Medior Data Engineer

Xomnia; Amsterdam; On-site; EUR 48,000 - 60,000; Full time

Benefits offered by this job

Stock Appreciation Rights

€5,000 development budget

25 vacation days

Company trips

Bar and lunch at office

Pension plan

Flexible working options

Job summary

Xomnia in Amsterdam is seeking a Medior Data Engineer to design ingestion pipelines, build layered data models, and ensure data quality for clients like KLM, Enexis and Rabobank. You will work across cloud platforms and modern data warehouses to keep data trustworthy and accessible.

The role offers mentorship, growth opportunities, and hands-on time to explore new tools. Expect collaboration with data analytics engineers and scientists, and a mix of office and home-working with occasional client

Qualifications

• 3+ years of experience in data engineering or pipeline-focused roles.
• Bachelor's or master's degree in Data Science, AI, Computer Science, or related field.
• Strong SQL and Python skills with distributed data processing experience.
• Hands-on experience with Azure, AWS or GCP.
• Experience with Databricks or Snowflake and modern data platforms.
• Solid understanding of data modeling, validation, and testing.

Responsibilities

• Designing and maintaining robust data pipelines covering ingestion, transformation, and modeling.
• Engineering ingestion from diverse sources into cloud storage and warehouses.
• Building and evolving layered data models reusable for analytics and AI use cases.
• Provisioning and managing cloud data infrastructure on Azure and/or AWS.
• Operating and optimizing platforms like Databricks and Snowflake for reliability, performance, and cost efficiency.

Skills

SQL

Python

Airflow

dbt

PySpark

Data modeling

Education

Bachelor's or Master's in Data Science / AI / Computer Science

Tools

Azure

AWS

GCP

Databricks

Snowflake

Job description

Joining Xomnia means stepping into a community of over 20 nationalities united by a shared passion for harnessing data and AI to tackle immediate and future challenges. The Xomnia way is defined by a culture of open sharing, where curiosity is celebrated, and the courage to challenge the status quo is encouraged.

Are you ready to take on this challenge?

At Xomnia, We believe that great data products are only as good as the plumbing underneath them. As a Medior Data Engineer, you will build and run the pipelines, models, and cloud infrastructure that make data trustworthy, timely, and available for organizations like KLM, Enexis, and Rabobank; the raw material every dashboard, model, and analytics product depends on.

Where a Data Analytics Engineer turns governed data into insight, you make sure that data is worth trusting in the first place: engineering ingestion from source systems, modeling raw data into clean layers, catching bad data before it reaches anyone downstream, and provisioning the cloud infrastructure that keeps it all running reliably at scale.

Your role

The trajectory for a Medior Data Engineer at Xomnia is one of deliberate growth. While initially focused on designing ingestion pipelines, layered data models, and quality checks, you will gradually take on greater ownership. This progression is supported by mentorship from senior engineers and dedicated internal time to experiment with new tools and techniques.

Concretely, that means:

• Designing and maintaining robust data pipelines covering ingestion, transformation, and modeling, using tools such as Airflow, dbt, and PySpark.
• Engineering ingestion from diverse sources into cloud storage and warehouses, handling schema drift and late-arriving data along the way.
• Building and evolving layered data models that are reusable, well-documented, and performant for downstream analytics and AI use cases.
• Provisioning and managing cloud data infrastructure on Azure and/or AWS
• Operating and optimizing platforms like Databricks and Snowflake for reliability, performance, and cost efficiency.

What the journey looks like in practice

During your week, your time will be divided between our cozy Amsterdam HQ, home-office environments, and strategic visits to clients.

Our Raamstraat office, with its uneven floors and canal-side beanbags, serves as the heart of the team’s collaborative efforts, especially during Xomnia Fridays, when the team gathers to design together and resolve technical blockers over some good coffee. You’ll partner closely with data analytics engineers, analysts, and data scientists, exposing clean, well-modeled datasets they can build on with confidence.

What you bring to the table

You thrive in collaborative environments and possess the desire to turn messy, unreliable data into systems people can trust. Beyond technical skill, we are seeking individuals who combine solid engineering discipline with an eye for the bigger picture, and who are comfortable navigating the ambiguity inherent in production data systems. What’s expected of you:

• 3+ years of experience in a data engineering or comparable infrastructure/pipeline-focused role.
• A bachelor’s or master’s degree in Data Science, AI Computer Science, or related technical focus.
• Strong proficiency in SQL and Python, with hands‑on experience in distributed data processing or equivalent.
• Hands‑on experience with Azure, AWS or GCP
• Experience with at least one modern data platform or warehouse, such as Databricks or Snowflake.
• A solid understanding of data modeling principles, data validation and testing practices.
• Fluency in both English and Dutch, enabling effective partnership with a diverse range of local and international clients.
• Current eligibility to work in the Netherlands.

What's in it for you?

Xomnia provides more than just a salary; it provides a platform for professional and personal growth. We believe that the best results come from individuals who are empowered to manage their own growth while enjoying the ride together.

• A monthly salary between €4,300 – €5,400 (based on 40 hours), complemented by Stock Appreciation Rights to share in the company’s success.
• A dedicated €5,000 annual development budget, plus access to internal training through our organized “Learning Labs”
• 25 vacation days to fully recharge, with the possibility to take unpaid leave or work from abroad occasionally.
• Memorable company trips (from Berlin to Jordan and ski trips), regular boat rides through the Amsterdam canals, and a fully stocked bar and healthy lunch at the office, every day.
• A secondary benefits package including a solid pension scheme and flexible working options.

Become a Xomnian!

At Xomnia, we believe in using data and AI to tackle real-world challenges. With a team of passionate experts from 20+ nationalities and over 30% female representation, we celebrate diversity and welcome different perspectives.

Want to be part of this and take the next step in your career?