Fivetran vs. Apache SeaTunnel: Managed ELT or Open-Source Control?
In data engineering, Fivetran is often seen as the go-to choice for simplicity and low operational overhead, while open-source projects such as Apache SeaTunnel offer greater flexibility and more control over the underlying data infrastructure. So, should a data team choose Managed ELT, or build and operate its own data integration platform? This has long been a point of debate among data teams.
A recent discussion in Reddit’s r/dataengineering community provides a representative example. A data engineer was scaling up data operations after primarily relying on Cloud Run Jobs and dbt Core. As data pipelines gradually became a core part of the business infrastructure, the team began evaluating two options: Fivetran + dbt, or an open-source stack + dbt Core. Their concern was not simply which tool to use, but whether Fivetran’s cost was justified and, beyond its large library of pre-built connectors, what Managed ELT actually delivers for an...
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