✦ Luna Orbit — System Administration

Senior Embedded Firmware Engineer – IoT (Nordic nRF / Zephyr RTOS)

at Techno Global

📍 Remote, US Remote 💰 $20 – $100 USD / year Posted March 15, 2026
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Position Details

Salary $20 – $100 USD / year
Type Not Specified
Experience mid
Exp. Years Not specified
Education Not specified
Category System Administration

About this role

This role involves developing secure firmware for IoT devices based on Nordic chips, utilizing Zephyr RTOS, with a focus on power management and over-the-air updates.

Key Responsibilities

  • Develop firmware for IoT devices
  • Optimize power consumption
  • Implement secure OTA updates
  • Use debugging tools for testing
  • Manage device connectivity protocols

Technical Overview

The technical environment includes C/C++ programming, Zephyr RTOS, Nordic nRF9151 hardware, LoRa/LoRaWAN protocols, and embedded security features like Arm TrustZone.

Ideal Candidate

The ideal candidate is an experienced embedded firmware engineer with expertise in IoT devices, Nordic chips, Zephyr RTOS, and low-power firmware development, capable of working remotely on secure firmware solutions.

Must-Have Skills

Experience with C/C++ programming for microcontrollersKnowledge of Zephyr RTOSExperience with Nordic chipsPower management optimizationFirmware development for IoT devices

Nice-to-Have Skills

PCB design experience with Nordic chipsExperience with LoRa/LoRaWAN protocolsSecurity implementation using Arm TrustZoneOTA firmware deployment

Tools & Platforms

nRF Connect SDKZephyr RTOSJ-LinknRF9160 DKSWDJ-Link debugger

Required Skills

CC++ARM Cortex-M33Zephyr RTOSNordic chipsLoRaWANPower ManagementOTAdebugging toolsembedded security

Hard Skills

CC++ARM Cortex-M33Zephyr RTOSDevicetreeKconfigRTOS managementMQTTCoAPHTTPSTLSDTLSSPII2CUARTPDMPWMLoRaWANLoRaPower ManagementPSMeDRXSWDJ-LinknRF Connect SDKArm TrustZoneCryptoCell-310OTAFirmware updateDebugging tools

Soft Skills

Attention to detailProblem-solvingCommunicationTeamworkSelf-motivation

Industry & Role

Industry Technology
Job Function Design and develop embedded firmware for IoT applications
Role Subtype Embedded Firmware Engineer
Tech Domains Active Directory, Microsoft 365, Azure, Linux, Windows Server

Keywords for Your Resume

embedded firmwareIoTNordic nRFZephyr RTOSARM Cortex-M33firmware developmentC programmingC++ programmingLoRaWANPower ManagementOTA firmware updateDebugging toolsJ-LinknRF Connect SDKsecurityembedded securityRTOSmicrocontrollerC++Nordic chipsOTAdebugging tools

Deal Breakers

No experience with C/C++ for microcontrollers, Lack of Zephyr RTOS knowledge, No experience with Nordic chips, No firmware development background

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