Worked on the e2b-dev/infra repository to enhance backend reliability by improving error handling for AWS S3 object retrieval. Focused on the S3 HeadObject operation, the developer implemented explicit handling for NotFound errors, which reduced false positives and improved the robustness of data pipelines. The approach consolidated error paths and introduced clear failure signaling, making it easier to observe and triage issues in production environments. Using Go and leveraging AWS S3 APIs, the work emphasized robust backend development and precise error management. These changes contributed to more reliable object retrieval processes and better traceability within the infrastructure codebase.