About me
Hard-working person on the way to the success…
Application development lead with 18+ years of experience in full-stack development, solution architecture, cloud infrastructure and team leadership. Currently leading application development and DevOps at Cloras, covering an online casino platform, real-time H5 games, AWS infrastructure, monitoring and AI-assisted engineering. Strong information technology professional with a Bachelor focused in Computer Science from The Hong Kong University of Science and Technology.
Creative
Developing, distributing, supporting, enforcing, and integrating best practices and technology standards
Motivated
To complete a task, even when challenging, without giving up or needing another to encourage.
Punctual
Punctual and dependable in order to meet the needs of client
Personal Info
- Name:
- Rex Choi
- Date of Birth:
- 23/09/1986
- Phone:
- 852 – 9582 0258
- Email:
- rex.0510@gmail.com
Pro. Experience
- 01/2023 – present
- Cloras
- Application Development Lead
- 01/2022 – 02/2023
- Ideograms
- Director of Application Development
- 04/2016 – 12/2021
- Alliance Computer System Ltd.
- Director of Application Development
My Professional skills
- 18+ years of IT experience, including 10+ years leading development teams and projects.
- Lead application development and DevOps for an online casino platform and its real-time H5 games.
- Overall architect of BOOKYAY, a Hong Kong and Macau ticketing and e-commerce platform, leading a team of around 10 developers.
- Structured and revamped 20+ web applications and 30+ online games for one of the largest online casinos in Asia with ReactJS and other cutting-edge technologies.
- AWS (ECS/Fargate, S3, CloudFront, WAF, Athena, IAM), GitLab CI/CD, Docker and nginx; cut one environment's container compute cost by 68% with Fargate Spot.
- Monitoring and observability with Prometheus, Grafana, node_exporter and self-hosted Sentry.
- AI engineering: LLM customer-service assistant with policy-gated escalation, and multi-agent development and QA workflows with Claude Code.
- Frontend: React, TypeScript, Tailwind CSS, Storybook design systems, PixiJS and Phaser.
- Established a fully automated build and deployment infrastructure with gitlab runner which reduce release cycle time by 30%+.
- Excellent communication and Inter-Personal Skills, well organized, goal oriented.