> Markdown version of [/jobs/ext/4643970-embedded-systems-development-engineer](https://www.wearedevelopers.com/jobs/ext/4643970-embedded-systems-development-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Embedded Systems Development Engineer - **Company:** Celestia - **Location:** Santander, Spain - **Contract:** Permanent contract - **Skills:** Automation of Tests, Communications Protocols, Continuous Integration, Embedded Software, FreeRTOS, Serial Communications, Subversion, Strategies of Testing, Universal Asynchronous Receiver/Transmitter, Wi-Fi Technology, Serial Peripheral Interface, PIC Microcontroller, Git, Code Testing, Software Version Control - **Published:** November 9, 2026 - **Apply:** https://www.jobleads.com/es/job/embedded-systems-development-engineer--santander--e38ff8084d11c71df6f679ef05a1c47b1 ## About the Role Skills, Knowledge & Experience * Experience in embedded software development with microcontrollers and operating systems, ideally STM32 family and FreeRTOS * Experience using version control systems (SVN and Git) * Experience with low-level communication protocols such as I2C, SPI, and UART serial communication * Experience using code testing software, including static, dynamic, and continuous integration testing tools * Knowledge of various IoT communication technologies - Sigfox, LoRa, NB-IoT, CAT-M1, WiFi and BLE * Experience in testing methodologies (BDD, TDD, or similar) * Ability to read and interpret electronic schematics * Strong communication and teamwork skills Languages * Good level of English, B2 or equivalent ## Description Embedded Systems Development Engineer Overview Company Name: Celestia Job Role: Embedded Systems Development Engineer Qualifications: Not specified Category: I Job Type: Full Time Location: Santander, Spain Requirements What we're looking for Skills, Knowledge & Experience * Experience in embedded software development with microcontrollers and operating systems, ideally STM32 family and FreeRTOS * Experience using version control systems (SVN and Git) * Experience with low-level communication protocols such as I2C, SPI, and UART serial communication * Experience using code testing software, including static, dynamic, and continuous integration testing tools * Knowledge of various IoT communication technologies - Sigfox, LoRa, NB-IoT, CAT-M1, WiFi and BLE * Experience in testing methodologies (BDD, TDD, or similar) * Ability to read and interpret electronic schematics * Strong communication and teamwork skills Languages * Good level of English, B2 or equivalent The role We are looking for an Embedded Systems Development Engineer to join our highly qualified engineering team specialised in electronics design, sensors integration and wireless communications. This exciting role involves the development of embedded software development for IoT devices. IoT/Location * IoT * Spain Visa sponsorship: check with employer