Software Data Engineer

About Us:

Simplaex is the company behind the world’s most advanced Artificial Intelligence-powered targeting technology. The platform provides solutions for the programmatic advertising ecosystem to reduce complexity, create a new kind of transparency, and to boost performance across the full bandwidth of the value chain. Simplaex processes tens of Terra Bytes a day, generates unique insights through machine learning and allows for sub-second querying in a high-throughput and low-latency environment.

About You:

We are looking for a kick-ass Software Data Engineer, who cares about quality code. She or he is passionate to build an innovative AI solution for programmatic publishers with cutting edge technologies in a large-scale distributed system which includes (real!) big data and high throughput environments.


  • Create a generic environment for Simplaex’s AI audience platform.

  • Build a big data solution to manage and process hundreds of Terabytes a day.

  • Construct a framework which allows access to dynamic multi-dimensional data-sets in a sub-second.

  • Work closely with data scientists and deliver outputs at scale.


  • Minimum of 6 years of experience with a deep understanding of Core Java and/or Scala, especially in Concurrency and Multi-threaded programming (native, Actor model, Akka).

  • High proficiency with big data solutions (Hadoop, Spark, parquet) and large messaging infrastructures (Kafka, RabbitMQ).

  • Strong know-how of NOSQL solutions (Casandra, DynamoDB, elastic, druid, Impala, presto), Java server development and cloud services (Amazon EC2).

  • Knowledge of SQL databases and capable of comfortably crafting queries.

  • Smart interdisciplinary team-player who appreciates a dynamic startup culture.

What we offer you:

At Simplaex we believe in ownership, productivity, mutual respect and freedom to do the things we need to do. Each team member has a large degree of autonomy to accomplish his or her tasks and can rely on others for help, guidance and support. Our team enjoys a highly professional atmosphere and an environment where a good laugh is always welcome.

  • Bright and stylish office in the heart of Berlin.

  • Diverse and international team with over 15 nationalities.

  • Base salary corresponding with experience and responsibilities.

  • Stock options program.

  • 27 days of holiday.

  • Free fruits, snacks, drinks and strong coffee.

To apply for this position, please send your CV and Cover Letter to

Simplaex GmbH
Erna-Berger-Straße 1
D-10117 Berlin, Germany
+49 (0) 30 9225 12775

© Simplaex GmbH 2019