Embedded Linux Developer – Zephyr

Sigma Software Group

Senior Embedded Linux Developer involved in developing firmware solutions for industrial pump systems and connected embedded devices. Working with embedded Linux and Zephyr environments in collaboration with cross-functional teams.

Posted 7/4/2026full-timeRemote • 🇵🇱 PolandMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in embedded software development, particularly with C, Embedded Linux, and Zephyr RTOS. Proficient in designing and implementing firmware solutions, debugging on physical devices, and understanding embedded security concepts.

Highest-signal resume keywords

Embedded Software DevelopmentC ProgrammingEmbedded Linux DevelopmentZephyr RTOSDebugging and Troubleshooting

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Embedded Software DevelopmentC ProgrammingEmbedded Linux DevelopmentZephyr RTOSFirmware DevelopmentDebuggingEmbedded Communication ProtocolsLow-Level Hardware InteractionMemory ManagementEmbedded Security Concepts

Tools & Technologies

STM32NordicUARTI2CSPIModbusCANRS-485EthernetMQTT

Industry Keywords

Embedded SystemsIndustrial Pump SystemsDevice-Level FunctionalityFirmware SigningSecure Firmware UpdatesBootloadersFatFSLittleFSLwIPProfibus

Tech Stack

Tools & technologies

LinuxRTOS

About the role

Key responsibilities & impact

Design, develop, debug, document, and maintain embedded software components, drivers, and device-level functionality
Develop firmware solutions for industrial pump systems and embedded devices
Work within Embedded Linux and Zephyr RTOS environments
Implement and maintain low-level hardware interaction and communication interfaces
Analyze technical approaches and provide recommendations to the Customer and project team
Debug and troubleshoot software issues on real embedded hardware
Participate in software and hardware integration activities
Collaborate with PMs, QA engineers, DevOps specialists, and embedded developers throughout the development lifecycle
Identify and escalate technical risks, blockers, and architectural concerns when necessary

Requirements

What you’ll need

5+ years of commercial embedded software development experience using C
Strong hands-on experience with Embedded Linux development and debugging
Practical experience with Zephyr RTOS / ZephyrOS or strong RTOS background with readiness to work deeply with Zephyr
Experience working with STM32, Nordic, or similar ARM-based microcontrollers
Strong understanding of low-level embedded development concepts, including peripherals, interrupts, memory management, boot flow, and hardware interaction
Experience designing and implementing embedded software modules, drivers, and firmware components
Hands-on experience with embedded communication interfaces and protocols such as UART, I2C, SPI, Modbus, CAN, RS-485, or Ethernet
Experience debugging and troubleshooting software on physical embedded devices
Understanding of embedded security concepts, including bootloaders, secure firmware updates, firmware signing/encryption, authentication, and secure communication
Upper-Intermediate or higher English level WILL BE A PLUS
Experience with MQTT
Experience with Profibus or other industrial communication protocols
Knowledge of FatFS, LittleFS, lwIP, or similar embedded libraries/stacks

Benefits

Comp & perks

Employees can work remotely