Freelance Software Engineer - Data

Darwin Recruitment GmbH; Berlin; Remote; EUR 60.000 - 90.000; Vollzeit

Zusammenfassung

A leading company in Berlin seeks a Freelance Software Engineer to design scalable data models and pipelines. The role involves building real-time and batch data pipelines, ensuring quality, and collaborating with teams to deliver impactful data solutions. The position offers remote work and is suited for professionals with strong Java and Spark skills.

Qualifikationen

• Minimum 3 years experience in similar projects.
• Strong Java and Spark SQL skills required.
• Experience with Kafka and understanding of OLAP engines.

Aufgaben

• Build and maintain real-time and batch data pipelines (Kafka, Spark).
• Model data for fast analytical queries.
• Ensure data quality, performance, and scalability.

Kenntnisse

Java

Spark SQL

Kafka

Data modeling

OLAP engines

Jobbeschreibung

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Freelance Software Engineer - Data, Berlin

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Location:

Berlin, Germany

Job Category:

Information Technology

EU work permit required:

Yes

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Job Reference:

JN -062025-105032_1749720522

Job Views:

7

Posted:

12.06.2025

Expiry Date:

27.07.2025

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Job Description:

We're looking for a Freelance Software Engineer on behalf of our client, to help design and build scalable data models and pipelines. This will support analytical queries for internal applications used by multiple departments.

Key focus areas:

* Build and maintain real-time and batch data pipelines (Kafka, Spark)
* Model data for fast analytical queries
* Ensure data quality, performance, and scalability
* Data architecture and data modeling
* Collaborate with cross-functional teams to deliver high-impact data solutions

Requirements:

* Strong Java and Spark SQL skills
* Experience with Kafka and Spark
* Understanding of OLAP engines and data modeling
* Familiarity with columnar databases is a plus
* A minimum of 3 years experience working in similar projects

Location: Germany (Remote)
Start: July 2025 (earliest June)
Initial Contract: 6 Months

Please note that due to the nature of this projects, freelancers should be readily based in Germany. Possibility to be onsite in Berlin is preferred.

Darwin Recruitment is acting as an Employment Business in relation to this vacancy.