C++ Software Engineer (Backend Services)

📍Germany (Chancenkarte – full work authorization)

📞(+86) 180-1627-9863|✉ hehehunanchina@live.com|🔗 github.com/hanjingo

Experienced C++ Software Developer with 8+ years of professional experience in backend architecture, game server, network frameworks, and distributed systems. Skilled in optimizing performance, reducing operational costs, and mentoring junior engineers. Seeking opportunities in innovative software and system engineering teams.

• Bachelor of Information and Computing Science

  Hunan University of Science and Engineering | 2012 – 2016

Senior C++ Software Developer

Guang Zhou DaAnGene | 2022 – 2025

• Managed project schedules to ensure on-time delivery of 100% milestones and mentored 5+ junior engineers.
• Developed Real-time device control applications and high-performance network frameworks using C++, OpenSSL, and ZeroMQ, increasing data processing throughput by 30%.

C++ Software Developer

Guang Zhou YouAi Network Technology | 2021 – 2022

• Built scalable backend servers for a virtual character game with Redis caching and Protobuf serialization, reducing average loading time by 25%.
• Contributed critical bug fixes to the open-source Protobuf C library (pbc), improving cross-platform stability for 500+ developers worldwide.

C++ Software Developer

Guang Zhou PaoZi Network Technology | 2020 – 2021

• Created a distributed storage system using C++, cutting storage costs by 30%.
• Improved data consistency through consensus algorithm optimization and reduced system downtime from 5% to less than 0.5% annually.

C++ Software Developer

Guang Zhou JiaYi Network Technology | 2019 - 2020

• Developed high-performance backend game servers with C++ and WebSocket, supporting 5,000 concurrent users with sub-100ms response time.
• Collaborated with cross-functional teams to design and implement real-time interaction features, boosting active user engagement by 18%.

C++ Software Developer

An Hui Yingnuowei Aluminum Co. Ltd | 2016 – 2018

• Designed backend servers with C++, storing design files, and reducing design time by 10%.
• Ensured system compatibility through rigorous testing.

• Programming: C++ (STL, Boost, Qt, ZeroMQ, OpenSSL), Lua, Golang, SQL.

• Networking & Systems: TCP, UDP, WebSocket, Distributed Systems, Linux, Windows.

• Databases: Redis, SQLite, MySQL.

• Tools: CMake, Vcpkg, Git, Docker, CI/CD, Markdown.

• Languages: English (IELTS B2), Mandarin (Native).

• Selected Open-Source Contributions:

  https://github.com/hanjingo/high-jump

  https://github.com/hanjingo/livermore

  https://github.com/hanjingo/casino