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Optimis Tech

Machine Learning Engineer

Optimis Tech
Germany · Contract · Mid-Senior

Job Title: Machine Learning Engineer

Location: Germany (Remote or Hybrid – Must be based in Germany or EU)

Industry: Fintech

Type: Freelance / Contract (6–12 months, with high potential for extension)

Rate: €900/day


About the Company:

Our client is a fast-growing fintech scale-up based in Europe, building AI-powered financial solutions that help individuals and businesses make smarter money decisions. Backed by leading investors, they’re expanding their ML team to accelerate product innovation—and they’re looking for a sharp Machine Learning Engineer to join on a freelance contract basis.


The Role:

As a Machine Learning Engineer, you’ll work closely with product and engineering teams to design, develop, and deploy machine learning models into production. This is a hands-on role with real business impact, helping shape core financial intelligence features.


Key responsibilities:

  • Build and maintain machine learning models for risk scoring, fraud detection, personalisation, and other fintech use cases
  • Pre-process, clean, and transform large datasets using modern data pipelines
  • Deploy models into production environments using MLOps best practices
  • Collaborate with data engineers, product managers, and software engineers
  • Contribute to model monitoring, performance tuning, and retraining workflows
  • Help design the overall ML architecture and experimentation framework


Tech Stack:

Experience with some or most of the following is preferred:

  • Languages: Python (NumPy, pandas, scikit-learn, PyTorch, TensorFlow)
  • Tools: MLflow, Airflow, Docker, Weights & Biases
  • Infra: AWS, SageMaker, GCP Vertex AI, Kubernetes
  • Data Tools: Snowflake, BigQuery, SQL, dbt
  • MLOps: CI/CD pipelines, model versioning, monitoring tools


Requirements:

  • 5+ years of experience in applied Machine Learning
  • Experience working as a contractor or freelancer (or very comfortable doing so)
  • Strong understanding of model deployment and MLOps
  • Comfortable working independently and collaborating remotely
  • Fluent in English (German is a bonus)
  • Based in Germany or EU with right to work as a contractor


Why Join?

  • Work with one of Germany’s most innovative fintechs
  • Build real-world ML systems that impact thousands of users
  • Flexible schedule & remote-first culture
  • Long-term freelance opportunity (contract extensions likely)
  • Supportive and highly technical team
  • Fast onboarding process


Please contact [email protected] to learn more about this amazing opportunity!

Key Skills

Ranked by relevance

machine learning ai pytorch python docker pandas mlflow numpy mlops cicd sql aws gcp
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Posted
Apr 11, 2025
Type
Contract
Level
Mid-Senior
Location
Berlin

Industries

Financial Services Technology Information Media

Categories

Information Technology Finance

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