Cloud-Native Migration (Stratus)

Multi-year migration from monolithic hub-spoke to stateless Kubernetes platform

Overview

Led the multi-year migration of Appian's cloud infrastructure from a monolithic hub-spoke architecture to a stateless, Kubernetes-based platform (internally codenamed Stratus). This transformation served 1,200+ customers across 21 global regions.

Technical Approach

Architecture — Decomposed monolithic services into stateless microservices on Kubernetes
Scale — 1,200+ enterprise customers, 21 regions worldwide
Compliance — Maintained HITRUST certification throughout the migration

Results

Eliminated 7 categories of outages entirely
Reduced overall downtime by 23%
HITRUST compliance maintained throughout
Platform now serves as the foundation for all Appian cloud services