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Systems & Integration Engineer

1 month, 1 week ago
India, Egypt, Pakistan
Full-time
Senior
Implementation Engineer
Customer and Technical Support
Arduino C C++ Embedded Systems IoT MQTT Python Raspberry Pi Wireshark
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Flatgigs

Flatgigs

FlatGigs tailors recruitment strategies for flat-structured companies, aligning teams with skills and culture. Utilizing tech tools for precise candidate organization.

Professional Services
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Description

  • Build and maintain the device integration layer, including Python- and C-based protocol adapters, drivers, and translation modules for sensors, PLCs, energy meters, gateways, and OEM hardware.
  • Implement production-quality adapters for MQTT v3.1/v5.0, Modbus TCP, Modbus RTU, OPC-UA, BACnet/IP, SNMP, CoAP, HTTP REST, and proprietary OEM APIs.
  • Write reusable protocol libraries that standardize hardware communication behind a unified device interface.
  • Maintain the device compatibility matrix with tested hardware, protocol versions, firmware details, known issues, configuration templates, and onboarding estimates.
  • Conduct hardware-in-the-loop testing for every new device, validating telemetry accuracy, command round-trip time, error handling, and reconnection behavior.
  • Create device profile templates that enable configuration-based onboarding of certified device types without customer-side code.
  • Normalize raw device data into standardized engineering-unit JSON telemetry.
  • Build edge gateway software for embedded Linux and Raspberry Pi-class devices to handle local protocol translation, buffering, and pre-processing.
  • Implement reliable edge buffering, aggregation logic, secure edge-to-cloud communication, and OTA update handling.
  • Evaluate new OEM hardware, produce feasibility reports, coordinate with supplier technical teams, and maintain integration documentation and troubleshooting guides.

Requirements

  • 5–9 years of hands-on IoT systems integration, embedded systems, or industrial automation experience; lab or field hardware experience is mandatory.
  • Deep practical experience with Modbus TCP and Modbus RTU, including master/slave implementation, register mapping, and byte-level debugging.
  • Solid MQTT knowledge, including broker configuration, topic design, QoS selection, client integration, and troubleshooting.
  • Production-quality Python experience for protocol adapter development and maintainable integration libraries.
  • Hands-on experience configuring and programming industrial IoT gateways such as Advantech, Moxa, Pepperl+Fuchs, or equivalent embedded Linux platforms.
  • Practical OPC-UA experience, including browsing server address spaces, reading node values, and implementing client subscriptions.
  • Ability to independently read hardware datasheets, electrical schematics, and communication protocol specifications.
  • Sensor-domain experience across at least 3 areas such as temperature/humidity, power/energy monitoring, GPS/asset tracking, pressure/flow, vibration/accelerometer, or air quality.
  • Remote work discipline with strong documentation habits, async-first communication, and the ability to coordinate hardware testing across distributed locations.
  • Preferred experience with LoRaWAN commissioning and gateway setup, cellular IoT modules (NB-IoT, LTE-M, or 4G), BACnet/IP or BACnet MS/TP, embedded C/C++, AWS Greengrass v2 or Azure IoT Edge, IEC 62443, and verticals such as cold chain, energy management, smart metering, predictive maintenance, or fleet telematics.

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