Candidates 23
$1000 / mo
≈ $12000 / year net
Java Developer
Ukraine · Odesa · 1.5 years of experience · Upper-Intermediate ·Published today
Ukraine · Odesa · 1.5 years of experience · Upper-Intermediate ·Published today
In another pivotal project, I served as a key developer for a Java Spring Boot monolithic backend API, initially designed to manage token transfers across Ethereum-like blockchains including Ethereum, BSC, and Tron. This system was later transitioned to support the emission, transfer, and management of a specific government token, demonstrating adaptability and the ability to meet evolving requirements.
As the primary developer on this project, I single-handedly took on a host of responsibilities. I was instrumental in the debugging process and implemented new major features, including the incorporation of external APIs and significant overhauls of the callback systems. Moreover, I made crucial modifications to the configurations to ensure optimal performance. My work was periodically reviewed by a senior developer, underscoring the level of trust and autonomy I was given.
The project relied heavily on Spring Boot and Spring Data for robust application framework and data access. The database management was handled via Postgres, while ElasticSearch, aided by Kibana, facilitated efficient, scalable search and data visualization. We used Docker and Kubernetes for containerization and orchestration, and Jenkins served as our go-to tool for continuous integration and delivery. APIs like Infura, BscScan, and Trongrid, along with libraries like Trident and web3j, played crucial roles in blockchain interaction and token management.
Completing hard problems in codewars and leetcode every day.
Constantly updating my LinkedIn with new Udemy courses!
Participated in several hackathons and challenges.
Hacker mindset, Open-minded person )))
$1200 / mo
≈ $14400 / year net
Java Developer
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 24 April
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 24 April
Prefer to be open to people and be a part of my team.
Experience:
NGO (August 2023- September 2023)
Marketplace for volunteers. Implemented static code analyzer.Fixed over 1500 bugs. Refactored over 500 classes. Set up classesautogeneration with OpenApi,
(Spring Boot, JPA, Hibernate, OpenApi, Docker,SQL-Server, H2, JUnit, AssertJ, GitLab)
Wallet Bot (November 2022 - September 2023)
App for managing private finances. I developed most of the back-end part. It is about 100 classes, 3 Docker containers, 2 databases,2 architectural patterns implemented. Moved DB on AWS RDS.
(Spring Boot, JPA, Amazon Web Services (AWS),PostgreSQL, MSSQL, Telegram API, JUnit, GitHub)
DarbiTask.com (May 2022 - September 2022)
Marketplace. Part-time work. Was creating repositories, service-layer, REST controllers, model classes, and unit tests. Worked withSQL Server and Docker containers.
(Spring Boot, JPA, Hibernate, Swagger, Docker,SQL-Server, JUnit Tests, GitLab)
AltraInvest (2021 - March 2022)
Trainee. Part-time work. Inner project for managing warehousestocks. Handling endpoints, writing queries, and refactoring code.
(Spring Boot, JPA, Hibernate, Swagger, Docker,SQL-Server, JUnit Tests, GitLab)
Offered to use Strategy pattern to choose and use wanted class instead of using reflect API.
I will give my full attention to growing our company up.
$500 / mo
≈ $6000 / year net
Junior Java Developer
Ukraine · 1 year of experience · Upper-Intermediate ·Published 22 April
Ukraine · 1 year of experience · Upper-Intermediate ·Published 22 April
Web application for saving information to a database.
Using Spring Boot, Caching, Thymeleaf, Spring Security, Maven, JUnit, Mockito.
Web application for receiving notifications on a webhook, saving to a database and sending to another webhook.
- Business process automation
- Setting up synchronization with the online store
- Setting up and implementing two-way operation of the
telegram bot
- Integration with software cash register
- Implementation of the address storage system
- Implementation of a system for accounting for defective goods
- Connection of various commercial equipment
$600 / mo
≈ $7200 / year net
Java Developer
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 22 April
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 22 April
• Providingnewfunctionality
• Troubleshooting,debugging
• ProvidingprocessingofKafamessages • Writingreusableandscalablecode
• ParticipatingindescribingUserStories
Technologies and tools
Microservices, Java 17, Spring Boot, Sprint Security, Spring Cloud, PostgreSQL, Hibernate, Liquibase, JUnit, Mockito, Kafka, Grafana, Postman
Pet-project
Pet project web application that helps Junior IT specialists to find their first job. Project is implemented in microservices and has functionality of managing vacancies, candidates, companies and has a separate module with mentors and their courses.
Responsibilities
• DesigningUserStoriesandfeatures
• Implementingfunctionalitybothonbackandfrontside • Testingallimplementedfunctionality
Technologies and tools
Java, Spring Boot, Vue.js, Figma, Postman, PostgreSQL, Hibernate, JUnit, Mockito
$700 / mo
≈ $8400 / year net
розробник java, back-end developer, android developer
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 22 April
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 22 April
Then I worked for 6 months for a private entrepreneur who owned a clothing store. A team of 3 people supported the store’s website, rewrote some legacy code, and fixed bugs. I have worked hands-on with all the technologies listed in the profile or resume. Additionally, I have theoretical knowledge of some other technologies. Among the most interesting and challenging tasks I have tackled are configuring security using Spring Security and creating a real-time or near real-time display of active users on the website.
I have been on a scholarship at my university for the third year already.
$800 / mo
≈ $9600 / year net
Java Developer
Ukraine · 1 year of experience · Upper-Intermediate ·Published 22 April
Ukraine · 1 year of experience · Upper-Intermediate ·Published 22 April
$600 / mo
≈ $7200 / year net
Junior Java developer
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 18 April
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 18 April
Completed internship fullstack developer course.
Have experience working with Node.js.
Love learning new technologies that simplify development.
Currently working on startup project Score-track.
Completed Professional studies courses 'Java Pro' (Ukrainian Hillel IT School) with an 'Excellent' mark: February, 2022 - June, 2022
$500 / mo
≈ $6000 / year net
Software Engineer
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 18 April
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 18 April
$600 / mo
≈ $7200 / year net
Java Developer
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 16 April
Ukraine · Odesa · 2 years of experience · Upper-Intermediate ·Published 16 April
Technologies: Spring MVC, Spring Security, Spring Data, Hibernate,
Servlet API, H2, JSTL
Computer Assembly: Self-assembled computers tailored to
specific orders
See some of my projects at:
Cinema App. Key responsibilities included implementing features such as movie session scheduling, movie and cinema hall management, ticket handling, shopping cart functionality, user authentication, and order processing. The project aimed to deliver a seamless and secure platform for users to explore, book, and enjoy movies in different cinema halls.
Books Online Store. Built a secure and scalable online book store with Spring Boot, Spring Data JPA, and Spring Security. Implemented RESTful APIs for user, book, category, shopping cart, and order management. Leveraged Hibernate for data persistence, ensuring efficient and modular functionality.
2018 - Winner of local swimming competition
2021 - Won the award for the best math student in the school
$700 / mo
≈ $8400 / year net
Java Developer
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 14 April
Ukraine · Odesa · 1 year of experience · Upper-Intermediate ·Published 14 April
Before that, I was already finishing my two pet projects. The first one is a Telegram bot using RabbitMQ and microservice architecture. The second one is a RESTful API with Spring Framework and PostgreSQL.