Lead end-to-end architecture and execution for key client products, mentor engineering teams in Next.js and cloud-native patterns, drive client-facing technical strategy and pre-sales scoping, own technical escalations and production SLAs, and write code when needed to ensure security, scalability, and delivery.

Integrate two new hardware devices into an existing Flutter app: define protocols, extend BLE communication library, implement BLE security (pairing/authentication/encryption), ensure high reliability with automated tests (95%+), debug cross-layer issues (app, OS BLE stacks, firmware), and produce comprehensive documentation.