Product Engineer — Founding Team Mirror Mirror AI
I owned product areas end-to-end as a founding-team engineer, from problem research and product and system design through implementation. I built production features using Next.js, React, TanStack Query, Django, Python, and AWS.
I designed and implemented a tiered subscription and credit top-up model, including plan logic, usage metering, entitlements, and Stripe webhook flows. I strengthened entitlement reliability with Django row-level locking and transactional operations, improved API-key comparison security, and built fault-tolerant Celery webhook and licensing pipelines with retries and exponential backoff.
I rebuilt and launched the public company website from zero in three days as the sole engineer. I also supported rollout with proof-of-concept, enterprise, and design-partner customers, translating feedback into product decisions and iterating AI image-generation prompts and workflows.