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Denys Skrinnik
JAVA DEVELOPER

CONTACTS
Telephone number: [open contact info](look above in the "contact info" section) (Telegram, Viber)
E-mail: [open contact info](look above in the "contact info" section)
Linkedin / Github profile
City: Varna, Bulgaria
Ready to work remotely

SUMMARY
Backend Developer with 3 years of commercial experience specializing in Java 21, Java EE, Quarkus, Spring
boot, REST, Redis, SQL, Hibernate, Docker, Kubernetes. Solo implemented new technology for our team -
Apache Camel (both development and deployment). Fluent in Russian, Ukrainian, English (C1), Bulgarian (A2).
A fast learner with a collaborative mindset, ready for new professional challenges.

SKILLS
● Java 21, Java EE
● Docker, Kubernetes, Minikube
● Quarkus, Spring, Spring boot
● Keycloak, JWT, OAuth2
● Redis, SQL (Flyway, Liquibase, PostgreSQL, MySQL, Oracle)
● Unit testing (Junit, AssertJ, Mockito)
● JSON, HTTP-methods, JAX-RS, Swagger
● Hibernate, JPA
● IntelliJ IDEA, Maven, Git, Github, Gitlab
● Apache Camel, Camel K
● FTP, Soap UI, XML, XPath, XSLT, JMS
● CI/CD (TeamCity)
● OOP, Design patterns, Microservices architecture
● TDD, SOLID, DRY principles
● Good understanding of SCRUM, Agile
● Basics: JavaScript, Python, C#
● Languages:
o Russian: native
o Ukrainian: native
o English: C1
EXPERIENCE
Java Developer
Dec 2024 – Present
Project description: Platform for real-time drone monitoring and management, providing visualization of
drone positions, alerts, and sensor data for clients.
Responsibilities:
· Integration & Data Handling: Developed and maintained services for collecting, processing, and storing
drone telemetry and sensor data, including alert notifications via email.
· API Development: Designed and implemented RESTful APIs for client-facing dashboards, ensuring
secure and efficient data access.
· Real-time Tracking: Implemented real-time data streaming and mapping of drone positions using web-
friendly technologies.
Used technologies: Java Core, Java EE, Redis, REST, SQL, Hibernate, Keycloak, Docker, Kubernetes, Git,
GitLab

Java Developer
Dec 2022 – Nov 2024
Project description: Delivering at-a-glance shipment visibility platform with real-time tracking for all your
shipments and orders
Responsibilities:
· Implemented Integrations: Developed and maintained integrations for receiving requests, managing
authentication, and preparing/saving requests to vendor APIs, utilizing both REST and SOAP protocols.
· Unit Testing: Created unit tests using Mockito to ensure code quality and functionality.
· Database Management: Wrote Liquibase scripts for database version control and management.
· API Development: Designed and implemented RESTful API methods using JAX-RS, Swagger, and
RESTEasy, ensuring robust and scalable web services.
· Kubernetes Configuration: Configured and deployed integrations into Kubernetes environments using
Camel K to enhance scalability and management of integration processes.
Used technologies: Java Core, Java EE, Kubernetes, Docker, Minikube, REST, SOAP, SQL, Hibernate, Mockito,
Git, GitLab, WildFly, Keycloak, Swagger, AWS (S3), CI/CD (TeamCity)

EDUCATION
o Varna University Management
Bachelor's Degree in Software Engineering 2022-2025

ADDITIONAL EDUCATION
● Java course at Mate academy (OOP, Java 8+, Spring, Hibernate, Servlet API, SQL)
● Java SE 11 Developer 1Z0-819 OCP, Advanced Java – on Udemy
● JavaRush (4 Levels)