Senior Engineer at Xero

Led design and evolution of billing/subscription microservices across Xero's platform; implemented event-driven C#/.NET services with robust retry for financial transactions; built, deployed, and maintained scalable billing APIs with Terraform and GitHub Actions for automated releases; managed AWS infrastructure with Docker and Kubernetes, improving uptime and observability of critical workflows; boosted code quality via unit/integration tests (xUnit, Moq) and static analysis (SonarQube), increasing test coverage from 45% to 82%; contributed to architecture docs and design discussions; mentored junior engineers and participated in on-call incident response.

Software Developer at Unleashed

Developed backend services in C#/.NET with ASP.NET Core WebAPI; implemented microservice workflows using Docker and AWS ECS; built standardized API clients and idempotent API calls; added structured logging with Serilog for real-time monitoring; established CI/CD pipelines and Agile practices to deliver production services.

Contract Developer at Bank of China International (BOCI)

Developed C# services to consume Sophis real-time data feeds for reporting and risk; migrated legacy VB.NET reporting systems to C# (WPF) to improve maintainability and performance; upgraded team development environment and implemented Git-based version control for standardized workflows.