Posted 3 weeks ago Senior Embedded Software Developer (Networking, Security) Sigma Software› ★ 4.4 (212) Warsaw, Mazovia, Poland 🇵🇱 Hybrid Full Time AWSAzureGoogle Cloud Apply on source site Track Check your resume for this jobPro Job description Design and implement embedded software components and device functionality for connected IoT systemsDevelop, optimize, and maintain networking capabilities for cloud-connected embedded devicesImplement telemetry, monitoring, remote provisioning, and Firmware-Over-the-Air update mechanismsIntegrate and troubleshoot communication technologies including Ethernet, Wi‑Fi, BLE, LTE, Zigbee, and ThreadDevelop secure communication mechanisms following embedded cybersecurity best practicesDesign and maintain bootloaders, firmware update systems, and device lifecycle management functionalityPerform debugging, troubleshooting, and root-cause analysis on real hardware platformsConduct unit, integration, and system-level testingCollaborate with architects, hardware engineers, QA specialists, and security expertsParticipate in technical discussions, estimations, planning sessions, and Customer communicationPrepare and maintain technical documentationEnsure compliance with engineering standards, security requirements, and quality processesContribute to continuous improvement of development practices and engineering workflowsQualifications5+ years of commercial experience in embedded software development using C/C++Strong experience with ARM-based microcontrollers such as STM32, NXP, TI, or Silicon LabsStrong understanding of embedded systems architecture, RTOS concepts, and hardware-software interactionPractical experience with wireless technologies including BLE, Wi‑Fi, LTE, Zigbee, or ThreadSolid networking knowledge including TCP/IP, UDP, DHCP, DNS, IPv4/IPv6, MQTT, HTTP/HTTPS, and WebSocketsExperience with cloud-connected embedded devices and IoT ecosystemsExperience implementing OTA/FOTA firmware update mechanismsUnderstanding of embedded cybersecurity concepts including secure boot, TLS/SSL, certificate management, authentication, and cryptographic fundamentalsExperience with communication interfaces such as UART, SPI, I2C, CAN, and EthernetExperience with FreeRTOS, Zephyr, Embedded Linux, or similar platformsStrong debugging and troubleshooting skills using J-Link, ST-Link, GDB, or equivalent toolsExperience with Git-based development workflowsUpper-Intermediate or higher English levelWILL BE A PLUSExperience with cybersecurity standards and secure development practices for IoT productsPractical experience with networking stacks such as lwIPExperience with secure bootloader development and device provisioningKnowledge of PKI, certificate-based authentication, and hardware security modulesFamiliarity with Docker, GitLab CI/CD, and automated testing frameworksExperience with AWS IoT, Azure IoT, or Google Cloud IoTBasic hardware design and debugging knowledgeExperience with secure manufacturing and device onboarding processes
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