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SSSigma Software logo

Sigma Software

Warsaw, pl

Senior Embedded Software Developer (Networking, Security).

FULL TIMEREMOTESENIOR LEVELSECURITY
  • Design and implement embedded software components and device functionality for connected IoT systems
  • Develop, optimize, and maintain networking capabilities for cloud-connected embedded devices
  • Implement telemetry, monitoring, remote provisioning, and Firmware-Over-the-Air update mechanisms
  • Integrate and troubleshoot communication technologies including Ethernet, Wi‑Fi, BLE, LTE, Zigbee, and Thread
  • Develop secure communication mechanisms following embedded cybersecurity best practices
  • Design and maintain bootloaders, firmware update systems, and device lifecycle management functionality
  • Perform debugging, troubleshooting, and root-cause analysis on real hardware platforms
  • Conduct unit, integration, and system-level testing
  • Collaborate with architects, hardware engineers, QA specialists, and security experts
  • Participate in technical discussions, estimations, planning sessions, and Customer communication
  • Prepare and maintain technical documentation
  • Ensure compliance with engineering standards, security requirements, and quality processes
  • Contribute to continuous improvement of development practices and engineering workflows
  • 5+ years of commercial experience in embedded software development using C/C++
  • Strong experience with ARM-based microcontrollers such as STM32, NXP, TI, or Silicon Labs
  • Strong understanding of embedded systems architecture, RTOS concepts, and hardware-software interaction
  • Practical experience with wireless technologies including BLE, Wi‑Fi, LTE, Zigbee, or Thread
  • Solid networking knowledge including TCP/IP, UDP, DHCP, DNS, IPv4/IPv6, MQTT, HTTP/HTTPS, and WebSockets
  • Experience with cloud-connected embedded devices and IoT ecosystems
  • Experience implementing OTA/FOTA firmware update mechanisms
  • Understanding of embedded cybersecurity concepts including secure boot, TLS/SSL, certificate management, authentication, and cryptographic fundamentals
  • Experience with communication interfaces such as UART, SPI, I2C, CAN, and Ethernet
  • Experience with FreeRTOS, Zephyr, Embedded Linux, or similar platforms
  • Strong debugging and troubleshooting skills using J-Link, ST-Link, GDB, or equivalent tools
  • Experience with Git-based development workflows
  • Upper-Intermediate or higher English level

WILL BE A PLUS

  • Experience with cybersecurity standards and secure development practices for IoT products
  • Practical experience with networking stacks such as lwIP
  • Experience with secure bootloader development and device provisioning
  • Knowledge of PKI, certificate-based authentication, and hardware security modules
  • Familiarity with Docker, GitLab CI/CD, and automated testing frameworks
  • Experience with AWS IoT, Azure IoT, or Google Cloud IoT
  • Basic hardware design and debugging knowledge
  • Experience with secure manufacturing and device onboarding processes
Pay
Not stated
Where
Warsaw, pl
Work
Remote
Type
Full time
Posted
22 Oct, 2026
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