Full‑Stack & Embedded / IoT Engineer
20+ years building end‑to‑end IoT products - hardware & sensors, low‑power firmware, cloud backend, and React Native mobile apps (iOS & Android).
- Location: Dargaville, Auckland, New Zealand
- Email: zoli@ztech.nz
- Phone: +64 21 724184
About
I build practical, reliable IoT systems from prototype to production - combining embedded firmware, electronics fundamentals, and full-stack software. I’m strongest when I can own the system end-to-end: device → connectivity → backend → UI, with a focus on robustness, low power, and maintainability.
Core skills
Selected projects
Atlantis POS & Web Platform (2016 – Present)
Full‑stack business management platform: POS, orders, invoicing, stock management, and multi‑user access, plus an integrated website builder with domain and email management.
- Designed and developed end‑to‑end POS workflows (orders, invoicing, stock, multi‑user access).
- Implemented PAYE and GST calculation features for business use.
- Built website builder tooling with domain + email management capabilities.
- Maintained a stable production system in continuous real‑world use since 2016.
Mooring Watch Boat Alarm (2022 – Present)
End-to-end marine security system. Built firmware, backend services, and the user-facing interface.
- Owned system architecture across device, connectivity, cloud, and UI.
- Implemented sensor/event logic and alert workflow.
- Designed for field reliability and maintainable updates.
- Developed the companion mobile app in React Native (alerts, device status, and configuration workflows).
Water Tank Level Sensor (2025 – Present)
Solar-powered remote monitoring device using a low power SIMCom cellular module.
- Designed firmware for low power operation and reliable reporting.
- Integrated sensing and connectivity with robust error handling.
GPS Tracker with Roll-Over Detection (2025 – Present)
Compact tracker with tilt/motion sensing and cloud integration.
- Implemented roll-over / motion event detection logic.
- Integrated device telemetry with backend processing.
Infrared Heat Camera Prototype
Low‑resolution thermal imaging prototype for early fire detection.
- Built proof‑of‑concept pipeline from sensor capture to usable output.
- Explored detection thresholds and noise/false positive handling.
Mobile apps (iOS & Android)
I build and maintain production mobile apps (React Native) published under my developer accounts.
Contact
Best way to reach me: zoli@ztech.nz
Open to Embedded / IoT / Full‑stack roles (onsite/remote depending on role).