Ivan Johnson Email & Phone Number

San Francisco, Ca, Us

Working with PM to develop requirements for new features, including calculating development timeline for getting these features in production.Breaking down new features into jira tasks. Delegating and managing the development process to make sure the project is tracking on time. Working with other teams to investigate and deploy core changes that would benefit developers and the company by reducing the time required for developing new feature requests.Supporting and participating in teams discussions regarding features and support issues with customers. Presentation of best practice and possible improvement ideas that could benefit the company's development processes.Building new customer features, bug fixes and improvements for our Android and iOS mobile apps. Build/Update backend components and api to support new feature development for the mobile apps.

New York, Ny, Us

Lead Android developer on a custom library for facilitating authentication for all applications developed by the company. Manage the task and completion of those tasks to ensure the project tracks according to the milestones. Design Develop integration, rollout plans for the project. Assist in the design and development of backend service to support multiple applications including OnDemand and Auth libraries. Mentor coworker and lead various discussion

Oakland, Ca, Us

Lead the effort and a small team of Android Devs to improve the code base by making it more modular and reusable.Work with PM and TPM to spec and build new Android features which include third party integration, i.e Sonos, Amazon and bluetooth linked devices.Work on the Audio Playback to improve the quality of audio playback in the apps across all support platforms.Lead the Mobile Build-tool development strategy for iOS and AndroidWork with the Mobile Devs and DevOps teams to build out a push button deployment system for the various appsManage the release cycles for the Android App

San Francisco, Ca, Us

Manage the development progress of outside contractors during the development cycle of the Android and IOS projects. Review application and test to ensure functional requirements are being achievedReview development cycle and track progress of team to determine if phases are following schedulesMaintain clients Rest API. Improve the performance for existing endpoint and develop new onesDevelop Android testing infrastructure utilizing TeamCity, JUnit and Robotium. Automate testing by simulating server response and using Robotium to perform user interactionsDeveloped Automated testing for IOS application with the use of Calibash-ios and Cucumber

Participated in the design and development of a scalable server architecture to support the API for our mobile applications. Implemented PHP based sever components to be client independent and stateless. Experience integrating with social media apis (i.e. Facebook, Twitter, Foursquare, Tumblr, and more)Developed the Android application with advanced UI leveraging Fragments for flexible UI, Services for background data retrieval, and SQLite for local data cacheing. Optimized storage components on Android client using SQLite tables for complex record storage and retrieval. Including object serialization from a database cursor. Optimized application performance to provide the user with a more responsive experience, including start up time, activity transitions, and data access Optimized memory usage for loading and manipulating images.Improved total application memory usage and stability Built custom views to implement novel presentations and user interactions to differentiate the application. Core developer for the Blackberry application. Built client/server interfaces to manage client message cache. Optimized the parsing of xml messages and persistence storage mechanism for fast retrieval and low memory usage.Built custom UI components to improve the user interaction and polish of the application. Investigated and corrected bugs and issues reported by users, including crashes, UI issues, 3rd party service issues, server issues.Prioritized bugs and error reports as they were received to scope out work for the next release.

Manassas, Va, Us

Worked with a team to build and test web components for the Non Tactical Data Processing System (NTDPS) application suite. Worked with STRUCTS and other frameworks to build various applications for gathering operational data. Built custom reporting application, leveraging open source libraries, to display graphs and summaries of critical data. Technical Lead in Philadelphia for a team of 4. Monitored team progress and provided constructive feedback and assistance to team members. Participated in client meetings regarding project requirements and progress. Worked with customer to specify new requirements as well as clarify existing ambiguous requirements.Developed standalone Java application to monitor various system and record operational data for future uses and analysis.Developed application framework capable of executing snippets/function of code, which provided the capability of the user to chain actions together in order to achieve their goals or requirements. Created a process for maintaining a development and production system for daily builds and testing. This critical system performed daily builds and ran j-unit test developed from project requirements. Assisted in the daily responsibility for the office management process. Determined necessary tools and equipment required by team to provide the best performance.