Oracle Cloud
Led UI architecture for a cloud-native Access Governance platform used by global enterprises, then stepped into backend reliability work during a critical phase to raise test coverage from 30% to 82% and help restore system stability.
About Arun Kiran Patro
Arun Kiran Patro - Principal Engineer & Consultant
I am Arun Kiran Patro, and I didn't start LegacyToAI to build another consulting company.
I started it after spending 15+ years inside complex systems at Oracle and PayPal and seeing the same problems repeat across teams and organizations: legacy systems that were hard to change, low-code platforms that created long-term lock-in, and architectures that looked good on paper but slowed down real delivery.
Over time, I realized most companies do not need more tools or large rewrites. They need clarity. They need someone who can step into a complex system, understand it quickly, and make the right architectural decisions.
That's how I work. I stay hands-on, work directly with engineering teams, and focus on outcomes: systems that are easier to build, easier to maintain, and better aligned to business growth.
Track record
Enterprise experience with measurable impact
PayPal
Worked on systems operating at massive scale, including high-value payment compliance that recovered about $800K per week in transaction volume and CRM workflow redesign that reduced customer support handling time.
Platform modernization
Transformed legacy systems into maintainable architectures, built unified data layers with GraphQL and orchestration patterns, and designed frontend systems that scale across teams and platforms.
Execution leadership
Operated at the intersection of architecture, product thinking, and execution, leading cross-functional work without depending on heavy process overhead or abstract advisory alone.
How I work
Hands-on architecture with delivery behind it
- I define architecture and contribute directly to execution.
- I work with teams to unblock delivery, not just advise.
- I simplify systems instead of adding layers.
- I focus on measurable outcomes: performance, scalability, and reliability.
Profiles and credentials
Selected links
My GraphQL patent is part of the same hands-on architecture work I do for teams modernizing complex systems and shared data platforms.
Issued patent
US12339836B2: GraphQL Data Source Introspection UI
I hold this patent for a GraphQL interface pattern designed to introspect connected data sources and make complex systems easier to navigate.
Arun Kiran Patro
Background, recommendations, and delivery history across Oracle, PayPal, and modernization engagements.
Work with me