During June 2025, this developer contributed to the apache/hadoop repository by implementing configurable HTTP headers for S3 and STS clients within the Apache Hadoop ecosystem. Using Java and the AWS SDK, they enhanced the S3A and STS request pipelines to allow custom headers, improving integration, debugging, and compliance for external service calls. The work focused on configuration management, enabling users to inject headers dynamically and thereby increasing observability across cloud interactions. This targeted feature addressed the requirements of HADOOP-18562, laying the foundation for more robust interoperability and compliance in Hadoop’s cloud storage integrations without introducing any bug fixes.