References

The explanations in this book are original summaries. Use these primary sources when you want specification-level depth or behavior changes across Python versions.

Role and book structure

• Supplied file: QRT - Quant Dev QP (HK).docx (the authority for this role pack).
• User-supplied Jump Trading Middle / Back Office Technology description (the authority for the Jump role pack).
• QRT Quantitative Development careers
• GitBook content configuration

Python

• Python language reference: data model
• Python tutorial: data structures
• Python typing specification
• dataclasses
• collections.abc
• contextlib
• asyncio
• concurrent.futures
• threading and the GIL note
• multiprocessing
• Python profiling
• timeit
• unittest
• decimal

Relational databases and Kafka

• PostgreSQL SQL language
• PostgreSQL transaction isolation
• PostgreSQL indexes
• PostgreSQL EXPLAIN
• Apache Kafka documentation
• Apache Kafka introduction
• Apache Kafka producer configuration

Study caveat

Python implementation details evolve. Treat the language reference and the documentation for the interpreter version used by the interview/team as final. Do not rely on incidental atomicity, object interning, or one CPython build's GIL behavior as a correctness contract.