solid_robin_7445
Arbiter
Top 0.3%
Joined Sep 2026
SQL
Common Table Expressions
Window Frames
Correlated Subquery
Python
Context Managers
Stack & Queue
String Formatting
Spark
Spark Execution Model
Transformation Chaining
Column Expressions
Data Modeling
Indexing
Constraints
Metric Additivity
Pipeline Architecture
DAG Orchestration
Solved
Data Modeling0
Pipeline Architecture0
Milestones
Top 100
Top 7% SQL
10 solved
First interview
3,238 runs in the past 26 weeksActive days: 16 · Max streak: 4
MayJunJulAugSepOct
Recent solves
Everything Said Twice
Python · easy
Carrying Forward
Python · medium
Alert Hotspots by Service and Severity
SQL · easy
Clean Cache CDN Edges
SQL · easy
Clean Averages
SQL · easy
Alert Count by Severity Tier
SQL · medium
Actually Available
SQL · easy
Pipeline Anatomy: Beginner, The Four Roles in Any Pipeline Challenge 2
Pipeline Architecture · easy · lesson
Pipeline Anatomy: Beginner, Reading a Pipeline Left to Right Challenge 1
Pipeline Architecture · easy · lesson
Pipeline Anatomy: Beginner, The Four Roles in Any Pipeline Challenge 1
Pipeline Architecture · easy · lesson