Protocol Engineer

  • Toulouse, France
  • Full-time

Company Description

SIGFOX is the first and only operator of a cellular network fully dedicated to low-throughput communication for connected objects. With an extremely cost effective and very low energy consuming out-of-the-box connectivity offer, SIGFOX brings a revolution to the world of Internet of Things.

Sigfox deploys its network worldwide through distribution agreements with local partners (Sigfox Operator – SO), in charge of deploying and maintaining the network, and marketing and selling connectivity thanks to customer, channels and ecosystem development.  The relationship with each SO is managed by a Country Manager. Development of connectivity is mainly triggered by customers or channels of Sigfox Operators through their ability to implement IoT Solutions.

Job Description


  • Promote actively the Sigfox radio protocol in relevant ETSI standardization groups
  • Write and maintain protocol description documents for internal & external use
  • Conduct researches on new features for the Sigfox radio protocol
  • Develop and/or use tools for evaluation of the Sigfox radio protocol capabilities
  • Work closely with Sigfox research (Imagineering) and development (Engineering) teams



  • sound knowledge in radio communication (esp. PHY and MAC layers)
  • excellent interpersonal and communication skills
  • high level of enthusiasm
  • clarity, accuracy and proficiency in written and verbal communication
  • self-reliant in day-to-day business
  • good negotiation skills on technical matters


  • English: Fluent
  • first level of proficiency in French


  • engineering degree or PhD in communication
  • 3-5 years of experience from similar job
  • adaptability, experience in a start-up environment welcome

Additional Information

All your information will be kept confidential according to EEO guidelines.