Senior Software Engineer (Machine Learning) - Lounge Scalability Team (all genders)

Full time
Job Category
Software Engineering - Data


Zalando Lounge is the fastest growing part of Zalando, now turning over billions of euros each year.  

As a Senior Software Engineer at Lounge Scalability, you will join the team based in Berlin to contribute and shape the development of ML and data pipelines, following engineering best practices with a strong focus on operational excellence. 

In a close collaboration with applied scientists, product managers and engineers you will build a wide range of ML based products for algorithmic optimizations throughout the assortment lifecycle in Lounge. They are used on a  day to day basis in business processes to make major steering decisions that are crucial for further scaling Lounge business.

This position is a unique opportunity to have direct impact, and connect with exceptional talents from many different backgrounds.


At Zalando, our vision is to be inclusive by design. And this vision starts with our hiring - we do not discriminate on the basis of gender identity, sexual orientation, personal expression, ethnicity, religious belief, or disability status. You are welcome to leave out your picture, age, or marital status from your application. We only assess candidates on their qualifications and merit. 

We want to provide you with a great candidate experience. Feel free to inform us of any accommodations you may need, so we can best support you throughout the hiring process. 

do.BETTER - our diversity & inclusion strategy:
Our employee resource groups: 



  • Develop and support automated, scalable ML and data pipelines, ensuring they run reliably and are scheduled appropriately.

  • Contribute to develop the full ML lifecycle for different kinds of models

  • Build analytical and operational dashboards to enable your team and stakeholders to make data driven decisions.

  • Contribute to the definition of best practices and set up proper tooling to support them, such as continuous integration/delivery, code/data quality, test coverage, etc.

  • Enabling the experimentation on ML models and optimization algorithms with efficient and scalable tooling


  • You have 3+ years of professional work experience with Data and Machine Learning pipelines and are an ML Ops expert. 

  • You have strong programming skills in Python

  • You are proficient with state-of-the art software engineering practices

  • You have hands-on experience with relevant software technologies: Cloud infrastructure (ideally AWS & Kubernetes),relational database(Postgres, MySQL). Experience with ETL, data warehouses or data lakes is a big plus(Airflow, DBT). 

  • Experience with data analysis tools (e.g. Pandas, numpy, Plotly, Jupyter Notebooks, Databricks) are desirable.

  • Interest in algorithms, machine learning, mathematics and experience in designing and developing corresponding optimization software systems



Zalando provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offer.

  • Employee shares program

  • 40% off fashion and beauty products sold and shipped by Zalando, 30% off Zalando Lounge, discounts from external partners

  • 2 paid volunteering days a year

  • Hybrid working model with 60% remote per week

  • Work from abroad for up to 30 working days a year

  • 27 days of vacation a year to start

  • Relocation assistance available (subject to prior agreement)

  • Family services, including counseling and support

  • Health and wellbeing options (including Gympass)

  • Mental health support and coaching available

  • Drive your development through our training platform and biannual peer-to-peer review

Learn all about Zalando and our values here:  


Orjada Bilo

Please note that all applications must be completed using the online form - we do not accept applications via e-mail.

Our Software Engineering teams deploy software extensively, managing a broad set of applications and conducting thousands of deployments per week. The Software Engineering team enables Zalando as Europe’s number one multi-brand, digital platform for fashion, beauty, and lifestyle for our partners and customers. As a Zalando Software Engineer, you’ll be part of a community of thousands of colleagues across Europe.

Learn More

Software Engineering

Zalando SE Berlin headquarter BHQ-X

About Zalando

It’s the perfect time to join Zalando on our journey to build the leading pan-European ecosystem for fashion and lifestyle e-commerce. Help us offer an inspiring and quality multi-brand shopping experience for fashion and lifestyle products to about 50 million active customers in 25 markets. Or be part of our logistic infrastructure, software or service capabilities to help brands and retailers run and scale their entire e-commerce business, on or off Zalando. Join our Zalando ecosystem, to enable positive change for the fashion and lifestyle industry. 

Learn more about our culture