Five engagements that shipped — with the numbers.
Each case study covers the problem, the constraints, the architecture, the named technology choices and the measurable outcomes. Sourced from delivery work at Tier-1 banks, global retail and federal scale. Original write-ups on Medium — canonical versions here.
Multi-region banking payment platform — in three months.
Production-ready cross-region payment platform delivered against an aggressive 3-month window. Distributed teams, undocumented legacy, restored stakeholder confidence.
Enterprise architecture governance at Asia’s largest bank.
1,000+ applications, no EA forum. Stood up bank-wide governance council, principles for data · apps · microservices · messaging, and reduced duplicated initiatives by 30–40%.
High-speed digital lending platform — 200+ engineers, 50+ AWS environments.
Loan approval and disbursement in under 5 minutes; launched in 6 months with millions-of-users scale; zero critical incidents at go-live. Pega + Go microservices + FIS Risk Engine on AWS.
Retail platform modernisation & innovation roadmap.
Global retailer custom-platform assessment, 5-year innovation roadmap, custom vs enterprise vs hybrid trade-off, and modular architecture for faster delivery.
Enterprise data archival — $50M+ annual savings.
Tier-1 ANZ bank, 1,000+ apps, multi-petabyte estate. Cloud-native archival on AWS Lambda + S3 + DataSync + Step Functions, with self-service retrieval and AI-driven metadata. Unlocked legacy decommissioning.