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R O S T Y S L AV H A R B A R
Middle Java (Hybris) Developer

An organized, goal-oriented, creative and self-motivated back-end developer. Eager to
improve skills, always staying up-to-date with the development trends. Looking for an
opportunity to work in a friendly team on interesting projects in Java with modern
technical stack.

CONTACT EXPERIENCE

Phone Lviv, Ukraine
[open contact info](look above in the "contact info" section)
Java Developer at Sombra Inc. (InfoMart)
Java, Spring Boot, MongoDB, MS SQL Server, Jira, Git, Bitbucket, Feb 2024 – Sep 2024
Scrum, JUnit, Docker, ActiveMQ, Postman
Email
[open contact info](look above in the "contact info" section)
✓ Implemented key functionalities as a Java Developer for the InfoMart project, which
Address facilitates thorough documentation screening of potential employees during the hiring
process.
Lviv, Ukraine
✓ Played a pivotal role in delivering new features and enhancing existing ones by
actively engaging in requirements gathering, collaborating with testers, and aligning
business needs with technical solutions. Notably, contributed to the development of
SKILLS queue management functionality utilizing ActiveMQ, MongoDB, and MS SQL Server
databases.

Java Spring ✓ Led the redesign initiative of the existing system, focusing on microservice
architecture to enhance user experience and efficiency.
Hybris Jenkins ✓ Consistently met and exceeded performance objectives during periodic reviews,
earning positive feedback from peers and management for contributions and
Splunk Kibana achievements.

✓ Placed significant emphasis on implementing comprehensive unit tests to
Grafana SQL thoroughly validate all developed code and ensure robustness.

Git SCRUM Lviv, Ukraine
Freelancer at UvoCorp
Java, Excel, SQL, MS Access, Python, JS/HTML/CSS, Angular Mar 2023 – May 2024
C# JavaScript
✓ Working as a freelancer at UvoCorp, freelance academic writing agency.
HTML/CSS JIRA
✓ Writing different types of marketing and educational content.
Groovy JSP ✓ Designing, developing, testing, and maintaining software, mobile apps, and websites.

OOP Less ✓ Providing extensive support services to the customers.

DW ActiveMQ Java Developer at EPAM Systems (Magic) Lviv, Ukraine
Java, Java EE, Oracle, WebSphere, Jenkins, Git, GitHub, Scrum, Jan 2024 – Feb 2024
MongoDB Postman AWS

✓ Served as a Java Developer for a project focused on developing an API for the
Amway system, built on the Java EE platform.
EDUCATION
✓ Implemented new features, actively participated in Scrum ceremonies, and
collaborated with teammates from Malaysia.
2017-2021
"Lviv Politehnic" National Lviv, Ukraine
University
Hybris Developer at EPAM Systems (PayPal)
Java, Hybris, PayPal, MySQL, Jenkins, Git, GitHub, Scrum, Oct 2023 – Jan 2024
B.Sc Software ingeneering
Spartacus, Angular

2021
EPAM 5-month courses ✓ Worked as a Hybris Developer in the internal EPAM project which is developing an
Project: booking hotels addOn to extend functionallity of web applications with the integration of PayPal
website. Role: full-stack dev payment provider.

✓ Contributed to the delivery of both new features and extensions to existing ones.
2022-2023 This involved gathering requirements through discussions with testers, business
"Lviv Politehnic" National analysts, and collaborating on the technical implementation. Engaged in the development
University of additional functionality within Spartacus, leveraging the Angular framework.
M.Sc in Computer Science Additionally, collaborated with DevOps throughout the process.

✓ Engaged in the redesign of the existing system, involving processes such as
Backoffice customization and checkout customization.
LANGUAGE ✓ Contributed significantly to front-end development, undertaking a substantial
amount of work with JS, JSP, HTML, CSS, and Angular.

Ukrainian English
✓ Successfully achieved all established goals during periodic performance reviews,
receiving positive feedbacks from both colleagues and management.

Hybris Developer at EPAM Systems (Amway) Lviv, Ukraine
Java, Hybris, Kafka, MySQL, Cucumber, Jenkins, Git, Bitbucket, Oct 2020 – Jun 2023
GitHub, Scrum, Kibana, Grafana, Mockito, Splunk

✓ Worked as a Java Developer in the world’s largest direct-selling company ($8.9B
reported sales, 2021), Amway. It manufactures and distributes nutrition, beauty, personal
care, and home products—exclusively sold in 100 countries through Amway Independent
Business Owners (IBOs).

✓ Took part in delivering new features as well as extending the existing ones . The
process included collecting of requirements and discussions with product owners and
BA, technical implementation, cooperation with front-end devs, devops. Took part in
production support activities (fixing issues with orders, returns, sovling customers
requests).

✓ Detected several weak-spots in the system and proposed ways to eliminate them.
It was highly-appreciated by the product owners and allowed to avoid major misfunctions.

✓ Reached all the goals that were established on periodical performance reviews,
got positive feedback from colleges and management.

✓ Covered code with tests (integration, unit), to reduce the amount of bugs and the
possibility of regression in future

NON-COMMERCIAL EXPERIENCE

National University "Lviv Politehnic" Lviv, Ukraine
Java, JavaScript, C#, C++, C, Git, Python, MS SQL Server, Sep 2017 – Aug 2021
PostgreSQL, Microsoft Power BI

During studying at university I was taking part in a huge amount of small learning
projects using different languages, including graphics and computational algorithms.
As a team member was involved in all parts of SDLC. Also regularly had scholarship.

Graduate work Lviv, Ukraine
Python, PostgreSQL, Microsoft Power BI Desktop, T-SQL and DAX Sep 2021 – May 2022
(Data Analysis eXpression)

✓ BI system for Ukrainian tourism

✓ Created database and data warehouse

✓ Implemented ETL process using SQL (initial loading, incremental loading)

✓ Created verification scripts using SQL for testing data warehouse

✓ Gererated reports based on data from warehouse using Microsoft Power BI

Coursework Lviv, Ukraine
Java, Spring, Hibernate, Groovy, Postman, REST, Python, Sep 2019 – May 2020
JavaScript, HTML, CSS, IntelliJ IDEA, MS SQL Server

✓ Website for the volunteer movement of Ukraine

✓ Implemented both backend and frontend parts