Alexander Sergeev Email and Phone Number

Secret project (startup within startup):Responsible for an iOS client of an experimental project (from scratch, Swift language, 3 iOS developers in the team).Tango iOS client:Implementing new featuresCode refactoringCode reviewBugfixesConducting technical interviews

My business unit in Mail.ru was named "Instant Messengers", we are working on the most popular IMs in Russia: Mail.ru Agent and ICQ for iOS platform.Our team consisted of 6 IOS developers product manager designer QA engineer.I also had a close contact with Mac OS X developers team cause we are sharing the same code base.The first version of our application had been released before I joined the team, so I have to deal with a lot of legacy code. The issue is that this code contains some nasty bugs. Cause of my experience of multithread programming and my C/C++ background, my main task is to solve all these concurrency and memory management issues.My main responsibilities were the refactoring of our program core in order to fix bugs, improve program architecture and make the core stable. I was also involved in a code review process which was used in our team.

I became a product manager in SUP Media cause I was thinking it would become a step forward in my experience of understanding the software development process.My responsibilities were to search for subcontractors for our mobile application projects, to describe tasks for them and write specifications and to control the process of their work and results.I was not disappointed - this position gave me an excellent experience, but not exactly in the area I wished.

I started as a backend C++ developer for Linux environment. I was working in a group of 5 programmers. Our tasks were to improve the speed, reliability and functionality of backend parts of a livejournal.com. My responsibilities were to develop the server applications on C++ for Linux (discuss the architecture, write code and unit tests, debug, write technical documentation), build binary packages (deb and rpm for Debian and RedHat Linux systems respectively) and help system administrators to deploy and support our software.iPhone/iPad developerMy employer offered me to try myself in iPhone programming and I accepted this offer. I joined the "Livejournal.com iPhone client application" project, more known as "LJ app". Our team included: 2 developers, product manager, designer, QA engineer.I learned Objective-C and basics of iPhone SDK. My main task was to develop an iPhone application according to specification and design.When the second programmer left the company and I left alone, I had to solve all technical issues, from software architecture issues, programming, debugging to making releases and iTunes Connect account maintenance.Note: Livejournal 2.0 iOS application is made from scratch. I have nothing to do with it.