smartlyio · Helsinki, Uusimaa, Finland
Skills: Python, SQL, Docker
We are looking for a Senior Data Engineer to join the Data Platform at Smartly! Smartly is an AI-powered advertising platform uniting creative and media workflows. We help brands create, manage, optimise, and understand digital advertising across major media platforms. The Data Platform team builds the data foundations that support product development, product analytics, and business decisions. In this role, you will build and operate the pipelines that bring data from Smartly’s product and business systems into BigQuery, then shape it into dependable datasets used across the company. Our production data stack includes Google Cloud, BigQuery, dbt, Airflow and Python. You will work across ingestion, storage, orchestration, modelling, and operations. Strong judgement about data storage matters: how data is structured, retained, and served affects reliability, usability, performance, and cost. You will work closely with Product Analytics, BI, product engineering, and data-platform engineers. Together, we make data easier to discover, trust, and use. What you will do Build and operate batch and incremental ingestion pipelines in Google Cloud to Smartly Data Platform. Develop Airflow workflows using Python with best orchestration practices, including dag dependencies, retries, backfills, alerting, and recovery. Build and maintain dbt transformations, from source-aligned staging models to curated warehouse datasets. Add tests and documentation, and support version control and deployment checks. Design practical storage patterns across Cloud Storage and BigQuery, considering formats, data grain, partitioning, clustering, retention, lifecycle, and access controls. Improve data warehouse performance and cost through ongoing query and storage optimization. Document data flows and operational practices so pipelines are understandable, supportable, and safe to extend. Work with analytics, product engineering, and platform colleagues to clarify requirements and deliver dependabl…
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