Software engineer

Freelance Software Engineer

Self-Employed • Sydney, Australia | June 2025 - Present

Client: Australian logistics company (SME)

• Rebuilt logistics company's legacy operations system into cloud-based platform, improving maintainability, data accuracy, and daily user workflows
• Developed new features end-to-end across frontend (React) and backend (.NET), including customer operations dashboards and shipment tracking flows
• Worked closely with users, iterating quickly based on feedback to ensure smooth adoption
• Deployed and supported onboarding of internal staff into the new system

Technologies: React TS, Tanstack Router, Tanstack Query, Zod, Zustand, .NET, PostgreSQL, AWS (Lambda, API Gateway, S3, EC2), Docker, Vitest, xUnit

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Technical Consultant

Software consultancy (Bangkok, Thailand) • July 2022 - January 2025

Client: Large European bank (based in Brussels, Belgium)

• Worked on long-term project for large bank, initially on-site to collaborate on requirements, later continuing delivery remotely once trust and processes were established
• Collaborated closely with both client-side stakeholders and internal engineering teams, coordinating solution design, debugging, and production support across time zones
• Led technical investigation and resolution of complex data and system issues, communicating findings clearly to both engineers and business users
• Delivered customised ETL workflows and regulatory reporting components end-to-end, from requirements and implementation to deployment and post-production support
• Provided structured feedback to core product engineering team based on real customer usage patterns, while delivering interim fixes where needed

Technologies: C#, .NET, Python, AWS, PostgreSQL

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Software Developer (Frontend)

Software consultancy (Bangkok, Thailand) • January 2019 - June 2022

• Built and maintained scalable front-end features for large React SPA, including financial dashboards, dynamic forms, and multi-page flows
• Developed reusable core components and established code patterns to ensure consistency, quality, and maintainability across large shared codebase
• Mentored new team members on workflows, codebase structure, and best practices, while conducting regular code reviews
• Led small cross-functional team as main point of contact, ensuring timely feature delivery and collaboration across roles

Technologies: React, JavaScript, React Router, Apollo Client, Redux, Tanstack-Table, React-Hook-Form

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Software Developer (Backend)

Software consultancy (Bangkok, Thailand) • January 2018 - January 2019

• Developed RESTful and GraphQL APIs in C#, implementing complex business logic within microservices architecture
• Worked on inter-service communication using HTTPS and Kafka messaging for synchronous and asynchronous workflows
• Maintained database versioning and migration processes with Python to ensure consistency across environments
• Maintained Docker Swarm deployment script to standardise microservices deployment

Technologies: C#, .NET, Python, Kafka, Docker

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Projects & Initiatives

TimetableX (React, Node.js, AWS)

• Personal project helping university students plan weekly timetables, including automated suggestion feature selecting optimal class combinations based on personal preferences
• Designed full-stack architecture and deployed to AWS
• Built responsive UI and real-time timetable logic
• Serves real student users today

GovHack 2025 — Chrome Extension for Policy Verification (JS, Python, RAG/OpenAI)

• Chrome extension cross-referencing online claims with official Australian legal and government documents to support source verification

Google Chrome Built-in AI Challenge — Smart Calendar Conflict Detector

• Chrome extension detecting scheduling conflicts using on-device AI with strong emphasis on privacy and user control

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