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 info@optimistech.co to learn more about this amazing opportunity!

Optimis Tech

Latest Jobs

Machine Learning Engineer