Worked on upgrading Apache Spark versions within the influxdata/official-images repository, focusing on enhancing compatibility with the latest Spark features and improvements. The effort involved updating Spark to versions 4.1.1, 4.0.2, and 3.5.8, which reduced technical debt and provided a smoother upgrade path for future Spark releases. Leveraged skills in cloud computing, containerization, and DevOps to ensure the upgrade process was robust and maintainable. Used Python to manage and automate aspects of the upgrade, emphasizing reliability and future-proofing. No major bugs were addressed during this period, with the primary focus on feature compatibility and infrastructure modernization.