IndieKidz GmbH is a Berlin-based early stage startup building creative learning products for children.
Our software product, Occibo, is an AI-assisted children’s book creation platform. It helps authors, parents, teachers, and small publishers turn a manuscript into a complete children’s book workflow, including editing, illustration planning, character consistency, layout, export, and promotional assets.
We are looking for a motivated Backend / Full-Stack Developer Intern to support the development of Occibo mainly open to work in early stage startup.
Duration: 3–6 months / Compensation: Unpaid mandatory internship
Tasks
You will work on the technical development of Occibo, mainly on backend services, APIs, database logic, file handling, AI workflow integration, and selected full-stack features.
This role is ideal for a student who wants hands-on experience building a real SaaS product using modern backend and AI infrastructure.
- Build and improve backend APIs using Node.js, TypeScript, and Express.js
- Work with Supabase for database, authentication, and data management
- Good to have: Expereince in Langchain/Langgraph/Mastra
- Support file storage workflows using Cloudflare R2
- Help build AI workflow orchestration for book creation, illustration, layout, and export
- Work with queue-based processing using Redis and BullMQ
- Support integration with AI image-generation workflows such as ComfyUI
- Create clean, maintainable, and well-documented code
- Debug, test, and improve existing backend services
- Support selected frontend or full-stack tasks when needed
- Collaborate with product, design, and content team members
Requirements
- You have hands-on knowledge of JavaScript / TypeScript
- Preference would be given you have strong knoweldge in AI Agentic frameworks like Langchain, Langgraph, Mastra
- You understand backend development, APIs, databases, and Git
- You are interested in early stage AI, SaaS products, and product development
- You can work independently in a remote setup
- You write clean code and are willing to learn
- You are reliable, curious, and proactive
Benefits
- Real experience building an AI SaaS product from early stage
- Hands-on work with modern backend and AI infrastructure
- Exposure to product thinking, architecture, and startup execution
- Opportunity to work directly with the founder
- Remote and flexible working setup
- Internship certificate after successful completion
- Recommendation letter based on performance
Company
IndieKidz GmbH / Occibo:
Location: Remote
Employment Type: Mandatory/Voluntary Internship / Pflichtpraktikum
Duration: 3–6 months
Compensation: Unpaid mandatory internship
Please send us:
Your CV
GitHub profile or portfolio
Short note explaining why you are interested in this internship
Your required internship duration, availability hrs/week and earliest start date
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