Contributed to backend and probabilistic programming projects by enhancing observability and documentation in spring-projects/spring-ai and improving modeling flexibility in TuringLang/DynamicPPL.jl. Introduced session ID logging to WebFlux error handlers using Java and the Spring Framework, streamlining traceability and debugging. Expanded the NamedDist struct documentation in Julia, clarifying API usage for new users. Addressed a runtime crash in DynamicPPL.jl by implementing method overloads and routing logic for ComponentArrays, enabling stable mixed index and property access. Updated dependency management to ensure robust builds. Demonstrated skills in backend development, data modeling, and statistical programming while maintaining high standards for documentation and code consistency.