Lakehouse & AI Data Platform Engineer

Goldman Sachs; Warszawa; Hybrid; PLN 240,000 - 320,000; Full time

Job summary

Goldman Sachs in Warsaw, Poland, is hiring a Data Engineer for the Lakehouse and AI Data Platform. You will design, build, test and support data pipelines and curated datasets on the firm’s modern data platform, across ingestion, transformation, modelling and quality.

We are looking for engineers who write code in Python or Java, work with SQL and distributed data processing, and collaborate with data consumers and platform teams to deliver reliable data products for analytics and AI use cases.

Qualifications

• Bachelor’s or master’s degree in a relevant discipline, or equivalent practical experience, with evidence of strong quantitative skills or data engineering expertise.
• Strong hands-on programming experience in Python or Java.
• Good working knowledge of SQL, including troubleshooting, optimisation and data analysis.
• Ability to learn new tools, internal platforms and delivery workflows quickly.
• Familiarity with software engineering fundamentals, including version control, testing, release discipline and CI/CD practices.

Responsibilities

• Build, enhance and support batch and streaming data pipelines on the Lakehouse and AI data platform.
• Refactor or modernise existing data flows where needed to improve reliability, performance and maintainability.
• Ensure data pipelines are production-ready, well tested and operationally supportable.
• Develop raw, refined and curated datasets that support analytics, reporting and AI use cases.
• Apply sound data modelling principles to represent business entities, relationships and historical change accurately.
• Work with consumers to shape data products that are usable, well documented and aligned to business needs.
• Implement controls to validate completeness, accuracy and consistency of data across pipelines and datasets.

Skills

Python

Java

SQL

Apache Spark

Kafka

JSON

Avro

Parquet

CI/CD

Version control

Testing

Education

Bachelor’s or Master’s degree in a relevant discipline

Tools

Snowflake

Apache Iceberg

Databricks

Hadoop ecosystem

Sybase IQ

Kubernetes

CI/CD tooling

Job description

Goldman Sachs in Warsaw, Poland, is hiring a Data Engineer for the Lakehouse and AI Data Platform. You will design, build, test and support data pipelines and curated datasets on the firm’s modern data platform, across ingestion, transformation, modelling and quality.

We are looking for engineers who write code in Python or Java, work with SQL and distributed data processing, and collaborate with data consumers and platform teams to deliver reliable data products for analytics and AI use cases.