Nazar Lelyak
Java Developer
Lviv, Lviv Oblast, Ukraine
Summary
👤
Senior🎓
Top SchoolNazar Lelyak is a Java developer with 11 years in software engineering and 6+ years focused on Java, experienced in designing and shipping microservice architectures for finance, IoT, insurance and airline domains. He combines hands-on backend development (Java 8–15, Spring Boot, JPA, Mongo/Postgres) with DevOps and cloud expertise—building CI/CD from scratch with Jenkins, automating deployments in AWS and using Docker, Chef and CloudFormation. Nazar has a strong testing pedigree, having led test automation, performance testing and end-to-end coverage (Selenium, Appium, JMeter) and routinely drives cross-service reliability through retries, backoff and integration monitoring. He’s comfortable translating customer requirements into technical contracts and PlantUML designs, and often pairs documentation with implemented DB migrations and test-covered features. Based in Lviv, Ukraine, he prefers pragmatic solutions that bridge development, QA and operations to deliver observable, resilient systems.
11 years of coding experience
8 years of employment as a software developer
junior specialist, Management of buildings and structures, junior specialist, Management of buildings and structures at Lviv Technical School buildingincomplete, Industrial and civil construction, incomplete, Industrial and civil construction at Lviv University of Lviv Politechnik
english: upper intermediate;, russian: intermediate;, ukrainian: mother tongues;, polish: intermediate
Stackoverflow
18,084reputation
5.9mreached
231answers
241questions
spring-boot
top-5%
java
top-1%
selenium
top-5%
spring
top-5%
java-time
top-5%
intellij-idea
top-5%
Github Skills (27)
java10
selenium9
selenium-webdriver9
intellij-idea9
spring9
java-time9
spring-boot9
gift8
asynchronous8
netty7
application-framework7
event-driven7
nio7
maven6
eclipse6
Programming languages (3)
Github contributions (5)
nazar-art/Java8ForReallyImpatient
Jul 2014 - Oct 2018
Contributions:38 commits, 35 pushes in 4 years 3 months
nazar-art/messanger2-app
May 2015 - Feb 2020
Contributions:20 pushes, 1 branch in 4 years 10 months
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