Marcin Słowiak
Group Architect at SmartRecruiters
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolMarcin Słowiak is a product-driven Group Architect based in Krakow with nine years of experience building and scaling Java backend systems for high‑traffic SaaS products. At SmartRecruiters he progressed from Senior Engineer to Group Architect, focusing on domain-driven design, reactive architectures, performance optimization, and data-informed product decisions for applicant and onboarding experiences. He combines hands-on backend work—proven by contributions to Spring Boot APIs and artifact-repository testing—with devops and observability practices, believing that monitoring is essential to build valuable software. Comfortable across the stack from GraphQL and OpenAPI backends to frontend TypeScript and CI/CD, he also mentors engineers and improves test reliability in open-source projects. Notably pragmatic, he prefers clear salary boundaries and brings a continuous-learning mindset backed by an MSc in Informatics from Jagiellonian University.
9 years of coding experience
6 years of employment as a software developer
Master's degree Informatyka, Master's degree Informatyka at Jagiellonian University
English, German
Stackoverflow
1,788reputation
104kreached
82answers
10questions
reactive-programming
top-5%
java
top-5%
spring-webflux
top-5%
Github Skills (38)
api-rest10
postgresql10
artifact10
api-design10
restful-api10
artifactory10
testing10
repos10
artifacts10
java10
javas10
junit10
repo-management10
spring-boot10
maven10
Programming languages (6)
Github contributions (5)
strongbox/strongbox
Sep 2019 - Jul 2020
Strongbox is an artifact repository manager.
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:16 commits, 5 PRs, 27 comments in 10 months
Contributions summary:Marcin's contributions primarily involved fixing issues related to test failures within the artifact repository manager. The commits indicate a focus on resolving locking problems that were preventing tests from running correctly. The user also made changes to integrate separate repositories for each test and modified the test assertions to use AssertJ. These contributions improve the reliability of the project's testing infrastructure and core functionality.
mavenartifact-repository-managerchocolateypypiartifact-repository
Project-Books/book-project
Oct 2021 - Nov 2021
Book tracker web app for book lovers
Role in this project:Backend Developer
Backend DeveloperContributions:5 reviews, 6 commits, 2 PRs in 1 month
Contributions summary:Marcin contributed to the backend of a book tracking web application, focusing on implementing and refining API endpoints. Their work involved fixing indentation, implementing a PATCH endpoint for updating books, and integrating a book import feature from LibraryThing. The commits demonstrate proficiency in Java, Spring Boot, and related technologies for building RESTful APIs and data management.
flywayspring-bootreactweb-platformdocker
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