Job
In this role, you will develop scalable ELT pipelines, implement data workflows in AWS, ensure data quality, and optimize transformations while collaborating closely with other engineers.
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Your role in the team
- 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.
- 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 architectural decisions.
Our expectations of you
Qualifications
- Strong Python skills for data processing (ideally familiar with Polars or PySpark).
- Understanding of Medallion Architecture.
- Understanding of data validation and data quality practices.
- Familiarity with infrastructure as code (e.g., Terraform) is a plus.
Experience
- Experience building ETL/ELT pipelines in production environments.
- Solid experience with cloud services—ideally AWS.
- Strong SQL skills and experience with dimensional data modeling.
- Experience working with structured and semi-structured data (JSON, CSV, Parquet, APIs).
- Experience with Git and CI/CD.
- Experience with columnar databases (e.g., ClickHouse, Redshift, BigQuery) is a plus.
- Experience with Docker is a plus.
What we offer
- 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.
Topics you will work on
Job locations
About your employer
Helu.io GmbH, based in Vienna, offers an innovative platform that enables companies to upload, analyze, plan, and consolidate financial information. Its focus is on supporting growing firms and finance teams in the field of strategic financial management.
- Startup
- Hybrid, Onsite
- Banking, Finance, Insurance
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