Jens Schauder
Sr. Member Technical Staff at VMware
Cottbus - Chóśebuz, Brandenburg, Germany
Summary
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RockstarJens Schauder is a Senior Member of Technical Staff with 17 years of hands-on experience building and hardening Java data access frameworks, currently at VMware in Cottbus, Germany. He is a long-standing contributor to the Spring ecosystem—working across Spring Data JPA, Cassandra, MongoDB, Relational and HATEOAS—where his work on query parameter strategies, nested UDTs, schema generation and native/JPA optimizations has improved both performance and developer ergonomics. Jens combines deep backend engineering with testing discipline (notably contributions to JUnit 5) and a track record of refactoring and dependency-cleanup that keeps large frameworks maintainable. Colleagues rely on him to turn complex database semantics into robust, well-tested APIs and to smooth migration pain caused by evolving Java and Spring platforms.
17 years of coding experience
4 years of employment as a software developer
Stackoverflow
79,539reputation
10.2mreached
2,423answers
207questions
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Github Skills (95)
graalvm10
testing10
spring-data10
test-framework10
data-persistence10
mappings10
javas10
junit10
rest-api10
schema10
data-conversion10
app-framework10
schema-design10
mybatis10
mybatis-plus10
Programming languages (13)
Github contributions (5)
spring-projects/spring-data-relational
Feb 2017 - Jan 2023
Spring Data Relational. Home of Spring Data JDBC and Spring Data R2DBC.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:17 releases, 92 reviews, 761 commits in 6 years
Contributions summary:Jens's primary contributions involved the initial setup and subsequent development of features related to data access and database interaction within the Spring Data JDBC project. The user worked on implementing CRUD methods (save, find, delete), supporting the use of both mutable and immutable entities, and handling complex data types such as lists, maps, and database-generated identifiers. The code also incorporated unit tests for each feature implemented.
spring-bootspring-datarelationaldddr2dbc
spring-projects/spring-data-jpa
Apr 2017 - Nov 2022
Simplifies the development of creating a JPA-based data access layer.
Role in this project:Back-end Developer
Back-end DeveloperContributions:16 releases, 29 reviews, 466 commits in 5 years 7 months
Contributions summary:Jens focused on restructuring the parameter binding process within the Spring Data JPA framework, which included creating strategies for handling query parameters. They introduced code to handle SpEL expressions within queries, allowing for more flexible parameter binding. Furthermore, the developer introduced new classes and interfaces for setting query parameters and parameter value extraction. Their contributions impacted the core functionality of query processing, enhancing the framework's ability to handle more complex query scenarios.
spring-dataddddata-accessframeworkdata-access-layer
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