· 原就读院校：武汉理工大学

· 原就读专业：高分子材料与工程

· GPA：87.86/百分制

· 标化成绩：雅思6.5

· 申请来源：启德重庆

· 背景分析：

Hao Zengyan Tel: +86 15927283713 ︱ Email: haozengyancq@163.com EDUCATION BACKGROUND Wuhan University of Technology Sep 2017 - Jun 2021 Bachelor of Engineering in Polymer Materials & Engineering GPA: 3.67/4︱Average Score: 87.86/100 Coursework: C Language Programming (97.1), Experiment of C Language Programming (100), Linear Algebra (93.1), Probability Theory & Mathematics Statistics (92.3), Advanced Mathematics Self-taught in a comprehensive range of computer science fundamentals, including but not limited to Data Structures and Algorithms, Operating Systems, Network Protocols, Database Principles and Distributed Systems Honors: Third-class School Scholarship, Tri-merit Student, Two NMG Composites Scholarships, Programming Ability Test (Basic Level), National Computer Rank Examination of Level 2 (Excellent) WORK EXPERIENCE UCloud Technology Co., Ltd. (Shanghai) Aug 2022 - Jun 2023 Development Engineer of the Object Storage R&D Department Designed and developed APIs for UCloud Object Storage Service (US3), including features such as multipart upload, mirror, lifecycle configuration, tagging and ACL Ensured seamless compatibility between US3 and AWS S3 ecosystems (Harbor, S3fs, Hadoop, etc.). Refactored the access-layer service by integrating US3 and AWS S3 protocols, leading to a performance improvement by over 50%, increasing the single access service throughput from 1.5GB/s to 3GB/s and reducing average latency from 50ms to 20ms. After refactoring, the US3 public cloud handled an average of 180 million requests per hour across all regions, with a single-region peak of 11k QPS Designed and developed a viable distributed tracing system based on Jaeger to provide data support for latency optimization Optimized the US3 CI/CD workflow, introduced comprehensive interface testing for US3 APIs using Testify, and actively maintained the US3 Golang SDK Wuhan Duolaima Information Technology Co., Ltd. Jul 2021 - Jun 2022 Linux C/C++ Software Engineer Responsible for performance testing of backend services using Perf, interface testing and unit testing of submodules using GoogleTest, and generating detailed test reports Built and maintained infrastructure frameworks, including thread pool, memory pool, network I/O library based on libevent, cache on Redis, log management and configuration reload Designed and implemented an internal file management system, complete a CLI tool that provides RESTful APIs. The back-end framework was based on the epoll multiplexing network model, multithreading technology, timing wheel algorithm and MySQL for user metadata storage Contributed to developing and maintaining of a campus network monitoring system, achieving keyword association using Levenshtein Distance. Introduced simple page search functionality using Simhash, TD-IDF and cosine similarity algorithms. Implemented two sets of cache modules through Redis and LRU STUDENT WORK Internet Information Technology Association Jan 2018 - Jan 2019 Vice Minister of Technology Department Provided technical support for association activities and conducted technical training for newcomers Worked as the lecturer to organize the 3rd and 4th session school training classes (Word, Excel, PowerPoint, PS, and PR) Organized activities and collaborations within and between the associations PROFESSIONAL SKILLS Languages: Mandarin (native), English (IELTS 6.5) Programming Languages: C++, Go, C, Python, Shell, Lua Cloud & Container: AWS, Hadoop, Docker, Harbor Databases: MySQL, MongoDB, Redis Tools: Git/GitHub, ChatGPT, Linux, Kibana/Elasticsearch, Vim, Wireshark, Postman, Notion