Ernest Ma Email & Phone Number

San Francisco, California, Us

Core Product • Content • Curation & Boards

San Francisco, California, Us

Core Product • Creator • Creator Incentives

San Francisco, California, Us

Core Product • App Foundation • Performance• iOS mobile application performance engineer with primary goal to improve user experience and engagement by optimizing performance to deliver high application quality, usability and reliability• Optimizing performance by improving code quality and client side architectural design such as threading, adopting new tech like http2 with connection reuse for image downloading, caching, etc• Regression detection, tooling and troubleshooting with tracing using Zipkin, instrumentation using xcode instrument, data analytics on performance metrics measured from end to end using SparkQL.• Regression prevention by implementing unit and integration tests as well as running them in different stages of the development cycle• Automate weekly mobile release metric health check by using scheduled run tasks with Jupyter report in Python. Report is implemented with different trace analyze strategies to automatically detect and root caused regression.• Support other teams to develop high performance features by providing services such as helping with metric definitions, logging implementation, code best practices, and troubleshooting, etc• Drive projects to execute efficiently, stay on the path and provide meaningful impact by creating vision doc for team goals and objectives, engineering strategy for realizing the goals and objectives, and design doc for individual project implementation.

• Develop children financial literacy education focused iOS apps in Swift 4 with GraphQL and Apollo• Create and manage user-story backlog, research and design compelling features and services• Apply agile development methodology and took ownership of mobile app development, testing, collaboration, product release strategy and beta testings• Identify and resolve any non-compliance issues regarding child privacy concerns

Emeryville, Ca, Us

• Lead the effort and build family-centered device controls and content filtering application in Swift 4 while maintaining existing applications for multiple partners (AT&T/Verizon/Sprint) and deliver projects on time• Work on prototypes and proof of concepts for presentations• Mentor interns and engineers, and perform quarterly and annual engineers’ performance reviews• Interview and effectively participate in the hiring and termination of employees• Responsible for engineering roadmap, mobile app architecture and implementation, product release strategy and app store submission, and engineering collaboration with product, UI/UX design, QA and customer service• Apply object-oriented, protocol-oriented programming, MVC/MVVM/VIPER design patterns, concurrent programming (GCD), and design modularized applications using dependency management frameworks/tools such as Typhoon, Swinject, CocoaPods, Carthage, etc• Lead the effort to the adoption of Swift 2.2 and 3 from Objective-C• Deliver a better user experience by supporting Accessibility, Universal links and Push notifications

npnf, inc was spun off from SK Planet, inc in February 2015• Unity gaming platform client SDK design and development in C#• Develop native iOS (Objective-C) and Android Unity Plugin • SDK customer tech support• Mobile game development with Unity in C#

San Francisco, Ca, Us

• Unity gaming platform client sdk design and development in C#• SDK Support for 1st, 2nd and 3rd Parties• Company's Developer Portal Web Application development in AngularJS (developer.npnf.com)• Third Party SDK integration in games such as Chartboost, Vungle, Amazon, etc.• Jenkins builds setup and management for games and sdk

• iOS Developer working with Objective-C, Cocoa, TouchDB MapReduce on a daily basis• Design and implementation of the iOS Application with focus on UI and client backend• Daily interactions with version control software (Git) and integration server (Jenkins)• Analyze user information and third parties medical information using EMR and MySQL• Experience with Amazon EC2, RDS, EMR, Route53, S3• Participate in project management, product design, UI/UX design, testing, software architecture, and database schema design.

San Jose, California, Us

Major Tasks in TiVo:• Working with QE teams for features testing• Troubleshoot and resolve application issues • Implementation of application front-end and server-side enhancements.• Assisting to resolve UI and back-end logic bugs using C#, Javascript, html.• Development of new features using Web-Service• Development of new features in company web applications using C#, Javascript, html • Migrate two of the company web applications from one back-end database server to another.

Bachelor Of Science, Electrical Engineering And Computer Science

Electrical Engineering