Based in AustraliaHello,
Hello,
I'm Sian
Product Engineer · Design-Informed
Building backend systems that hold up, and products that make sense to use.
c.yuhsuann
Product Engineer · Design-Informed
Building backend systems that hold up, and products that make sense to use.
Sole backend engineer on QuantalAI's AI meeting intelligence platform. Designed Temporal-based workflow architecture replacing SQS/SNS pipelines, enabling reliable retries and long-running LLM agent workflows. First confirmed enterprise client is an Australian mining company.
Delivered a complete booking and payment system end-to-end as part of the internship at QuantalAI, completing Stripe payment integration, AWS Cognito authentication, and booking flow logic ahead of commercial launch.
Led a 4-person design team to deliver a mental health app MVP for international students in Australia within a 6 weeks sprint, running 2 rounds of usability testing with 12 participants each.
Building backend systems that hold up, and products that make sense to use.
I'm a Product Engineer with a background in both system architecture and product thinking. I work closest to the backend, designing APIs, integrating services, and turning ambiguous requirements into stable, working systems.
What makes my work different is that I've also done the design side. I've led UX sprints, conducted user testing, and shipped interfaces, which means I can work directly with founders and PMs without losing things in translation.
Open to product and engineering roles where craft and clarity matter.
Whether you have a product challenge, a technical problem, or just want to connect, I'm always happy to chat.