Senior Fullstack Engineer, Sdui
Communication app for schools & daycares
Job no longer available
Communication app for schools & daycares
21-100 employees
Job no longer available
21-100 employees
Company mission
To build the operating system for modern education.
Role
Who you are
- Strong professional experience in backend or fullstack development, including solid hands-on experience with object-oriented programming and ideally PHP
- Experience with PHP-based frameworks such as Symfony or Laravel, as well as REST APIs and relational databases like PostgreSQL, MariaDB, or MySQL
- Familiarity with modern engineering environments and concepts such as Docker, Kubernetes, and event-driven architectures
- Confidence working across functions, taking ownership, and communicating proactively in an international English-speaking environment
- Experience with frontend technologies such as JavaScript or TypeScript is a plus in this fullstack role
What the job involves
- As a Senior Fullstack Engineer, you work on a technically demanding part of our platform where reliability, security, and smooth user experiences go hand in hand. In doing so, you help create infrastructure that schools and educational institutions across Europe can depend on every day
- You design, build, and evolve both product-facing applications and the underlying domain services that power secure, scalable access to our platform
- Design and integrate reliable REST APIs and contribute to scalable, secure system architecture
- Work on production systems with high requirements for availability, performance, and reliability
- Collaborate closely with engineers, product teams, and other stakeholders to solve complex technical challenges in a pragmatic way
- Take ownership of technical decisions, drive improvements, and contribute to a strong engineering culture through collaboration and clear communication
Our take
Germany-based Sdui is helping schools and daycares transform for the digital age, with a range of GDPR-compliant communication solutions. From its "digital classroom" - which allows chat and video conferencing - to parent letters and push notifications, Sdui provides all the tools for enhancing communication in the education and childcare spaces.
Serving thousands of schools and daycare centres across Europe, the company has already taken strides towards its vision of a world in which technology enables everyone to benefit from the best possible education. Strong funding and a string of acquisitions support the company in accelerated international expansion and scaling of its products.
As the company has expanded, it has become a group of many brands like KidsFox, SchoolFox, Additio App, Educamos, Konecto and Pupil. This group has now rebranded to Seven Education, which Sdui is considered a part of. The company itself continues its aim of becoming a first-choice partner for educational institutions across Europe.
Freddie
Company Specialist at Welcome to the Jungle
Insights
26% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Jul 2025
$69.7m
GROWTH EQUITY VC
Jul 2024
$24.4m
EARLY VC
Total funding: $123.1m
Company benefits
- MacBook or Windows notebook
- 30 days of vacation
- Remote work
- Free drinks
- Company pension plan
- Flexible hours
Company HQ
Koblenz-Metternich, Koblenz, Germany
Leadership
Daniel Zacharias
(Co-Founder & Group CEO (Seven Education))Member of the Supervisory Board of Pupil AG and of Konecto. Is a Founding Member for iddb.school and Edtech Founders Club, a Founding Partner for BV Capital, and a Partner for SH.
Jan Micha Kroll
(Founding Member)Graduate of the University of Koblenz and Landau, where they were studying when they founded Sdui.
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