Daniel – React, Node.js, Typescript

An all-in-one financial services and payments platform that empowers businesses across Australia and the UK to manage their cash flow from a single hub. By unifying EFTPOS hardware, POS systems, and fee-free business banking accounts, it allows merchants to seamlessly accept payments, track expenses, and control their finances without the burden of traditional banking fees.

• Designed the integration system around a complex event-driven architecture implementing CQRS, the Saga pattern, Event Sourcing, and materialized views on an AWS serverless stack to reliably process 100K+ events daily. • Executed a critical architectural database uplift, migrating legacy systems from single-tenant to multi-tenant structure, ensuring strict data isolation for 130K+ merchants and enabling expansion into the UK market. • Engineered automated production database migration pipelines and resilient event-replay scripts using AWS CodeBuild and ECS, guaranteeing consistency across distributed microservices and reducing manual recovery time. • Architected and engineered a highly scalable accounting integration adapter enabling merchants to sync transaction data with third-party accounting software such as Xero and MYOB. • Authored comprehensive technical design documents and deep-dive guides on the platform’s implementation of event sourcing, message queuing, and projection handlers to accelerate onboarding and align Product and Engineering teams.

A web-based Spatial Data Operating System that unifies 3D scans, BIM, and imagery within a single platform. It enables teams to easily visualize, annotate, and collaborate on complex spatial data without requiring heavy software installations. Ultimately, it transforms raw reality-capture data into actionable, easily shareable insights.

• Architected and led a data management system for heavy spatial data, building a tree-node-structured file system enabling reliable multi-part S3 uploads for 3D scan and BIM files up to 5TB. • Engineered an asynchronous AWS event-driven pipeline (SNS, SQS, Lambda, Fargate) to batch-process massive reality-capture files, preventing server throttling and ensuring high availability during heavy persistence loads. • Directed a 4-person engineering team, translating complex business requirements into scalable domain models and system architectures while managing timelines and authoring detailed technical feature stories. • Integrated Mongo Atlas Search and custom pagination into the core querying engine, enabling full-text search and reducing API response times. • Provisioned scalable frontend cloud infrastructure using S3 and CloudFront and used Pulumi to make environments fully reproducible and cloneable. • Spearheaded migration from REST APIs to GraphQL, standardizing data fetching, eliminating endpoint bloat, and improving client-side rendering efficiency. • Containerized backend architecture with Docker and automated deployments to AWS Elastic Beanstalk via ECR, paired with custom CI/CD pipelines in CircleCI and Bitbucket to reduce manual release overhead. • Executed end-to-end migration of the Internal Operations Platform from legacy Ruby on Rails to a modern React, Node.js, and MongoDB/Mongoose stack, improving maintainability and developer velocity.

A Taiwan-based digital marketing agency that provides B2B enterprises with custom web design, system integration, and global SEO/SEM solutions to enhance their digital presence and drive international lead generation.

• Configured the initial CMS environment for e-commerce projects, translating project scope into functional site structures and enabling clients to independently manage catalogs of 100+ products. • Engineered core server-side e-commerce functionality in PHP, developing secure data-handling endpoints, session management, and custom logic to reliably process shopping cart operations.

A Taiwan-based digital strategy consultancy and startup ecosystem focused on corporate digital transformation and tech talent cultivation. The organization provides digital marketing services, system integration consulting, and tech events to help traditional industries modernize and support new ventures as they scale.

• Developed a full-stack forum web application using PHP and JavaScript, building interactive UI components and structuring the database to facilitate user discussions. • Maintained and optimized a core backend system built with Node.js and Express, resolving bug tickets and ensuring stable server performance. • Designed and implemented new RESTful API endpoints in Node.js to support emerging business requirements and integrate server-side logic with the frontend for new features.