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Saran Teja Mallela

Archives

All the articles I've archived.

2026 5
July 2
  • The Third Verdict

    I built greenlight, a fail-closed prior authorization agent, in seven hours at my first hackathon. This is why the most important output an agent can produce is INSUFFICIENT.

  • What a Data Engineer Misses About Transformers (Until You Build One)

    I move data through pipelines for a living. Then I built the transformer stack from scratch, from autograd to attention. Five places my instincts pointed the wrong way, and three bugs that never crashed.

June 2
May 1
  • Right Diagnosis, Wrong Branch

    My first Apache Airflow PR fixed a silent data-loss bug in the Snowflake provider. It was closed without merging. The analysis was correct. Everything around the analysis was not.