Senior Backend Engineer (IoT)

2 Hours ago • 4-8 Years • Backend Development

About the job

Summary

As a Senior Backend Engineer (IoT) at tonies®, you'll develop and maintain Toniecloud IoT services, ensuring a top-tier experience for millions of users. You'll work with a robust Django backend platform, RESTful and GraphQL APIs, and an IoT messaging stack processing data from Tonieboxes globally. Responsibilities include ensuring 24/7 service availability, collaborating with a cross-functional team, and championing technical excellence. You'll contribute to intuitive user tools for device setup and customization within the app, enhancing user experience and driving continuous improvement.
Must have:
  • Develop and maintain Toniecloud IoT services
  • Experience with Django, Python, PostgreSQL
  • REST/GraphQL APIs, CI/CD, Observability
  • Agile teamwork, problem-solving skills
  • Automated testing and Linux environment
Perks:
  • Global Teamwork
  • Flexible Working (Remote up to 5 days)
  • Workation (up to 4 weeks/year)
  • Continuous Learning & budget
  • 30 days paid leave + additional days off
  • toniecation days (up to 10 unpaid leave days)
  • Mobility options (transport ticket, parking, bike leasing)
  • Enhanced Security (pension, disability insurance)
  • Discounts on tonies products
  • Language Learning & Relaxation apps access
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You as part of tonies:

Do you want to develop a product that is used worldwide? Do you have high standards for continuous discovery, usability and clean code? Do you challenge decisions and ideas against current requirements to ensure continuous improvement? If you answered “YES!” to these questions, we want to talk to you!

As a Senior Backend Engineer (m/f/d) you will join a talented product team dedicated to developing and maintaining the Toniecloud IoT services. Your focus will be on continuous discovery, usability, quality and security, ensuring a top-tier experience for our millions of users worldwide.

In the IoT and Control stream, you will play a central role in ensuring the seamless integration of our IoT products. You will empower our users by providing them with intuitive tools to set up and customize their devices to suit their unique needs.

Your tasks and responsibilities will include:
  • You take charge of developing and maintaining our Toniecloud IoT services, ensuring they meet the needs of millions of users

  • Play a key role in our Toniecloud ecosystem, which includes:

    • A robust django backend platform offering RESTful and GraphQL APIs

    • An IoT messaging stack that processes technical diagnostic data from millions of Tonieboxes around the globe

  • Maintain our commitment to reliability, ensuring our services are available 24/7, 365 days a year, and helping us achieve our 99,99% SLA

  • Collaborate within a cross-functional, stream-aligned team, where you’ll champion technical excellence to deliver seamless, always-on services. You’ll also work closely with the Product Manager and team members to ensure a fantastic user experience within the app (enabling parents to set up and configure their Tonieboxes and Tonies, enabling unlimited joy for our little listeners)

What we are looking for:
  • You have been a passionate software engineer for many years and are excited to continue improving your skills

  • You are fluent in at least two programming languages – ideally, one of them is Python – and you can quickly adapt to new languages when needed

  • Experience with Django is a big plus

  • Your code is lean, well-structured and easy to understand. You avoid unnecessary complexity from the outset and have a knack for solving complex problems with simple solutions

  • You are familiar with database systems (ideally PostgreSQL) and use ORMs thoughtfully and efficiently

  • Linux is your preferred environment and working with Git and GitLab is part of your daily routine

  • Your work style is characterized by agility, teamwork, independence and creativity, especially when exploring new solutions

  • You place great importance on automated tests, CI/CD, and observability

  • APIs (REST or GraphQL) are like your native language

  • You are comfortable communicating in English in a professional work environment

  • Last but not least: you are enthusiastic about our product and want to join us on our exciting journey!

Why tonies?
  • Global Teamwork: We collaborate across departmental and country borders on our vision to bring the Toniebox into every child's room in the world.
  • Come as you are: This applies not only to the dress code but also to everything else. Because only where you truly feel comfortable can you give your best.
  • Mobility: Choose the option that suits you best - a Deutschlandticket (public transport ticket) for unlimited mobility, a monthly contribution for an office parking space, a leasing bicycle, or a remote work subsidy.
  • Enhanced Security: Benefit from subsidies for company pension plans, occupational pension schemes, and occupational disability insurance.
  • Rest & Time Off: Enjoy 30 days of paid annual leave as well as three additional days off such as Rosenmontag, Christmas Eve, and New Year's Eve. After one year of employment, you can also use up to 10 "toniecation days" (unpaid leave days).
  • Flexible Working: Equipped with individual equipment, you can work remotely for up to 5 days in consultation with your team - depending on your area of responsibility. And if you're up for a workation, you can work from abroad for up to 4 weeks per year with us.
  • Continuous Learning: Benefit from our internal and external training opportunities as well as an individual learning budget to continuously expand your knowledge.
  • Language Learning & Relaxation: Improve your communication skills with the language learning app Babbel and find relaxation through our access to the meditation app Calm.
  • Discounts: Benefit from attractive discounts on our entire range of tonies products.
Good to know:
As part of our principles, we are committed to supporting inclusion and diversity at tonies®. We actively celebrate our colleagues’ different abilities, ethnicities, faith and gender. Everyone is welcome and supported in their development at all stages in their journey with us. 

We look forward to hearing from you!

Florina Varga
Senior Tech Recruiting & Onboarding Partner
About us
tonies® is the world’s largest interactive audio platform for children with more than 7.3 million Tonieboxes and 90 million Tonies sold. The intuitive and award-winning audio system has changed the way young children play and learn independently with its child-safe, wireless, and screen-free approach. Tonieboxes have been activated in over 100 countries, the content portfolio includes more than 1,100 Tonies figurines in several languages.
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About The Company

tonies® is the world’s largest interactive audio platform for children with more than 6.8 million Tonieboxes and 82 million Tonies sold.


The intuitive and award-winning audio system has changed the way young children play and learn independently with its child-safe, wireless, and screen-free approach. 


Tonieboxes have been activated in over 100 countries, the content portfolio includes more than 1,100 Tonies figurines in several languages. 

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North Rhine-Westphalia, Germany (Hybrid)

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