Senior Software Engineer

Job Category

  • Technology & UX/UI Design


  • Hamburg


  • Full-Time
  • Professional Level


  • Zalando Marketing Services

At Zalando Media Solutions we create meaningful connections between brands and consumers through a deep understanding of their personalities. We are working with brands, agencies and publishers from the fashion world and beyond to produce innovative, impactful campaigns that reach the right audience at the right moment. Thanks to its holistic mix of cutting-edge and privacy compliant technology, in-depth audience insights, expansive reach and compelling content, brands produce successful campaigns across multiple digital marketing channels.

As a Senior Software Engineer, you will design, develop and maintain our state-of-the-art advertisement platform that works at scale. You will collaborate with Engineering Leads, Engineers, Scientists, Product Managers and other teams in Zalando. You will pioneer data/evidence driven content optimization at Europe’s largest fashion online retailer.

You will also act as a mentor to junior team members, and take initiative in improving our Engineering and Operation practices. You will champion technical excellence and operational excellence.


  • You have experience in large scale data processing systems and/or high-load transactional systems, preferably based on open-source software
  • Solid software development skills in Java. Python/Scala and Unix shell scripting skills will be a big plus
  • Strong expertise in Data Structure/Algorithm. Passion for developing and maintaining reliable and scalable software
  • Experience in low-level programming like network programming, concurrent (multi-threading) programming is a plus
  • Experience/Expertise in distributed (real-time) processing frameworks (Spark, Hadoop, Presto, Storm, Flink, Heron etc.), infrastructure frameworks (Docker, Mesos, Kubernetes, AWS) is a plus
  • Ability to communicate effectively with diverse teams
  • English language fluency


  • Design, develop and operate high-load transactional systems and data processing systems in the area of advertisement optimization (real-time advertising optimization, training of machine-learning based optimization algorithms)
  • Maintain, optimize and extend our software infrastructure and toolings to improve our engineering productivity, software quality and operational excellence (high-availability, fault tolerance etc.)
  • Understand and communicate effectively with internal business customers, partners, and stakeholders


Community. Tech culture of trust and empowerment, open source commitment, meetups, game nights, +100 internal technical and fun guilds, tech talks, product demos, Coderdojos, Hack weeks, parties and events.

Perks. Competitive salary, 40% Zalando shopping discount, discounts from external partners, public transport discounts, relocation assistance for internationals, free drinks and fruits, hardware of your choice.

Development. Tour of Mastery, extensive onboarding, personal branding support, opportunity to attend and speak at data science conferences and Meetups, and encouragement to publish your work.

Work Environment. Self-organized, autonomous teams and flexible working hours. Zalando Media Solution Hamburg retains a strong start-up culture, and therefore you can expect that your work will have immediate impact and you will participate in developing significant improvements.

Scale. Unparalleled levels of data and opportunities.

Want to join us? Then go ahead and apply!

Please make sure your application is written in English. If you have any questions about our recruiting and hiring processes, or If you are not sure whether your qualifications and work experience is suffice, please contact your recruiter: Steffen Volk

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