Coding
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Completed
Signed-in progress syncs across devices.
Easy
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Medium
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Hard
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Fundamentals
Get familiar with the syntax of common coding interview languages.
Python Warmups
Practice →NeetCode 75
Practice ↗Application & Integration Coding
APIs, customer data, webhooks, state, and production reliability.
Coding Question45 min · Python · Medium
CRM Billing Synchronizer
Build an accurate, efficient sync across two changing systems. The CRM is the source of truth.
API integrationPaginationIdempotencyIncremental sync
Coding Question40 min · Python · Medium
Webhook Order Processor
Project duplicate and out-of-order webhook deliveries into reliable order state.
WebhooksDeduplicationState machinesExactly-once effects
Agentic Coding
Agent loops, tool protocols, safety boundaries, and evidence-backed execution.
Agentic Question45 min · Python · Hard
Stock Research Agent
Repair a tool-using research agent, then make its execution loop cheaper and faster.
Tool useAgent loopsParallel callsProtocol correctness
Agentic Question45 min · Python · Hard🔒
Build an Agent Loop from Scratch
Implement the model–tool execution loop that turns an LLM into a bounded, debuggable agent.