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· Senior
Senior Data Scientist, AdTech Tribe, Growth Alliance (f/m/x)
Data Engineer
• Senior
• On-site
• Full-time
• 📍 Warszawa
A senior data science role in the AdTech Tribe within the Growth Alliance at HelloTech in Warsaw, focused on maximising the performance of Search channels to increase return on investment for the marketing budget. The service provider designs and implements statistical and machine learning models that combine internal conversion data with external ads platform data. Success requires a curious, fast learner who relentlessly prioritizes problem statements, proposes multiple solutions and tailors them by effort and likely impact.
Responsibilities
- ▹Collaborate within a team of skilled data scientists and engineers
- ▹Work closely with cross-functional teams (engineering, product, marketing) to translate business objectives into data-driven strategies
- ▹Own the delivery and execution of scientific optimization models and algorithms from data collection to operationalization
- ▹Align models closely with non-technical stakeholders
- ▹Experiment and explore opportunities to continually refine technical approaches
- ▹Leverage statistical analysis and machine learning to enhance incrementality measurement solutions
- ▹Devise new ways to improve the data products delivered to stakeholders
Requirements
- ▹Proven scientific work in a Bachelor's, Master's or PhD in statistics, physics, economics, mathematics, data science or similar
- ▹3+ years of experience as a (senior) data scientist, preferably in e-commerce
- ▹In-depth knowledge of interpreting experiment results, handling statistical uncertainties and applying models such as regressors and classifiers
- ▹Experience with forecasting algorithms, portfolio optimization and Vector Autoregression
- ▹Fluency and long-term experience in Python, including its scientific stack (Numpy, Pandas, Scikit-learn, Matplotlib)
- ▹Ability to retrieve (SQL), manipulate and analyse large, heterogeneous datasets and build data pipelines
- ▹Familiarity with software development practices and tools (Git, Docker, AWS)
- ▹Critical thinker and creative problem solver who strives for excellence
- ▹Team player who collaborates with stakeholders from different backgrounds internationally
- ▹Exceptional communication and collaboration capabilities
Nice to have
- ▹Strong marketing domain knowledge
- ▹Experience with the Google Search ecosystem and attribution models
- ▹Experience in Databricks
Soft skills
Curiosity and fast learningCritical thinkingCreative problem-solvingTeamworkExceptional communication
What we offer
- ▹Global collaboration with experienced engineers and product partners across international teams
- ▹Building and operating modern systems at global scale for 6+ million customers
- ▹Technical, product and design leadership in an autonomous, product-led setup
- ▹End-to-end development and delivery ownership
- ▹Access to the Warsaw Centre Point workspace with showers, breakout zones, outdoor space, cycle parking and refreshments
About the company
HelloTech is HelloFresh's global technology backbone with more than 1000 people, building the digital products that power an end-to-end food experience across a subscription-based, direct-to-consumer model.
Education: Alap-, mester- vagy doktori fokozat statisztika, fizika, közgazdaságtan, matematika, adattudomány vagy hasonló szakterületen