Břetislav Wajtr
Senior Software Engineer Consultant at SpinTrace
Plzeň, Southwest, Czechia
Summary
👤
Senior🎓
Top SchoolBřetislav Wajtr is a senior full-stack Java engineer and consultant with over 20 years of experience building enterprise web and desktop systems, currently helping customers succeed at Vaadin and maintaining production Kubernetes environments. He specializes in backend-first architectures using Spring, JPA, and modern JVM tooling (Kotlin preferred), with strong experience in databases (Postgres/Oracle/DB2) and pragmatic lightweight ORMs like jOOQ. Comfortable spanning DB-to-UI, he favors projects with real business logic—especially hospital and intranet systems—and thrives on close customer collaboration and iterative delivery. A longtime independent consultant and founder of the SpinTrace product, he blends hands-on coding with architecture, team leadership, cost estimation and quality control. Less obvious: he pairs deep Java/J2EE pedigree and Eclipse RCP/OSGi skills with current cloud-native DevOps (k8s, ArgoCD, Helm, Prometheus), making him effective across legacy and modern stacks.
10 years of coding experience
9 years of employment as a software developer
Master's degree, Faculty of Applied Sciences: Software Engineering, Master's degree, Faculty of Applied Sciences: Software Engineering at University of West Bohemia, Pilsen
English, German, Czech
Stackoverflow
151reputation
11kreached
1answer
0questions
Github Skills (56)
spring10
vaadin10
ui-components10
speedment10
web-components10
mybatis10
ebean10
java10
jooq10
jdbi10
sql10
vaadin-flow10
spring-boot10
sql2o10
jpa10
Programming languages (5)
Github contributions (5)
bwajtr/java-persistence-frameworks-comparison
Mar 2016 - Dec 2022
Comparison of non-JPA SQL mapping frameworks for Java (Jooq, Spring JDBCTemplate, MyBatis, EBean, JDBI, Speedment, sql2o)
Contributions:6 commits, 3 PRs, 55 pushes in 6 years 11 months
ebeanjavajdbctemplatejdbijooq
bwajtr/fluent-spring-jdbctemplate
Dec 2016 - Jul 2022
Introducing "fluent" style of coding into Spring JDBCTemplate
Contributions:1 PR, 34 pushes, 4 branches in 5 years 7 months
jdbctemplatefluentjava8spring-jdbctemplate
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