Віктор

SKALA VIKTOR JAVA DEVELOPER 3+ year

CONTACTS:
Telephone: [відкрити контакти](див. вище в блоці «контактна інформація») Telegram: t.me/SkalaViktor
LinkedIn: [відкрити контакти](див. вище в блоці «контактна інформація») Address: Ukraine, Odessa
Email: [відкрити контакти](див. вище в блоці «контактна інформація»)

PROFESSIONAL SUMMARY
Energetic and driven Java developer with 3 years of experience in designing,
developing, and deploying scalable, high-performance applications. Proficient in
frameworks such as Spring and Hibernate. Skilled in building RESTful APIs,
managing relational databases like MySQL/PostgreSQL, and working with NoSQL
databases such as MongoDB and Redis. Experienced in implementing
microservices architecture and integrating message brokers like Kafka for reliable
event-driven communication. Adept at collaborating in Agile teams, troubleshooting
complex issues, and optimizing application performance. Possesses a strong
understanding of object-oriented programming principles and a passion for writing
clean, maintainable code. Committed to continuous learning and leveraging new
technologies to deliver innovative solutions.

SKILLS:
 English: Upper-Intermediate
 Java: Java Core, OOP, SOLID
 DB: JPA, JDBC, Hibernate, RDBMS (PostgreSQL, MySQL), Liquibase
 Web Development: REST API, Microservices
 Spring: SpringBoot, Spring Core, MVC, Web, Data JPA, Security
 Tools: Maven, Gradle, JUnit, Mockito, Selenium, Lombok, Docker, Docker
Compose, OAuth2, JWT
 Cloud: AWS (Cognito, SES, SNS, EC2, RDS, S3)
 Version Control: Git
EXPERIENCE

Healthcare Domain. Duration: 03.2023 - 01.2025
Application is a comprehensive and user-friendly platform that empowers doctors
and small medical enterprises by providing efficient patient, financial, and resource
management capabilities, thereby streamlining their operations and improving
overall healthcare delivery. The application aims to create a seamless
ecosystem, by providing a comprehensive set of features and tools that cater to the
doctors' and administrators' specific needs.

Team:
8 specialists

Responsibilities:
 Building and optimizing microservices with Spring Boot
 Designing RESTful APIs for seamless integration
 Managing SQL and NoSQL databases, ensuring performance and integrity
 Debugging and resolving backend issues efficiently
 Reviewing code to maintain quality, security, and best practices
 Enhancing system scalability, maintainability, and security
 Working in Agile teams, contributing to sprints and retrospectives

Technologies and tools:
 Java, Spring (Boot, Security, Data JPA, Cloud)
 Liquibase, PostgreSQL, MongoDb
 Gradle, Docker, Lombok, Keycloak,
 JUnit, Mockito, Postman, Git
Infinity Bank. Duration: 03.2022 — 02.2023
A cutting-edge digital banking application built with a microservices architecture,
designed to provide users with a seamless experience for performing a wide range
of essential banking operations. Key features include user registration, account
creation, bank card issuance, and management of loans and deposits. Users can
securely execute transactions and monitor account activity with detailed transaction
histories.

Team:
11 specialists

Responsibilities:
 Developing features in a microservices architecture
 Designing and implementing RESTful APIs with Spring Boot
 Managing databases (schema design, migrations, optimization)
 Troubleshooting and resolving service issues
 Ensuring scalable, secure, and maintainable backend systems
 Conducting code reviews, promoting best practices and clean code
 Collaborating in Agile workflows (sprint planning, reviews, retrospectives)

Technologies and tools:
 Java, Spring (Boot, Security, Data JPA, Cloud)
 AWS (Cognito, SES, SNS, S3), JUnit, Mockito, Postman, Git
 Maven , Docker, PostgreSQL, Liquibase, Lombok
CRM System. Duration: 09.2021 — 02.2022
An enterprise CRM system that manages and optimizes the workflows of all
company’s departments: from sales to resource management. The system is
designed for data storage and automation of such processes as employee staffing,
sales, and pre-sales management. It allows users to store the history of interactions
with customers, analyze sales and employee activities, build forecasts regarding
sales and company resources, etc.

Team
12 specialists

Responsibilities
• Implemented and deployed new functionality
• Optimized code for better performance and scalability
• Participated in sprint planning, stand-ups, and reviews
• Created technical documentation for reference and reporting
• Developed unit and integration tests
• Conducted code reviews
• Troubleshot and debugged issues

Technologies and tools
• Java, Spring (Boot, Security, Data JPA), Hibernate, Log4J, Lombok, MySQL,
REST API, Maven, JUnit,
Mockito, Git