Twilio is hiring a

Sr. Software Engineer - Internet of Things

Tallinn, Estonia

About the job:

The IoT Team builds services that empower Twilio’s real-time and wireless communication infrastructure, enabling smart devices to interact with cloud applications. Twilio IoT platform provides an API that makes engineering large scale heterogeneous IoT solutions Web development-easy. As an Senior Software Engineer you will be developing a set of highly available, resilient and performant services used by hundreds of thousands of developers and millions of devices.


  • Be part of a small, high-impact, multi-talented engineering team in Tallinn, Estonia.
  • Drive the design and architecture services in IoT domain following PaaS paradigm.
  • Build secure, resilient and performant server-side components in Java and host them in AWS.
  • Collaborate with product management to define, architect, and build new customer-facing features.
  • Own, operate, and maintain your team’s services in production.
  • Write quality, maintainable code with extensive automatic test coverage in a fast-paced professional software engineering.
  • Excel as engineer and be productive member of the team where leadership is a behavioral trait, not a title.


At Twilio, we believe in versatility and complementing proficiencies being key to forming a better team. We are therefore looking for people with a variety of skills and specializations. You should have at least 3 of the proficiencies below to be considered for the role:

  1. C++. You are a rock-solid C++ developer, and use it (including latest standards) regularly. We believe there’s a great correlation between good developers and proficiency in C++.
  2. Scalable backend. You understand scalability challenges and performance of server-side code. You can design and develop horizontally-scalable, resilient and performing-under-load systems.
  3. Java. You are a Java enthusiast and professional. There is at least one framework in which you can be called an expert.
  4. Embedded. You understand the intricacies of the constrained environment, striving to achieve maximum efficiency. You love compact protocols, low memory footprint and prefer asynchronous I/O. In your free time, Arduino and Raspberry Pi get your ideas executed.
  5. Cloud. You are proficient in cloud technologies and are hands-on in at least one cloud platform: GCC, AWS, or Azure. You are able to both design and develop cloud-based systems and operate them in an automated fashion.
  6. Testing. You are passionate about quality and can engineer it at all stages of software development. You are able to design and develop quality pipeline requiring as little human intervention as possible.
  7. Security. You are able to design secure distributed systems and assure operational processes around security. You understand fitness for purpose of security techniques.

Bonus Points:

  • JavaScript or other scripting languages proficiency.
  • Real-time communications or telematics related experience.
  • Sound understanding of build and deployment toolchains.

About us:

Twilio makes communications easy and powerful. With Twilio's platform, businesses can make communications relevant and contextual by embedding real-time communication and authentication capabilities directly into their software applications. Twilio gives businesses the ability to innovate, prototype, create, and connect with their customers at the right time and in the right way. Founded in 2008, Twilio is a public company based in San Francisco, California with other offices around the world.

Twilio is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status. #LI-POST