Image de profil de pkotlyarov1988
@pkotlyarov1988
Drapeau de Russian Federation Yekaterinburg, Russian Federation
Membre depuis le 31 mars 2018
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pkotlyarov1988

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I'm professional developer and lead with huge experience in development complex, critical, distributed high loaded systems. Primarily for government in energetic, industry and customs fields. Most of this systems working country-wide. I prefer challenging projects, that you, as my client, and I can be proud. My main experience linked with Java back end development, but also I worked with C++, Scala and Python. Besides I can make business UI with popular frameworks (ZK, GWT, Tapestry, Qt). At current time I specializing on algorithmic and complex server side development, Including networking, protocols, effective API, distributed systems, real time data handling, store, visualisation and so on. If you need something of this, you are in the right place - just contact me and it will be done.
$30 USD/hr
7 commentaires
4.1
  • 100%Travaux complétés
  • 100%Selon le budget
  • 100%Dans les temps
  • 33%Taux de Réembauche

Portfolio

Avis récents

  • image de Chaddha14 Project for Pavel K. -- 2 £180.00 GBP

    “Pavel is hard working, he delivers complex solutions and worked with me throughout the project.”

  • image de rsv4a16 Project for Pavel K. -- 2 $200.00 AUD

    “As usual, thankyou!”

  • image de rsv4a16 Project for Pavel K. $220.00 AUD

    “Fantastic intergration work from Pavel. Will be using him for my subsequent projects - knowledgeable and dedicated.”

  • image de qrb912 RabbitMQ Health and utilization check $200.00 USD

    “I am very new to coding. He walked me through the spots I had trouble understanding. The is very professional and skilled.”

  • image de Chaddha14 IT energy monitoring system £220.00 GBP

    “Really helpful knowledgeable guy. I enjoyed working with him and he delivered the project as per the specifications.”

  • image de Ben W. Experts on semaphore in C $15.00 CAD

    “He is very professional and answers whatever question you have. Definitely will work with him again.”

Expérience

Leading Java developer

Jul 2014

Development APDC and CloudHistorian products for power stations and factories, working country-wide 24/7/365 in soft real time. It handle and analyse big data telemetry and management devices - Added plug-ins in a 5 years old product - Made C37.117, IEC104 and custom inter-node protocols - Made Thrift and REST API - Added PLAIN, Digest-MD5, NTLM and SASL authentication Java 8, Spring, Hibernate, ZK, Cassandra, Netty, ZMQ, JMH, Mockito C++11, Qt/Widgets, Boost, CMake, C, Python 3

Leading Java developer

Nov 2013 - Jun 2014 (7 months)

Working on accounting system for education ([login to view URL]). Working on a portal for obtaining research and development grants ([login to view URL]). Scala 2.10, Guice, Play 2.1, Postgresql 9, JQuery, JavaScript, Bootstrap 2, Jenkins, Jira, Confluence, Linux.

Leading Java developer

Feb 2013 - Oct 2013 (8 months)

Developed a monitoring customs process system for countries-member of Eurasian Economic Community. - First version implemented in very short terms. - Web-client and server totally separated via REST API for testing purposes. - Made general domain for client and server with common validation rules. Java 7, Spring IoC, Spring MVC, Spring WS, Eclipse MOXy, JAXB 2, Jackson, JPA 2, Oracle DB 10g, GWT 2.5.1 (Activity and Places, UiBinder), GXT, Gin, Maven 2, Git, WebSphere MQ 7, Tomcat, JUnit.

Java developer

Jun 2011 - Jan 2013 (1 year)

Working on ASKTT-2. It is a distributed, asynchronous document exchange for controlling customs transfer of goods. Some technical details: 10+ data centers, 200+ billions records in each document table, 1+ terabyte OLTP database, hundreds of thousands documents each day on every DC, thousands of simultaneously working users on each DC. Java 6, EJB, BPMN, Toplink 10, Oracle 10g, JMS, Castor, WebSphere MQ 6, OAS 10, ETL/Warehouse, GWT SOAP, XML, XPath, WS-Basic, WS-Addressing, Maven 2, SVN

Java developer

Nov 2010 - May 2011 (6 months)

Working on CRM/ERP product for hospitals. Java, Spring, Hibernate, Tapestry, Maven, Linux, SVN

Éducation

Master of Financial Math

2005 - 2010 (5 years)

Bachelor of Software engineering

2010 - 2014 (4 years)

Qualifications

Functional Programming Principles in Scala with distinction (2012)

coursera.org

This advanced undergraduate programming course covers the principles of functional programming using Scala, including the use of functions as values, recursion, immutability, pattern matching, higher-order functions and collections, and lazy evaluation.

Principles of Reactive Programming with distinction (2014)

coursera.org

This advanced undergraduate programming course covers the principles of functional programming using Scala, including the use of functions as values, recursion, immutability, pattern matching, higher-order functions and collections, and lazy evaluation.

Programming Languages (2014)

coursera.org

This advanced undergraduate programming course covers the principles of functional programming using Scala, including the use of functions as values, recursion, immutability, pattern matching, higher-order functions and collections, and lazy evaluation.

Programming Mobile Applications for Android Handheld Systems (2014)

coursera.org

This advanced undergraduate course covers the fundamental programming principles, tools and application programming interfaces used to develop handheld applications using the Android Platform.

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