I am a Singapore-based cloud architect and engineering leader with 17+ years of experience building enterprise systems that scale and continue operating when things go wrong. My career spans high-availability platforms, distributed systems, and cloud-native architectures in mission-critical environments. I believe the best leaders stay hands-on, close to the code, the architecture, and the people. Recently, I have been exploring how AI agents can safely interact with real enterprise systems, moving beyond demos into production-ready integrations.
I write about production AI agents, MCP servers, and cloud infrastructure at blog.jztan.com.
Why Claude Code can't read large PDFs, and the MCP server I built to fix it.
Eight disciplines for building LLM systems that actually hold up under load.
What goes wrong in production, and the patterns I use to catch it.
Authentication, safety, and everything that broke before it worked.
The cross-region sync problem that broke us, and the serverless fix.
GDC Technology • Jan 2022 - Present
• Directed architecture and industry acceptance of Digital Cinema Enterprise Software Solutions, sustaining GDC leadership in the digital cinema space.
• Led and mentored a distributed team of more than 10 engineers across two regions, improving delivery efficiency by 20 percent and developing future senior leaders.
• Architected and owned AWS serverless service platforms supporting mission-critical operations, achieving 50 percent scalability improvement and reducing operational overhead by 40 percent.
GDC Technology • Jan 2013 - Dec 2021
Titles held: Senior R&D Manager, R&D Manager, Deputy R&D Manager
• Built and scaled cross-functional engineering teams during periods of rapid organizational growth.
• Acted as technical liaison with industry standards bodies and strategic customers, aligning product direction with evolving requirements.
• Led design and delivery of second-generation Theatre Management System (Cinema Automation 2.0), modernizing cinema operations.
• Introduced modern SDLC practices including Git-Flow, JIRA, Confluence, and Kanban, reducing development cycles by 30 percent.
GDC Technology • Jul 2007 - Dec 2012
Titles held: Senior R&D Engineer, R&D Engineer
• Designed and delivered first-generation Theatre Management System deployed across large cineplex environments.
• Developed electronic cinema playback systems with HDCP security compliance and high reliability requirements.
Cyberlink • Jun 2006 - May 2007
• Developed multimedia software solutions in Python, C++, and DirectShow for global OEM partners including HP, Dell, and NEC.
Bachelor of Science (BSc) Computer Science • Jun 2006
Experienced engineering leader with deep expertise in cloud architecture, enterprise SaaS platforms, and modern software development practices. Strong hands-on background in AWS, serverless computing, distributed systems, and AI integration. Proven track record leading teams, modernizing legacy platforms, and delivering reliable systems in mission-critical environments. I focus on building technology that is practical, scalable, and operationally sound.
AI agent observability
Summary:
Open-source CLI for AI agent observability, context masking, regression testing, and HTTP API. v2.0+, published on PyPI.
Highlights:
• CLI tool for tracing and observing AI agent behaviour in production.
• Context masking for safe logging of sensitive data.
• Regression testing support and HTTP API for integration.
Tech Stack:
MCP server
Summary:
MCP server that lets Claude Code and AI agents read PDFs beyond their token limits. Strong community traction.
Highlights:
• Solves Claude Code's large-PDF token limit with a lightweight MCP server.
• Built on FastMCP; published on PyPI with strong community adoption.
• Used in production AI agent workflows.
Tech Stack:
AI Integration & Developer Tools
Summary:
Production-ready Model Context Protocol server enabling AI assistants to interact with enterprise Redmine systems with strong security and operational guarantees.
Highlights:
• Built production-ready MCP server using FastMCP, enabling AI agents to manage enterprise project workflows programmatically.
• Implemented secure authentication supporting API keys and credential-based access with automatic session handling.
• Designed modular architecture with testing and Docker-based deployment for scalable production use.
• Implemented secure file handling with automatic expiry and cleanup for enterprise compliance.
• Published to PyPI with full documentation to support community adoption.
Tech Stack: