Projects
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NZ Open Banking Platform
Spring Boot + Kafka backend implementing CDR/FAPI 2.0-style consent and account APIs, paired with a Spring AI + RAG compliance assistant on AWS Bedrock (pgvector retrieval, low-temperature generation to minimise hallucination). Targets the NZ Open Banking standard coming into effect December 2025.
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Event-Driven Supply Chain Platform
Kafka-based distributed workflow engine for inventory and reverse logistics, consolidating five legacy systems into one unified platform. Sustained 99.99% availability at Meituan scale using transactional outbox pattern, Redis distributed locks, and optimised read paths.
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Fastsale — High-Concurrency Flash Sale System
Multi-layer Redis caching, async Kafka processing, and overload protection designed to sustain 1000+ QPS during peak promotional events at Meituan with zero critical failures. Includes capacity planning, distributed rate limiting, and graceful degradation.
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Subscription SaaS Platform (Appzgate)
End-to-end ownership from architecture to production: Java/Spring Boot + C#/ASP.NET Core APIs, Keycloak OAuth2/OIDC IAM, React storefront, Odoo ERP integration, payment terminal SDKs (Windcave, Smartpay), deployed on AWS ECS via Terraform with automated CI/CD.
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