CTO
2013 - PRESENTGeomotiv- Designed and developed a Hadoop-based data processing subsystem which was capable of handling millions of daily events.
- Helped a client to refactor a DSP product (buyer-side in RTB environment) to be able to handle a larger number of incoming requests. Amazon cloud services were employed: AWS, RDS, and Kinesis.
- Implemented a SSP product based on the OpenRTB standard.
- Worked with Scala/Spark technology stack for solving machine-learning problems.
- Led team of experience engineers and participated in daily scrums with a client team.
Technologies: Java, Scala, Hadoop, SparkCTO
2010 - 2013Maygem- Developed a robust game server based on Scala/Actor technology handling up to 100,000 daily active users and 1,000 requests/second on a commodity server (8 CPU cores, 16 GB RAM).
- Implemented an integration with Facebook and other major regional social networks.
- Led an engineering team to build Flash-based social games.
- Ported Flash-based game to Android/iOS platforms using a C++ Cocos2d-x library.
Technologies: Java, Scala, Flash, C++Software Engineering Director
2006 - 2009Intetics Co.- Created a prototype and released a beta version of editorial calendar and management software. Later it turned into a very successful product.
- Developed and released several versions of an asset management system for ad agencies.
- Participated in the development of a ticket-booking system for the Arsenal stadium.
Technologies: Java, Spring, Hibernate, Wicket, GWT, SQL, OracleTeam Leader
2003 - 2006G2X- Participated in the development of the G2X: Agility line of products.
Technologies: Java, JSP, JasperReports, MS SQLServer, OracleTeam Leader/Senior Developer
2000 - 2003Intetics Co- Developed a real-estate desktop application.
- Handled all aspects of the development of a web site for a medical company.
- Developed a number of web sites.
Technologies: C++, Perl, MySQLSoftware Engineer
1995 - 2000CIT- Developed an enterprise document management and workflow system.
Technologies: C++, SQLWindows, SQLBase, Oracle
Vlad Liashkevich
Software Developer in San Jose, CA, United States
Member since February 18, 2016
Vlad is a software engineer with more than twenty years of experience. He has a degree in math so he really likes working on challenging, algorithmic problems. His main area of interest is designing and developing highly scalable, concurrent, distributed request handling, and data processing systems.
Vlad is now available for hire
Portfolio
- GeomotivJava, Scala, Hadoop, Spark
- MaygemJava, Scala, Flash, C++
- Intetics Co.Java, Spring, Hibernate, Wicket, GWT, SQL, Oracle
Experience
- Java 13 years
- Hadoop 3 years
- Scala 2 years
- Apache Spark 1 year
Availability
Part-time
Preferred Environment
Mac OS X, GitHub, IntelliJ IDEA
The most amazing...
...I made was 3D CAD software for structural engineering. It used the Finite Element Method to predict how a real-world structure would respond to external forces.
Employment
Experience
- Flowzone (Development)http://www.flowzone.com
A digital asset management tool with project management capabilities.
- Desk-Net (Development)http://www.desk-net.com
A cross-media newsroom management platform.
Skills
Languages
Java, SQL, Scala, C++, JavaScriptParadigms
Test-driven Development (TDD), Agile Software Development, Concurrent Programming, Extreme ProgrammingOther
Mixed RealityFrameworks
Hibernate, Apache Wicket, Spring, Hadoop, Cocos2d-x, GWT, Apache SparkPlatforms
Linux, Windows, Android, OracleStorage
Redis, PostgreSQL, MySQL
Education
- Bachelor's degree in Mathematics1994 - 1999Belarusian State University - Minsk, Belarus
