FOSSASIA Summit 2026, March 2026
This talk explores how Neo4j-powered knowledge graphs can help historians structure fragmented data and uncover meaningful relationships across time, geography, and artifacts. It also demonstrates how combining Generative AI with tools like Model Context Protocol enables intuitive querying, semantic enrichment, and deeper insights, empowering researchers to interact with and interpret complex historical datasets more effectively.
NODES 2025, November 2025
This talk explores how Neo4j-powered knowledge graphs can help historians structure fragmented data and uncover meaningful relationships across time, geography, and artifacts. It also demonstrates how combining Generative AI with tools like Model Context Protocol enables intuitive querying, semantic enrichment, and deeper insights, empowering researchers to interact with and interpret complex historical datasets more effectively.
Unlocking the Power of Graph Databases with Neo4j
Graph Database Singapore, May 2025
This workshop introduces graph databases and demonstrates how Neo4j enables intuitive modeling and analysis of highly connected data for use cases like recommendations and fraud detection. Participants will gain hands-on experience with the Cypher Query Language, advanced functions, and data import techniques, equipping them to design, query, and optimize graph-based solutions effectively.
FOSSASIA Summit 2025, April 2025
This workshop introduces graph databases and demonstrates how Neo4j enables intuitive modeling and analysis of highly connected data for use cases like recommendations and fraud detection. Participants will gain hands-on experience with the Cypher Query Language, advanced functions, and data import techniques, equipping them to design, query, and optimize graph-based solutions effectively.
Connected: Solving Real-Life Problems Using Python and Graph Databases
Open Tech Summit Indonesia 2024, November 2024
This session explores how graph-based approaches overcome the limitations of traditional databases for modeling complex, highly connected systems, highlighting the strengths of Neo4j in representing real-world relationships. It also demonstrates how integrating Neo4j with Python tools like NetworkX and PyVis enables effective analysis and visualization of network data in cloud environments.
Connected: Solving Real-Life Problems Using Python and Graph Databases
Singapore AWS Meetup, January 2024
This session explores how graph-based approaches overcome the limitations of traditional databases for modeling complex, highly connected systems, highlighting the strengths of Neo4j in representing real-world relationships. It also demonstrates how integrating Neo4j with Python tools like NetworkX and PyVis enables effective analysis and visualization of network data in cloud environments.
Connected: Solving Real-Life Problems Using Python and Graph Databases
PyCon ID 2023, Novermber 2023
This session explores how graph-based approaches overcome the limitations of traditional databases for modeling complex, highly connected systems, highlighting the strengths of Neo4j in representing real-world relationships. It also demonstrates how integrating Neo4j with Python tools like NetworkX and PyVis enables effective analysis and visualization of network data in cloud environments.
FOSSAIA Summit 2022, April 2022
This session shares a practical journey of scaling WordPress on Amazon Web Services, moving from a basic lift-and-shift setup to a resilient, high-performance architecture capable of handling peak traffic events like Black Friday. It covers key design decisions and components—including Amazon CloudFront, Application Load Balancer, Amazon S3, and the choice between Nginx and Apache HTTP Server—to build a scalable and cost-efficient solution.
Building scalable WordPress site on AWS
Singapore AWS Meetup, October 2021
This session shares a practical journey of scaling WordPress on Amazon Web Services, moving from a basic lift-and-shift setup to a resilient, high-performance architecture capable of handling peak traffic events like Black Friday. It covers key design decisions and components—including Amazon CloudFront, Application Load Balancer, Amazon S3, and the choice between Nginx and Apache HTTP Server—to build a scalable and cost-efficient solution.
NDC Sydney 2020, October 2020
This session explores the modern front-end security landscape, showing why relying on frameworks or static sites alone is not enough to prevent threats like Cross-site scripting and client-side attacks. It highlights the evolving tactics used by attackers and presents practical strategies, including defenses like Content Security Policy, to help developers build more secure and resilient JavaScript applications.
Demystifying Front-End Security
JavaScript Remote Conference 2020, May 2020
This session explores the modern front-end security landscape, showing why relying on frameworks or static sites alone is not enough to prevent threats like Cross-site scripting and client-side attacks. It highlights the evolving tactics used by attackers and presents practical strategies, including defenses like Content Security Policy, to help developers build more secure and resilient JavaScript applications.
Demystifying Front-End Security
ThatConference 2019, August 2019
This session explores the modern front-end security landscape, showing why relying on frameworks or static sites alone is not enough to prevent threats like Cross-site scripting and client-side attacks. It highlights the evolving tactics used by attackers and presents practical strategies, including defenses like Content Security Policy, to help developers build more secure and resilient JavaScript applications.
FOSSASIA Summit 2019, March 2019
This session demonstrates how to secure React applications without building security systems from scratch, using a boilerplate approach with preconfigured SSO and reusable authentication components. It highlights integrating IdentityServer4 for identity management alongside secure routing, token handling, and claims-based authorization to streamline robust front-end security.
SingaporeJS, July 2018
This session introduces how developers can build voice-enabled web applications using the Web Speech API, enabling both speech recognition and text-to-speech capabilities directly in the browser. Drawing inspiration from assistants like Siri and Google Now, it demonstrates how to create interactive, Siri-like experiences without requiring advanced expertise in machine learning or speech processing.
FOSSASIA Summit 2018, March 2018
This session explores how ASP.NET Core and .NET Core enable high-performance, cross-platform web development, from local environments to Linux and containerized deployments. It covers practical performance optimization techniques—such as caching, I/O improvements, and message queuing—along with real-world strategies for identifying and resolving bottlenecks early in the development lifecycle.
FOSSASIA Summit 2018, March 2018
This session highlights the critical role of database security as a final line of defense, demonstrating how PostgreSQL provides robust mechanisms for authentication, authorization, roles, and data encryption. It also presents best practices to safeguard sensitive data—even in the event of application compromise—offering principles that can be applied across various database systems.
Database Security for Developers
CFCamp 2017, October 2017
This session highlights the critical role of database security as a final line of defense, demonstrating how PostgreSQL provides robust mechanisms for authentication, authorization, roles, and data encryption. It also presents best practices to safeguard sensitive data—even in the event of application compromise—offering principles that can be applied across various database systems.
5th Scandinavian Conference on System and Software Safety, May 2016
This session challenges the notion that security issues are purely code-level bugs, highlighting—echoing insights from Gary McGraw—that design flaws are just as critical as implementation flaws in modern systems. It introduces architectural risk analysis as a proactive approach, guiding teams to identify assets, model threats, and assess risks early, while leveraging resources like OWASP and tools such as Fortify to strengthen application security from the ground up.
Web apps that talk
JS Remote Conf, March 2017
This session introduces how developers can build voice-enabled web applications using the Web Speech API, enabling both speech recognition and text-to-speech capabilities directly in the browser. Drawing inspiration from assistants like Siri and Google Now, it demonstrates how to create interactive, Siri-like experiences without requiring advanced expertise in machine learning or speech processing.
NDC London 2017, January 2017
This session explores the rising threat landscape alongside the rapid growth of Node.js, focusing on securing applications built with Express.js against common risks like injection attacks and other vulnerabilities. It provides practical guidance on authentication, cryptography, and security middleware, while mapping defenses to the OWASP Top 10 and introducing tools such as ScanJS to help developers build more secure applications.
NDC London 2017, January 2017
This session introduces how developers can build voice-enabled web applications using the Web Speech API, enabling both speech recognition and text-to-speech capabilities directly in the browser. Drawing inspiration from assistants like Siri and Google Now, it demonstrates how to create interactive, Siri-like experiences without requiring advanced expertise in machine learning or speech processing.
Agile web-development with RethinkDB
Percona Live Europe - Amsterdam 2016, October 2016
This session demonstrates how to build real-time applications using Node.js, ZeroMQ, and RethinkDB to deliver fast, reliable data across web and desktop clients. It covers key messaging patterns, cross-platform integration, and practical use cases, enabling developers and architects to design responsive systems for modern, data-intensive applications.
Scaling up JavaScript with TypeScript
Angular Remote Conf, September 2016
This session introduces TypeScript as a powerful tool for building large-scale applications, highlighting its features such as static typing, classes, interfaces, generics, and decorators. It provides practical guidance on when and how to adopt TypeScript—especially alongside frameworks like Angular—to improve maintainability and scalability in modern JavaScript projects.
Two-factor authentication with Node.js
JavaScript Summit 2016, February 2016
This session highlights the limitations of password-based security and introduces Two-factor authentication as a critical layer for protecting user accounts against common attacks. It explores standards and real-world implementations, including integrating Google Authenticator into Node.js applications to strengthen authentication flows.
DevFestMN 2016, February 2016
This session introduces TypeScript as a powerful tool for building large-scale applications, highlighting its features such as static typing, classes, interfaces, generics, and decorators. It provides practical guidance on when and how to adopt TypeScript—especially alongside frameworks like Angular—to improve maintainability and scalability in modern JavaScript projects.
Managing User Authentication Using Passport
NodeMN User Group, December 2015
This session explores how to implement robust authentication using Passport.js in Node.js and Express.js applications, centralizing and simplifying authentication logic. It demonstrates building form-based login, social authentication, and enhancing security with Two-factor authentication using Google Authenticator.
What's new in C# 6
Twin Cities .NET User Group, December 2015
This session introduces the key language improvements in C# 6, showing how features like null-conditional operators, string interpolation, expression-bodied members, and nameof make everyday development cleaner and more expressive. It gives developers a practical overview of how to adopt these enhancements to write more readable, maintainable, and modern C# code.
Node.js Security
Open Source North 2015, October 2015
This session explores the rising threat landscape alongside the rapid growth of Node.js, focusing on securing applications built with Express.js against common risks like injection attacks and other vulnerabilities. It provides practical guidance on authentication, cryptography, and security middleware, while mapping defenses to the OWASP Top 10 and introducing tools such as ScanJS to help developers build more secure applications.
Node.js Security
That Conference 2015, August 2015
This session explores the rising threat landscape alongside the rapid growth of Node.js, focusing on securing applications built with Express.js against common risks like injection attacks and other vulnerabilities. It provides practical guidance on authentication, cryptography, and security middleware, while mapping defenses to the OWASP Top 10 and introducing tools such as ScanJS to help developers build more secure applications.
WebRTC Workshop
dev.Objective() 2015, May 2015
This session introduces WebRTC, enabling browser-to-browser voice, video, and peer-to-peer data sharing without plugins. It covers its evolution, browser support, and security considerations, while demonstrating how to build real-time applications like video chat and file sharing using modern JavaScript and HTML5 APIs.
Introduction to TypeScript
Twin Cities .NET User Group, May 2015
This session introduces TypeScript as a powerful tool for building large-scale applications, highlighting its features such as static typing, classes, interfaces, generics, and decorators. It provides practical guidance on when and how to adopt TypeScript—especially alongside frameworks like Angular—to improve maintainability and scalability in modern JavaScript projects.
Introduction to TypeScript
JavaScriptMN User Group, April 2015
This session introduces TypeScript as a powerful tool for building large-scale applications, highlighting its features such as static typing, classes, interfaces, generics, and decorators. It provides practical guidance on when and how to adopt TypeScript—especially alongside frameworks like Angular—to improve maintainability and scalability in modern JavaScript projects.
WebRTC Workshop
DevFestMN 2015, March 2015
This session introduces WebRTC, enabling browser-to-browser voice, video, and peer-to-peer data sharing without plugins. It covers its evolution, browser support, and security considerations, while demonstrating how to build real-time applications like video chat and file sharing using modern JavaScript and HTML5 APIs.
