IoT Architect & Engineer Smart Delivery Lockers

SITE2GYM is developing its own smart delivery locker system for supplement order pickup. We are seeking an IoT Architect & Lead Engineer to design and implement the technical components of the locker ecosystem, including device connectivity, backend communication, remote unlock functionality, and integration with our employee portal and e-commerce platform.

If you enjoy architecting big-picture solutions and rolling up your sleeves to do the actual development, this role is perfect for you.

Location:

Key Responsibilities

• Build and maintain device-to-cloud communication using MQTT or REST APIs.
• Integrate locker controllers, sensors, and electronic locks with AWS IoT Core or vendor platforms.
• Design and develop backend functions for locker operations:
• Unlock commands
• Status reporting
• Door open/close events
• Locker availability
• Implement secure communication using certificates, policies, and TLS.
• Support firmware updates, device provisioning, and troubleshooting.
• Build and test features for customer pickup codes (PIN/QR).
• Work with web and backend teams to integrate locker actions into SITE2GYM systems.
• Support QA with IoT-specific test cases and device testing.

Required Qualifications

• 5+ years experience in building IoT systems or integrating connected devices.
• Strong understanding of MQTT, AWS IoT Core, REST APIs, and secure IoT communication.
• Experience with embedded hardware or microcontrollers (ESP32, STM32, Raspberry Pi, etc.).
• Backend development skills (Node.js, Python, or similar).
• Experience debugging hardware-software interactions.
• Knowledge of device provisioning, certificates, and secure communication.
• Experience integrating workflows with e-commerce or order management systems.
  

Preferred Skills

• Experience with electronic locks, actuators, or access-control systems.
• Familiarity with serverless backend (Lambda, DynamoDB, API Gateway).
• Experience with consumer-facing pickup or reservation systems.
• Ability to create test scripts and device simulators for QA.
• Ability to collaborate with hardware installers and onsite technicians.
• Experience planning rollout and scaling of multi-location device systems.
• Background in building pickup, delivery, or locker-based systems.