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Senior Full-Stack Developer – AI Engineer, German-speaking
sandan AI
Remote
Website
LinkedIn
Senior Full-Stack Developer – AI Engineer, German-speaking
Germany
Full Time
1 hour ago
No Sponsorship
Apply Now
Key skills
Docker
JavaScript
Kubernetes
MySQL
Next.js
Node.js
Numpy
Pandas
Postgres
Python
PyTorch
React
Scikit-Learn
SQL
Tensorflow
TypeScript
AI
Machine Learning
ML
Generative AI
LLM
Claude
RAG
Agentic
TensorFlow
scikit-learn
NumPy
MLOps
MLflow
LangGraph
Pinecone
Weaviate
Analytics
React.js
Vercel
PostgreSQL
REST API
Git
GitHub
SaaS
A/B Testing
About this role
Role Overview
Develop and maintain our full‑stack applications within a modern JavaScript/TypeScript ecosystem
Design and implement scalable backend services with Node.js and Nest.js
Implement high‑performance frontend solutions using React.js and Next.js
Design and optimize relational databases (PostgreSQL, MySQL, MS SQL)
Containerize and orchestrate services using Docker and Kubernetes
Develop and integrate REST APIs
Build and operate data pipelines, feature stores and ML workflows for our agentic systems
Develop, train and evaluate machine learning models for marketing use cases (attribution, targeting, forecasting, anomaly detection)
Implement retrieval‑augmented generation (RAG) pipelines (embeddings, vector stores, re‑ranking)
Set up and maintain LLM evaluation frameworks, prompt optimization and systematic quality benchmarks
Apply code harnesses (notably Claude Code and Codex) in the daily development process — from planning through implementation to code review
Collaborate closely with the founding team on the product architecture of agentic systems
Requirements
Several years of professional experience in full‑stack development
Strong knowledge of TypeScript and JavaScript
Confident with React.js, Next.js, Node.js and Nest.js
Experience with relational databases (PostgreSQL, MySQL, MS SQL)
Practical experience with container technologies (Docker, Kubernetes)
Familiarity with REST API design and Git workflows
Solid Python skills including the common data/ML stack (pandas, NumPy, scikit‑learn, PyTorch or TensorFlow)
Experience across the end‑to‑end ML model lifecycle: data preparation, feature engineering, training, validation, deployment, monitoring
Understanding of statistical fundamentals (hypothesis testing, regression, classification, time series)
Experience with modern LLM workflows: prompt engineering, RAG, embeddings, vector databases (e.g., Pinecone, Weaviate, pgvector)
Practical experience in model evaluation: metrics, benchmarks, A/B testing, systematic evaluation frameworks
Familiarity with MLOps tools (e.g., MLflow, Weights & Biases, DVC) is a plus
Experience with Claude Code and/or Codex is highly welcome — otherwise a clear willingness to actively learn them
Excellent German (C2) and English skills (at least C1)
Genuine interest in generative AI and agentic systems
Builder mentality: you deliver production software, not just prototypes
Analytical mindset: you make data‑driven decisions and can critically assess model behavior
Preferably experience developing custom agents, sub‑agents or specialized coding workflows (e.g., Custom Commands)
Experience with MCP (Model Context Protocol) and tool‑calling architectures
Familiarity with agent frameworks (Mastra, LangGraph, Vercel AI SDK)
Experience with fine‑tuning, LoRA adapters or distillation
Background in marketing analytics, attribution models or performance marketing data
Publications, Kaggle achievements or open‑source contributions in the ML/AI space
Background in B2B SaaS or enterprise software
Tech Stack
Docker
JavaScript
Kubernetes
MySQL
Next.js
Node.js
Numpy
Pandas
Postgres
Python
PyTorch
React
Scikit-Learn
SQL
Tensorflow
TypeScript
Benefits
Competitive salary and equity program (ESOP)
Fully funded access to all relevant code harnesses, LLM APIs and developer tools (Claude Max, Codex, GitHub Copilot, etc.)
Compute budget for experiments, model training and ML workloads
Modern hardware setup (MacBook Pro of your choice)
Flexible working hours and remote options
Office in Berlin and a location in Dubai (DIFC AI Campus)
Steep learning curve in agentic AI, LLM orchestration and AI‑native engineering
Apply Now
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Senior Full-Stack Developer – AI Engineer, German-speaking at sandan AI | JobVerse