Mandatory Internship(Unpaid): Backend / Full-Stack Developer for AI SaaS | JobSetuu

Description

Job Overview

• Source: Arbeitnow
• Location: Berlin
• Job Type: Full-Time

Job Description

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.

1. Build and improve backend APIs using Node.js, TypeScript, and Express.js
2. Work with Supabase for database, authentication, and data management
3. Support file storage workflows using Cloudflare R2
4. Help build AI workflow orchestration for book creation, illustration, layout, and export
5. Work with queue-based processing using Redis and BullMQ
6. Support integration with AI image-generation workflows such as ComfyUI
7. Create clean, maintainable, and well-documented code
8. Debug, test, and improve existing backend services
9. Support selected frontend or full-stack tasks when needed
10. Collaborate with product, design, and content team members

Requirements

• You have hands-on knowledge of JavaScript / TypeScript
• 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 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 and earliest start date

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Expert Career Tips for Mandatory Internship(Unpaid): Backend / Full-Stack Developer for AI SaaS Roles

To succeed in a competitive market as a Mandatory Internship(Unpaid): Backend / Full-Stack Developer for AI SaaS, you need more than just technical skills. Here are some expert strategies to elevate your profile:

• Build a Strong Portfolio: For technical roles, a clean GitHub or a personal project site is essential. For non-technical roles, a case study portfolio demonstrating problem-solving and impact is equally valuable. Show, don't just tell, what you have achieved in your previous positions.
• Master the Narrative: When interviewing, use the STAR method (Situation, Task, Action, Result) to structure your answers. Quantify your results wherever possible—mentioning "increased efficiency by 20%" is much more impactful than saying "improved efficiency."
• Continuous Learning: The industry moves fast. Whether it's staying updated with the latest AI tools or mastering a new management methodology, continuous professional development is key. Consider obtaining industry-recognized certifications that align with Mandatory Internship(Unpaid): Backend / Full-Stack Developer for AI SaaS requirements.
• Networking: Connect with other professionals in similar roles. Join online communities, attend webinars, and engage in meaningful discussions on professional social networks. Often, the best opportunities come through referrals and community engagement.
• Soft Skills Matter: Communication, empathy, and leadership are often the deciding factors between two equally qualified technical candidates. Cultivate these skills as they are universally valued across all industries and seniority levels.

Additionally, research the specific company's culture and values. Tailoring your application to show how you align with their mission can significantly increase your chances of moving forward in the process.

Salary & Compensation

Salary not disclosed; typically competitive for the role.

Work Arrangement

Type: On-Site

Standard business hours at the office.

Comprehensive Application Strategy & Hiring Process

Applying for a new role is a marathon, not a sprint. Follow this strategic approach to maximize your success rate:

1. Initial Research & Tailoring

Don't send the same resume to every employer. Spend at least 30 minutes researching the company. Look for recent news, their product roadmap, and their team structure. Modify your summary and core competencies to reflect the specific keywords found in the job description.

2. The Perfect Cover Letter

If the application allows for a cover letter, use it to tell a story that your resume cannot. Explain why you are passionate about this specific company and how your unique background makes you the perfect fit for the challenges they are currently facing.

3. Navigating the Multi-Stage Interview

Most modern hiring processes involve 3-5 stages. This typically includes a recruiter screen, a technical or skill-based assessment, a peer interview, and a final leadership round. Prepare for each stage differently: focus on enthusiasm and fit for the recruiter, technical depth for the assessment, and strategic vision for the leadership round.

4. Post-Interview Follow-Up

Always send a personalized thank-you note within 24 hours of each interview. Reference a specific topic discussed during the call to demonstrate your active listening and genuine interest in the role.

By following these steps, you demonstrate a high level of professionalism and attention to detail that sets you apart from the average applicant.

Typical Interview Process

1. Resume screening
2. HR call
3. Skill interview
4. Final manager interview
5. Offer

Tip: Research the company's products and culture.

Global Market Intelligence & Relocation Insights

At JobSetuu, we specialize in helping talent navigate the global job market. Here is what you need to know about the current landscape in Berlin and beyond:

The demand for skilled professionals is increasingly borderless. For roles based in Berlin, understanding the local cost of living, visa requirements (if applicable), and cultural nuances is vital. If this is a remote role, consider the time zone alignment and the asynchronous communication culture of the hiring organization.

Relocation Support: Many forward-thinking companies offer relocation packages that include moving stipends, temporary housing, and legal assistance with work permits. When evaluating an offer, look beyond the base salary—consider the total compensation package, including equity, bonuses, and healthcare benefits.

Work-Life Balance Trends: Hybrid and remote work have become standard in many regions. Research the local labor laws and common practices regarding work hours and vacation time to ensure the role aligns with your lifestyle goals.

Leveraging JobSetuu's tools can help you compare salaries across different cities and understand the "purchasing power" of your potential offer, ensuring you make an informed decision for your long-term career path.

Skills & Competency Roadmap for Professional Development

To remain competitive in Professional Development, we recommend focusing on the following core competencies over the next 12-18 months:

• Technical Mastery: Deepen your expertise in the core tools and languages relevant to your field. For developers, this might be cloud architecture; for marketers, it might be data-driven attribution modeling.
• AI Augmentation: Learn how to leverage generative AI and automation tools to increase your productivity. Understanding how to integrate these technologies into your workflow is becoming a non-negotiable skill.
• Leadership & Strategy: Even in individual contributor roles, the ability to think strategically and lead projects from inception to completion is highly valued. Focus on stakeholder management and high-level project planning.
• Data Literacy: The ability to interpret data and use it to drive decisions is essential across all business functions. Familiarize yourself with data visualization and basic analytical concepts.

By investing in these areas, you not only prepare yourself for the role you are applying for today but also build a resilient foundation for the opportunities of tomorrow.

Apply via JobSetuu

Discover your next career milestone on JobSetuu. This Mandatory Internship(Unpaid): Backend / Full-Stack Developer for AI SaaS position is part of our commitment to bringing you the most relevant and high-impact job openings globally. At JobSetuu, we simplify your job search by aggregating premier listings and providing the tools you need to stand out. Don't miss the chance to elevate your professional journey—explore more opportunities and career insights on our platform today.