AI Fullstack Developer - 100% Remote (from anywhere in Europe) (m/f/d)

Job Description

Are you a highly skilled full stack developer with a minimum of 3 years of experience? Do you have exceptional problem solving and communication skills? If you value the flexibility of remote work and uninterrupted focus time, apply now at Digistore24 – one of Germany's top IT companies...

Who is Digistore24?

We are one of the fastest-growing tech companies in Europe.

What drives us? We shape the digital future! Our mission is to empower people with our software and expertise to share their knowledge online, enabling them to fulfill their dream of an own business. As a result, millions of people gain access to information that helps them reach their goals. To keep pace with our growth, we aim to expand our teams sustainably. We emphasize working with experts and strong personalities who share our values – regardless of their location.

Your new dream job

• Backend AI Integration into PHP-based Systems: Develop, expand, and maintain PHP middleware that connects our AI solutions with Zendesk and Digistore’s backend systems
• Frontend Feature Development with AI Capabilities: Build and enhance modern frontend components—optionally powered by AI tools—to enable interactive, intuitive user experiences for both internal and external applications
• Tool-Based Workflow Automation (e.g., n8n): Design, implement, and maintain process automations using workflow tools like n8n. This includes triggering actions via APIs, managing webhooks, and ensuring seamless orchestration across internal and third-party systems
• Set Up and Maintain Databases: Configure, monitor, and maintain relational databases that support the integration middleware, ensuring efficient data access, transformation, and storage for AI-powered features and backend services
• Sustain and Extend Integration Codebase: Take full ownership of the PHP-based middleware layer that acts as the connective tissue between AI services and Digistore’s platform—ensuring long-term stability, scalability, and performance

Your benefits at Digistore24

You will play a crucial role in shaping our cutting-edge projects in our collaborative work environment – while enjoying flexibility in working time and location.

• Work in our partner's coworking spaces (max. 3 days a week) or in your home office, as long as you can guarantee uninterrupted internet access
• Regular further education
• The stability of an extremely successful German high-tech company that is funded by its successful product and not by investors
• Outcome focused teams and a culture of direct feedback
• Modern equipment
• International, collaborative team with strong cohesion
• Spectacular team events in various European countries
• Autonomy from day one
• Contribution to the retirement scheme
• Work in your team on a first-name basis, without a dress code, and at eye level
• Flexible working hours from Mondays to Fridays

Requirements

Your superpowers

• Expertise in PHP and full-stack web development: Proven experience in building and maintaining scalable applications with PHP backends, databases and modern frontend tech.
• AI affinity and OpenAI ecosystem familiarity: Comfortably uses AI APIs like OpenAI, with practical understanding of prompt engineering and AI capabilities.
• API and niddleware integration proficiency: Skilled in connecting services via APIs and integrating third-party platforms with internal systems.
• Tool familiarity (n8n, Zapier, etc.): Ability to build complex automation flows with tools like n8n, with a deep understanding of event triggers and webhooks.
• Flexibility and willingness to take on challenges: Openness to handle tasks outside core expertise when needed, showing motivation and contributing to team goals in unfamiliar areas.
• PHP (Symfony or custom frameworks): Advanced-level backend engineering skills, ideally with experience in maintaining larger codebases and crafting robust middleware logic.
• JavaScript, HTML, CSS (Frontend Basics + React/Vue): Good working knowledge of frontend stacks to assist or own end-to-end feature development.
• REST API & Webhook Integration: Comfort with designing and integrating APIs, handling authentication flows (OAuth2, API keys), and managing error resilience.
• Database and Data Layer Management (SQL, NoSQL, Elasticsearch, etc.): Proficient in managing and interacting with various types of data systems, including relational databases (e.g., SQL), NoSQL stores (e.g., MongoDB), and search-optimized data layers (e.g., Elasticsearch). Skilled in data modeling, querying, transformation, and extraction using appropriate tools (e.g., SQLAlchemy, Pandas), supporting scalable integrations and AI-enhanced features.
• n8n,or Similar Workflow Tools: Building and maintaining workflow automations connecting Digistore systems with 3rd party apps.

This position is NOT for you if

• ... you lack strong PHP development experience: This role centers on working within a PHP-based middleware—robust backend PHP experience is critical.
• ... you want to train or deploy AI models: This is not an ML Ops or model-training role—focus is on AI integration, not research or deployment pipelines.
• ... you are not comfortable with automation platforms like n8n: Daily work involves process orchestration—understanding these tools is essential.
• ... you are not confident developing full-stack features alone: The role involves both backend and occasional frontend contributions—autonomy is expected.
• ... you struggle to translate AI potential into product features: While deep AI knowledge isn’t required, you must be fluent enough to identify valuable applications and integrate them.

Our values

Please take a REALLY close look at the values. Are you ready to live them?