Senior Embedded Software Developer (Networking, Security)

Location: Ukraine, Dnipro, Lviv, Europe, Poland, Warsaw

Company

hirify.global Software delivers embedded development services for a global technology customer specializing in climate technologies and energy management solutions for commercial, industrial, and residential environments.

What you will do

• Design and implement embedded software components and device functionality for connected IoT systems.
• Develop and optimize networking capabilities, telemetry, monitoring, remote provisioning, and Firmware-Over-the-Air update mechanisms.
• Integrate and troubleshoot Ethernet, Wi-Fi, BLE, LTE, Zigbee, and Thread communication technologies.
• Develop secure communication mechanisms and maintain bootloaders, firmware update systems, and device lifecycle management functionality.
• Debug real hardware, perform root-cause analysis, and conduct unit, integration, and system-level testing.
• Collaborate with architects, hardware engineers, QA specialists, security experts, and the customer; participate in planning, estimations, technical discussions, documentation, and continuous improvement.

Requirements

• 5+ years of commercial experience in embedded software development using C/C++.
• Strong experience with ARM-based microcontrollers, including STM32, NXP, TI, or Silicon Labs.
• Strong understanding of embedded systems architecture, RTOS concepts, and hardware-software interaction.
• Practical experience with wireless technologies such as 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, including OTA/FOTA firmware update mechanisms.
• Understanding of embedded cybersecurity concepts, including secure boot, TLS/SSL, certificate management, authentication, and cryptographic fundamentals.
• Experience with UART, SPI, I2C, CAN, Ethernet, FreeRTOS, Zephyr, Embedded Linux, or similar platforms.
• Strong debugging and troubleshooting skills using J-Link, ST-Link, GDB, or equivalent tools, plus experience with Git-based development workflows.
• Upper-Intermediate or higher English level.

Nice to have

• 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.