Szymon Stepniak
Freelancer
Toruń, Kuyavian-Pomeranian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolSzymon Stepniak is a seasoned freelance software engineer from Toruń with over a decade of professional experience and 18 years of hands-on development passion. He blends backend Java expertise—contributing to core frameworks like Apache Grails—with practical leadership delivering CI/CD at scale, having designed a Jenkins Shared Library used across 200+ pipelines. As a former team lead and co-founder of a local Java User Group, he pairs technical depth in Spring Boot, Spring Cloud and Groovy with community building and mentoring. Unusually, he channels the same attention to detail into award-winning LEGO stop-motion filmmaking, demonstrating a rare mix of engineering precision and creative storytelling. Recognized as an Upwork Top Rated freelancer, he thrives on turning complex distributed systems and SaaS products into reliable, maintainable solutions.
12 years of coding experience
18 years of employment as a software developer
Computer Science, Computer Science at Nicolaus Copernicus University
English, Polish
Stackoverflow
41,226reputation
3.4mreached
715answers
10questions
gradle
top-5%
closures
top-5%
java
top-1%
spring
top-1%
grails
top-5%
rest
top-5%
Github Skills (29)
grails10
spring10
groovy10
java10
spring-boot10
jenkins10
jenkins-pipeline10
testing9
json9
intellij-idea9
multithreading9
docker9
configuration-management9
thymeleaf9
rest9
Programming languages (10)
Github contributions (5)
apache/grails-core
Feb 2014 - Dec 2014
Grails - the Web Application Framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 commits, 2 comments in 9 months
Contributions summary:Szymon primarily contributed to the Grails core framework, focusing on configuration, converter, and build-related improvements. Their work included fixing typos, adding thread-local converter configurations, and integrating previously configured marshallers. The user also addressed packaging application configuration files and refactored by using GrailsApplicationAware interface for bean injection. These changes demonstrate a focus on improving the internal workings and extensibility of the Grails framework.
grailsgroovy
wololock/blogging-from-ide
Apr 2019 - May 2019
Contributions:50 commits, 6 pushes, 1 branch in 1 month
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