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Denys Kazachenko
+380633342999
Profile
Software Engineer with more than 10 years of IT experience in software developing and related areas.
Projects were performed using JAVA, WebServices, Frameworks. Good Knowledge in pattern matching
algorithms. Clear understanding Object Oriented Programming & Design (OOPS) Concepts.
Knowledge in Design & Developing application under Linux/ C and C++/Java/Golang etc. Developed
Internet/Intranet and Client/Server Applications. Experienced in developing in AWS.
Experience in various fields and platform includes System analysis, design, application (Inter/Intranet)
development and testing. Experience in Design and Development of n-tier Internet, Intranet and ClientServer application.
Confident in providing technical solutions, and ideas.
Reliable and enterprising, able to work independently as well as work in a team. Worked in international
companies with foreign customers
Experience
Internet Security
Protection tool for website, web servers and web applications against the increasing sophistication of
hacker threats. A complete website security solution provides early detection, immediate remediation
and proactive preventive measures.
Products:
Cure machine - remove malware from web sites
CMS scanner - detect cms vulnerabilities
Reputation Scanner - check security, detect phishing
PCI scanner - validate PCI security standards
Role: Senior developer
Languages : Java/Golang
Tools: AWS(lambda sqs,sns, spots), Elasticsearch, Spring, MQ broker, dockers, RDBMS.
Responsibilities: Programming, testing, performance enhancement
European/American System of Central Banks Workflow System.
Payment processing gateway to merchants, allowing them to accept credit and debit cards, along with other
payment types (this role is known as a merchant acquirer). They provide these services both directly to
merchants, and indirectly through other financial organizations.
Products:
Payment Gateway: Implemented protocols ISO8583 / bertlv for Globalpayments, Firstdata, Six,
Omnipay, Amex (full transaction flow from insert card to print receipt) etc.
Role: Senior developer
Languages: Java
Tools:J2EE, jmx/jms jsf, jspx
Frameworks: Spring MVC / Security / Themes /
DB: Oracle / postgresql
ES: JBoss
Protocols ISO8583 / bertlv / etc
Responsibilities: architectural design, programming.
Gaming platforms (gambling)
This platform has a load capacity of 100 to 200, 000K costumer at once. Since people constantly play this
game, updates, adding new features and/ or rules and other things that can improve the gaming
experience are necessary.
Role: Senior developer
Responsibilities: architectural design, programming.
Languages: JAVA.
Frameworks: JSF,Spring, Ice Faces.
Server Side Technologies: EJB, Java Servlets, JSP, JTA, JPA, JMS.
RDBMS: Oracle, MySQL.
Social network
Project is created to assist the promotion of its users from different countries, helping them to
communicate with each other. The following principles, as fundamentals of rights and responsibilities for
users of this site, allow the team to reach all these goals”.
Role: Senior developer
Tools: J2EE
Frameworks: GWT(MVP4g) , GAE, Spring.
Web Server: GAE, Tomcat.
Responsibilities: architectural design, programming.
KPN Web ( telecommunications company)
A web service group with a multitask capacity functions, including end-user geo positioning, tracking,
daily itinerary, etc.
Technologies: JSP, Java Servlets, JAXP, JAXB, SOAP, WSDL.
Role: Senior Developer
Responsibilities: architectural design, programming, testing, performance enhancement.
“Dutch railways” project
“Personnel management software. Building Database with clustering algorithm (core PostGis).
Developing web services capable of cellid data-to-geographic position conversion and Google
integration”.
Responsibilities: architectural design, programming , testing.
Tools: j2EE, GPS, GSM, mobile CellId, GPRS, JSP, Java Servlets, JAXP, JAXB, Hibernate,JME, SOAP/REST,
WSDL
App Server: Jboss.
Database: Mysql, PostgreSQL, PostGis.
Automobile navigation system
Responsibilities: developing, testing.
Tools: C/C++, Linux.
WORK EXPERIENCE
01/2018 – 12/2019 NurD
01/2014 – 01/2018 Comodo
03/2014 – 05/2015 senturia
01/2013 – 03/2014 unipaygateway
02/2011 – 11/2012 sigmaukraine
02/2008 – 12/2011 Hys-enterprise
02/2000 – 06/2007 Comodo
Education
05/2000 State Telecommunications Academy, Master's degree
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