Data Enginner

Your mission

We are looking for a Data Engineer who enjoys building reliable data pipelines. You will help design and operate scalable ELT processes that power analytics, reporting, and core product features.

You are comfortable working with Python, SQL and AWS, understand modern data architecture patterns, and care about data quality, performance, and maintainability.

Your responsibilities

• Design, build and maintain scalable ELT pipelines.

• Implement and operate data workflows using AWS (Lambda, Step Functions, S3, Batch, etc.).

• Contribute to the evolution of our Data Platform architecture (Medallion architecture).

• Ensure data quality, consistency, and reliability across pipelines.

• Optimize data transformations for performance and cost efficiency.

• Collaborate with Backend and Frontend Engineers and Product to define data requirements.

• Monitor pipelines, troubleshoot issues and improve observability.

• Document data models, transformations and architecture decisions.

Your skills

• Strong Python skills for data processing.

• Experience building ETL/ELT pipelines in production environments.

• Solid experience with AWS (especially Lambda, Step Functions, S3).

• Understanding of Medallion Architecture.

• Strong SQL skills and experience with dimensional data modeling.

• Experience working with structured and semi-structured data (JSON, CSV, Parquet, APIs).

• Understanding of data validation and data quality practices.

• Experience with Git and CI/CD.

Nice to have

• Experience with columnar databases (e.g. ClickHouse, Redshift, BigQuery).

• Familiarity with infrastructure-as-code (e.g. Terraform).

• Experience with Docker.

You can expect:

• Being part of a highly motivated international team.

• High ownership and responsibility for your domain.

• A modern data stack and room to shape architecture decisions.

• A workplace in the heart of Vienna or remote options with quarterly office weeks in Vienna Helu.io.

Why us?

Location: Vienna, (remote option available with quarterly office visits for one week in Vienna)

About us: We were recently rewarded for being the most interesting Austrian scale-up. We raised €15m overall and offer a fun, friendly, young, dynamic team, a great, interesting, and challenging product, and the opportunity to work with the newest technologies.

Our values:  Healthy team spirit, a growth-oriented environment, and a culture of performance. We stand for trust, respect, a welcoming atmosphere, fairness, an active feedback culture, room for failure, collaboration and a strong sense of team appreciation.

Helu empowers business leaders to make the right strategic decisions in Financial Management and Planning.

Our mission is to help companies plan, forecast and analyze all their data in one place.

Our headquarters are based in Vienna, Austria. We’re a team of experienced, international professionals who are looking for talented and ambitious people open to build an exciting global company with us.

Helu is founded by a successful serial entrepreneur and backed by numerous unicorn founders and renowned investors ( Wefox, Atlantic Labs, Commerzventures)