Senior Embedded Firmware Engineer (IoT / BLE / Wi-Fi)

**Join Our Team** Oowlish, one of Latin America's rapidly expanding software development companies, is seeking experienced technology professionals to enhance our diverse and vibrant team. As a valued member of Oowlish, you will collaborate with premier clients from the United States and Europe, contributing to pioneering digital solutions. Our commitment to creating a nurturing work environment is recognized by our certification as a Great Place to Work, where you will have opportunities for professional development, growth, and a chance to make a significant international impact. We offer the convenience of remote work, allowing you to craft a work\-life balance that suits your personal and professional needs. We're looking for candidates who are passionate about technology, proficient in English, and excited to engage in remote collaboration for a worldwide presence. **About the Role:** We’re partnering with an innovative early\-stage company revolutionizing pet health through smart, connected technology. Their product is a next\-generation collar\-mounted device that leverages IoT and AI to monitor pet activity, wellness, and location in real\-time — helping both pet parents and veterinarians take proactive care decisions. We are looking for a **Senior Embedded Firmware Engineer** to join our Firmware team. If you’re passionate about low\-level development and excited to shape the future of pet tech, this role is for you. **Requirements:** * 5\+ years experience in firmware development for IoT devices * 3\+ years experience with BLE modules from Nordic: * Experience with both nRF5 SDK 17\.1\.0 and nRF Connect SDK 3\.1\.1 * Power optimization for battery\-powered devices * Experience implementing SPI, I2C and UART on NRF devices * 3\+ years experience with ESP32S3 and/or ESP32C6 * Experience implementing power optimization techniques (ULP, deep/light/modem sleep) * Extensive usage of WiFi and BLE on ESP devices for IoT applications, using protocols like MQTT, CoAP, HTTP and LwM2M * 3\+ years experience with LTE\-M/NB\-IoT modules from Quectel and U\-blox/Trasna * Experience optimizing for different power optimzations like PSM and eDRX * Experience with IoT protocols over LTE\-M (MQTT, CoAP, HTTP and LwM2M) **Nice to Have:** * Experience with other common MCUs (STM32, NXP LPC, PIC, AVR) * Experience with GNSS technologies * Experience with MEMS\-based sensing technologies **Benefits \& Perks:** Home office; Flexible Hours; Competitive compensation based on experience; Career plans to allow for extensive growth in the company; International Projects; Oowlish English Program (Technical and Conversational); Oowlish Fitness with Total Pass; Games and Competitions; **You can also apply here:** Website: https://www.oowlish.com/work\-with\-us/ LinkedIn: https://www.linkedin.com/company/oowlish/jobs/ Instagram: https://www.instagram.com/oowlishtechnology/ We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.