Senior Backend Engineer, IoT

• Develop and maintain Toniecloud IoT services for millions of users
• Contribute to the Toniecloud ecosystem, including a Django backend platform with RESTful and GraphQL APIs
• Work with an IoT messaging stack processing technical diagnostic data from millions of Tonieboxes worldwide
• Maintain reliable 24/7/365 services and help achieve the 99.99% SLA
• Collaborate within a cross-functional, stream-aligned team to champion technical excellence
• Work with the Product Manager and team members to deliver a strong in-app user experience
• Enable parents to set up and configure Tonieboxes and Tonies
• Continuously improve usability, quality, security, and service reliability
• Explore and deliver new solutions through agile, independent, and creative work

• Many years of experience as a software engineer
• Track record in building or maintaining backends for IoT products
• Fluency in at least two programming languages, including Python
• Ability to quickly adapt to new programming languages
• Essential experience with Django
• Familiarity with database systems, ideally PostgreSQL
• Thoughtful and efficient use of ORMs
• Linux experience
• Daily experience with Git and GitLab
• Experience with automated tests, CI/CD, and observability
• Experience with REST or GraphQL APIs
• Professional English communication skills
• Must be currently based in Germany
• Enthusiasm for the tonies product

• Deutschlandticket (public transport ticket) for unlimited mobility
• Monthly contribution for an office parking space
• Leasing bicycle
• Remote work subsidy
• Subsidies for company pension plans, occupational pension schemes, and occupational disability insurance
• 30 days of paid annual leave
• Three additional days off such as Rosenmontag, Christmas Eve, and New Year's Eve
• Up to 10 "toniecation days" (unpaid leave days) after one year of employment
• Internal and external training opportunities
• Individual learning budget
• Babbel language learning app
• Calm meditation app
• Attractive discounts on the entire range of tonies products