for GE Capital, the system is very well adaptive to change the formulas to make the calculations also has an admin dashboard with assignments, permissions and a very variety of catalogs and also a dynamic approval flow, so the admin can remove/add/update permissions based on roles.

Accomplishments:
• Develop from scratch web site CRR to help users to calculate the customer risk rating and track due date for all customers.
• Prototipo Buró de Crédito is a website that generate automatically tapes to report to Credit Bureau in 5 minutes instead of two weeks that users use to spent doing manually.
• GE Fleet is a Prototype iOS app that offer customers the nearest location of service centers.
• Design all views with auto layout and constrains also create constraints programmatically.

Lead iOS Developer / October 2012 - November 2013
Naos Technology

Accomplishments:
• Designing, developing, testing and implementation of app in App Store.
• Design Core Data structure. Developed with Xcode 4
• UI and Application design with NIB files programmatically and using Builder interfase.
• Design user interface, UIViewControllers, UITableViewControllers, custom UITableViewCell with Interface Builder.
• Implement SDTBarcode to read QRCode and generate QRCode as well.
• Implement Objective-Zip to compress files and attach to an email.
• Implemented many OOP and patterns like MVC, KVO and Singleton.
• Design all views with auto layout and constrains.Performed to complete unit testing, integration testing and regression testing the application.
• Designing and developing Prescription in PDF format.
• Design custom html to send an email with Electronic Invoice attached. Design and develop custom alert views.Design custom TabBar.
• Participated in review meetings and took the initiative to meet the QA testing targets.

Sr .Net & Sr iOS Developer / October 2010 - September 2012
Novo Nordisk

After analyzing the requirements of the company to create an electronic invoice system I realized that the main functionality was simple, to create an XML file using schemes that the government provided you, then I told my manager that I could develop it, he convinced the finance manager to develop the project and we released it after 6 months, the company saved $3.4 per each electronic invoice generated, the company generates around 3000 electronic invoices per month. The system was able to generates 25 electronic invoices per second and also generates a pdf file.

Accomplishments:
• Develop from scratch web site NovoFacturacion to generate automatically electronic invoices to cover all requirements for this kind of invoice in Mexico.
• iNovo Muestras is a Prototype that solves the problem of having well document the inventory and physician signature when giving originals samples and have updated inventory.

Technical Leader & .Net Developer / July 2006 - September 2010
Sinersys

Accomplishments:
• Control Chart – Nissan NA. It solves the problem of performance when generating reports and parts prices, estimates and calculations fluctuations, reporting in Excel financial formulas, such reports were sent to executives in Japan and USA.
• ASV – Facileasing. It creates a solution to support the entire operation Facileasing for managing maintenance and administrative agencies, such application solves the problem of knowing at all times where the vehicle and send alerts in case of delay, also has a after sales process which sends SMS messages to the client to tell your next upkeep.
• Reporting L&D – Renault. It solves the problem of generating reports in stock vehicles with Mexico, France, report of vehicle parts, customs, etc.