Software Engineer

Silicon Labs (NASDAQ: SLAB) is the leading innovator in low-power wireless connectivity, building embedded technology that connects devices and improves lives. Merging cutting-edge technology into the world's most highly integrated SoCs, Silicon Labs provides device makers the solutions, support, and ecosystems needed to create advanced edge connectivity applications. Headquartered in Austin, Texas, Silicon Labs has operations in over 16 countries and is the trusted partner for innovative solutions in the smart home, industrial IoT, and smart cities markets. Learn more at 

Silicon Labs (NASDAQ: SLAB) is the leading innovator in low-power wireless connectivity, building embedded technology that connects devices and improves lives. Merging cutting-edge technology into the world's most highly integrated SoCs, Silicon Labs provides device makers the solutions, support, and ecosystems needed to create advanced edge connectivity applications. Headquartered in Austin, Texas, Silicon Labs has operations in over 16 countries and is the trusted partner for innovative solutions in the smart home, industrial IoT, and smart cities markets. Learn more at

Silicon Labs is looking for a junior software engineer as part of a CIFRE PhD program conducted in partnership with a leading French academic research laboratory. The work will focus on extending the Wi-SUN protocol within our embedded software solutions. The position is based in Rennes, France, where you will collaborate closely with our proprietary stack team as well as researchers from our academic partner. You will contribute to advancing next-generation wireless technologies for IoT, benefiting from both an industrial R&D environment and academic insights.

You will join a highly skilled engineering team where everyone has a significant impact on the end product. The Rennes site is cross-functional, giving you opportunities to collaborate with chip designers, embedded software engineers, and customer-facing teams. You will also contribute to scientific research in your domain and engage with the academic community through publications and presentations. Silicon Labs values work–life balance and fosters an open and collaborative culture.

• Conduct research and development on Wi-SUN protocol extensions within Silicon Labs' embedded stacks.
• Design, implement, and evaluate new mechanisms in simulation and modeled environment.
• Design, implement, and evaluate new mechanisms in C/C++ in a constrained embedded environment.
• Analyze and solve technically demanding issues related to wireless networking and embedded systems.
• Participate in academic research activities: literature reviews, experimental methodology, writing scientific publications, and presenting results.
• Interact occasionally with one of Silicon Labs' major customers to discuss technical aspects relevant to the research work.
• Uphold a high standard of software quality and contribute ideas to evolve both the product and internal workflows.

Skills/Experience

• Strong knowledge of C/C++ and/or Python for tooling or experimentation.
• Understanding of embedded systems and RTOS environments (e.g., FreeRTOS).
• Knowledge or strong motivation to learn wireless/networking protocols (Wi-SUN, 6LoWPAN, IEEE , LPWAN, etc.).
• Ability to conduct structured research, synthesize information, and propose innovative solutions.
• Strong problem-solving skills, autonomy, and willingness to collaborate in both industrial and academic settings.
• Fluent written and spoken English.
• Knowledge of digital wireless communication or signal processing is a plus.

Silicon Labs is an equal opportunity employer and values the diversity of our employees. Employment decisions are made on the basis of qualifications and job-related criteria without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status, or any other characteristic protected by applicable law.