(Senior) Data Scientist (all genders)

flaconi; Berlin (NH); On-site; USD 68,000 - 91,000; Full time

Benefits offered by this job

Permanent contract

Deutschland ticket

Flexible working hours

3 days home office per week

flaconi Academy

Wellbeing counseling

flaconi fitness

Emergency daycare

Pension contribution 20%

Dog-friendly office

Job summary

flaconi is seeking a (Senior) Data Scientist to join our DATA team in Berlin. You will train and deploy ML models, develop Generative AI and Agentic AI solutions, and build statistical models to optimize our European e-commerce platform.

You will work end-to-end with business stakeholders and collaborate with colleagues across seniorities in a flat, fast-paced environment. You will handle predictive modeling, NLP tasks, and time-series forecasting, using Python, PyTorch/TensorFlow, and

Qualifications

• 3+ years hands-on experience in developing and deploying ML solutions.
• Experience in e-commerce, fintech, or fast-paced agency environments.
• Proficiency with Databricks as a Data & AI platform and cloud platforms AWS/GCP/Azure.

Responsibilities

• Apply statistical techniques and ML algorithms for regression, classification, and clustering.
• Develop and productionalize Generative AI and Agentic AI solutions.
• Use time-series forecasting methods for predictive modeling.
• Conduct exploratory data analysis and feature engineering.
• Develop deep learning models with PyTorch, TensorFlow, or Keras.
• Address e-commerce use cases including demand forecasting, churn/CLTV, pricing, segmentation, recommender systems.
• Work with large-scale datasets using Apache Spark on a stack including Python, SQL, Databricks, AWS.

Skills

ML

Generative AI

MLOps

SQL

Python

Databricks

AWS

NLP

Data analysis

Tools

Apache Spark

PySpark

pandas

NumPy

scikit-learn

LightGBM

TensorFlow

PyTorch

Claude

Copilot

Databricks

AWS

Job description

At flaconi, we believe that diversity fuels creativity, innovation and growth. It thrives in all its forms of beauty. Our team is a mosaic of individuals from different backgrounds, cultures and life journeys, all united by a shared passion for beauty. Our commitment is grounded in our core values, particularly #trustinpeople. We hold ourselves accountable for creating an environment where every employee feels honestly valued, heard and empowered to contribute their unique perspectives to foster belonging.

flaconi is an equal opportunity employer and welcomes and encourages all qualified from all backgrounds and identities, regardless of ethnicity, race, gender identity, migration background, national origin, disability status, sexual orientation, religion, or age to apply.

If you require specific support during the application or interview process – e.g. live captions, more time for the interview or the task in a different format – just let us know so that we can adapt the process accordingly. We will do our best to make this possible.

We are seeking a (Senior) Data Scientist (all genders) to join a dynamic team of six within our DATA department. You'll dive into diverse challenges including training and deploying machine learning models, developing Generative AI and Agentic AI solutions, and statistical modeling. We believe in flat hierarchies, which means you'll work closely with colleagues of various seniorities in a fun environment. You'll play a key role in extracting valuable insights and developing data and AI solutions to optimize our e-commerce platform across Europe, taking end-to-end ownership of your projects and collaborating closely with business stakeholders along the way. Your contributions will have a direct impact on business decisions and process efficiency across a wide spectrum of unique use cases.

Your Role

• Employ statistical techniques and machine learning algorithms for regression, classification, and clustering (e.g., Gradient Boosting, Random Forest, Hierarchical Clustering, ensemble methods).
• Develop and productionalize Generative AI and Agentic AI solutions alongside modern NLP techniques using transformer architectures (e.g., BERT, GPT).
• Utilize time-series forecasting methods (e.g., ARIMA, LSTM, DeepAR, Prophet) for predictive modeling.
• Conduct exploratory data analysis (EDA), advanced feature engineering, and dimensionality reduction (PCA, t-SNE).
• Develop and implement deep learning models in PyTorch, TensorFlow, or Keras while leveraging transfer learning strategies.
• Showcase your skills across key e-commerce data science use cases including demand forecasting, churn and CLTV modeling, pricing, customer segmentation, recommender systems, and personalization.
• Handle large-scale datasets using distributed computing frameworks (Apache Spark) on a tech stack comprising Python (PySpark, pandas, NumPy, scikit-learn, LightGBM), SQL, Databricks (Data Lakehouse & ML platform), AWS (S3, Lambda, EC2, SageMaker, Bedrock), GitHub, and AI-augmented tools (Claude, Copilot) while collaborating directly to proactively address stakeholder business needs.

Your Profile

• Bring a minimum of 3 years of hands‑on experience in developing and deploying machine learning solutions for real‑world business problems.
• Demonstrate background exposure to e-commerce (ideal), fintech, or fast‑paced agency environments.
• Demonstrate hands‑on experience with Databricks as a Data & AI platform (required) alongside cloud platforms such as AWS, GCP, or Azure.
• Prove hands‑on experience in building, productionalizing, and deploying Generative AI or Agentic AI solutions.
• Apply hands‑on experience with MLOps practices and tools (required) for end‑to‑end model lifecycle management.
• Possess a strong grasp of core data science principles to select the most appropriate techniques, combined with advanced proficiency in SQL, Python (PySpark, scikit‑learn, NumPy, matplotlib, pandas), and AI‑augmented development tools (Claude, Copilot).
• Communicate exceptionally in English (written and verbal) to articulate complex concepts to non‑technical stakeholders, driving projects with full end‑to‑end ownership as a collaborative team player.

What We Offer

• Our employees matter to us: We offer you a permanent contract and cover the costs for your Deutschland ticket.
• Work‑life balance: 29 vacation days plus additional days off on the 24th and 31st December, flexible working hours, up to three days of working from home per week, working abroad options, paid sabbatical.
• flaconi Academy: Actively shape your own career path by taking advantage of our internal and external training opportunities.
• We care about your well being: We want to support you also during difficult times. For this, we offer you and your close relatives counseling sessions with mental health professionals.
• flaconi fitness: a wide range of sports options & discounts on memberships.
• Family first: Our “emergency-daycare” is there for you in out‑of‑the‑ordinary situations to look after your child on site at our office.
• Thinking about tomorrow together: flaconi subsidizes your savings contribution to the company pension scheme with an additional 20%.
• A comfortable working space with everything you need: High end technical equipment, fruits and drinks, no dress code and dogs are welcome in our office!
• Other perks: Great discounts in our online shop as well with our partner companies, cool team events & company parties!

Check out all benefits HERE.

Founded in 2011 as one of the first online perfumeries, flaconi is honored to work with more than 700 people from 60 different nations at the flaconi headquarters in Berlin‑Charlottenburg and its fulfillment center in Halle. Shape our company’s success with us and apply now online! We look forward to receiving your complete application documents including your earliest starting date and salary expectations.

flaconi will not accept unsolicited resumes from any source (e.g. recruitment agency) other than directly from a candidate.

AI Notice

We use AI‑powered tools to streamline and support individual steps in our recruiting process. For example, these tools help our recruiting team identify suitable candidates, prioritize applications, and gain insights relevant to recruiting. The AI does not make any hiring decisions. Every application is reviewed and evaluated by people, and all hiring decisions are made under human supervision and responsibility. Our AI system is regularly reviewed for potential biases and holds ISO 42001 certification for AI governance. If you have any questions about our use of AI or would like an explanation of the criteria, please feel free to contact our Talent Acquisition team at [e-mail] at any time.

The offered salary will always be within this range and is based on the outcomes of the recruitment process.

Salary range (annual brutto)

€60.000 — €80.000 EUR