Backend Engineer Intern | AI Systems (m/f/d)
Cloud Studios is a Berlin app studio building premium, productised digital products. Our current product, GetMOW, analyses how AI engines like ChatGPT, Perplexity and Google's AI Overviews represent B2B software brands, and tells companies what to change to get recommended.
We need to move the core of this product from "working prototype" to a system that runs reliably at scale. That's this role.
You'd own the backend: the system that queries multiple AI platforms, processes what comes back, and turns it into structured insight. We have the product logic worked out. What we need is an engineer who can turn that into infrastructure that doesn't break under real usage.
Secondary to that, you'd also implement UI work from our product designer's designs and clean up parts of the existing frontend. The majority of your time goes to the backend and AI systems.
Tasks
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- Design and build the backend architecture for GetMOW's AI analysis engine: orchestration across multiple AI platforms, data pipelines, job scheduling, storage
- Build AI workflows that hold up under real load \- structured, tested, monitored, with clear failure handling
- Set up the security and infrastructure basics: authentication, data handling, error handling, logging
- Use AI coding tools (Claude Code or similar) to build fast, while understanding and owning what ships
- Implement UI features from Figma designs and refactor parts of the existing frontend codebase
- Take technical decisions independently and be able to explain them
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- Strong backend fundamentals: APIs, databases, async processing, system design
- Practical experience building with LLMs or AI workflows: API integrations, structured outputs, multi\-step pipelines, evaluation, or similar. Coursework alone isn't enough, we need something you've actually built
- Familiarity with our stack or something close to it: Next.js, TypeScript, Supabase, Vercel
- A habit of writing secure, maintainable code, not just code that runs once
- You use AI tools to increase your speed, not to replace understanding your own system
- Fluent English
You must currently be enrolled at a university or in vocational training, and one of the following must apply:
1\. Mandatory internship (Pflichtpraktikum): required by your study or training regulations. You'll need your enrollment certificate and proof of the requirement.
2\. Voluntary internship alongside your studies: maximum 3 months
*Applications that don't meet either condition can't be considered, regardless of how strong the technical fit is.*
Benefits
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- You'll own a production system from the start, not a peripheral feature
- Direct, regular contact with the founders on technical and product decisions
- A real, live product you can point to afterward, not a toy project
- If it works out, a path to a long\-term paid role with continued ownership of what you built
- Duration: 3\-6 months (mandatory internship) or max. 3 months (voluntary internship)
- Full\-time, 30\-40h/week
- Berlin office preferred, ideally 2\+ days/week. Remote is possible
- Start: as soon as possible
- This internship is unpaid, in line with the legal conditions above
- Towards the end of the internship, we'll discuss extending into a long\-term, paid role based on performance and fit
Send a link to your GitHub, portfolio, or a project you're proud of. Please complete the screening questions, they're the fastest way for you to stand out.
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