Jun 2024 - Present

• Developing an async extension in Go for the synchronous C++ traffic security platform, enabling advanced rule execution and decision-making processes.
• Developed PySpark jobs to analyse Hive dumps from live MySQL databases, identifying 80% of unused data cached in Redis for the C++ traffic security platform, optimising storage costs and performance by resolving the Redis big key problem.

Tech Stack

Jan 2024 - May 2024

• Developed an MVP Flink-based near real-time rule engine for a traffic security platform, enabling a comparative analysis of real-time and async processing, ultimately leading to the adoption of an async engine based on product requirements.
• Developed a Go event bus middleware to route events to a custom Kafka message queue, facilitating usage of existing Kafka Flink adapters for faster MVP delivery, while also implementing RPC/Redis integrations, testing core components, and establishing group chat alerts as the foundation for a dedicated alerts and response microservice.

Tech Stack

Nov 2022 - Jul 2023

• Architected, developed and deployed several new microservices, facilitating seamless bank transfers or credit/debit card payments between ByteDance and esteemed financial institutions like Citibank, Kasikornbank, AppotaPay, and Maybank.
• Integrated new endpoints with 90% unit test coverage by leveraging the capabilities of Citibank and JP Morgan backend systems, introducing enhanced functionalities for the ByteDance backend system.
• Implemented request forwarding services and facilitated the deployment of microservices onto a new cluster, playing a key role in TikTok's Project Texas to enhance the security of US data.
• Assumed on-call responsibilities for a week, diligently monitoring critical alerts and warnings across the entire backend systems of banking microservices, and successfully developing effective mitigation plans in response.

Tech Stack

May 2022 - Aug 2022

• Migrated deprecated AngularJS frontend to Angular 12 for Ascenda's global loyalty platforms, ensuring compatibility with Google's patches and maintaining security standards for major banks and airlines handling sensitive information.
• Engineered highly customizable and reusable Angular components, empowering developers to seamlessly integrate client-specific functionality and styling requirements, minimizing code duplication and enhancing scalability.
• Collaborated with the team by conducting thorough code reviews, ensuring adherence to high-quality coding standards, thereby reducing QA time and enabling the team to deploy new features rapidly.

Ascenda serves many clients worldwide. Here are some of the clients' websites powered by Ascenda.

• OCBC
• CTBC
• FAB
• AMEX x Hyundai
• JAL
• China Eastern

Tech Stack

May 2021 - Aug 2021

• Refactored the React frontend and Rails backend of the GIC Sparks & Smiles (Sparks) application, resulting in a more than 10x decrease in loading times, enabling efficient mentoring of youths from high-needs households by dedicated volunteers.
• Enhanced Sparks' continuous integration pipeline by implementing Docker layer caching, resulting in a notable 50% reduction in pipeline run-time, significantly boosting developer productivity by enabling faster CI runtimes.
• Migrated the Rails backend of the Active Ageing Centres (AAC) application to Go, seamlessly integrating production data with the enhanced Go API to facilitate a smooth transition of 10 eldercare centers onto the new backend infrastructure.
• Streamlined volunteer matching for the AAC application by developing new React pages and Go API endpoints, enabling social workers to efficiently match volunteers with lower-income seniors, thereby reducing management overhead.

We wrote detailed write-ups on our work during the summer. They can be found here.

• AAC
• Sparks

Tech Stack