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Konstantin Kulagin

Sr. Java developer @ Sysomos

Sr. Java developer at Sysomos

Toronto, Canada Area

Ranked #1,353 out of 27,060 for Sr. Java developer in United States

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Konstantin Kulagin's Email Addresses & Phone Numbers

Konstantin Kulagin's Work Experience


Sr. Java developer

August 2014 to Present

Toronto, Canada Area


Sr Java Developer

June 2013 to August 2014

Toronto, Canada Area

Philadelphia Insurance Companies / Virtuace

Senior Java developer

March 2012 to March 2013


Konstantin Kulagin's Education

Institute for Low Temperature Physics and Engineering of the National Academy of Science of Ukraine

2000 to 2003

Harkivs'kij Nacional'nij Universitet im. V.N. Karazina

Master's degree Informatics & Mathematics

1995 to 2000

Kharkiv National University for Karazin

Master of science Mathematics

1995 to 2000

Konstantin Kulagin's Professional Skills Radar Chart

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Konstantin Kulagin's Estimated Salary Range

About Konstantin Kulagin's Current Company


Spring Boot, Java 8, OpenHFT, REST, Hibernate, MySQL, Amazon EC2, Kafka, Docker, ELK

Frequently Asked Questions about Konstantin Kulagin

What company does Konstantin Kulagin work for?

Konstantin Kulagin works for Sysomos

What is Konstantin Kulagin's role at Sysomos?

Konstantin Kulagin is Sr. Java developer

What is Konstantin Kulagin's personal email address?

Konstantin Kulagin's personal email address is k****[email protected]

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Konstantin Kulagin's business email addresses are not available

What is Konstantin Kulagin's Phone Number?

Konstantin Kulagin's phone (416) ***-*297

What industry does Konstantin Kulagin work in?

Konstantin Kulagin works in the Computer Software industry.

Who are Konstantin Kulagin's colleagues?

Konstantin Kulagin's colleagues are Daniel Caldwell, Norris Francis, Koushik Pal, Jim Thomas, Kendrick Lin, Omer Aziz, PENG, CHRP, Anne-Sophie- Sa, Heather Satterfield, Robert Flek, and Valerie Grandis

About Konstantin Kulagin

📖 Summary

Objectives: Work on real big data application development/update/support. Interesting in utilizing modern technologies such as in memory grids like Apache Ignite, Hazelcast, gemfire as well as Spark, Hadoop, HBase, Couchbase for real time streaming data processing and big data processing. I am a problem solver with an ability to effectively investigate complex business needs and design software to address these needs. I have acted as a senior level consultant with executives representing many internationally recognized brands such as the Philadelphia Insurance Company, jBilling and Powersteering Software. I have international experience working for companies based in Canada, the United States and Ukraine. My background as a senior Java/J2EE Developer with more than 14 years of experience developing large-scale distributed enterprise applications using Core Java/J2EE allows me to diagnose strengths and weaknesses of a client’s current systems. I have extensive expertise in developing Internet/Intranet applications and Client Server Applications using Java. I am able to quickly adapt and understand various business models and can propose solutions in a wide variety of industries.Sr. Java developer @ Spring Boot, Java 8, OpenHFT, REST, Hibernate, MySQL, Amazon EC2, Kafka, Docker, ELK From August 2014 to Present (1 year 3 months) Toronto, Canada AreaSr Java Developer @ Software and downloadable software used to analyze and track consumer behavior and consumer trends; software and downloadable software used to provide strategy and insight relating to advertising promotion and marketing through the understanding and predicting of consumer behavior and actions and market trends My responsibilities included: • Visual tool for data management design and implementation using JSF • Data cache with automatic update design and implementation • Kafka messaging system setup and client design and implementation • LabelMe application design and implementation using Spring MVC, Hibernate, Amazon SNS • Data pipelines enhancements, with HBase, Mongo, Facebook API From June 2013 to August 2014 (1 year 3 months) Toronto, Canada AreaSenior Java developer @ RapidSure is an innovative policy administration system that was designed to help P&C carriers meet critical business goals by providing a fully modernized solution with robust functionality. Supporting open standards, RapidSure provides the tools and capabilities that are needed by carriers to quickly respond to changing business needs. Built from the ground up with modern technologies such as Java and Service Oriented Architecture (SOA), RapidSure enables carriers to modernize their core systems in order to gain true competitive advantage. My responsibilities included: • Implementation of new daily-based batch processes for business operations such as renewals, notifications, non-payment cancellations and reinstatements. System users were able to avoid costly time delays by reducing the amount of routine work that was necessary, allowing them to better concentrate on their business goals • Making policies batch processing run in parallel in order to decrease night processing time for policies by 40 %. In addition, moving batches processing to a separate server accessible via remote calls enabled policies batch processing on daily basis instead of nightly builds • My team was involved in the process of migrating the project from Ant to Maven, in so doing we were able to improve project structure, making modules dependency management understandable and manageable and improve processes related to assembly and deployment • I successfully refactored the system charged with handling policy coverages processing allowing processing time for the addition of new coverages and modifying existing ones to be noticeably decreased • Maintenance and support of old functionality From March 2012 to March 2013 (1 year 1 month) KharkovJava/Grails developer @ jBilling is a robust, secure, open source alternative for enterprise billing. My role in this project was to develop new features, in addition to providing client support. I worked on both client side and server side. In addition to the core system customizations, I was responsible for supporting and negotiating directly with Australian clients throughout the entire development life cycle, including negotiating performance negotiations, supporting performing negotiations with a client, translating client requirements into business specifications and implementing those. I was intrinsically involved with the implementation of report, invoices generation logic, view and data processing changes. From October 2011 to January 2012 (4 months) Senior developer/Manager @ is end-to-end Web-based service with social network structure and strong multimedia trend focusing on online photo enhancements. With Panraven, people have complete control over who can view their personal information and view and/or use their media content. Panraven members can maintain privacy settings uniquely for each media file and story by choosing from several different levels of sharing. Media content can be combined into stories, which can be shared in a similar way. In addition to sharing your media and stories, members can order hard-bound printed versions of stories. As a R&D team we had quite big amount of ‘unusual’ requests from a customer whose implementation was very challenging. For example, the project UI was started using Dojo and Tapestry frameworks but later moved to a new unknown yet GWT framework and even now project has quite modern UI heavily using AJAX technology. This project had very complex rules for social network relations/media access rules and sharing. This required having a huge volume of server side queries to be optimized. In the end the project backend was partially moved from local db storage to Amazon services (S3). At the beginning of this project I was charged with the leadership of a small team of 5 developers. However, as my expertise in this project grew I was able to undertake more responsibilities, from both the perspective for using new cutting age technologies and managing more resources. In the end our team has increased to 50 developers Furthermore, during the development phase I created architecture for backend services including the services layer basing on spring and hibernate. I was integral in the design of the database structure and participated in further service layers Hibernate related project performance optimizations. From 2006 to 2011 (5 years) Java developer @ PowerSteering Software is the leader in On-Demand Enterprise PPM software for Information Technology, Operational Excellence, New Product Development and other enterprise initiatives. Its easy-to-use software provides executives at the US Army, Raytheon, Ingersoll Rand, Merck, United Health Group, TD Bank, Washington Mutual, Seagate, Best Buy and over 120 other customers with executive visibility, strategy alignment, and enhanced team productivity in order to drive strategy and accelerate results across the enterprise. My responsibilities included: • New features development as per customer requests • New reports implementation using jasper reports • Existing code optimizations and review From October 2004 to April 2006 (1 year 7 months) Junior Developer @ From January 2003 to June 2004 (1 year 6 months) Institute for Low Temperature Physics and Engineering of the National Academy of Science of Ukraine From 2000 to 2003 Master's degree, Informatics & Mathematics @ Harkivs'kij Nacional'nij Universitet im. V.N. Karazina From 1995 to 2000 Master of science, Mathematics @ Kharkiv National University for Karazin From 1995 to 2000 Konstantin Kulagin is skilled in: Java, Hibernate, Tomcat, Spring, Ant, Java Enterprise Edition, SQL, JUnit, GWT, JDBC, Software Development, MySQL, Maven, Design Patterns, Servlets, AJAX, OOP, Subversion, XML, HTML, JavaScript, JSP, EJB, JMS, Git, Struts, IntelliJ IDEA, JIRA, JSF, Web Applications, MVC, JBoss Application Server, JBoss, J2EE, JPA, Groovy, Jasper Reports, Agile, Java software..., Log4j, JNDI, Velocity, JSTL, Web Development, Tortoise SVN, JTA, kafka, HBase, Agile Methodologies, Spring Framework

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Konstantin Kulagin's Personality Type

Introversion (I), Intuition (N), Thinking (T), Perceiving (P)

Average Tenure

1 year(s), 8 month(s)

Konstantin Kulagin's Willingness to Change Jobs



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