Dave Callaghan (2CData)

I bring 20 yrs of dev experience, usually in Java and Scala I work extensively with Hadoop, Cassandra, Spark, MongoDB and Spark.

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Devpost Anniversary Level 11

Earned for each year after joining Devpost

Achieved April 30, 2026
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First in-person hackathon

Earned by submitting an eligible project to an in-person hackathon

Achieved May 12, 2020
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X Hackathons Level 2

Earned by submitting separate eligible projects to separate hackathons

Achieved May 12, 2020
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Welcome to Devpost

Earned by joining Devpost

Achieved May 12, 2020