Senior Data Scientist - Tech Lead (m/f/d)

Senior Data Scientist - Tech Lead (m/f/d)

As a Senior Data Scientist – Tech Lead, you will take ownership of
-
- end delivery for complex,
- driven projects that combine multiple machine learning models and software components.

You’ll lead technical design, architecture, and implementation for a key project within our Data Science organization, ensuring that our solutions deliver measurable business impact and technical excellence.

You will act as the technical anchor for a small team (2–5 members), coordinating design, delivery, and quality across all project components, while mentoring junior data scientists and collaborating closely with product managers, engineers, and business stakeholders.

This is a technical leadership role within a single complex project scope — focused on delivery excellence, technical
- making, and fostering a
- performing team culture.

YOUR ROLE AT SIXT

• You lead
  -
  - end delivery of data science projects, ensuring timely execution, technical quality, and alignment with business goals.
• You translate complex business challenges into scalable ML solutions, balancing experimentation with
  - term maintainability.
• You own the technical architecture, designing robust, integrated systems in collaboration with platform and product teams.
• You mentor and grow your team, fostering a collaborative,
  - driven culture and supporting career development.
• You champion engineering excellence, driving best practices in coding, testing, CI/CD, and observability across ML pipelines.
• You influence product strategy through clear communication of technical
  - offs, risks, and
  - driven insights to stakeholders.

YOUR SKILLS MATTER

• Applied Machine Learning Expertise You bring 5+ years of experience in Data Science or Machine Learning, with a strong track record of delivering
  - grade ML solutions across diverse domains.
• Technical Leadership You have 1+ years of experience in a technical leadership role, guiding teams through
  -
  - end ML project lifecycles—from problem framing to deployment.
• Modeling Mastery Proven ability to lead
  -
  - end machine learning projects from design to production.
• Engineering Excellence Strong proficiency in Python and common ML frameworks (e. g. , Py
  Torch, Tensor
  Flow,
  - learn). Experience designing and evaluating ML models using diverse metrics and validation strategies. Strong understanding of data pipelines, APIs, and productionization of ML systems.
• Mentorship & Best Practices You’ve mentored junior team members and championed engineering best practices, fostering a culture of learning and technical excellence.
• Communication & Collaboration You excel at translating complex technical concepts into clear business insights, and thrive in
  - functional environments with diverse stakeholders.
• Preferred Qualifications Experience in cloud environments (AWS, GCP, Azure) and modern MLOps practices. Exposure to
  - scale data systems, streaming data, or
  - model architectures.

WHAT WE OFFER

• 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 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.

About us

We are a globally leading mobility service provider with a revenue of €4. 00 billion and around 9, 000 employees worldwide. Our mobility platform ONE combines our products SIXT rent (car rental), SIXT share (car sharing), SIXT ride (taxi, ride, and chauffeur services), and SIXT+, along with partner discounts. Together with our franchise partners, we are present in more than 110 countries at 2, 000 rental stations. At SIXT,
- tier customer experience and outstanding customer service are our highest priorities. We believe in true entrepreneurship and
- term stability and align our corporate strategy with foresight. Get started with us and apply now!