Blog & tutorials

Data engineering, cloud and AI — written by people who ship

Architecture decisions, tuning war stories, certification plans and interview prep. Written up properly, with the trade-offs left in.

Architecture

Cost model, workload fit, governance and team skills — how to choose without vendor marketing.

Coming soon 8 min read

Architecture

Feature parity, engine support, migration cost and the interop story after UniForm.

Coming soon 8 min read

PySpark

Salting, AQE skew join, broadcast, bucketing and repartitioning — with measured results.

Coming soon 8 min read

Certification

What the exam actually tests, which services dominate, and free practice resources.

Coming soon 8 min read

Generative AI

Golden sets, RAGAS metrics, LLM-as-judge pitfalls and CI regression gates.

Coming soon 8 min read

Orchestration

Cost, observability, dependency management and the migration traps in each direction.

Coming soon 8 min read

Careers

Grouped by level, with what the interviewer is really testing for in each one.

Coming soon 8 min read

Cost

Cluster policies, job compute, liquid clustering, Photon eligibility and system-table chargeback.

Coming soon 8 min read

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