Yurii L.
Lviv, Ukraine
56%
Job Success
Java Tech Lead | CryptoTrading | Spring Boot
$33.00/hr
Java Tech Lead, 12+ years of experience
🥇 2016-2019 Top Rate on Upwork
Delivered 30+ applications to the market for clients from the USA, Western and North Europe.
My expertise:
✅ Java main stack: Java8/Java11/Java17, Spring Boot, Spring Security, Spring Data, JPA/Hibernate
✅ Java libraries: JUnit/Mockito/PowerMock, RestAssured, Lombok, JMH
✅ Databases: MySQL, PostgreSQL, MariaDB, SQLite, MongoDB
✅ DevOps: Linux, Docker, DockerHub, Apache Maven/Gradle, Jenkins, Jenkins pipelines, SonarQube, SonarRunner, DigitalOcean, AWS
✅ REST APIs: design, development, documentation (swagger)
✅ Have experience in front-end application delivery: Vue.js-based and React.js-based
✅ CryptoTrading: Binance/Bitfinex/Kraken APIs
My achievements:
✅ Developed an application for one of the customers that generate ≈$50K of profit every month
✅ Reduced the DevOps price on one of the projects from ≈$10K per month to several hundred dollars
✅ Increased team size from 1 to 5 people for a few customers based on their needs
Work history
Work history
Java/React Code Review and Cyber Security Testing
Sep 11, 2024
-
Sep 13, 2024
"I had the pleasure of working with Yurii on a code review, and he exceeded my expectations. He was extremely professional, available at all times, and flexible with his hours…
Private earnings
Spring Boot (Java) Developer to assist me
May 23, 2024
-
May 27, 2024
No feedback given
Private earnings
Enhance data-driven web application with faceted search and notification
5.0
of 1 reviews
Mar 29, 2021
-
Jun 14, 2021
5.0
May 3, 2021
"Yurii is great to work with as a Java developer. He developed a notification system and delivered the project on time. We would highly recommend Yurii for Java full-stack development."
Private earnings
Back-end & API Development for SaaS App
Feb 13, 2020
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May 21, 2020
"Yurii has very strong programming skills across a variety of languages and toolsets. He was able to quickly get up-to-speed on our more antiquated code base and help us make…
Private earnings
Vybe - final milestone
May 30, 2019
-
May 30, 2019
"The best developer team we have worked with. Will continue our work in the future."
Private earnings
Java/Kotlin Developer with strong Firestore experience needed to build desktop application.
Mar 14, 2019
-
May 30, 2019
"This is the best developer team we have worked with through any Freelancing sites. They are punctual, accommodating and contribute their expert view to solving inevitable problems during the development…
Private earnings
Developer needed for website defect fixes and application changes - Java 1.7, Spring MVC, Hibernate
Jan 17, 2019
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Mar 13, 2019
"Yurii was great to work with. I couldn't commend him more strongly. He successfully delivered on all his commitments. He kept me regularly updated on progress. I plan to work…
Private earnings
Spring Boot developer for Basic API development
Dec 9, 2018
-
Jan 23, 2019
No feedback given
Private earnings
v2 of slackbot
Nov 8, 2018
-
Nov 21, 2018
"Happy to do a second job with Yurii and Forcelate. Job was well executed and we worked well trying to hunt down some bugs and got good revisions every 24-48…
Private earnings
Create a Slack bot to search Contacts/Companies/Deals from a Hubspot account and return info
Oct 12, 2018
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Oct 26, 2018
"I really liked working with Yurii. Good communication, good responsiveness and well thought out. Good documentation provided without prompting which is good and shows thinking around how it will be…
Private earnings
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Skills
Skills
- Spring Boot
- Java
- Spring Security
- Spring Framework
- Docker
- Vue.js
- JavaScript
- Jenkins
- DevOps
- Cryptocurrency