Worked on enhancing reliability and code quality across the aerospike/spring-data-aerospike and openrewrite/rewrite repositories using Java and the Spring Framework. Addressed a potential NoSuchElementException in the Aerospike data-access layer by improving deleteAll handling for empty iterables, ensuring safer production workflows and adding targeted regression tests. In openrewrite/rewrite, introduced support for the Checkstyle UnusedImports rule by developing a new style class, integrating it into configuration loading, and expanding test coverage to include Javadoc scenarios. Focused on backend development and static analysis, these contributions strengthened code quality gates and provided clearer feedback loops for ongoing development and deployment.