Machine Learning Engineer | Marketing (m/f/d) Lisboa

Machine Learning Engineer | Marketing (m/f/d)
Lisboa
Lisboa, Lisboa, Portugal

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Job Description

Join our team of machine learning experts to bring
- edge causal inference models and algorithms into production at scale. Collaborate closely with data scientists to deploy, optimize, and maintain models that drive performance marketing, portfolio optimization, and
- scale ad automation. You will build robust and scalable pipelines, ensuring these advanced solutions deliver actionable insights and measurable impact in
- world applications.

Job Description

Join our team of machine learning experts to bring
- edge causal inference models and algorithms into production at scale. Collaborate closely with data scientists to deploy, optimize, and maintain models that drive performance marketing, portfolio optimization, and
- scale ad automation. You will build robust and scalable pipelines, ensuring these advanced solutions deliver actionable insights and measurable impact in
- world applications.

YOUR ROLE AT SIXT

• You work with data scientists to deploy causal inference models for online marketing, including A/B testing,
  -
  - differences, propensity score matching, and double machine learning, in
  - world systems.
• You design and maintain machine learning pipelines that support model deployment, making sure they are reliable, scalable, and work well with existing tools and platforms.
• You collaborate with product managers, engineers, and data scientists to turn experimental models into working systems that support business goals.
• You monitor model performance, accuracy, and speed, and make regular updates to keep models effective as business needs change.
• You automate routine tasks and build systems that can handle large amounts of data and support fast model responses.
• You document your work and share technical details and results with both technical and
  - technical team members to support collaboration and understanding.
  
  

• You engineer and maintain
  - grade machine learning systems, ensuring robustness, scalability, and high availability in
  - world environments.
• You leverage Python and
  - standard ML frameworks like Tensor
  Flow, Py
  Torch, and Scikit-learn to build and operationalize intelligent models.
• You design and orchestrate
  -
  - end ML workflows using tools such as MLflow and Apache Airflow, enabling reproducibility, automation, and model governance at scale.
• You develop and deploy containerized microservices using Docker and Kubernetes, and integrate with RESTful APIs to support modular,
  - native architectures.
• You apply causal inference techniques—including A/B testing,
  -
  - differences, and propensity score matching—to support
  - driven pricing and experimentation strategies.
• You work
  - on with cloud platforms like AWS and big data technologies such as Apache Spark, Dask, or Polars, enabling distributed processing and efficient offline learning pipelines.
  
  

• Generous Time Off Enjoy 28 days of vacation, an additional day off for your birthday, and 1 volunteer day per year
• Work-Life Balance & Flexibility Benefit from a hybrid working model, flexible working hours, and no dress code
• Great Employee Benefits Access discounts on SIXT rent, share, ride, and SIXT+, along with partner discounts
• Training & Development Participate in training programs, external conferences, and internal dev & tech talks designed for your personal growth and development
• Health & Well-being Private health insurance to support your
  - being
• Additional Perks Enjoy the Coverflex advantage system to enhance your employee experience
  
  

Seniority level

• Seniority level

  Entry level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Automotive

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