Hire the Best Automation Engineers
in China

Most teams hire me when manual workflows start breaking under scale — too many tools, too much copy-paste, data that won't stay in sync. I build full-stack SaaS platforms and AI automation that make those problems go away. My recent work spans the full range. For a B2B procurement CRM, I shipped a unified inbox that merges Gmail, Slack, and WhatsApp into one threaded view, plus a Human-in-the-Loop AI quoting engine that turns messy supplier negotiations into structured, versioned PDFs. I also built a real-time IoT operations platform for an EV battery-swap network — a Next.js / React command center over Java Spring Boot microservices, tracking stations, batteries, and swap orders live at high concurrency. On the AI and automation side, I build agent pipelines and n8n workflows that parse documents, orchestrate OpenAI calls, and push results into Google Workspace, Slack, and Twilio. One example: an AI agent that reads a tender PDF, scrapes Google Maps to discover matching vendors, enriches their contact data, and launches a targeted outreach campaign — turning days of manual sourcing into minutes. The foundation comes from Alibaba and Vipshop (NYSE: VIPS), where I built Java/Spring Boot systems handling 100k+ DAU at 99.9% uptime and once cut a procurement batch process from 24+ hours to under 3. I build production-grade from day one — not something you'll have to rewrite in six months. Stack: Java/Spring Boot, Python, Node.js, Next.js, React, PostgreSQL, OpenAI/Claude APIs, RAG, n8n, AWS, Docker. I translate business goals into technical roadmaps, own delivery end to end, and keep you updated daily. If you're building something that has to work reliably at scale, let's talk.

Anyone can scrape a page. The hard part — and what I do — is turning messy market data into something you can actually trade on: clean pipelines, point-in-time-correct databases, and bots that survive running 24/7. I build trading-adjacent data systems end to end: - Market data & pipelines — login-gated and JS-heavy sources, multi-source collection with failure isolation, normalized into Postgres/DuckDB - Point-in-time correctness — bitemporal databases with as-of replay and zero look-ahead leakage, so your backtests aren't lying to you - Signals & automation — rules-based market scanners, exchange API integration, Lightning/crypto automation, crash-resilient 24/7 deployment Recent work (real, with code & tests): - A bitemporal horse-racing trading database — Betfair historical pricing (600K+ price rows) + 280K+ race-card index, as-of replay validated leak-free, 176 passing tests (PostgreSQL/SQLAlchemy) - A Bitcoin (RoboSats) selling-automation system — 18-state order lifecycle, Lightning payments via Core Lightning, Tor routing, Docker API - A prediction-market arbitrage radar — scans 5,000+ live markets per cycle for YES/NO mispricing, DuckDB snapshots, 17 passing tests I care about correctness — bad data quietly ruins a trading system, so I build in reconciliation, idempotency and tests. Clear communication in English and Chinese. I'll tell you upfront if an edge isn't realistic rather than overpromising.

I’m a professional PCB design engineer with extensive experience in developing high-speed digital, RF, and embedded system hardware. Over the years, I’ve successfully designed and delivered dozens of production-ready PCBs across various industries — from industrial automation and telecommunications to IoT, radar, and medical electronics. My work covers the entire product development cycle, including schematic design, PCB layout, signal & power integrity (SI/PI) analysis, EMI/EMC optimization, and DFM validation for mass production. I focus on precision, performance, and reliability, ensuring that every design meets the client’s technical and manufacturing requirements. My Expertise PCB Design: Multilayer, high-speed, RF/microwave, and mixed-signal boards High-Speed Interfaces: DDR, USB, HDMI, Ethernet, LVDS, PCIe EDA Tools: Altium Designer/Kicad/easyEDA/Eagle / OrCAD / Cadence Allegro /PADS Simulation Tools: Proteus/Multisim/CST / HFSS / ADS / LTspice / HyperLynx Hardware Design: Analog and digital circuits, power management, embedded boards Manufacturing Optimization: DFM, DFT, impedance control, EMC compliance Collaboration: Strong coordination with firmware, mechanical, and production teams What I Can Deliver ✅ Complete circuit & PCB design (Prototype to Mass Production) ✅ Enclosure design for PCB and 3D printing ✅ High-speed & RF PCB layout with impedance matching and SI/PI analysis ✅ EMI/EMC issue troubleshooting and optimization ✅ Design improvement and cost reduction consulting ✅ Antenna and RF front-end layout design ✅ Documentation for manufacturing and assembly

9+ Years of QA Mastery | Enterprise-Scale Automation | AI-Driven Efficiency Are you looking for a seasoned QA leader who has ensured quality for global giants like Tesla? I am a Senior QA Automation Engineer with a proven track record of building high-performance testing ecosystems for complex, high-traffic platforms. My experience spans from Manufacturing Execution Systems (MES) to Global Billing Infrastructure, giving me a unique edge in handling intricate business logic and large-scale data integrations. 🚀 Why I Am a Top 1% Candidate: ● Ex-Tesla Expertise: 4+ years of ensuring zero-fault launches for global billing systems. I thrive in fast-paced, high-stakes environments with frequent release cycles. ● Multi-Stack Proficiency: Whether your project is in Python (Playwright/Pytest-BDD) or Java (Selenium/TestNG/Cucumber), I design scalable frameworks from scratch. ● Full-Stack Technical Depth: Beyond just UI/API testing, I am proficient in MySQL for data validation, Splunk for log analysis, and testing event-driven architectures involving Kafka and Redis. ● CI/CD Specialist: Expert in automating pipelines using GitLab-CI, GitHub Actions, and Jenkins. 🛠 My Tech Toolkit: ● Automation: Playwright, Selenium, Appium, Cucumber, TestNG. ● Languages: Java (Expert), Python (Expert). ● Backend & Infrastructure: Kafka, Redis, MySQL, Postman, JMeter. ● Observability & Tools: Splunk, Jira, Confluence, Git/GitHub/GitLab. ● AI & Future-Proofing: Actively integrating AI coding assistants to accelerate script generation and data mocking. Key Achievements: ● Built a BDD-based Playwright framework at BeiGene, achieving 80% coverage for core modules within months. ● At Tesla, validated billing platforms interacting with 9+ upstream services, ensuring 100% data consistency across global markets. ● Developed smart data-scraping utilities that boosted testing efficiency by 30%+. I am a self-directed, remote-native professional who values transparent communication and high ownership. I don't just find bugs; I partner with your engineering team to build a culture of quality. Ready to scale your quality assurance? Let’s connect and discuss your mission-critical projects.

If problem is unclear, messy, difficult to tackle, or requires real thinking — that’s where I stand out👋. I build production-ready systems using: • Python automation & scraping • n8n / workflow automation • Real-time data processing • AI / NLP integrations • Browser automation & workflow systems • Web applications & network infrastructure systems Not just prototypes or demos. What makes me different: - I don’t deliver partial solutions — I make sure the system actually works in your real environment - I think in terms of outcomes, not just code - I stay until the problem is solved Typical things I can help with: - Automating repetitive workflows (saving hours of manual work) - Extracting and structuring data from complex sources - Building AI-powered tools integrated into websites or processes My only goal — 𝐒𝐨𝐥𝐯𝐞 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐛𝐥𝐞𝐦 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐥𝐲.

A decade of expertise in transforming complex automation concepts into high-performance, mass-produced machinery. With 10 years of experience in the Automation and Precision Laser industries, I specialize in designing full-scale production lines that balance extreme precision with industrial reliability. Key Achievement: I led the mechanical design of a Laser Coating Removal system that achieved $15 Million (110M RMB) in sales, proving my ability to design equipment that survives the most rigorous market demands. What I bring to your project: Design for Manufacturing (DFM): I don't just draw; I ensure every part is optimized for CNC, sheet metal, or injection molding to minimize your fabrication costs. Complex System Integration: Expert in SolidWorks top-down design for assemblies with 800+ components, integrating SMC/Festo pneumatics and Keyence/Omron sensors. Process Mastery: Deep knowledge of Lithium battery assembly and precision laser cutting/drilling. Proven Reliability: 10 technical patents and a history of leading projects from initial 3D layout to on-site commissioning. Let’s build something robust, efficient, and ready for production.