Contact information

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Work experience

Java developer

from 11.2023 to 10.2025 (2 years)
2DWorkflow, Дистанційно (IT)

2D Workflow is a web-based shipping and FBA prep platform designed to help Amazon sellers manage and automate
fulfillment operations, including shipment prep, label printing, and integration with Amazon’s Selling Partner API.
2dworkflow.com

Full-stack development of the 2D Workflow web application, handling both backend and frontend functionality.
Built backend services in a microservices architecture to support scalable, high-performance features for a large user base.
Implemented deep integration with the Amazon Selling Partner API, enabling automated interaction with Amazon
systems for shipment tracking, data retrieval, and operational workflows required for FBA.
Developed payment and billing features using Stripe to support customer transactions and subscription processes.
Designed and implemented UI components and workflows using PrimeFaces on the frontend, ensuring responsive and
user-friendly interfaces.
Built RESTful APIs and business logic using Spring Boot, maintaining clean and efficient service architecture.
Ensured data persistence with PostgreSQL and maintained optimized data access patterns.
Wrote comprehensive unit tests to validate application logic, maintain quality, and reduce regressions.

Java developer

from 02.2022 to now (4 years)

Stryker Corporation is a leading global medical technologies company that develops innovative medical devices and solutions
used by healthcare providers worldwide. stryker.com

Working on backend development for an internal web application used to monitor customer deployments, environments,
and system health — where customers refer to hospitals running Stryker’s software.
Design, implement, and maintain microservices within a microservice architecture to support real-time monitoring,
integrations, and data aggregation.
Built standalone backend services that integrate with the main application and other internal systems without direct UI
dependencies.
Developed a service for integration with Salesforce, enabling streamlined data exchange and operational workflows between
systems.
Contributed to enhancements and maintenance of a desktop log collection tool used for diagnostics and operational
support.

Java/Guidewire developer

from 02.2022 to 05.2023 (1 year 4 months)
IntegoSoft, Дистанційно (IT)

Continued development and support of a Guidewire-based insurance web application used by internal staff to manage
insurance policy issuance and processing (PolicyCenter, BillingCenter, etc.).
Implemented new features and customized business workflows using Gosu and Java in line with product requirements.
Participated in bug fixing, troubleshooting, and performance improvements to enhance system reliability.
Wrote and maintained unit tests to ensure code quality and prevent regressions.
Worked with MySQL databases for data persistence, designing queries and optimizing performance.
Collaborated with cross-functional team members (QA, product owners) throughout the software development lifecycle to
deliver production-ready functionality.

Java/Guidewire developer

from 06.2020 to 02.2022 (1 year 9 months)
Virtuace, inc., Дистанційно (IT)

Developed and enhanced a web application for an insurance company used by internal staff to process and manage
insurance policies, claims, and related workflows.
Valerii Yasynetskyi
Java Developer
Zaporizhya, Ukraine, Toloka str 20, 127,
[open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
Worked on both backend and frontend components of the system built on the Guidewire platform, a comprehensive
suite for property & casualty (P&C) insurance operations. Guidewire is widely used in the insurance industry to support
core functions such as policy administration, billing, and claims management.
Implemented business logic and custom features using Gosu, the object-oriented JVM-based language designed for
extending and configuring Guidewire applications.
Collaborated on integration points between Guidewire modules and external services, ensuring reliable data exchange
and smooth user workflows.
Performed bug fixing, troubleshooting, and code optimization to improve system stability and performance.
Developed parts of the application using Java where custom extensions and integrations were required beyond Guidewire’s
built-in capabilities.
Worked with MySQL databases for persistent storage of application data, writing queries and maintaining schema as
needed.
Participated in the full software development lifecycle, including requirements analysis, design, implementation, testing, and
deployment to staging/production environments.

Java developer

from 08.2019 to 06.2020 (11 months)
Softkit, Запоріжжя (IT)

Contributed to the backend development of a microservices-based real estate application used for property data
processing and agent matching on the Sold.com platform (accessible via USA VPN).
Participated in designing, implementing, and maintaining RESTful services in a distributed system architecture.
Diagnosed and resolved bugs, improving overall service reliability and performance.
Created and executed unit tests to ensure code correctness and prevent regressions.
Worked with both MongoDB and PostgreSQL for effective data storage and retrieval, depending on service requirements.
Utilized the Spring Boot framework to build scalable and maintainable Java microservices.

Java developer

from 05.2019 to 08.2019 (4 months)
It Navigator, Запоріжжя (IT)

Participated in the development and maintenance of an internal CRM system.
Implemented new features and enhancements based on business requirements.
Fixed bugs and resolved production issues to improve system stability and usability.
Worked with server-side Java using the Spring Framework.
Developed web interfaces using JSF.
Optimized database queries in PostgreSQL
Deployed applications on Apache Tomcat.

Education

Запорізький інститут економіки та інформаційних технологій

Економіка, Запоріжжя
Higher, from 2006 to 2011 (5 years)

Knowledge and skills

• Java
• Java Core
• Lambda
• Multithreaded programming
• Knowledge of OOP principles
• Spring Framework
• Spring MVC
• Spring Data JPA
• Spring boot
• Spring Security
• Spring Data
• JSF
• PrimeFaces
• SQL
• PostgreSQL
• MySQL
• Oracle Database
• NoSQL
• MongoDB
• Redis
• JOOQ
• Знання технологій JDBC
• RESTful Web Services
• REST API
• HTML
• CSS
• Microservices
• Knowledge of design patterns
• Apache Maven
• Gradle
• Git
• Apache Tomcat
• Flyway
• Liquibase
• Docker
• Selenium
• JUnit
• Mockito
• Kotlin
• Gosu
• IntelliJ IDEA
• Java Swing
• JavaFX

Language proficiencies

• English — average
• Ukrainian — fluent