Experience

Nov 2025 – May 2026

Led Traefik migration across HK, JP, Malaysia, Thailand, evaluating reverse proxy options and deciding Traefik for its native Gateway API support
Helped teams debug migration issues: SSL certificates, TLS secrets, client-side cert warnings, and preserving original nginx-ingress load balancer IPs
Authored migration documentation and provided Helm templates for standardized Traefik deployments across regions
Built a frontend tool to transform Ingress files to HTTPRoute resources, reducing migration effort and errors
Enhanced security by routing domains through F5 Distributed Cloud, managing IP ranges for Zscaler, AWS, and Azure
Identified attack traffic via Elasticsearch queries in Kubernetes clusters and blocked malicious sources at CloudFront level
Managed subnets for load balancer provisioning and enabled cross-zone load balancing for high availability

Feb 2025 – Nov 2025

Built Python and Node.js MCP (Model Context Protocol) servers and hosts for chatbot applications serving internal and external users
Wrote C# code for core APIs deployed to ECS
Wrote Terraform for cloud resource provisioning: load balancer rules, ECS services, ECR repos, domain zones, IAM roles
Wrote Kubernetes manifests for AI projects on EKS: Deployment, Service (ClusterIP/LoadBalancer), Ingress resources
Built CI/CD pipelines in Azure Pipelines and Releases: testing, image build/push, artifact management, env-specific deployment
Implemented RAG (Retrieval-Augmented Generation) pipelines to improve LLM responses with company data
Debugged CDN network issues across EdgeNext and Amazon CloudFront

Apr 2024 – Dec 2024

Built an interactive graph visualization frontend with React.js, Firebase auth (GitHub), and GitHub API integration
Engineered 3D force-directed graph rendering using extended D3.js libraries and Octree (vs Quadtree), re-implemented in C++ for Unreal Engine 5
Developed blockchain tooling with Web3 for automated ERC-20 token deployment: Solidity, ABI/bytecode, transaction building
Studied decentralized exchange mechanics (PancakeSwap) including automated market maker pricing
Used GitLab CI/CD for website and backend server deployment

Mar 2022 – Mar 2024

Architected and developed learning platforms using React.js with responsive design for desktop and mobile
Set up MongoDB clusters and Firestore for user data, utilized Azure and GCP for cloud hosting
Integrated generative AI (GPT-3.5) for content generation and chatbot interactions
Implemented speech services: Speech-to-Text and Pronunciation Assessment for oral learning
Created Docker development environments for standardized local setups across the team
Built CI/CD with GitHub Actions for automated React builds and Firebase Hosting deployment

2020 – 2022

Facilitated learning and developed course materials for Database Management Systems (SQL, PL/SQL, PostgreSQL) and Operating Systems (process management, scheduling, memory management)

May 2020 – Aug 2020

Developed OCR algorithms to auto-detect contract amendments across multiple languages, deployed on Linux

Jun 2019 – Dec 2019

Built customer survey insight and visualization tools, client segmentation models, and automated report generation with embedded graphs

Dec 2018 – Jan 2019

Developed a chatbot system for a Fortune 500 company using automatic text summarization and TF-IDF keyword analysis

Luk Ka Chun