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5 years of Python experience. Familiar with most syntax, logic, modules. Skilled in backend and application development, data analysis, automation, and model training. Deep understanding of OOP and Pythonic thinking.

10 years of C++ study. Award-winning NOIP competitor. Proficient in classical algorithms: DP, recursion, greedy, etc. Skilled in algorithm problem-solving and performance optimization.

Familiar with cybersecurity principles. Experienced in authorized pen-testing and emergency response. Proficient in web, middleware, database, system, and mobile security. Have the ability to design the architecture of huge networking system and secure network structures.

Experienced with PHP, JavaScript, HTML, CSS. Can use Bootstrap 5 for responsive UI and simple animation. Handles basic frontend tasks well.

Experienced with both relational and NoSQL databases: setup, config, deployment. Can design DB structures and use Excel functions, pandas for cleaning, visualizing, and analyzing data.

Solid foundation in math (linear algebra, probability, calculus). Understands and derives basic ML algorithms. Used deep learning frameworks and studied computer vision basics.

Including Linux, Android/iOS development, Java, DevOps, etc. Touched, not mastered.

IELTS 8.0, Gaokao 145+, fluent in reading, writing, listening, speaking. Strong language learning skills, capable of basic communication with native speakers.

Honestly just tried it for fun. Lucky, not much skill. Just here to fill the grid.