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My work coincides with my hobby, and I really love my hobby, so when I develop software I give myself completely to work. 

Donetsk State Institute of Artificial Intelligence

Software Architect, Team-Lead, Tech-Lead, CTO, Software Development, Software Design, Database Design, Business Logic Design, Software Engineering.

Ihor Hryshkov

Leeloo.ai

Working on the big platform to sales and marketing, analyzing technical side, upgrading technical side, researching the new technical solutions, creating technical plan for integrating of new features of the product, building the new team. Management and studying of IT and development teams. Meetings with sales, business owner, customer support, accountant, CFO and CEO to analyze their problems and searching solutions in the product.

Київ, Україна, 02000

Developer back-end crypto(blockchain)-processing system, data and project architect. Use technologies Node.JS(Sequelize, Express, REST, Rabbit etc), PostgresDB. Create data models, deployment diagrams, REST API and other docs. Develop base codebase and micro-services pattern for other team developers. Create crypto payment system based on micro-services architecture etc.

CEX.IO

Architect, Team-lead, JS back-end developer

Developer back-end crypto(blockchain)-processing system. Use technologies Node.JS(Sequelize, RPC etc), PostgresDB, Mongo, integration to system new providers for crypto-coins, add new state system for callback services, integration new staff to project, team-building, integration new technologies to old system, make little bit reporting system, education old and new staff.

Team-Lead, JS back-end developer

Developer back-end crypto(blockchain)-processing system. Use technologies Node.JS(Sequelize, RPC etc), PostgresDB, Mongo, add new clearing system and fix little bit problem in current version back-end processing.

JS back-end developer

Architect system "WebPOS"(EasyPay), Tech-Lead system "WebPOS"(EasyPay), back-end developer "WebPOS" (EasyPay) payment system. Use technologies Node.JS(Sequelize, Express and other), PostgresDB, REST API(JSON), RabbitMQ. Create micro-services for connect to main back-end project EasyPay.

EasyPay Indonesia

Architect, Tech-Lead, Back-end developer

Architect system "E-Wallet"(EasyPay), Tech-Lead system "E-Wallet"(EasyPay), full-stack developer "E-Wallet" (EasyPay) payment system. Use technologies Node.JS(Sequelize, Express and other), PostgresDB, REST API(JSON), Kafka, Swift(and some frameworks), Android SDK(and some frameworks). Create micro-service for connect to main back-end project EasyPay.

Architect, Tech-Lead, DevOps, Full-Stack developer

Developer back-end payment system. Use technologies  NodeJS(Sequelize, Express and other), PostgresDB, REST API(JSON), Kafka, micro-services architecture based on Docker.

Architect, Team-Lead, NodeJS developer

Portal journalistic investigations "E-Data Club". Develop information portal project. Use technologies: J2EE(Spring-Boot), Hibernate, MongoDB, Postgres, REST API(JSON), Jersey, Solr, RabbitMQ, OAuth2 and Tomcat with Jenkins.

iTTeam Ltd

Architect, Team-lead, Java developer, DB designer

Develop E-Commerce and Market Place business project and Social Network project. Use technologies: J2EE(Spring-Boot, JMS), Hibernate, MongoDB, Postgres, REST(JSON), Jersey, Solr, RabbitMQ, OAuth2 and Tomcat with Jenkins.

Create card game systems using technologies Objective-C, Java, J2EE, JSON, JPA, Android SDK, JavaFX, iOS SDK, CQRS, Tomcat, MySQL. Create task for Windows Phone Developer(C#), Web Developer(PHP,JavaScript) and Designer. Project on paused.

BBGame

Team-lead, Architect, Full-stack developer

Create back-end, back-office and design database in project "Live Night 365" and using for this technologies J2EE, JSON, Hibernate, Spring and Tomcat. Team-lead for iOS, Android and J2EE developer in old project "Skill On Sports". Support project "platform" using Scala.

Arbulus

Team-lead, Java back-end developer, DB designer

Add new future and fix legacy code bugs in Web Services using technologies J2EE, JSON, Hibernate, Spring and using Tomcat, Add new future and fix legacy code bugs iOS client and develop new Android client. Team-lead for iOS, Android and java back-end developers. Deploy on production project "Skill On Sports" and supporting.

Team-lead, Full-stack developer, DB designer

Create Web Services using technologies J2EE, JSON, JPA, and using TomEE, MySQL for web site, create task for Web Developer and create task for Designer in Redmine.

prozora-kraina.org

Team-lead, Java back-end developer, DB designer 

Create Web Services using technologies J2EE, JSON, JPA, and using TomEE and DB MySQL for system automatically petrol filling stations, the system handles requests from controllers, stored in the database and allows client-side monitor and control various processes petrol filling station.

Shelf

Java back-end developer, DB designer

The project to purchase tickets for all type of transport with Android, iOS and Windows Phone platforms. The project participated as Team Leader: Graphics Design and develop Windows Phone, Developer: Android and iOS.


Tagway

Team-lead, Android, iOS developer

Develop a program to photograph and modify images, add messages,
and send a follow-on social network Twitter, Facebook and E-mail(Servlet),
for the J2ME platform used LWUIT Framework,
a version for Android applied Android API 1.6-2.1.

Remote job

Java mobile, Java back-end and Android developer

Development of mobile booklet "Poster", using LWUIT Framework, on the platform J2ME.

BlueStream

Java mobile developer

Working out of the interface of interaction between the Manager and the monitoring system of calls in IP a telephony, at use Java web technologies.

Java back-end developer

Working out mobile software for a help to engineers of mobile communication stations.

DGCell

Working out mobile software for sending and reception SMS with using specification JSR-120.

Working out of the mobile client (J2ME), and a plug-in for server OpenFire (J2SE) for mobile taxi system.

Java mobile and plugin developer

Updating a kernel of a network server in game Line Age 2 Gracia.

Java desktop developer

Client-server application that controlling and administration IP traffic.

Working out of the mobile client for social network.


SmallSystems

Afishka

Architect and development of pattern recognition system with further image output on a projector.

Night club

Java developer, software architect

Architecture and development of client/server application, J2SE server(back-end and back-office for taxi operators), J2ME client (front-end for taxi drivers).

Limuzin taxi

Java developer, software architect, db designer

Client part development that showing weather and other information in tray using java swing, and parsing XML from API.

Conturov.NET

Java developer

Architecture and development of client/server application for using in mobile technologies.

Developing programs for Call Center, development of statistics system, development interface and mail sending/receiving protocol, development of huge arrays sorting system, codec G.729 codec, SIP protocol development, RTP for sending/receiving data in the network, etc (J2SE)

Smile Soft

Games, Client side of system serving clients in big food companies.

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