Сергiй

Serhii Cherepenin
JAVA DEVELOPER

Profile
Details
Have more than 4 years of experience in Java. Have good knowledge of Hybris
development and as well as Java EE, Web Development, JavaScript (Native, Ajax, Dnipro, Ukraine​
jQuery) and Java-related technologies. I have good experience in API and integration. [відкрити контакти](див. вище в блоці «контактна інформація»)
Able to independently solve complex problems and find optimal solutions depending [відкрити контакти](див. вище в блоці «контактна інформація»)
on technical requirements. In my free time, I improve my skills as a software engineer,
gain new experience reading and watching content related to software development.
Skills

Employment History Java

JAVA/HYBRIS SOFTWARE ENGINEER, Aimprosoft, Kharkiv Hybris
NOVEMBER 2019 — OCTOBER 2024

Designing, developing, testing, implementing, and maintaining web application
software and SAP Hybris projects. Finding out the details of tasks if the information is Spring
incomplete. Monthly reporting and analysis of the executed work.

QA ENGINEER/AUTOMATION QA ENGINEER, Stock Technology Center, JavaScript
Kiev
APRIL 2015 — AUGUST 2019
Git
Testing and writing automation test for large Financial System. Creating test cases
and test scenarios for online monitoring of the system.
HTML

Education
SQL
Master’s degree, V. Dahl East Ukrainian National University
SEPTEMBER 2009 — JUNE 2014

CSS

MAJOR PROJECTS
Hibernate
CLEANING AND HYGIENE SUPPLIES STORE
British large project with deep customization for b2c and b2b sales. Eight sites with
different product bases, configurable behavior from backoffice, and multiple
integrations with other systems. We have been working on customizing new themes Languages
and new designs for invoices. Along with this, the developers adapted custom plugins
English
for the new design and edited the controllers.
Role: SAP Commerce Engineer
Responsibilities:
Creating and updating database models
Implemented MVC controllers and services
Supporting the existing functionality
Fixing bugs and consulting managers on production
Creating SQL queries.
Creating and changing pages and components(jsp, tag, js, css).
Export features (web services, export to csv , headerlib etc.)
Cronjobs and business processes.
Backofice changes(widgets, configuration).
Hybris migration from 1905 to 2205. Platform: Hybris 19.05
Databases: MS SQL Server
Technologies: Java, Spring MCV, JSTL, Apache Tomcat JSP, JavaScript, JQuery
Third parties: Solr Tools: IntelliJ IDEA 22.x, GIT, Azure Tea

HYPERMARKET IN SPAIN
It’s a new generation merchant present in Spain since 1981. They are a responsible
company and actors of the good, the healthy, and the local. They are part of an
international historical retailer. In Spain, they operate through supermarkets,
hypermarkets, and online commerce. B2C accelerator store for Spain which is
oriented on providing general-purpose products. We worked on: implementing and
customization checkout, customer support cockpit, hybris management console.
Role: SAP Commerce Engineer
Responsibilities:
Implementing and customization Controllers, Strategies, Facades, Services, Dao’s,
DTO’s, Populators
Creating and customization new strategies and services
Backoffice customization
Bug fixing and maintenance
Platform: Hybris v6.6
Databases: Oracle Technologies: Java, Spring, Spring MVC JavaScript, jQuery, JSP,
HTML, CSS
Third parties: Solr, Correos Integration, CIAM, Comarch Tools: IntelliJ IDEA 20.x, Git,
Postman
Team size: 6 - 7

COSMETICS STORE
B2C accelerator for the chain of stores in more than 10 countries which are oriented
on providing infrastructure for resellers and cosmetics sale itself with a custom
payment integration and different types of checkout related to countries. We worked
on: - customizing and creating new promotion rules, actions, strategies - custom logic
for free shipping based on promotions and tracking the goal to free shipping for
customers - creating a free sample structure based on a promotion engine. Customers
can choose the gift they want if the conditions of the promo were adhered to -
integrating and customizing CDC feature.
Role: SAP Commerce Engineer
Responsibilities:
Implementing and customization Controllers, Strategies, Facades, Services, Dao’s,
DTO’s, Populators
Customizing checkout flow
Developing and customizing login/registration flow
Integrating and customizing CDC
Developing and customizing promotion engine(Conditions, Actions)
Creating unit and integration tests Platform: Hybris 1905
Databases: MySQL
Technologies: Java, Spring, Spring MVC, Servlets, JUnit, Mockito JavaScript, jQuery,
JSP, HTML, CSS
Third parties: Solr, IP geolocation API, Google Analytics Tools: IntelliJ IDEA 20.x, Git,
Postman Team size: 7

IMPORT EXPORT MODULE
Plugin aimed for import and export sites, content and product catalogs to cloud
services (e.g. AWS S3, Dropbox). In the case of this module a custom perspective was
realized. Developed a lot of custom widgets and developed connections to cloud
services. Implemented flexibility to work with import and export data.
Role: SAP Commerce Engineer
Responsibilities:
Creating and updating widgets
Implementing logic and connections between widgets
Creating custom popup for choosing files and folders
Platform: SAP Commerce 1808
Databases: HSQLDB
Technologies: Java, Spring, Spring MVC, ZK Third parties: AWS, Dropbox Tools:
IntelliJ IDEA, Git Team size: 5