Konstantin Uvarin

Berufserfahrung von Konstantin Uvarin

• 4 Jahre und 3 Monate, Aug. 2017 - Okt. 2021

  Software Engineer

  Cloudbeds

  [perl, mysql, redis, nodejs] * improved test suite run time from ~30minutes to ~4minutes; * made test fixtures that helped the team greatly increase the test coverage; * implemented JSON-based API that allowed to replace old iframe-based flow; * implemented user error scoring system to improve our scores with partners (most prominently booking.com); * migrated redis database to a new structure, without service interruption; * rewrote queue handling daemons to increase responsiveness and throughput.

• 3 Jahre, Sep. 2013 - Aug. 2016

  Software Engineer

  Ticketmaster

  [perl, apache, mysql, javascript] Adding features & bug fixes to a large, convoluted, old code base. * Worked on security features such as CSRF prevention and fighting credentials exposure; * During 2015, burnt through a several years' worth of backlog on behalf of UK/IE and AU/NZ offices.

• 2 Jahre und 6 Monate, Apr. 2011 - Sep. 2013

  Software Engineer

  SMS Online

  * rewrote an SMS daemon from C++ into Perl with no performance loss, using AnyEvent and Redis; * created a tool to apply rules to messages based on country, mobile provider, priority, and more; * bug fixes & small improvements in a micropayment gateway app.

• 1 Jahr und 1 Monat, März 2010 - März 2011

  Junior Software Engineer

  Agava

  * Supported colocation billing application [Perl, JS]; * Created a load distribution / queuing component that greatly improved maillist performance [Perl]; * Removed runtime warnings from a mailing list app [Perl].

• 7 Monate, Apr. 2008 - Okt. 2008

  Junior Software Engineer

  Acronis

  * Added Italian version to an internal training app [perl]; * Minor features and bug fixes for company's intranet [perl, mysql, mason].

• 2 Jahre, Sep. 2005 - Aug. 2007

  Technical Support Engineer

  jNetX (now Amdocs)

  jNetX (now Amdocs) produced a framework for custom applications for use in mobile networks.  * assisted product certification for use in MTS cellular network; * assisted British Telecom integration; * wrote Java code examples for customers (no production code).