Software Engineer (Mid) at PylonAI (Tiong Seng Group)

Developed and maintained backend services using FastAPI, including restoring an EC2 service (~140 DAU) within 30 minutes by renewing an expired EC2 SSL certificate and preventing prolonged login outages in production. Designed and implemented an end-to-end event-driven notification system using cron jobs and WebSockets to enable real-time and scheduled notifications. Improved multi-product monitoring by implementing centralized Grafana dashboards (Loki + Prometheus) with custom alert thresholds for proactive issue detection. Standardized external API authentication for 2 integrations by building a centralized token refresh service in Docker, eliminating duplicated logic and reducing auth failures. Built GitHub Actions CI/CD pipelines to automate Docker image deployment, remote EC2 updates, and service restarts for consistent one-click production releases.

Cloud Enterprise Software Engineer at Olli on APAC (formerly STT Cloud)

Handled backend engineering for enterprise systems, with performance and reliability improvements across APIs, database integration, and compliance-related workflows.

Cloud Enterprise Software Engineer at Olli on APAC (formerly STT Cloud)

Automated financial compliance workflows. Managed the Go backend codebase, reducing issue resolution time by ~40%. Designed and implemented RESTful and gRPC APIs with 95% test coverage to support compliance workflows, improving system reliability by ~20%. Optimized request handling using Go concurrency (goroutines and channels) to enable parallel I/O-bound task processing and reduce latency under high-load conditions. Transitioned services from GoRMV2 to GoRMV1 leveraging an internal library, improving compatibility and stability by ~20%. Integrated Neo4j graph database to support multiple services behind an API and improved query response time by ~25% (using PostgreSQL for detailed requests).