Konstantin Yemelianov

Berufserfahrung von Konstantin Yemelianov

• Bis heute 6 Jahre und 11 Monate, seit Aug. 2017

  Senior JavaScript Engineer

  Lohika

  Developing frontend part of SPA application using React+Redux+Saga technologies. Implementing charts with D3 Creating unit tests in AVA and Jest. Writing code according customer requirements and linter rules. Code reviewing. Tools and Technologies: ES6, React, Redux, Saga, SASS, D3, Webpack, AVA, Airbnb eslinter, NodeJS, Express, Sequelize, Babel, Docker, MySQL,, JavaScript, NodeJS

• 9 Monate, Dez. 2016 - Aug. 2017

  Frontend Javascript Developer

  RingCentral

  Designing and developing full client web SPA application in two approaches: • version 1 with React + Reflux + Stylus + Foundation • version 2 with React + Redux + SASS + Bootstrap JavaScript, ES6, Webpack, React/Redux/Reflux, Stylus, SCSS, Handlebars, HTML5, XHTML Strict, Mercurial, Jest, Karma

• 1 Jahr und 6 Monate, Juli 2015 - Dez. 2016

  Business Solution Developer

  PepsiCo, Ukraine

  Fullstack development - Creating internal Web portal to manage user access requests to internal systems. React, Redux, Bootstrap, Node, Webpack, Mocha, Istanbul, git, REST, OData - Creating monitoring system for analyze exchange queue between distributed Legacy ERP system. MS SQL, T-SQL, stored procedures, triggers, Node - Supporting Migration databases from Mykolaiv to London datacenter with changing infrastructure (3 physical servers to 9 virtual) MS SQL, T-SQL

• 7 Jahre und 4 Monate, Apr. 2008 - Juli 2015

  FullStack Application developer

  Agrofusion

  Designing and developing wide range of projects: - System for monitoring growing agriculture cultures on the fields. Android, Java, ASP.Net, C#, JavaScript, JQuery, MS SQL, SOAP - System for planning routes and tasks for trucks during a harvesting period, APEX, JavaScript, AJAX, Google map API, REST, SOAP, PL-SQL - Solution for employee time accounting in each market, Qt C++, PostgreSQL, MS SQL

• 11 Monate, Juni 2006 - Apr. 2007

  Application Developer

  Russian Aluminium, Friguia, Guinea

  Integration Legacy system on MS SQL with IRIS (accounting program) Frontend develop legacy systems for procurement & budget departments

• 5 Jahre und 4 Monate, März 2001 - Juni 2006

  Application Developer

  Sandora, Mykolayiv, Ukraine

  Frontend developing Legacy system. 1C, MS SQL 2000, 2005, T-SQL, Query Analyzer Development reporting system for direct access to data into Legacy system database. Managing MS SQL: monitoring performance, improve query, managing indexes