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Makersite GmbH

Senior Data Scientist (m/f/x)

RemoteGermany only
Published
Role
Data Science
Experience
Senior
Employment
Full-time
Company size
Mid-size
€80k–€100k/yr
Check eligibility

Open to DE only. Set where you work from to check your eligibility.

Core skills

PythonLLMsAI agents

Required skills

FastAPIRESTGraphQLprompt engineeringfine-tuningevaluationGPTClaudeHugging Facevector databasesPineconeWeaviateChromapgvectorLangGraphLangChainCrewAIvLLMTGIDockerKubernetesGitHub Actions

Optional skills

MLflowWeights & BiasesAWS BedrockGCP Vertex AIAzure OpenAIopen-source AI/ML projectssustainabilityclimate/product domain

What you'll do

  • Build, deploy, and maintain scalable APIs that serve AI/ML models in production environments
  • Own end-to-end delivery of AI solutions, from prototyping to fully productionized systems
  • Design and implement Retrieval-Augmented Generation (RAG) systems using vector databases
  • Build and orchestrate AI agents using frameworks such as LangGraph, CrewAI, or similar
  • Evaluate and select appropriate large language models (LLMs) and foundation models based on specific use cases
  • Continuously optimize model inference for latency, cost efficiency, and throughput at scale
  • Identify bottlenecks and implement improvements to ensure high-performing systems
  • Implement robust monitoring, logging, and alerting for deployed models and services
  • Ensure system reliability, uptime, and performance through best practices in production ML systems
  • Build and maintain CI/CD pipelines for seamless testing, deployment, and iteration of AI systems
  • Contribute to evolving engineering standards as the company transitions from rapid experimentation to more structured, scalable operations
  • Work closely with product and engineering teams to integrate AI capabilities into core products
  • Translate business problems into technical solutions and clearly communicate trade-offs
  • Help bring stability and structure to AI development processes during a high-growth, scale-up phase
  • Balance speed of execution with the need for maintainable, well-documented, and scalable systems
  • Take ownership of ambiguous problems and drive them through to practical, production-ready outcomes

What they require

  • 5+ years of experience in Python, with ~10 years of overall software engineering or data experience (candidates transitioning from backend engineering are welcome)
  • Proven experience building and deploying production-grade APIs (preferably with FastAPI; REST/GraphQL experience is a plus)
  • Hands-on experience working with large language models (LLMs) and LLMOps, including prompt engineering, fine-tuning, and evaluation (e.g., GPT, Claude)
  • Strong experience fine-tuning open-source models (e.g., Hugging Face ecosystem)
  • Practical experience designing and working with vector databases (e.g., Pinecone, Weaviate, Chroma, pgvector)
  • Experience building AI agents using frameworks such as LangGraph, LangChain, CrewAI, or similar
  • Solid understanding of model deployment and serving (e.g., vLLM, TGI, or managed endpoints)
  • Experience with CI/CD pipelines and modern deployment practices (Docker, Kubernetes, GitHub Actions)
  • Strong experience working with and processing large-scale text datasets
  • Builder mindset: Comfortable owning systems end-to-end, from experimentation through to production
  • Bias for action: Operates effectively in a fast-paced, evolving environment with shifting priorities
  • Systems thinker: Designs solutions with scalability, reliability, and maintainability in mind
  • Pragmatic decision-making: Balances technical excellence with speed and business impact
  • Ownership & accountability: Takes responsibility for outcomes, not just outputs
  • Clear communicator: Able to articulate complex technical concepts to both technical and non-technical stakeholders
  • Residing in and legally permitted to work in the EU.

Benefits

  • Competitive Salary – We reward your skills and experience with a compensation package that reflects your value.
  • 30 Days Paid Time Off – Take the time you need to recharge and maintain a healthy work-life balance.
  • Remote-First Flexibility – Work from anywhere in the EU, with the option to collaborate in person at our offices in Stuttgart, Berlin (role dependent).
  • Generous Learning & Development Budget – We invest in your growth, providing ample resources for personal and professional development.
  • Choose Your Ideal Work Equipment – Whether you prefer Apple or Microsoft, we’ll equip you with the tools you need to excel.

Makersite GmbH

Software
€80k–€100k/yr