Arjun Bhalla developed enhancements for the harness/harness-go-sdk and harness/terraform-provider-harness repositories, focusing on expanding Cluster Orchestrator replacement window functionality and integrating commitment management. He introduced new replacement window types and custom time models in Go, enabling more flexible deployment scheduling and broader applicability for consolidation and reverse fallback strategies. In parallel, Arjun extended the Terraform provider to support commitment integration and replacement schedules, adding new configuration blocks and data resources for improved end-to-end configurability and visibility. His work leveraged Go, Terraform, and API development skills, delivering targeted features that addressed complex cloud infrastructure management requirements within a one-month period.