Experience

Where I've worked and what I've done.

PayPal Holdings Inc. logo

Software Engineer Intern

Incoming
PayPal Holdings Inc.Global ComplianceJun 2026 - Dec 20267 months
  • Supporting the Global Compliance team
Home Team Science & Technology Academy (HTX) logo

Software/AI Engineer Intern

Current
Home Team Science & Technology Academy (HTX)xDigitalDec 2025 - Apr 20265 months
  • Solely engineered and deployed a production-grade prompt optimisation platform (Next.js, FastAPI, Kubernetes, AWS), utilising MLflow to orchestrate GEPA and DSPy workflows for automated, metric-driven prompt tuning across the organisation.
  • Developed the department's centralised product portal (Next.js, Nest.js), delivering a unified full-stack web interface that streamlines internal access to all deployed AI tools and microservices.
  • Led LLM model integrations and benchmarking, utilising NIAN and RULER protocols to rigorously stress-test context retrieval and validate model performance prior to rollout.
Next.jsFastAPINest.jsPythonTypescriptKubernetesDockerPrometheusGrafanaAWSGitLabPandasMLflowLLMs
Central Provident Fund Board (CPF Board) logo

Java Developer Intern

Central Provident Fund Board (CPF Board)Investment SystemsMay 2025 - Oct 20256 months
  • Developed Spring Batch jobs integrated with Mainframe via JCL; migrated 10+ COBOL components to Java; built APIs using Spring and validated with SoapUI; implemented JUnit tests that reduced UAT defects by ~30%.
  • Optimised Spring Batch jobs through performance profiling with Java Flight Recorder and JDK Mission Control, reducing average execution time by ~30%.
  • Pioneered transition to automated regression testing with UiPath scripts and Python tools, cutting testing time by ~70%.
  • Resolved production issues and maintained build quality using Azure DevOps, Jenkins, SonarQube, and Jennifer APM across all SDLC phases (DEV → SIT → UAT → PROD).
JavaSpringIBM MainframeJUnitUiPathSoapUIPythonJCLSQLIBM Db2Azure DevOpsJenkinsSonarQubeJennifer APM
Energy Wave Worldwide Pte Ltd logo

Operations & Process Improvement Intern

Energy Wave Worldwide Pte LtdLogistics DepartmentSep 2020 - Feb 20216 months
  • Spearheaded the shift from manual Excel tracking to an inventory management system (Orca Scan), introducing VBA automation for inventory and accounts, cutting manual entry by 50% and maintaining 100% stock accuracy.
  • Pioneered a Kanban workflow system to visualise tasks, improve communication, and streamline processes, boosting efficiency by 25% and reducing turnaround times by 30%.
  • Managed five special-needs staff through structured task delegation, improving timeliness and productivity by 50%.
VBAOrca ScanMicrosoft Excel