Ruby and Rails, Hotwire, React.js/Next.js, PostgreSQL, Elasticsearch/Kibana, Sidekiq, Redis, Docker, bash

Ruby and RailsReact.js Next.jsLinux (Centos, Debian)DockerWeb-servers (Nginx/Openresty)Database administration (Postgresql/Mysql/Redis)Perfomance optimization and code refactoringAdaptive HTML markupREST API developmentSEOhttps://github.com/isheninp

full stack web-development and supportethernet, tcp/ip etccentos, debian, freeBSD, microsoftnginx/openrestyruby, php, phyton, javascriptreact-js, ruby on rails, sinatra, 1c-bitrix, opencart, drupalpostgresql, mysql/mariaDB, redis, mongoDbHTML5, css3/scss, bootstrap, responsive/adaptive markupIT consulting, web and seo audit, IT securitygit, jira, redmine, zabbix

Managenent of IT department, outsourcing ITSystem administration (Microsoft, Linux, FreeBSD)Mail server administrationDesign, set up and support of corporate openVPN network (about 500 pc, 50 servers)Set up of virtualization of business application(Citrix)Development, installation and support of special gas stations / retail shops software and integration between IT systems and ERPImplementation of non-cash payments system in gas station network based on the smart cards ("PetrolPlus")Integration with JSC Rosneft IT systems: AIS TPS, SAP R/3Support information securitySoftware development: MS Access/Excel, .NET Development of report tools based on T-SQL

Development of bank of digital cadastral maps of the Arkhangelsk region - the joint project with National land service of SwedenTransfer of cartographical and attributive information from paper to digital form by manual and semi-automatic modes (scanning, vectorization and binding of information)Development of library of cartographical conventional signs for AutoKa-PC GIS-softwareGIS MapInfo tools development Work with ArcView/ArcInfo