Ashok Singamaneni
Principal data engineer at Nike with over a decade of experience across banking, healthcare, and retail; creator of the open-source projects Spark Expectations and BrickFlow focused on preventing bad data writes and improving pipeline reliability.
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Oct 7, 2025 • 20min
Block Bad Data Before the Write with Nike’s Ashok Singamaneni
Ashok Singamaneni, Principal Data Engineer at Nike and creator of Spark Expectations and BrickFlow, discusses preventing bad data writes and improving pipeline reliability. He explains treating ingestion and transformation like a software product. Topics include rule types for checks, running validations before final writes, decorator-based integration to avoid double scans, performance trade-offs, and cautious use of generative AI tools.
