Sergey

SERGEY SHESTAKA
JAVA DEVELOPER

DETAILS PROFILE

ADDRESS Experienced Java Developer and Engineering Company owner with advanced
Valencia English, 16+ years in building systems for LAN, WiFi, IPTV, and others. Holds Master's
Spain degrees in Computer Systems and Economics. Expertise in project and personnel
management. Passionate about Java, with over two years of hands-on experience.
PHONE
Proficient in Java, Spring, Spring Boot, Hibernate, RESTful API, Tomcat and Docker.
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WhatsApp Engineering and logical thinking, strong problem-solving skills and adept at meeting
tight deadlines. Skilled in Microservices, SQL databases, Algorithms and Data
EMAIL
Structures. Proven ability to navigate complex tasks, adapt to new conditions, and
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achieve goals efficiently.
Ready to work remotely
LINKS Ready to relocate

LinkedIn
EMPLOYMENT HISTORY
Skype
Java Developer, Mate Academy
GitHub
Oct 2022 — Present

Work with Java 8, 11, 17, Spring, Spring Boot, Spring Security, Hibernate,
SKILLS Liquibase, REST API, Tomcat, JUnit, Maven, Mockito, Docker, Swagger, MySQL
and H2.
Java 8, 11, 17
Create my own projects, available on GitHub:
Python, Kotlin, Angular, “eBookLand”
C++ Crafted an Online Bookshop using Java 17, Spring Boot, and Hibernate. Employed
DTOs, Spring Security, and Bearer tokens for secure user roles. Implemented
Servlet, JSP, Tomcat, REST,
features include shopping carts, cart items, book search, and order management
API, SOAP, HTML, CSS, XML
with status tracking. Utilized MySQL, Docker, and Swagger, and deployed the
Spring, Spring Boot, Spring system on AWS.
Security
"Rick and Morty"
Hibernate, JDBC, MySQL, Constructed a Java microservice centred on REST API with two key functions:
H2, PostgreSQL randomly generating character details and searching characters by name from the
JUnit, Maven, Gradle, Rick and Morty animated series. Employed MySQL for the main database, integrated
Mockito, Docker, Swagger H2 for testing, and fetched external data through a REST API. Ensured comprehensive
documentation of requests using Swagger.
IDE: IntelliJ IDEA
“EAN Query Microservice”
Version Control Tools: Git The EAN Query Microservice is designed to provide product details based on the
European Article Number (EAN) code associated with Supplier products. This service
Windows, Linux (Ubuntu) exposes a REST API that allows users to query product data, including basic product
information, supplier details, and destination information.

"CinemaBooker"
LANGUAGES
Java-based application designed to streamline the cinema experience for both
users and administrators. Leveraging the power of Hibernate and MySQL, this
English - C1
application offers a robust and efficient solution for managing cinema halls, movies,
Spanish - B1 sessions, orders, and user interactions.

Ukrainian - Native “CarConnect”
Russian - Native Developed a Java web app supporting authentication, registration, and CRUD
operations. Utilized JDK 11, Maven, Tomcat, Servlet API, JSTL, HTML, and CSS. Key
features include driver and car management, authentication, and linking drivers
with cars.
 Business Owner, Self-employed Ukraine
HOBBIES Jan 2007 — Nov 2022

Tennis Job description: Design, installation and maintenance of engineering systems for
buildings, such as: Local Area Networks, WiFi, IP-TV, IP-Telephony, Smart Home,
Sailing Room Management and Building Management Systems.

Developing and maintaining software for Building / Rooms Management
Systems. Programming PLC. Setting up software interaction between various
engineering systems.

Our customers: Hotels, Business Centers, Manufacturers, Private Houses.

Over 30 successful hotel projects were finished in Ukraine.

Job responsibilities:
Communication with the customers.
Project management.
Personnel Management.
Development and approval of the structure of the software product.
Quality control.
Presentation of the project to the customers.

EDUCATION

Master degree,
Odesa National Polytechnic University Ukraine

Areas of study: "Software for automated systems".
Studied C++ at the university. The graduation project was related to PostgreSQL DB.

Bachelor degree,
Odesa National Economic University Ukraine

Areas of study: "Business Economics. Human Resource Management."

Mate Academy

Professional Java Developer Course with Mentoring.
Completed basic courses: Kotlin, Angular, Python.

COURSES and CERTIFICATES

C++ Developer, Computer Academy STEP
Professional cours for C++ Developers

LinkedIn Learning: Java 8 for Professionals, Java 11, Programming Foundations:
Design Patterns, Spring Framework, Testing with JUnit, Microservices
Foundations, Kotlin for Java Developers, Docker, AWS Certified Cloud Practitioner

ACHIEVEMENTS AND KEY ABILITIES

Two years of experience in developing projects in Java. There are a lot of my
projects available on GitHub.

Great experience in managing large IT engineering projects. I have extensive
experience in dealing with customers and managing my own team.
Powerful engineering and logical thinking.
Ability to structure complex tasks and break them down into steps.
Understanding of algorithms and data structures.
Skills to solve complex problems and the ability to find solutions in difficult
situations.
Ability to work on a flexible schedule with a focus on the main goal.