tumakha

29 reviews

@tumakha

London, United Kingdom

Member since May 20, 2014

4 Recommendations

tumakha

Online Offline

Senior Scala /Java Engineer

I am a Senior Scala /Java Developer with 10+ years of experience in architecture design and development with strong problem solving skills. Self-motivated and able to work independently without supervision. Strong self-organization and time-management skills. KEY SKILLS AND COMPETENCIES ● Java Back-End: Java 8/11, Spring Boot/Data/MVC/Cloud, JPA, Kafka, Gradle, Maven ● Scala Back-End: Scala, Spark, Akka (Cluster, Streams, Http), Play, Cats, Slick, SBT ● Databases: MySQL, Oracle, MongoDB, Cassandra ● Testing: JUnit, DbUnit, JsonUnit, XMLUnit, Mockito, TestNG, REST Assured, Selenium

$50 USD/hr

29 reviews

5.9

97%Jobs Completed
97%On Budget
100%On Time
15%Repeat Hire Rate

Portfolio Items

Recent Reviews

Project for Yuriy T. -- 3 €500.00 EUR
“That was the third project Yuriy handled for me. Perfect results. Clean code. Very professional. I can recommend him without restrictions at any time.”
Timo W. 3 years ago
Project for Yuriy T. -- 2 €1300.00 EUR
“I hired Yuriy for the second time now. Did not regret. Excellent work! Thanks!”
Timo W. 3 years ago
Bring up kubernetes infra needed for dl4j model training $250.00 USD
“excellent technical skills and on-time delivery.”
Sid V. 3 years ago
Java: Find fastest solution for low latency HTTP REST POST/DELETE requests €500.00 EUR
“Very nice and above all professional contact. Excellent work. Anytime again!”
Timo W. 3 years ago
Create some Java & Scala test questions to assess data engineers skills $1000.00 AUD
“Yuriy did a good job. We will work together again in the future most likely.”
Tim F. 3 years ago
Project for Yuri - adapt previous work to new OPC $600.00 USD
“Yuri is allways professionnal on our projects. A very reliable freelancer!”
Sens Of Life S. 6 years ago

Experience

Senior Scala/Java Software Engineer

Asset Control Aug 2019 - Feb 2020 (6 months)

Scala, Java, AWS, Apache Spark, Akka, Akka Http, Play, Kafka, Cassandra

Senior Java Software Engineer

Tantalum Corporation Apr 2018 - Jun 2019 (1 year)

Telematics Platform development. Java 8, Microservices, AWS, Spring Boot, Spring Cloud, Consul, Marathon, Kafka, Cassandra

Scala Developer

EileanTech Ltd Jul 2017 - Mar 2018 (8 months)

Implemented Archipelago framework integration components for Database, JMS, HTTP, JSON, XML and sort/aggregate/transform components. Skills: Scala, Akka, Slick, scalatest, SBT, Git, JMS, JSON, XML

Software Engineer

10x Banking (London, UK) Feb 2017 - Jun 2017 (4 months)

Java 8, Maven, AWS, Amazon SQS, DynamoDB, Activiti workflow

Senior Java/Scala Developer

Freelance Feb 2014 - Jan 2017 (2 years)

Skills: Java, Maven, Camel, Spring, JPA, Spring Boot/Data/MVC, JIRA plugin development, jQuery, Git. Scala, Akka, SBT, Play framework.

Senior Java Developer

Epam Systems (Kyiv, Ukraine) Sep 2013 - Jan 2014 (4 months)

Skills: Maven, Spring, Hibernate, JMS, XML, XSLT, JUnit, Java Implemented new features and data types for bank trades processing. Improved testing coverage and continuous integration system.

Senior Java Developer

Ciklum (Kyiv, Ukraine) Jan 2012 - May 2013 (1 year)

Skills: Mercurial, Maven, Oracle, Hibernate, Spring, JPA, REST, ActiveMQ, Tapestry, Java Implemented beta version of Playtech ProTrack internal solution. Solved conflicts with integration with existing systems.

Senior Java Developer

Thomson Reuters (Kyiv, Ukraine) Dec 2007 - Jan 2012 (4 years)

Thomson Reuters December 2007 - January 2012, Kyiv, Ukraine Skills: Hibernate, JPA, Spring, Spring MVC, Web Services, Maven, JUnit, Java Implemented new features for Thomson Reuters commercial portals and internal services. Implemented universal cross-project authorisation plugin. Increased testing coverage and code quality.

Senior Java Developer

Softline (Kyiv, Ukraine) Dec 2006 - Dec 2007 (1 year)

Skills: Java, J2EE, MULE ESB, Web Services, JUnit, Cactus, Ant Developed web-application for managing customer profiles, with modules for import/ export profiles data in XML by HTTPS, FTP [login to view URL]

Java Developer

Luxoft (Kyiv, Ukraine) Feb 2006 - Dec 2006 (10 months)

Skills: Java, J2EE, Servlets, JSP, Struts, Oracle PL/SQL, Oracle CM SDK Development of web-application. Designing database Web-application for internal use on ChNPP. It is intended for work with electronic archive of documents, interaction with the integrated automated monitoring system of object "Shelter", generation of reports, management other data.

PHP Developer

MitriDAT (Kyiv, Ukraine) Mar 2005 - Dec 2005 (9 months)

Skills: PHP, DHTML, MySQL, XML, XSL, UML, OOD SMS Portal for bulk message sending. The postponed sending, integration with client sites. [login to view URL]

Education

Masters degree, Computer Technologies Faculty

Ternopil State 'Ivan Pul'uj' Technical University, Ukraine 1997 - 2002 (5 years)

Qualifications

Big Data Analysis with Scala and Spark (2017)

Coursera

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Functional Program Design in Scala (2016)

Coursera

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Parallel programming (2016)

Coursera

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Deep Learning Specialization (2020)

Coursera

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Lightbend Akka Streams for Scala Professional (2020)

Lightbend, Inc.

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Lightbend Akka Cluster - Sharding (Scala) (2020)

Lightbend, Inc.

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Certifications

SQL Level 1
95%
Java Level 1
80%
Java Level 2
77%
UK English 1
77%

Verifications

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My Top Skills

Java 20
Scala 7
J2EE 2
MySQL 2
JSP 1
HTML 1
Bitcoin 1

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