
Full-Stack AI Developer, Engineer
salesHAX Consulting GmbH
full-time
Posted on:
Location Type: Remote
Location: Germany
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Salary
💰 €60,000 - €110,000 per year
Tech Stack
About the role
- RAG pipeline & AI: Architect and develop the server-side RAG pipeline, covering query processing, embeddings and vector search through to prompt construction.
- Full-stack development: Build both frontend and backend, ensuring that all LLM API calls are strictly handled server-side.
- Subscriptions & payments: Implement a three-tier subscription model including a 7-day trial using Stripe.
- Automation (Data Ingestion): Create a pipeline (e.g., using Make.com or n8n) that automatically transcribes new audio and video content (Whisper API), cleans it, splits it into chunks, and loads it into the vector database.
- Data Intelligence: Develop an internal behavioral analytics dashboard that tracks search queries, emotional tone, content gaps, and usage-limit events in real time.
Requirements
- Deep experience building modern full-stack web applications, ideally with our preferred tech stack: Next.js (React) for the frontend and Node.js (Express or Next.js API Routes) for the backend.
- Practical experience building RAG systems, managing vector databases (Pinecone or Weaviate), and working with LLM APIs (notably Anthropic Claude Sonnet and OpenAI).
- Proficiency with PostgreSQL (e.g., via Supabase) and authentication solutions such as Clerk or Supabase Auth.
- Experience securely implementing Stripe (subscriptions, dunning, webhooks).
- Strong security mindset: API keys and rate limits must be enforced and processed server-side.
- Ability to work independently within a tight 12-week build-to-launch timeline and to proactively align technical decisions with our Project Lead.
Benefits
- 100% remote: Work flexibly from wherever you want.
- Cutting-edge tech: Work on a real, innovative RAG AI system using modern LLMs and a contemporary tech stack.
- Responsibility & impact: You will be a key contributor to the system architecture of a product that will have high visibility after launch.
- Efficiency: Short communication lines directly with the Project Lead.
- Prospect: Option for long-term collaboration for maintenance and further development after a successful launch.
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
full-stack developmentRAG systemsvector databasesPostgreSQLStripeAPI developmentdata ingestionbehavioral analyticsNext.jsNode.js
Soft Skills
independenceproactive alignmentstrong security mindsetability to work under tight deadlines