David 大卫 professional portrait

Hello, I'm

David 大卫

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Software engineer focused on AI, cybersecurity, full-stack development, and smart energy systems. I build practical digital products that connect solid engineering with real business and user needs.

软件工程师,专注于人工智能、网络安全、全栈开发与智慧能源系统,致力于打造兼顾工程质量与实际业务价值的数字产品。

Focus AI • Web • Energy
Strength Build + Communicate
Scope China to Global

01 — AboutAbout Me 关于我

I build software that is useful in the real world: products shaped by engineering discipline, practical constraints, and clear communication across cultures and teams.

I am a software engineer with a Master's in Software Engineering at USTC and hands-on experience across AI, cybersecurity, full-stack web development, and new energy solutions. My work sits at the intersection of engineering, product thinking, and international communication.

我是一名软件工程师,目前在中国科学技术大学攻读软件工程硕士,具备人工智能、网络安全、全栈开发与新能源解决方案的实践经验。我的工作融合了工程实现、产品思维与国际化沟通能力。

25+ Academic Honors
学术荣誉
9+ Years Freelancing
自由职业经验
5 Languages
语言能力
USTC Master's Degree
硕士学位

02 — SkillsSkills 技能

💻

Programming 编程

PythonJavaJavaScript C/C++SQLHTML/CSS
🤖

AI / ML 人工智能

Deep LearningSVMTransformer GPT / BERTGenerative AIRAG LangChainLangGraphAgents ChromaDBLangSmithRAGAS
🔒

Cybersecurity 网络安全

CSRFXSSSQL Injection IDORSSL/TLSPKI Penetration TestingPrompt InjectionScapy
🌐

Software Dev 软件开发

ReactNode.jsAngular REST APIsStreamlitFastAPI DockerGitLinux

Energy 能源

EV ChargingESSMicrogrids PV / SolarEdge ComputingCloud Platforms
🗣️

Languages 语言

English (Fluent)Amharic (Native)Afaan Oromo (Native) Chinese (HSK 4)French (B1)
Python· JavaScript· TypeScript· React· Next.js· Node.js· Docker· PostgreSQL· TensorFlow· PyTorch· Git· Linux· Angular· REST APIs· EV Charging· ESS· Microgrids· LangChain· LangGraph· RAG· ChromaDB· LangSmith· Streamlit· Scapy· Prompt Injection· Python· JavaScript· TypeScript· React· Next.js· Node.js· Docker· PostgreSQL· TensorFlow· PyTorch· Git· Linux· Angular· REST APIs· EV Charging· ESS· Microgrids· LangChain· LangGraph· RAG· ChromaDB· LangSmith· Streamlit· Scapy· Prompt Injection·

03 — ExperienceExperience 工作经验

Solution Engineer — New Energy & EV Charging

2025 – Present

解决方案工程师 — 新能源与电动汽车充电

  • Specialized in international pre-sales technical support for new energy and EV charging solutions
  • Responsible for overseas business trips, product introduction, on-site inspections, and customized solutions
  • Scope: on-grid/off-grid, AC/DC chargers, ESS, microgrids, PV, wind, VPP, edge computing, cloud platforms

Freelance Full-Stack Developer & Tutor

2017 – 2023

自由职业者:全栈开发、网络、教师

  • Developed and launched websites including ethiopianweb.net
  • Offered IT tutoring and consultation for clients and students

Teaching Assistant — Changzhou University

2020 – 2023

助教,国际学生办公室 — 常州大学

  • Facilitated translation and communication between foreign and Chinese teaching staff
  • Participated in international student recruitment and event planning

Social Media Advertising

2014 – Present

社交媒体广告推广

  • Promoted content via Facebook, Instagram, X, WeChat, Telegram, TikTok, and more

04 — ProjectsProjects 项目经历

⚡ Energy

Midroc Gold Hybrid Microgrid

Midroc Gold 离网混合微电网项目

Led system sizing, hybrid optimization, and feasibility analysis for a 7MW PV + 2MW BESS + diesel off-grid microgrid designed to improve reliability and reduce diesel use for mining operations.

⚡ Energy

Roha Health Center PV-ESS-EV Microgrid

Roha 医疗中心光伏储能与充电微电网

Designed an 818kWp rooftop PV + 261kWh BESS + EV charging microgrid for a healthcare facility, including backup strategy and grid-tie control logic for critical medical loads.

⚡ Energy

German Square Fast-Charging Station

German Square 商业快充站项目

Led layout design, power distribution sizing, and grid integration analysis for a 960kW commercial charging station with 8 dual-gun 120kW DC chargers serving 100+ EVs daily.

⚡ Energy

Midroc Hospital PV & BESS Backup

Midroc 医院光伏与储能备电项目

Designed rooftop PV layout, 10MWh BESS sizing, and backup power control logic to cut grid costs and strengthen resilience for critical hospital operations.

⚡ Energy

Customized PV-BESS Backup Solutions

银行与住宅定制化光储备电方案

Delivered tailored PV-BESS backup systems for bank branches and residential clients through load profiling, system sizing, proposal design, and reliability-focused planning.

🤖 AI/ML

SVM-Based Driver Drowsiness Detection

基于SVM的驾驶员疲劳检测

Built an ML pipeline for classifying drowsy vs. alert states from EEG brain waves. Compared SVM (98%), LSTM (93%), KNN (87%).

🤖 AI/ML

Deep Learning — NanoGPT

深度学习项目 — NanoGPT训练与分析

NanoGPT training & analysis, Transformer architecture study (GPT, BERT, ELMo).

🔒 Security

Web Security Testing

Web安全测试

CSRF, XSS, SQL Injection, SSL/TLS penetration testing labs in Docker-based SEED environments.

🌐 Web

Study Abroad Management Website

出国留学管理网站

Full-stack web application for managing study abroad processes.

🏆 Award

Maze Robot

迷宫机器人(获奖)

Autonomous maze-solving robot with sensor integration. Won 3rd Prize at World Vocational College Skills Competition.

🔗 Blockchain

Blockchain Implementation

区块链实现

Distributed systems and cryptographic security protocols.

🌐 Web

Responsive Web Design Projects

响应式网页设计项目

Modern responsive websites using contemporary frameworks and design patterns.

05 — CVsCVs 简历版本

💻 Software Track

Original CV

软件工程 / AI / 网络安全 / 全栈开发

This is the main software-focused CV for Software Engineer, AI Engineer, Cybersecurity, and Full-Stack roles.

Software Engineer AI Engineer Cybersecurity Full-Stack
⚡ Energy Track

David-CV

能源解决方案工程师 / 光储充 / 微电网

This CV is tailored for Energy Solution Engineer roles, highlighting PV-BESS systems, EV charging infrastructure, hybrid microgrids, and international technical solution delivery.

Energy Solution Engineer PV-BESS EV Charging Microgrids

06 — EducationEducation 教育背景

2023 – Present

MSc in Software Engineering

软件工程硕士

University of Science and Technology of China (USTC)
中国科学技术大学

2019 – 2023

BSc in Computer Science GPA: 4.7/5.0

计算机科学学士

Changzhou University 常州大学

2021

Global Summer School: Innovation for SDG

全球暑期学校:可持续发展目标创新

Tsinghua University 清华大学

2021

Innovation & Entrepreneurship in the Digital Economy

数字经济中的创新与创业

Tsinghua University 清华大学

2019

Chinese Language Studies

汉语学习

Qingdao University 青岛大学

2018

Computer Hardware & Software Maintenance

计算机软硬件维护

EBS Computer Training EBS计算机培训中心

07 — CertificationsCertifications 认证证书

🏛️
Blockchain & Digital Economy Entrepreneurship (Med AI)

Tsinghua University, 2021
清华大学,2021年

📋
Project Management Certification

项目管理认证 (2019 – Present)

🗣️
Language Proficiency

English · Amharic · Afaan Oromo · HSK 4 Chinese 汉语水平考试 · French B1 法语

Technical Certificates 技术认证

08 — HonorsHonors & Awards 荣誉奖项

🏅
China Scholarship Council (CSC) Award

国家留学基金委(CSC)奖学金

🥉
3rd Prize — World Vocational College Skills Competition (Maze Robot)

世界职业院校技能大赛三等奖(迷宫机器人)

Outstanding Student Leader — Changzhou University

常州大学杰出学生干部

💡
Innovation Recognition — Tsinghua University

清华大学创新表彰

📺
Featured on CGTN, CCTV1, China Daily

曾在CGTN、CCTV1、《中国日报》上报道

🎓
25+ Academic Honors and Certifications

获得25+项学术荣誉和认证

09 — ContactContact 联系方式