Zalando SE

Senior Principal Applied Scientist - Ranking and Recommendations (all genders)

••
1 month ago
Estimated salary
€4,959 – €7,785per month

Auto-estimated from similar roles, location, experience & market data. Actual pay may vary.

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Description

Zalando's Ranking and Recommendations team is building the next generation of fashion discovery systems using deep learning, multi-objective optimisation and recommender systems. As Senior Principal Applied Scientist you drive the scientific roadmap and architect machine learning solutions that improve product selection, ranking and recommendations for more than 50 million customers. The role spans long-term research roadmaps across multiple product areas, acting as a trusted advisor to senior leadership on investments, strategic direction and make-or-buy decisions. It also involves mentoring senior and principal scientists and partnering with applied science leaders and product managers to deliver large, high-uncertainty projects in production. The position is based in Zurich or Berlin.

Requirements

  • PhD in Machine Learning and AI or equivalent experience, with 8+ years of industry experience
  • Experience in deep learning, multi-armed bandits or large-scale sequential decision-making systems, ideally applied to personalisation or ranking
  • Experience leading and shaping the scientific roadmap of teams across multiple product areas and working with senior applied science leaders
  • Ability to discover new business opportunities with product, science and engineering managers and solve business problems scientifically
  • Extensive track record of addressing real-world problems with machine learning across the entire product cycle
  • Authority on deep learning with a strong publication record
  • Extensive hands-on deep learning experience with Python and frameworks such as PyTorch or TensorFlow
  • Proficiency with cloud computing platforms such as AWS

Experience Level

InternEntry LevelMid-levelSeniorLeadExecutive

Benefits

Culture of trust, empowerment and constructive feedback with open source commitment, meetups and 70+ internal guilds
Knowledge sharing through tech talks, an internal tech academy, blogs and product demos
Employee share shop and 40% Zalando shopping discount plus discounts from external partners
Centrally located offices, public transport discounts and municipality services
Great IT equipment and flexible working times
Additional holidays and volunteering time off
Free beverages and fruit, diverse sports and health offerings
Extensive onboarding, mentoring and personal development opportunities in an international team
Relocation assistance for internationals
PME family service and parent and child rooms in selected locations

💰 Net Salary Calculator

Tax class 1, no church tax
Gross Salary
€76,464/year
€6,372/month
Total Deductions
€30,316
40% effective rate
Net Salary (Take Home)
€3,845/mo
€46,148/year

Deduction Breakdown

🏛️ Income Tax€14,434
🏦 Pension Insurance€7,111
🏥 Health Insurance€6,103
🫶 Care Insurance€1,674
📋 Unemployment Insurance€994

🏠 Cost of Living in Berlin

Monthly Essentials

Rent (1BR)
€1231
Groceries
€280
Transport
€75
Utilities
€220
Internet
€40

Lifestyle & Entertainment

Eating Out
€13
Gym/Month
€45
Coffee
€4
Beer (0.5L)
€4
Cinema
€12
Monthly Net Salary:€3,845
Comfortable Living:€1,897
Monthly Savings:€1,948 (51%)
💰

Strong savings potential: You could save €1,948 monthly, which is €23,376 per year.

💡 These estimates are based on average costs in Berlin. Actual expenses vary based on lifestyle, neighborhood, and personal choices. "Comfortable living" includes rent, utilities, groceries, transport, and reasonable dining/entertainment.

Eligible for the EU Blue Card

A salary of €76,464 meets the EU Blue Card minimum of €45,300 (2026).

The EU Blue Card is a residence permit for highly qualified non-EU workers. It offers a fast track to permanent residency and allows family reunification.

Processing
4-12 weeks
Visa fee
€100
Requirements
University degree + Job offer

Also eligible: EU Blue Card (Shortage Occupation) (€41,042+)

Documents needed

Valid passport
Recognised university degree
Employment contract or binding job offer
Proof of salary meeting threshold
Health insurance coverage
Biometric passport photo
Explore visa & relocation guides

📍 Life in Berlin

👥
Population
3.6M
⭐
Quality of Life
8.0
🇬🇧
English Friendly
9.0
💻
Tech Scene
9.0
🌍
International
10.0
🚇
Public Transport
9.0
🚴
Bikeability
9.0
🌬️
Air Quality
6.0
🌳
Green Spaces
7.0
🚗
Car Free
8.0
ℹ️

About Berlin

  • •Creative and tech hub
  • •Diverse neighborhoods
  • •Excellent public transport
🌤️

Climate

  • •Continental climate
  • •Cold winters
  • •Mild summers
  • •Four distinct seasons
❄️Jan: 0°C☀️Jul: 19°C📅Avg: 10°C
☀️1625 sunshine hours/year
🛡️

Safety

  • •Generally safe
  • •Higher petty crime than Munich
  • •Some areas less safe at night
Overall:7.0
🏥

Healthcare

  • •Good hospital network
  • •Charité is world-renowned
  • •Wait times can vary
Quality: 9.0Access: 8.0
🎭

Culture

  • •World-class museums
  • •Vibrant art scene
  • •Rich history
10.0
🎉

Nightlife

  • •Famous club scene
  • •Diverse nightlife
  • •24/7 culture
10.0
🏞️

Recreation

  • •Many parks
  • •Lakes
  • •Tiergarten
  • •Active outdoor scene
8.0
💰

Cost of Living

  • •More affordable than Munich
  • •Prices rising rapidly
  • •Still cheaper than many European capitals
🏠 Rent (1BR center):€1231
⚡ Utilities:€220
🛒 Groceries:€280
🍽️ Dining out:€16

Europe's leading online multi-brand fashion and lifestyle platform, serving 61+ million active customers across 29 European markets with 7,000+ brands. Generating €15.3 billion in GMV and €10.6 billion in revenue annually (FY 2024), the DAX-listed company operates a consumer marketplace for apparel, footwear, accessories, and beauty, alongside Lounge by Zalando (off-price), and a growing B2B ecosystem comprising ZEOS (logistics-as-a-service), Tradebyte, and SCAYLE. Following its transformative €1.1 billion acquisition of ABOUT YOU in 2025, Zalando employs ~16,100 people from 140+ nationalities.

Relocation support provided
€per month
€2kthis job posts €5k – €8k€20k

Your situation in Germany

The default for anyone single, divorced or widowed.

Only changes the church tax rate — 8% in Bavaria and Baden-Württemberg, 9% everywhere else.

Childless employees over 23 pay a higher Pflegeversicherung (care insurance) rate.