This article examines the implementation of Temporal workflow orchestration in financial systems to ensure transaction consistency across distributed architectures. The article explores how Temporal's Workflow-as-Code model addresses critical challenges in financial transaction processing where consistency and durability are non-negotiable requirements. Through analysis of implementation patterns, performance metrics, and operational benefits, this article demonstrates how Temporal's event-sourcing architecture provides superior guarantees for exact-once execution semantics, failure handling, and state management compared to traditional distributed transaction approaches. The article presents a detailed case study of multi-step financial workflows highlighting significant improvements in transaction reliability, reduced manual intervention, and enhanced operational visibility. By formalizing best practices for workflow orchestration in financial systems, this article provides actionable guidance for organizations seeking to implement distributed transaction patterns that satisfy the stringent requirements of financial-grade processing while reducing development complexity and operational overhead.