I'm Desmond
Technology Architect
Technology Architect and Full-Stack Developer with 4+ years' experience delivering enterprise cloud and AI solutions. Proven track record building production LLM/RAG pipelines and scalable Next.js + Spring Boot platforms.
About Me
( 01 )
Technology Architect and Full-Stack Developer with 4+ years' experience delivering enterprise cloud and AI solutions. Proven track record building production LLM/RAG pipelines and scalable Next.js + Spring Boot platforms, reducing deployment time (~60→15 min), improving image throughput (+30%) and launching ChillEasy serving 100+ active users.
04+
Years of experience
100+
Active users served
05
Professional roles
Language
Cantonese
English
Mandarin
Experience
( 02 )
12/2025 – Present
Technology Architect
Fulltime
- Lead evaluation and design of fit-for-purpose technical architectures for corporate use cases, balancing requirements, cost, security and operational risk.
- Built LLM-based pipelines to extract and visualize business flows from recorded voice data; designed transcription, preprocessing, retrieval (RAG) and visualization components.
- Collaborated with AWS, internal security and infrastructure teams to prepare the solution for production movement.
- Gathered and translated stakeholder requirements into technical specifications; executed technical PoCs and coordinated vendor integrations.
05/2024 – 12/2025
Analyst Programmer
Fulltime
- Designed and operated multi-cloud infrastructure (AWS, Alibaba Cloud) and on-prem Linux stacks; automated provisioning and deployments with Jenkins, Docker and Git hooks, reducing average deployment time from ~60 minutes to ~15 minutes.
- Implemented CI/CD pipelines and deployment automation, increasing production release cadence from 1 to 4 releases/week.
- Designed middleware solutions using RabbitMQ to handle image-processing memory constraints and Redis for a high-performance URL shortener service; increased image throughput by ~30%.
- Developed AI/ML tools and automation: built a prototype RAG customer-service chatbot on Alibaba Cloud Bailian, and implemented a news auto-scraping + multi-class tagging pipeline that reduced manual tagging from ~4 hours to ~1 hour.
04/2023 – 04/2024
Programmer
Fulltime
- Owned end-to-end development of a B2B platform (ChillEasy): Next.js frontend and Spring Boot backend; designed REST APIs, integrated PayDollar payment gateway and implemented database schemas.
- Supported more than 100 active users and coordinated 3rd-party service integrations to enable online transactions.
- Resolved high-concurrency data integrity issues through JMeter-driven load testing and JPA pessimistic locking, preventing duplicate transactions under peak load.
- Performed system maintenance, monitoring and performance tuning to ensure reliability in production environments.
09/2022 – 03/2023
Programmer
Fulltime
- Developed and maintained modules in the Pharmacy Medicine System (PMS) using Adobe Flex and Java, focusing on backend stability and interface performance.
- Optimized backend queries and APIs to improve response times and user experience for clinical workflows.
- Conducted system testing, produced QA reports and supported rollout activities.
08/2021 – 08/2022
Research Assistant
Fulltime
- Developed an NLP counseling chatbot using Python and Transformer-based models; prepared data pipelines and training scripts for experiments.
- Conducted user studies and iterative evaluation to improve dialog handling and user satisfaction metrics.
- Curated and annotated text datasets for model training and published research outcomes in collaboration with the team.
Education & Skills
( 03 )
Cloud & DevOps
Alibaba Cloud, AWS, Docker, Jenkins, CI/CD, Git
Languages & Frameworks
Python, Java, TypeScript, Next.js, Spring Boot, Flask
AI / ML & Data
PyTorch, Transformers, RAG, scikit-learn, Pandas, NumPy
Databases & Middleware
MySQL, Oracle, MongoDB, Redis, RabbitMQ
Platforms & Tools
Linux, macOS, Nginx, JMeter, Apache
Selected Projects
( 04 )