Jossif Tomash Email & Phone Number

Stockholm, Sweden

Working as Release Manager at Truecaller - Caller ID & Spam Blocking app. Operating weekly releases for more than 175 daily active users for both: Android and iOS platforms. Responsible for running Alpha, Beta and Production tracks, branching, testing and monitoring app metrics. Performing release sign-off syncing with Product/Development/Quality Assurance/Marketing. Building and setting up tools for release anomaly detection and alerting. Planning and executing app features rollouts and A/B tests. Developing internal release dashboards and continuous delivery pipelines.Managing app localization for over 45 languages.Mastering in escalation management.Team goals plannings and follow-upTruecaller is one of the fastest growing tech companies in the world. We have over 250 million users around the world with the strongest presence in South Asia, Middle East and North Africa. Truecaller is backed by some of the most prominent investors in the world such as Sequoia Capital, Atomico, and Kleiner Perkins Caufield & Byers.

Stockholm, Sweden

Working as a front-end developer for Skype's sister group messaging app - GroupMe. (https://web.groupme.com)The rich web app is written in AngularJS. I'm driving this project by adding features, refactoring code and covering it with tests.Keywords:JavaScript, AngularJS, HTML, Jasmine, Karma, Heroku, HTML5, Restfull API, Test Coverage, BugSnag, CSS, Built CI automation and deployment in Visual Studio Team Services

Stockholm, Sweden

- Central point of contact for engineering status of release execution- Release Planning based on priorities defined with the Product Owner- Delivering against the Release Plan running agile methodologies: SCRUM/KANBAN- Regularly report status to relevant stakeholders- Leading the launch preparations by coordinating the activities of all involved parties such as Customer Service, PR, Marketing, Backend, QE, Localization- Involved in product testing, including release/daily/automation and outsource testing- Running internal and external dogfood program, collecting data and running feature A/B experiments- Running crash and bug analytics- Submitting release to Apple, maintaining release internal and external documentation and communication. Release automation. CI and CD- Administrating iTunes Development and Submission accounts- Monitoring post-release metrics and KPIs: number of downloads/active users/crashes/reviews/calls/call minutes and other key business metrics- Running A/B experiments internally and in production and preparing relevant analysis based on collected data and user reviews- Running gradual rollouts to ensure quality metrics are met- Escalating live incidents and participating in investigation by providing relevant information- Reacting to the market by preparing hotfix releases- Propagating data driven releases, data mining and testing in production- Act as SCRUM master for the Engineering team- Cross team coordination, including risk management and working with dependencies- Maintaining relationships across a peer organization to ensure smooth delivery of releases with other dependent components of the Skype Client- Knowledge about build systems and continuous integration, including automatically building/testing and reporting.- Communication with Apple Technical and Business teams- Atlassian tools: Confluence, JIRA, Jenkins, TeamCity, Crashalytics, Mixpanel- SQL, Hive, Git, PostgreSQL- Scripting in Ruby and Bash

Tallinn, Estonia

2008-2011 – Software Engineer in Test- Testing- Test Management- Test Automation- Outsource Vendor Management- NFR: data traffic consumption, battery life performance, network traffic analysis, application startup time- Spec review, enabled continuous static analysis, code coverage.- Setup crash monitoring and contributed to crash reduction- Automated user review aggregation and parsing- Modelled security threads and was involved in architectural overview meetings- Planned and executed piloting and gradual rollout of releasesiPhone, iPad, development, quality assurance, functional, regression, acceptance, scrum, agile, jira, automation, iOS, Xcode, Developer Tools, engineering, objective c, cocoa, iphone frameworks, profiling, UIAutomation, Fonemonkey, python, performance and load tests, continuous integration, quickbuild, ivy, ant, ruby, jenkins, teamcityExperience in Integration, System, Regression, Stress, Usability, Beta testing.

Ma, Management Of Information Technology

Activities and Societies: agile, IT Government, scrum, lean development, project management, IT security, ITIL, CobIT,

Ba, Mathematics And Computer Science

Activities and Societies: Computer Science, java programming, information systems, power designer, adobe flash, action script