Тетяна

TETIANA FENIUK
B A C K E N D J A V A D E V E L O P E R

[open contact info](look above in the "contact info" section) SUMMARY
[open contact info](look above in the "contact info" section) Junior Java Backend Developer with a solid
foundation in Java 21, Spring Framework (Boot,
Vinnytsia, Ukraine
Security, Data JPA), and RESTful API design. Skilled in
🔗 GitHub LinkedIn OOP, PostgreSQL, and CI/CD tools (Jenkins, GitLab
CI/CD), gained through intensive training at IT
@tanchyk_mamba school "Shpp".
Bringing 13 years of experience in the medical field,
which helped develop strong soft skills:
SKILLS responsibility, attention to detail, analytical thinking,
Java 21 (Core, Collections, and the ability to work under pressure with large
volumes of information. Eager to apply both
Multithreading, Stream API,
technical knowledge and well-developed
Concurrency, Generics, Lambdas,
interpersonal qualities in a dynamic Agile team to
Exceptions) build scalable backend solutions.
OOP Principles: SOLID, KISS, DRY,
YAGNI, Design Patterns
Spring Framework (Boot, MVC, Data PROJECTS
JPA, Cloud, Security (Basic Auth,
CRM System (team project): A key contributor to a
OAuth 2.0, JWT), Test — JUnit, comprehensive, team-developed CRM, I built and
Mockito), Hibernate, JDBC maintained core modules like Event Types (service
format management) and Client Profile (client info,
RESTful API (Design, Versioning, Error
visit history, subscriptions). A significant
Handling, Validation), Spring
achievement was implementing automated
RestTemplate, Swagger/OpenAPI, database logging for client visits/missed sessions.
CURL My work also included setting up OpenAPI
PostgreSQL, MySQL, H2; NoSQL
(Swagger), standardizing error formats, developing
organization pre-moderation, and enforcing
(review): Elasticsearch,
comprehensive DTO validation for data integrity..
OpenSearch Spring Boot REST API for Task Management:
Apache ActiveMQ Developed a robust RESTful API supporting CRUD
Amazon Web Services (AWS EC2, operations, advanced error handling,
internationalization (i18n), and basic authentication.
RDS, Elastic Beanstalk)
CI/CD: Jenkins, GitHub Actions,
GitLab CI
Build Tools: Maven
 Git (GitHub, GitLab), Git Flow
Agile (Scrum), SDLC Understanding, "Collider" System Component (Spring Boot
Microservice): Built a microservice component
Jira, Task Estimation
responsible for calculating factorials and managing
Prometheus, Grafana, Java
context passing between microservices.
VisualVM Multithreaded Message Processor with Apache
Development Tools: IntelliJ IDEA, ActiveMQ: Developed a multithreaded Java
Postman, Lombok, MapStruct
application for efficiently processing large volumes
of messages via ActiveMQ, including validation and
Other: Task Scheduling,
data storage. Achieved a processing speed of over
Internationalization (i18n), Linux 9 million messages per second, exceeding the
(Basic Commands and Tools), project requirement of 3 million/sec by three times.
HTML/CSS, JSON Data Analysis Tool in Java for PostgreSQL: Created a
Java program to populate and analyze PostgreSQL
data, specifically identifying stores with the widest
EDUCATION product assortment.
JUNIOR BACKEND JAVA Multiplication Table Generator (Console App):
DEVELOPER Implemented a console application with input
IT school Shpp validation to generate multiplication tables.
2024 - 2025
EXPERIENCE
COMPUTER SCIENCE BASICS
ALUMNUS JUNIOR BACKEND DEVELOPER (TEAM PROJECT)
IT school Shpp 2024 - 2025
2024 Collaborated in an Agile/Scrum team to develop a
CRM system for managing registrations for various
MEDICAL FIELD SPECIALIST
dance classes and activities.
Medical Professional College
named after Academician D. K. Contributed to designing and implementing RESTful API
Zabolotny | Vinnytsia endpoints for core CRM functionalities, including user
2008 - 2010 registration and schedule management.
Utilized Spring Boot for backend development and
CERTIFICATES integrated with PostgreSQL for data management.
English for Beginners (A1-A2) Gained practical experience in version control

Stanford CSA106 + CSB106 (Git/Gitlab) and collaborative development workflows.

Junior Backend Java Developer Course MEDICAL PROFESSIONAL
2010 - 2023
Leveraged meticulous attention to detail and high
LANGUAGES responsibility in managing patient records and
Ukrainian: Native sensitive information over 13 years.
Russian: Fluent Demonstrated strong analytical and problem-solving
English: B1 (Intermediate, skills in diagnosing issues and making critical decisions
preparing for certification)
under pressure.
Managed and processed large volumes of information
accurately and efficiently in a demanding environment.
Collaborated effectively with colleagues, applying
strong communication skills in a team-oriented setting.