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Full-Stack Software Engineer (m/f/d) Berlin, Germany

Permanent employee, Full-time · Trellis Germany, Trellis Hybrid
57,000 - 70,000 € per year
About Us
We believe that all children should be given the chance to reach their full potential. Access to quality education is where this starts. 

At EIDU, we are working to empower governments to secure foundational literacy and numeracy for every child. We come in as a reliable partner to enhance the existing systems with our technology-based solution: a platform that integrates multiple proven educational interventions, designed to meaningfully impact all key stakeholders in any public education system - learners, teachers, education officers and ministry staff.

Our solution is built for scale:  Through partnerships with 38 governments, we currently serve over 770,000 students in Kenya and Nigeria - and are aiming to reach tens of millions within the next few years. In a year-long randomised control trial conducted by external researchers, endline results indicated 0.53 SD improvement in learning outcomes with EIDU, making EIDU one of the top 10% of education interventions in the low- and middle-income context.

EIDU is funded by well-known development agencies, foundations, and impact investors.

We constantly refine our approach to enhance effectiveness and keep our platform at the forefront of educational impact, for example  through meaningful projects with leading technology companies to further enhance learning outcomes through AI. 
About the role

We’re looking for a Full-Stack Software Engineer to ship user-facing features end to end, uphold high standards of code quality, and help our small team move fast and scale globally.

What you will do:
  • Ship product features end-to-end: plan, analyse, document, code, review, test, and release high-quality code.
  • Keep quality high by writing readable, maintainable code, adding meaningful tests, monitoring in production, hunting down tricky issues and driving them to resolution.
  • Share what you learn by pairing with teammates, contributing clear docs, and raising the bar through thoughtful reviews and feedback.
  • Continue developing your skills with support from the team, and explore new responsibilities at your own pace, all into helping create meaningful impact for our users.
  • Take a proactive role in integrating AI tools into our workflows: whether it's using LLMs to augment coding, debugging, or documentation; or building small AI-enhanced tools for internal use.
We’re a small team with a big mission — which means efficiency and leverage matter immensely. As a Software Engineer, you’ll ship user-facing features and use the right tools, automation, and AI to multiply our product impact.

What you should bring:
  • The desire to use your skills to bring about positive social change.
  • At least three (3) years of experience writing code. Experience designing system architectures is a plus, but not required.
  • A proven record of developing production-grade software in a team.
  • Full-stack experience is a plus.
  • A passion for writing clean, maintainable, and testable code. 
  • A desire to apply AI tools creatively to make your own work — and your teammates’ — more efficient.
  • Excellent collaboration skills and a willingness to learn new tech or dive into unfamiliar systems.
  • We speak and operate in English - knowledge of German is not required.  
PS: We don’t require that you know our entire tech stack or have a decade of experience — we’re looking for someone who’s seen enough to spot pitfalls, ask good questions, build with confidence, and who is eager to learn what’s unfamiliar.
What we offer:
  • A supportive, international team based in Kenya, Nigeria, and Germany, united by a mission and commitment to learning.
  • An engineering culture grounded in craftsmanship, trust, and autonomy.
  • Meaningful technical challenges: from scaling across low-end devices and unreliable connectivity to designing resilient, self-healing systems.
  • A modern, evolving stack:
    • Tooling: Terraform, Helm, GitHub Actions
    • Backend: AWS, Kotlin, Kubernetes, Kafka, MongoDB, microservices
    • Frontend: React, TypeScript, Android, Kotlin, Jetpack Compose
  • Openness to exploring and proposing new tools — whether open-source, cloud-native, or AI-powered.
  • Three creative hackathon weeks per year, where you can explore bold new directions.
  • A healthy work-life balance with flexible hours, an async-friendly culture that respects personal time and autonomy, and a hybrid setup (in-office once a week or more). We also support reduced working hours if requested (e.g. 32 rather than 40 hours per week).
  • Transparent and fair salary bands — we believe everyone should be paid equitably, without needing to negotiate.
  • A truly generous equity scheme.
  • The chance to see your work in action through field visits to classrooms abroad.
  • A rare opportunity to combine deep technical work with real-world global impact.
If you're passionate about making a meaningful difference in global education, we'd love to hear from you.
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