Principal Software Engineer

Zalando Finland Oy; Helsinki; On-site; EUR 80,000 - 120,000; Full time

Benefits offered by this job

Competitive salary

Zalando shopping discount (40%)

Relocation assistance for internationa

Knowledge sharing & tech talks

Job summary

Zalando Finland Oy is seeking a Senior Data Engineer for the Campaign and Content Platforms team in Helsinki. You will own data products architecture, design scalable ELT pipelines, and enforce data governance across Unity Catalog and Delta Live Tables.

Ideal candidates have deep Databricks expertise, Spark/PySpark, Python, and a track record building streaming and batch data pipelines. This role offers a dynamic, international environment with opportunities to influence data-driven decisions.

Qualifications

• Experience with the Databricks ecosystem (Unity Catalog, Delta Live Tables).
• Strong knowledge of Bronze/Silver/Gold Medallion Architecture and Delta Lake internals.
• Proficiency in Spark (PySpark) and Python for large-scale data processing.

Responsibilities

• Take responsibility for Data Products architecture, development and quality.
• Design, build, and maintain scalable ELT pipelines using Delta Live Tables.
• Define data contracts with source systems and ensure governance and security in Unity Catalog.
• Improve data quality and pipeline reliability through analysis and root-cause investigations.
• Collaborate with development teams and Zalando Data Foundation; document methods and learnings.

Skills

Data pipeline design

Data governance

English communication

Tools

Databricks Unity Catalog

Delta Live Tables

Delta Lake

Apache Spark

PySpark

Python

Terraform

Docker

Git

AWS

REST APIs

Job description

INCLUSIVE BY DESIGN

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: https://corporate.zalando.com/en/our-impact/dobetter-our-diversity-and-inclusion-strategy

Our employee resource groups: https://corporate.zalando.com/en/our-impact/our-employee-resource-groups

ABOUT THE ROLE & TEAM

The Campaign and Content Platforms team is building the technology that delivers inspirational content and retail campaigns for our customers. Content performance data we produce and manage is foundational to steering the business, operations and personalisation and optimisation systems. As a cross-functional domain team of 50+ engineers, product managers, product designers in Helsinki and Berlin, we build platforms that work for all teams, ensuring content goes through the same publishing pipelines and processes.

WHAT WE’D LOVE YOU TO DO (AND LOVE DOING)

• You will take responsibility for our department’s Data Products architecture, development and quality
• You will design, build, and maintain scalable ELT pipelines using Databricks Delta Live Tables (DLT).
• You will liaise with the owners of source systems to define and align Data Contracts.
• You will implement and oversee Data Governance and security standards within the Unity Catalog.
• You will perform technical analysis and root cause analysis to improve data quality and pipeline reliability.
• You will build and maintain strong working relationships with the development teams and the Zalando Data Foundation.
• You will record and share information on current working methods and lessons learned to foster a high-performance data culture.

WE’D LOVE TO MEET YOU IF

• You have extensive experience with the Databricks ecosystem (Unity Catalog, Delta Live Tables, Workflows).
• You have a deep understanding of the Medallion Architecture (Bronze, Silver, Gold) and Delta Lake internals.
• You are proficient in Apache Spark (PySpark) and Python for large-scale data processing.
• You have several years of experience in building and maintaining scalable Streaming & Batch pipelines, specifically using CDC (Change Data Capture) from RDBMS (e.g., MySQL/BinLogs).
• You are familiar with Infrastructure as Code (Terraform), Docker, Git (trunk-based development), and DevOps principles.
• You bring the ability to translate complex business requirements into robust, de-normalized data models optimized for Lakehouse performance.
• You have a good understanding of Cloud Infrastructure (AWS), REST APIs, and secure data exchange.
• You possess excellent verbal and written communication skills in English and the ability to accurately document designs and processes

OUR OFFER (To be updated)

• Culture of trust, empowerment and constructive feedback, open source commitment, meetups, game nights, 70+ internal technical and fun guilds, knowledge sharing through tech talks, internal tech academy and blogs, product demos, parties & events
• Competitive salary, employee share shop, 40% Zalando shopping discount, discounts from external partners, centrally located offices, public transport discounts, municipality services, flexible working times, additional holidays and volunteering time off, free beverages and fruits, diverse sports and health offerings Extensive onboarding, mentoring and personal development opportunities and an international team of experts Relocation assistance for internationals

Learn all about Zalando and our values here: https://jobs.zalando.com/en/?gh_src=22377bdd1us.

For more information about our office and teams in Helsinki, please visit: https://www.zalandohelsinki.com/

If you think you have what it takes, we encourage you to apply even if you don't meet every single requirement. You may just be the right candidate for this or other roles. It’s the perfect time to join Zalando on our journey, from being a pioneer in the world of e-commerce, to the Starting Point for Fashion in Europe. We connect customers, brands, and partners across 25 markets. Help us drive digital and sustainable solutions for fashion, logistics, advertising and research, bringing head-to-toe fashion to 50 million active customers through a team of diverse skill-sets, cultural backgrounds, and interests.

Our values do.More - our sustainability strategy Follow us on Instagram: instagram.com/insidezalando