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Rating is 4.9 out of 5.
4.9/5
based on 263 client reviews
  • $35 hourly
    • 5.0/5
    • (10 jobs)
    Experienced Data Engineer on Upwork I specialize in data analysis (Pandas, NumPy, Matplotlib, SQL), data scraping (web pages, PDF, JSON), ETL pipeline creation, API development, and data lakes on Azure and AWS. Data Analysis Expertise: With extensive experience in data analysis using Pandas, NumPy, Matplotlib, and SQL, I possess expert-level skills in Pandas that enable me to help clients analyze existing data in CSV, Excel, and JSON formats, or from relational databases. I excel at uncovering hidden insights and visualizing results in an easily understandable way. Data Scraping and ETL Proficiency: I have extensive experience in data scraping and ETL (Extraction, Transformation, Loading) processes. I employ various techniques and tools to automate tedious daily tasks and extract valuable data from web pages, XML, PDFs, JSON objects, or API endpoints (e.g., GitHub, Slack). I can integrate the scraped data into user-friendly formats such as CSV, Excel, or relational databases. Data Lake and Cloud Tools Experience: I have experience working with data lakes on both Azure and AWS, using tools like Azure Synapse, Azure Data Lake Storage, Azure Data Factory (ADF), Amazon S3, Amazon Lake Formation, and AWS Glue to enable efficient data storage, management, and analysis at scale. API Development Skills: I am experienced in API development using Python frameworks like Flask and FastAPI, as well as DevOps-related tools such as Docker and Kubernetes (K8S). I can provide end-to-end services from development to deployment. Proficiency in Jupyter Notebook and PyScript: When a stand-alone desktop application is needed, my experience with Jupyter Notebook and PyScript enables me to create applications quickly and efficiently. Why Choose Me Over Other Freelancers: 1. Client First: I always prioritize my clients and deliver exceptional value. 2. High Quality at a Lower Price: I provide high-quality deliverables at competitive rates. 3. Friendliness: My goal is 100% client satisfaction. I strive to build long-term relationships and make friends with every client. The below Client Review is one of the many reviews provided by my client, which demonstrates the high quality of work I have delivered and the skill level I have. You can always expect the same when you work with me. "Lei is a very professional Freelancer. I love people who show initiative like him. The work is outstandingly fast delivered and the same as if code revisions are needed. While Lei's work was 100% according to our specification we faced a few issues with the code internally which was not considered before giving him instructions and test data. Although our fault he fixed the code in a blaze. He also charges very honestly the time it actually takes to code. A big thumbs up!"
    Featured Skill Python
    Python Asyncio
    API Development
    Beautiful Soup
    CSV
    Selenium
    Data Visualization
    Regex Writing
    Data Mining
    Data Scraping
    Flask
    Data Science
    pandas
    Machine Learning
    SQL
  • $35 hourly
    • 5.0/5
    • (50 jobs)
    About Us: Your Trusted IT Consulting & AI Solutions Agency At zczy318.com, we are a dedicated IT consulting agency specializing in delivering innovative AI-driven solutions. With a proven track record of serving over 100 clients worldwide, our mission is to empower businesses of all sizes to harness the transformative power of artificial intelligence and advanced IT systems. Our Expertise We design and build custom AI agents and automation systems using a diverse range of technologies, including but not limited to: n8n, Agno, Composio, PydanticAI Azure AI Foundry, Gemini, Claude, Deepseek Retrieval-Augmented Generation (RAG) systems Model Control Protocol (MCP) Large Language Model (LLM) training and deployment Our team’s deep technical knowledge ensures that we deliver robust, scalable, and cutting-edge solutions tailored to your unique business needs. Comprehensive IT Services Beyond AI, we offer end-to-end IT consulting services, including: System Administration & Network Configuration DevOps Practices & Cloud Computing (AWS, Azure, GCP, Alibaba Cloud) Software Development (Java, Golang, Python, JavaScript) Server & Mail System Management Certifications & Credentials Our consultants hold industry-recognized certifications: - Certified SAFe® 5 DevOps Practitioner - Microsoft Certified: Azure Fundamentals & Professional - HashiCorp Certified: Terraform Associate - AWS Certified Solutions Architect – Professional - Certified Kubernetes Administrator (CKA) Why Choose Us? Proven Experience: 15+ years across automotive, telecom, software, e-commerce, and IT consulting. Customer-First Approach: We prioritize understanding your goals to deliver solutions that exceed expectations. Global Reach: Successfully served clients from large enterprises to startups and entrepreneurs. Thought Leadership: Our founder is a top-rated Udemy instructor (search “kobe73er Udemy”) and a recognized mentor on TestGorilla. Let’s Transform Your Business with AI Whether you’re looking to automate processes, leverage AI for new opportunities, or optimize your IT infrastructure, our agency is your trusted partner. We are committed to delivering personalized, innovative, and scalable solutions that drive real business value. Ready to unlock the full potential of AI and IT for your business? Contact us today at zczy318.com. If you’d like this tailored for a specific platform (website, LinkedIn, brochure, etc.), let me know!
    Featured Skill Python
    Golang
    Google Cloud Platform
    Kubernetes
    Continuous Integration
    Spring Boot
    DevOps
    Alibaba Cloud
    Java
    Infrastructure as Code
    Amazon Web Services
    Microsoft Azure
    Terraform
    Node.js
    React
  • $35 hourly
    • 5.0/5
    • (15 jobs)
    I am experienced in Linux/Windows C/C++ development, both embedded and desktop software/driver, qt qml for application UI, python for automation and machine learning. Also has other development experiences as C#/Java/Pick Basic.
    Featured Skill Python
    JavaScript
    Firmware
    Qt Framework
    Algorithm Development
    Software Architecture & Design
    Embedded Linux
    C#
    Mathematics
    C
  • $38 hourly
    • 5.0/5
    • (3 jobs)
    Hello! I am a Software Architect with over 9 years⭐ of experience, specializing in Web3, AI, and Data Science. 🚀My work spans blockchain development, smart contracts, AI-driven applications, and advanced data analysis.🚀 # Web3 / Blockchain Projects * Developed smart contracts on Ethereum (Solidity) and EOS (C++) * Managed cryptocurrency exchange spot deposits and withdrawals * Built an NFT marketplace * Built an on-chain data analysis platform * Created blockchain node plugins for extended functionality # AI Agent Projects * Built an AI-powered solution that generates a daily Web3 wallet portfolio summary and sends updates via a Telegram bot # Data Science Projects * Developed a recommender system using various machine learning algorithms * Implemented data visualization with animations to present insights * Applied on-chain data analysis to uncover actionable intelligence # Technical Specialties * Languages: Rust, C/C++, Golang, Python, JavaScript/TypeScript * Databases: PostgreSQL, MySQL, MongoDB, ClickHouse, InfluxDB * AI & ML Tools: LangChain, LangGraph, LLM, Model Context Protocol (MCP) * Data Processing & Visualization: Spark, Matplotlib, Seaborn * Front-End: React, Next.JS * Cloud & Hosting: Firebase, Supabase, Vercel, AWS, Cloudflare * Containerization & Orchestration: Docker, Kubernetes (k8s) * Chatbots: Telegram Bot 💡 Why Work With Me? ✔️ Extensive Expertise in Web3 & AI Bridging the gap between Web3, AI, and ML to deliver innovative solutions that drive success. ✔️ Scalable & Future-Proof Solutions Tailoring the perfect strategy to meet your product and business needs, ensuring long-term growth and sustainability. ✔️ 100% Job Success Committed to delivering high-quality AI and data solutions that exceed expectations. 📩 Let’s collaborate and turn data into powerful insights!
    Featured Skill Python
    Web Service
    Machine Learning
    Solidity
    Rust
    Product Management
    Blockchain
    Web3
    Data Science
    AI Development
    C++
    Golang
    React
  • $50 hourly
    • 5.0/5
    • (20 jobs)
    I specialize in Large Language Models (LLMs), Generative AI, and Prompt Engineering, leveraging state-of-the-art tools like DeepSeek-R1, DeepSeek-V3, ChatGPT, Llama, and Mistral to design cutting-edge AI applications for businesses and researchers. My expertise in Prompt Engineering includes crafting advanced workflows for AI-powered automation, building custom LLM-based chatbots, and fine-tuning model behaviors to align with specific business and academic needs. Whether it’s creating NL2SQL solutions, optimizing data pipelines with LangChain, or implementing intelligent LLM agents, I bring AI-driven innovation to life, enabling smarter decision-making and process automation. ✅ Services Offered AI & LLM Solutions: • LLM Fine-Tuning: Tailoring models like DeepSeek-R1, DeepSeek-V3, ChatGPT, Llama, and Mistral for domain-specific tasks. • Text-to-SQL (NL2SQL): Automating SQL query generation from natural language for seamless data analysis. • AI Application Development: Creating scalable AI tools with frameworks such as LangChain, n8n, and Streamlit. • Multimodal AI Integration: Building solutions that combine text, images, and other data using tools like LlamaIndex and LM Studio. • LLM Agents & Chatbots: Designing intelligent, task-specific agents to streamline workflows and improve customer interactions. Research & Mentorship: • Research Analysis & Writing: Providing expert guidance in AI research and co-authoring academic papers. • Corresponding Authorship: Managing research submissions, peer reviews, and publication processes. • Mentorship: Supporting professionals and students in mastering AI technologies, LLMs, and Generative AI applications. Business-Focused AI Services: • Data-Driven Decision Tools: Building AI systems to empower smarter business decisions. • Predictive Analytics: Developing models for market predictions, including financial forecasting and customer behavior analysis. • Cybersecurity Solutions: Strengthening business security with anomaly detection and proactive monitoring systems. 💡 What You Gain • Improved Decision-Making: Leverage precise AI insights tailored to your needs. • Efficient Processes: Streamline workflows with AI-driven automation like NL2SQL or chatbot integrations. • Scalable Solutions: AI tools designed to grow with your business or research ambitions. • Enhanced Research Impact: Collaborate on research projects with guaranteed support from an experienced corresponding author. 📖 Experience & Achievements Published Research: • Lead author of “From Data to Decisions: Enhancing Financial Forecasts with LSTM for AI Token Prices” (Journal of Economic Studies, 2024). • Co-author of “Understanding the Business of Online Affiliate Marketing: An Empirical Study”, accepted at IEEE INFOCOM 2025. Certifications: • Generative AI: Prompt Engineering Basics (IBM, Coursera). • Introduction to Artificial Intelligence (AI) (IBM, Coursera). • Generative AI and LLMs: Architecture and Data Preparation (IBM, Coursera). Professional Achievements: • Delivered projects that improved client efficiency by over 30%. • 100% Job Success and Top Rated badge on Upwork, showcasing a commitment to excellence. 🤝 Let’s Work Together Whether you’re looking to transform your business with AI-powered solutions, publish impactful research, or gain insights through mentorship, I’m here to help. Explore my portfolio on GitHub or contact me directly to discuss how we can achieve your goals together. 🔍 AI Innovator | Generative AI Specialist | PhD Researcher | Expert in LLM Applications🔍
    Featured Skill Python
    Gemini
    LLaMA
    Chatbot
    LangChain
    Natural Language Generation
    Artificial Intelligence
    GitHub
    Hugging Face
    Chatbot Development
    ChatGPT API Integration
    ChatGPT
    AI Audio Generation
    LLM Prompt Engineering
    NLP Tokenization
  • $63 hourly
    • 5.0/5
    • (11 jobs)
    🚀 𝟖-𝐘𝐞𝐚𝐫 𝐏𝐫𝐨𝐯𝐞𝐧 𝐄𝐱𝐩𝐞𝐫𝐭 𝐢𝐧 𝐆𝐥𝐨𝐛𝐚𝐥 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 As a 𝐬𝐞𝐚𝐬𝐨𝐧𝐞𝐝 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐫 + 𝐅𝐮𝐥𝐥-𝐂𝐲𝐜𝐥𝐞 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐬𝐭 who transitioned from technical development to SaaS product leadership, I've spearheaded 𝟒 𝐫𝐞𝐯𝐞𝐧𝐮𝐞-𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐒𝐚𝐚𝐒 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 𝐚𝐜𝐡𝐢𝐞𝐯𝐢𝐧𝐠 $𝟏𝟎𝟎𝐊+ 𝐦𝐨𝐧𝐭𝐡𝐥𝐲 𝐫𝐞𝐯𝐞𝐧𝐮𝐞. My hybrid expertise in 𝐏𝐌 + 𝐓𝐞𝐜𝐡 enables me to deliver turnkey solutions for Amazon/Shopify ecosystems. Key Achievements: ✅ Built 4 SaaS products generating $10k+/day revenue ✅ 30%+ efficiency gains through agile process optimization ✅ Reduced product defect rate from 70% → 20% ✅ Pioneered new business lines generating $100k+ MRR ✅ Managed cross-functional teams of 10+ members 𝐂𝐨𝐫𝐞 𝐎𝐟𝐟𝐞𝐫𝐢𝐧𝐠𝐬: ✦ 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐜 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 - Market Analysis & Competitor Benchmarking - SaaS MVP Development & Iteration Roadmaps - AI knowledge base integration, RAG systems, and workflow automation - Shopify App Store Optimization Strategies ✦ 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐄𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 - Amazon Seller Tools Development - Shopify Store Optimization (SEO/CRO) - Digital Marketing Automation Systems ✦ 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 - Full-Stack Development (React/Node.js/Python) - API Integration & Data Migration - Legacy System Modernization 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? 🔹 𝐃𝐮𝐚𝐥-𝐏𝐞𝐫𝐬𝐩𝐞𝐜𝐭𝐢𝐯𝐞 𝐀𝐝𝐯𝐚𝐧𝐭𝐚𝐠𝐞 Technical background (2yrs dev experience) + Business acumen (3yrs PM) enables me to bridge the gap between stakeholders and engineers 🔹 𝐌𝐞𝐭𝐫𝐢𝐜𝐬-𝐃𝐫𝐢𝐯𝐞𝐧 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡 Implement data tracking systems with KPI dashboards for real-time decision making 🔹 𝐄𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦 𝐌𝐚𝐬𝐭𝐞𝐫𝐲 Deep understanding of Amazon/Shopify API integrations, compliance requirements, and App Store algorithms Featured Case Studies: 1. SEO Master Shopify App Built Shopify SEO App 𝐟𝐫𝐨𝐦 𝟎→𝟏, 𝐚𝐜𝐡𝐢𝐞𝐯𝐢𝐧𝐠 𝟓𝟎𝟎% 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐠𝐫𝐨𝐰𝐭𝐡 𝐢𝐧 𝟑 𝐦𝐨𝐧𝐭𝐡𝐬 2. TouchConsumer FB Message SaaS Increased daily revenue 𝐟𝐫𝐨𝐦 $𝟑𝐤→$𝟏𝟎𝐤 through feature iteration 3. Military-Civil Integration Project 𝐋𝐞𝐝 𝟗-𝐦𝐞𝐦𝐛𝐞𝐫 𝐭𝐞𝐚𝐦 to deliver national-level digital transformation project Technical Toolkit: `React/Next.js` `Node.js` `Python/Django` `Shopify Liquid` `AWS` `RESTful API` `Big Data Analytics` `Agile/Scrum` Industries I Serve: ► Cross-border E-Commerce Platforms ► SaaS Startups (0→1 Stage) ► Automotive Digital Transformation ► Marketing Technology Solutions Let's Build Your Next Growth Engine! I offer 30-min zoom consultation or free message to analyze your business needs and propose actionable solutions. Reach out now to discuss how we can: - Validate product-market fit - Optimize conversion funnels - Scale SaaS monetization - Automate operational workflows
    Featured Skill Python
    Docker
    Flask
    Django
    Next.js
    API Integration
    Full-Stack Development
    Web Application
    Web Development
    AI Agent Development
    AI Bot
    SaaS Development
    SaaS
    Shopify SEO
    Shopify Apps
  • $45 hourly
    • 4.9/5
    • (44 jobs)
    Thank you for taking the time to view my profile. I'm a professional electrical engineer with experience in power electronics, digital circuits, analog circuits, and HF RF circuits. My favorite EDA tools are OrCAD Capture CIS for schematics design, Allegro for PCB design, PSpice for circuit simulation, Verilog/Vivado for digital and FPGA design, SIMetrix/SIMPLIS for SMPS design. Still, I have used many other EDA tools under customer/client requests in the past, such as Altium Designer, LTspice, TINA-TI, ADS, Quartus Prime, etc. I'm also a professional programmer with experience in PC BIOS, BSP, Linux, and Android, and I'm familiar with many programming languages such as x86 assembly, ARM assembly, C, C++, Java, Python, HTML, CSS, XML, SQL, JavaScript, Unix shell script. I have many mass production designs for domestic clients and some from foreign countries. If you want reference to some of my product designs, I can ask for the client's permission as they are mostly NDA secured. I'm serious about the intellectual properties of others. But you can view my portfolio for a LF N2PK VNA and a Red Pitaya STEMlab125 designs, both are the few best in class amateur measurement equipment with professional device quality, I improved on their original design to better fit my daily electrical test requirements, and as I just produce my own improved design for my private use, so it's legal for me to show them here without IP issues with the copyright holders. My current interest and most recent skills are FPGA, SMPS, motor control, and automotive electronics. My previous strong skills are ARM architecture board design, BSP and Linux kernel porting, and Linux system programming.
    Featured Skill Python
    OrCAD
    Qt Framework
    RF Design
    Linux
    FreeRTOS
    Analog Circuit
    PCB Design
    C
    PSPICE
    Android
    C++
    SQL
    Java
    Power Electronics
  • $35 hourly
    • 5.0/5
    • (52 jobs)
    More than 15 years experience in software programming, and I would be very happy to show you my skills and I am confident you would not be disappointed. Very fast learner, with a high desire to be challenged. Excels when presented with objectives and goals. Always looking to acquire new knowledge and develop new strengths. Please SEE MY PORTFOLIO PAGE for my detailed resume.
    Featured Skill Python
    MySQL Programming
    Docker
    CSS
    JavaScript
    jQuery
    HTML
    AngularJS
  • $50 hourly
    • 4.7/5
    • (232 jobs)
    A freelancer who has focused on Wordpress related projects for over 15+ years :) -- Payment Gateway Integration -- Paypal, Alipay, UnionPay, Wechat Payment, Stripe -- HTML5, CSS3, React -- Coding a html5, css3 responsive page PSD to html5,css3 responsive theme Convert a static html theme to responsive theme React component development --------Wordpress---------- Wordpress plugin customization/development PSD to Wordpress responsive theme Build a wordpress site --------Support---------------- At least 180 days of free support will be included in my service package.
    Featured Skill Python
    JavaScript
    PyTorch
    React
    Payment Gateway Integration
    WooCommerce
    API Integration
    WordPress
    WordPress Plugin
    PHP
  • $35 hourly
    • 5.0/5
    • (102 jobs)
    🚀 Welcome to my Upwork Profile! 🚀 Are you looking for a proficient scraping expert and data engineer to extract valuable insights from the vast ocean of data on the web? Look no further! With a proven track record of delivering high-quality data engineering solutions and scraping services, I'm here to help you turn raw data into actionable intelligence. 🔍 **Scraping Expertise:** I specialize in web scraping, utilizing cutting-edge techniques and tools to efficiently gather structured data from various online sources. Whether it's e-commerce product data, social media posts, or financial information, I have the skills and expertise to scrape it all while ensuring data accuracy and reliability. 💻 **Data Engineering Solutions:** As a seasoned data engineer, I thrive on building robust data pipelines and scalable infrastructure to handle large volumes of data. From data collection and storage to processing and analysis, I design and implement end-to-end solutions tailored to your specific needs. My goal is to empower businesses with actionable insights that drive informed decision-making. 🛠️ **Technology Stack:** I'm proficient in a wide range of tools and technologies including, but not limited to: - Web scraping frameworks like Scrapy, BeautifulSoup, and Selenium - Database management systems such as MySQL, PostgreSQL, and MongoDB - Data processing libraries like Pandas, NumPy, and Spark - Cloud platforms like AWS, Google Cloud, and Azure 📈 **Why Choose Me?** - **Reliability:** I prioritize timely delivery and maintain open communication throughout the project lifecycle. - **Quality Assurance:** Rigorous testing and validation processes ensure that the data delivered is accurate and reliable. - **Scalability:** My solutions are designed to scale effortlessly, accommodating your growing data needs without compromising performance. 🤝 **Let's Collaborate:** Whether you need a one-time scraping task or a long-term data engineering partner, I'm here to help. Let's discuss your project requirements and explore how we can work together to unlock the full potential of your data assets. 📩 **Contact Me:** Don't hesitate to reach out if you have any questions or would like to discuss your project in detail. I'm looking forward to hearing from you!
    Featured Skill Python
    Microsoft Excel
    Mandarin Dialect
    Translation
    MySQL
    RabbitMQ
    SQL Programming
    Redis
    Java
    Data Extraction
    API Integration
  • $50 hourly
    • 5.0/5
    • (91 jobs)
    🌟 Top-Rated Web Scraping Specialist on Upwork Hello! I'm a dedicated Web Scraping Specialist with over 8 years of experience, proud to be a top-rated freelancer on Upwork with a reputation for delivering 100% customer satisfaction. ⚡ Let's unlock and harness the full potential of web data together! My Expertise 💪 - Versatile Experience: Skilled in scraping diverse sectors, including e-commerce, real estate, and cannabis. I thrive on challenges and provide effective solutions to even the most complex data retrieval tasks. - Master of Complexity: I have the proficiency to extract large-scale data efficiently, tackle web automation challenges, and bypass robust anti-bot measures on websites heavily reliant on JavaScript or AJAX. Why Collaborate With Me? 🤝 1. Anti-Bot Proficiency: I adeptly navigate through protections like Cloudflare and DataDome, ensuring seamless data access. 2. Tailored Solutions: I craft custom web scraping strategies designed for rapid and precise data extraction that aligns with your specific goals. 3. Automated Efficiency: I set up automated scripts on servers for hassle-free, scheduled data harvesting. 4. Technical Mastery: Utilize advanced techniques to overcome IP bans, rate limitations, and restrictions effectively. 5. CAPTCHA Expertise: Specializing in solving CAPTCHA puzzles to ensure uninterrupted data flow. 6. Consistent Updates: Regularly schedule data extractions to keep your information current and reliable. 7. Format Versatility: Deliver data in user-friendly formats such as CSV, JSON, Excel, and databases. 8. Dynamic Content Handling: Tackle websites with complex JavaScript elements to extract dynamic content seamlessly. Technical Toolbox 🔧 - Scrapy 🐍 - Playwright 🚀 - Selenium ⚙️ - BeautifulSoup/lxml 🌿 - Linux/Windows VPS Management 🖥️ - Database Management (MongoDB, PostgreSQL, MySQL) 📊 Let’s join forces to transform your data ambitions into reality. Contact me today and let's explore possibilities! 🌠
    Featured Skill Python
    Web Crawling
    Web Scraping
    Scrapy
    Selenium
    Data Scraping
    Python-Requests
    Beautiful Soup
    Data Extraction
  • $20 hourly
    • 5.0/5
    • (62 jobs)
    I am a Python/Golang/PHP Programmer with more than 7 years of experience in Development, I have a strong knowledge of web scraping. I can scrape any website, even with dynamic / javascript data and login-requirement and then provide scraped/extracted data in any format: Excel/CSV, XML, JSON, Database, GoogleSheet, WordPress API, etc. 📞I speak English, you can have a meeting/screenShare with me.📞 𝐘𝐨𝐮 𝐜𝐚𝐧 𝐡𝐢𝐫𝐞 𝐦𝐞 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐦𝐢𝐬𝐬𝐢𝐨𝐧: 1) Web Scraping 🔺 Data scraping/Extraction, Data mining 🔺 Scrapy / Selenium / Playwright / BeautifulSoup / Xpath 🔺 Pandas / Captcha Bypass / Cloudflare Bypass 2) Development 🔺 Python, Golang, PHP, HTML, CSS 🔺 WebAdmin: Django, Flask 🔺 Automation Bot / RPA Bot 🔺 API and Backend 🔺 WordPress Plugin 3) Database 🔺 MongoDB, Mysql, PostgreSQL, Sqlite3, Redis 🔺 AWS, S3 Bucket, DynamoDB, CloudWatch I am a full-time Upworker recently, 8 𝙝𝙤𝙪𝙧𝙨 𝙥𝙚𝙧 𝙙𝙖𝙮. 𝙄 𝙙𝙤 𝙢𝙮 𝙗𝙚𝙨𝙩 𝙛𝙤𝙧 𝙮𝙤𝙪, Only 2 contracts in a progress, Looking forward to working with you.
    Featured Skill Python
    Selenium WebDriver
    Automation
    JavaScript
    Golang
    PHP
    API
    Data Extraction
    HTML
    Web Crawling
    Bot Development
    WordPress
    Selenium
    Beautiful Soup
    Data Scraping
  • $20 hourly
    • 5.0/5
    • (13 jobs)
    I have been developing software on Windows basically on C# and C++ for more than 7 years, 40 hours/week availability. Quick learner, strong in problem-solving. I'm always available, feel free to contact me. thank you. Familiar with MFC framework and multi-threading Technology, especially love the DLL Technology. My professional experience involves significant projects on network programming such as C2S project with IOCP (C++ or C#). Secondary Development for AUTOCAD (C#/C++) and AVEVA Plant (C#) secondary Development with NetEase YunXin SDK(IM). experienced in GDI GUI with directx9/OSG or GDI Functions.I have released my GUI Open-Source Project in GitHub. thorough understanding of memory management principles and common software design patterns.Nowadays,i have experienced in cheating in the PC Games.so i am familiar with system api and asm(x86/64) and PE Technology. such as inject ,remote load PE etc. In order to automate, i have already been using cefsharp to WebGames. I have very strong skills both in Front-end and Back-end development basically on asp.net. Programming Languages: Asp.net,SQL, CSS, Javascript, .net core,c++/C# vb.net Frameworks/Libraries: - .Net Framework - MVC Framework - jQuery Databases: - SQL Server - MySQL Familiar with: -web API Version control systems: -SVN, -git Personal Qualities: - Ability to understand business requirements and translate them into technical requirements. - Passion for quality and attention to detail. - Focus on moving the business forward. - Professional communication. - Responsible dealing. It's my pleasure to apply my experience to solve your problems in a reasonable time. thanks
    Featured Skill Python
    Qt Framework
    MetaTrader 4
    CSS 3
    HTML5
    jQuery
    OpenCV
    DirectX
    Autodesk AutoCAD
    ASP.NET MVC
    Microsoft Visual Studio
    Assembly Language
    Desktop Application
    C#
    C++
  • $25 hourly
    • 5.0/5
    • (191 jobs)
    你好！Hello!👋 This is Chen, a TOP RATED freelancer and graduated from Top 10 universities in China. I am very familiar with Simplified/ Traditional Chinese and English (have about 7+ years of translation and proofreading experience). I try my best to pursue client satisfaction and high quality work delivery. If you are looking for an English-Chinese (Simplified/ Traditional) translator/proofreader/editor/copywriter who: 1. Is detail and client oriented (start work right away&proofread two or three times before submission) 2. Is fast in response and delivery 3. Promises to deliver and only deliver high quality work (not to skip over any questions) 4. Is passionate for translation and languages (do relevant research on unfamiliar topics, pursues lifelong learning) 5. Is able to generate creative content that attracts target audience 6. Strives to excel in every single task, big or small Please message me :) Client feedback: ⭐"As an avid gamer and someone who values high-quality content, I was fortunate to come across an exceptional gaming writer on Upwork. This writer's expertise in the gaming industry is truly impressive. They consistently deliver engaging, well-researched, and insightful articles that captivate readers and provide valuable information. Their attention to detail, creativity, and ability to meet deadlines have made collaborating with them a seamless and enjoyable experience. Whether it's game reviews, industry news, or feature articles, this writer goes above and beyond to exceed expectations. If you're looking for a talented and reliable gaming writer, I highly recommend hiring them through Upwork." ⭐"Chen's work was always of high quality. He made adjustments when requested without issue, and adhered to deadlines, even when they were very tight. I would highly recommend his translation skills and look forward to working together again." ⭐"Very accomodating, very professional results" ⭐"Task was completed without any issues whatsoever. Very reliable!" Thanks for reading! And look forward to working with you! Chen
    Featured Skill Python
    Engineering & Architecture
    Search Engine Optimization
    Linguistics
    Mobile App Localization
    English to Chinese Translation
    Chinese to English Translation
    Information Technology
    CAD
    Translation
    SolidWorks
  • $20 hourly
    • 5.0/5
    • (6 jobs)
    As part of a team, I bring extensive experience in problem-solving and critical thinking to the table. As a certified machine learning engineer and data scientist, I have worked on computer vision and deep learning applications and have been instrumental in creating architectures, training models, and turning data science prototypes into production-ready solutions. Additionally, I have a solid foundation in traditional machine learning approaches, conventional image processing techniques, and statistical analysis. Working with a team, I can contribute my skills in: • Deep Learning • Computer Vision • Image processing with OpenCV and Pillow • TensorFlow 2.x and PyTorch • CAD and Simulations • SolidWorks • Autodesk Fusion 360 • ANSYS • Data analytics • Data analysis • Data visualization using Tableau • Python • R • SQL • Excel • Powe BI • Spreadsheets • Machine learning algorithms • Statistical modeling • Hypothesis testing • Experimental design • Data preprocessing and cleaning • Feature selection and engineering • Model evaluation and selection Furthermore, I am adept at communicating technical concepts to both technical and non-technical audiences and believe in open communication, constructive feedback, and collaboration to achieve the team's goals.
    Featured Skill Python
    Data Engineering
    Microsoft Azure
    ANSYS
    Data Analysis
    Microsoft Power BI
    Data Visualization
    Microsoft Excel
    SQL
    Image Processing
    Computer Vision
    Data Science
    PyTorch
    Machine Learning
    Deep Neural Network
  • $25 hourly
    • 5.0/5
    • (21 jobs)
    I am a Data Engineer with four years of experience in Big Data, specializing in constructing ETL pipelines with Airflow and Apache Spark, along with Apache Spark task performance optimization. I have contributed as a Data Engineer in esteemed organizations: 🏆Xiaomi - Fortune Global 500 company 🏆Shopee - $30B market cap, $10B+ revenue ⭐ Services I Provide: ✅ Big data processing using Spark Scala | Java, with proven expertise in optimizing Spark task performance. ✅ Building end-to-end data processing pipelines for seamless and efficient data flow. ✅ Expertise in data extraction and precision in ETL data transformation. ✅ Implementation of data cleaning techniques to ensure high data quality. ⭐ Key Skills: ✅ Big data - Apache Spark, Flink, Hadoop, Kafka, HDFS, Hive, Airflow, Druid ✅ NoSQL - HBase, Redis ✅ Platform - Data Warehousing, Data lake ✅ Programming Languages - Java, Scala, Python, SQL ⭐ Why choose me over other freelancers: ✅ Over-delivery: This is the core of my work as a freelancer. I focus on exceeding expectations, a trait acknowledged during my tenure at Xiaomi. ✅ Responsiveness: I prioritize clear and prompt communication, ensuring clients are informed and engaged throughout the project lifecycle. ✅ Kindness: I approach every facet of my work with kindness, treating everyone with respect, understanding situations with empathy, and genuinely aiming to improve my client's situations.
    Featured Skill Python
    Data Cleaning
    Data Extraction
    Data Engineering
    SQL
    ETL Pipeline
    Apache Kafka
    Apache Spark
    Apache Hadoop
    Java
    Hive
    Apache Flink
    Big Data
    Scala
  • $30 hourly
    • 5.0/5
    • (16 jobs)
    Python * scrapy * selenium * requests * xpath * regular expression * json * mysql, pymysql, sqlalchemy * mssql, mymssql * other skills like - mutli-threads - proxies usage Automation: * excel automation * pdf extraction * web automation Unit test
    Featured Skill Python
    Web Scraping
    Web Crawler Framework
    Data Entry
    MySQL Programming
    Web Crawler
    Data Mining
    Scrapy
    Regex Writing
    Data Extraction
    Web Crawling
    Web Scraping Framework
    Data Scraping
    Selenium
  • $30 hourly
    • 5.0/5
    • (30 jobs)
    Hello 😉, I am a Game Designer with 7 years experience in the game industry, and worked in Tencent Games for more than 5 years. I have experienced 3 big projects, which are shown in my portfolio, 2 of them were published on App Store. Right now, I'm working on my own indie game as a full-stack developer. In the meantime, I'd love to help anyone who has problem with game development😊. I provide service include: ⭐️ Unity game development. ⭐️ Game system/level design. ⭐️ C# & Lua script programming. ⭐️ Game UI design. ⭐️ Game testing. etc. If you have any problem about Game Development, Game Design or Game Testing, just contact me🤝!
    Featured Skill Python
    Gaming
    Game Design
    Game Development
    Chinese
    Game
    Game Testing
    Video Game
    Unity
    Lua
    C#
  • $30 hourly
    • 5.0/5
    • (23 jobs)
    Hi, I'm Erik Pan based in Shanghai, with a background in intelligent manufacturing and Industry 4.0. I specialize in designing AI-driven automation solutions, combining advanced AI/ML development, MLOps, and industrial digital twins to optimize efficiency, reduce costs, and streamline workflows. 🎯 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗙𝗼𝗰𝘂𝘀 𝗔𝗿𝗲𝗮𝘀 - 𝘼𝙄/𝙈𝙇 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: Custom LLM implementation (GPT, Deepseek, Gemini) - 𝙈𝙇𝙊𝙥𝙨: Model deployment using Docker, edge computing optimization - 𝘾𝙤𝙢𝙥𝙪𝙩𝙚𝙧 𝙑𝙞𝙨𝙞𝙤𝙣: YOLO, OpenCV, Pytorch models, OCR - 𝘾𝙡𝙤𝙪𝙙 & 𝘼𝙪𝙩𝙤𝙢𝙖𝙩𝙞𝙤𝙣: Serverless architecture design (Cloudflare Workers, Runpod) - 𝙬𝙚𝙗 𝙎𝙘𝙧𝙖𝙥𝙞𝙣𝙜 & 𝙧𝙚𝙫𝙚𝙧𝙨𝙚 𝙚𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜: Large-scale web scraping with Selenium, requests - 𝘼𝙋𝙄 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: FastAPI/Flask microservices with OAuth/JWT security - 𝙄𝙣𝙙𝙪𝙨𝙩𝙧𝙞𝙖𝙡 𝘿𝙞𝙜𝙞𝙩𝙖𝙡 𝙏𝙬𝙞𝙣𝙨: Nvidia Omniverse for industrial digital twin solutions 💡 𝗕𝗶𝗹𝗶𝗻𝗴𝘂𝗮𝗹 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗼𝗿 (𝗘𝗡/𝗖𝗡) 𝘄𝗶𝘁𝗵 𝗽𝗿𝗼𝘃𝗲𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻: - 𝘾𝙧𝙤𝙨𝙨-𝙛𝙪𝙣𝙘𝙩𝙞𝙤𝙣𝙖𝙡 𝙩𝙚𝙖𝙢 𝙘𝙤𝙤𝙧𝙙𝙞𝙣𝙖𝙩𝙞𝙤𝙣 - 𝙏𝙚𝙘𝙝𝙣𝙞𝙘𝙖𝙡 𝙙𝙤𝙘𝙪𝙢𝙚𝙣𝙩𝙖𝙩𝙞𝙤𝙣 𝙩𝙧𝙖𝙣𝙨𝙡𝙖𝙩𝙞𝙤𝙣 - 𝘼𝙜𝙞𝙡𝙚 𝙥𝙧𝙤𝙟𝙚𝙘𝙩 𝙢𝙖𝙣𝙖𝙜𝙚𝙢𝙚𝙣𝙩
    Featured Skill Python
    API
    Modeling
    NVIDIA Omniverse
    Docker
    Cloud Computing
    Artificial Intelligence
    Web Crawler
    Browser Extension
  • $20 hourly
    • 5.0/5
    • (3 jobs)
    ✅ 17+ years focusing on software testing. 10+ years working in global teams. Fluent English. ✅ I have worked for Fortune Companies, Enterprise clients, and Startups. I am flexible in any role and open to various projects ranging from simple to complex projects. ✅ Current active participant in crowd testing platforms.(uTest, Testio, etc.) ✅ I have worked on projects developed by Java, .Net, PHP, Vue, Uni-app, etc. ✅ Experienced in Test Documentations: Test Plan | Test Strategy | Test Case | Test Scenarios | Tractability Matrix |Bug Report | Test Summary Report ✅ Excellent in logical thinking and problem solving. Highly responsible. Self-independent and motivated. Good at communication and collaboration. ✅ Successfully built automated testing framework using Python+requests/Appium and implemented API/mobile UI automation test in core projects ✅ Automation/Test Tools: Selenium Web driver, Appium, Browser stack, JMeter, Metersphere, Fiddler, Postman, Swagger ✅ IT Skills: Familiar with MySQL, Linux/docker operation, and familiar with Jenkins, Gitlab, SVN ✅ Project Management Tools: JIRA, ALM ✅ Availability of devices: Windows laptop/Android Phone/iPhone/iPad
    Featured Skill Python
    Test Case Design
    Jenkins
    Jira
    Postman
    Apache JMeter
    SQL
    Selenium
    Appium
    Performance Testing
    API Testing
    Test Automation
    Test Automation Framework
  • $10 hourly
    • 5.0/5
    • (13 jobs)
    I excel in the following areas: 🌟 Extracting data/Web scraping/APP scraping. 🌟 Simulating human behavior to bypass captcha challenges, including Google ReCaptcha v1, v2, and v3, as well as similar technologies like Image CAPTCHA, Text CAPTCHA, and behavior analysis. Leveraged AI-powered techniques to enhance captcha solving accuracy and efficiency. 🌟 Support for global proxy pools for data acquisition from different countries. 🌟 Distributed architecture for faster data extraction. Implemented AI-driven task scheduling for optimized resource allocation. 🌟 AI-based data extraction to adapt to various website structures. Proficient in using AI models for dynamic content identification and data structuring. My technology stack: 🌟 Automation: Scrapy, Selenium, Puppeteer, Playwright, DrissionPage. Integrated with AI-assisted code generation tools for faster development cycles. 🌟 Backend: Python, Java, Node.js. Experienced with LLM-powered code completion and debugging tools. 🌟 Frontend: Vue, HTML+CSS+JS. 🌟 Database: PostgreSQL, MongoDB, Redis, MySQL. Familiar with vector databases for RAG system implementation. 🌟 Web: Flask. Implemented RAG (Retrieval-Augmented Generation) systems using Flask for enhanced application functionality.
    Featured Skill Python
    Android
    Node.js
    Online Research
    WeChat
    Scripting
    Electron
    Automation
    Website Builder
    JavaScript
    Data Science
    Selenium WebDriver
    Web Crawling
    Redis
    Database
  • $30 hourly
    • 5.0/5
    • (11 jobs)
    I am a seasoned hardware and embedded systems development engineer, capable of undertaking the design and development of various embedded systems, microcontroller systems, IoT hardware devices, smart devices, gateway devices, microcontroller systems, and all types of circuit development boards. Additionally, I possess many years of experience in FPGA development and can design various FPGA systems according to your requirements. -I can assist you with various aspects such as hardware circuit design, embedded system design, FPGA design, and microcontroller design, and can rapidly and efficiently develop a range of devices to meet your requirements. -I can develop hardware devices for various fields like IoT, smart cities, and intelligent monitoring, helping you quickly set up industry applications. -I am capable of undertaking work in circuit schematic design, PCB design, and system application software design, covering all aspects of electronic product development. -With many years of experience collaborating with clients and partners worldwide, I can easily communicate and interface with global customers. -I handle issues efficiently and promptly, able to provide timely feedback on various customer demands.
    Featured Skill Python
    5G
    Computer
    C++
    VHDL
    Verilog
    FPGA
    Hardware Design
    Computer Vision
    Embedded System
  • $20 hourly
    • 5.0/5
    • (127 jobs)
    Hello, my name is Guo Jihao, and I graduated with a bachelor's degree in computer science. I am proficient in crawling and analyzing data from various websites, especially Chinese websites. For example: Xiaohongshu (RedNote), Weibo, Douyin, bilibili, Dianping, Xinhua, WeChat, X(Twitter), Reddit I use different tools for Web Scraping, like: ✅ Scrapy, Selenium, Playwright (for dynamic content) ✅ BeautifulSoup & Requests (for fast, lightweight scraping) ✅ Handling Captchas, Rotating Proxies, User-Agent Spoofing ✅ Storing data in CSV, JSON, or databases (MongoDB, MySQL, PostgreSQL) I am looking forward to working in the field of Web Scraping and offering my services at an affordable price.
    Featured Skill Python
    QA Testing
    Web Testing
    Data Analysis
    Data Mining
    Web Crawling
    Web Scraping
    Data Scraping
    Data Extraction
    Sourcing
    Testing
    Factory & Supplier Auditing
    1688.com
    English to Chinese Translation
    Chinese
  • $20 hourly
    • 5.0/5
    • (8 jobs)
    Hello, I am Yixu Chen, a software developer since 2015. My major in university was Mechanics Engineering, however, I found myself interested in programming when I started the C++ Course in my first year at Xian Jiaotong University, so I became a software developer when I graduated. I worked at different industries during my career so far. I developed E-Medical systems for hospitals, Future Trading Systems for exchanges, Consultation Bots for Tax Bureaus, Internal OA systems for groups as well as an Investing App for Fidelity Canada, which has made me a veteran out of a private. Currently, I have gained the following skills: Frontend: 👍 HTML & CSS 👍 Tailwind CSS 👍 Javascript / Typescript 👍 React 👍 NextJS 👍 Redux 👍 Material-UI 👍 Styled Components 👍 Internationalization Backend: 👍 Nginx 👍 Java 👍 Go 👍 Python 👍 Spring / SpringBoot / SpringAOP 👍 MySQL 👍 PostgreSQL 👍 Redis 👍 ElasticSearch 👍 AWS / Terraform 👍 Github 👍 Bitbucket 👍 Camunda 👍 Postman 👍 Unit Test DevOps: 👍 Jenkins 👍 Docker 👍 Kubernetes 👍 Linux Shell I am a proactive developer and detail-sensitive, I can design the whole system from the top and pay attention to the details at the bottom, I can also forecast the potential changes of the requirements in the future. Looking forward to our collaboration, and your trust in me will be repaid with a perfect project of high availability, flexibility and scalability.
    Featured Skill Python
    MERN Stack
    Three.js
    Next.js
    MySQL
    Tailwind CSS
    Redux
    Spring Boot
    Flask
    Django
    React
    Golang
    Vue.js
    Java
  • $15 hourly
    • 4.8/5
    • (14 jobs)
    Specializing in financial modelling, quantitative analysis, trading, and operations with over 10 years of experience in securities market investments. CFA Certification. My additional areas of expertise include mandarin translation, web scrapping, automations, tutoring, and data analysis. Below is a brief summary of my technical skills: 🐍 Python: - Data Analysis and Visualization - Web Scrapping - Generative AI - Machine Learning and Deep Learning 📝 Financial Modelling and Quantitative Analysis: - Risk Management - Options Pricing - Portfolio Analysis 💹 Trading: - Algorithm Development - MT4, TradingView (Pine Script), IG - Screening and Back-testing 🪄 Automations: - Multi-Processing - Google Sheets - Scheduling - Document Manipulation - Email Automation 📈Excel and Google Sheets: - Complex Formula Calculations - Table and Graph Organization - Optimization - Statistical Modelling - VBA - App Script 🔍 SQL (MySQL, Microsoft SQL Server): - Data Querying - Functions and Keys - Relationship Management 📊 Power BI: - Data Import and Transformation - DAX Calculations - Relationship Modelling - Data Visualization
    Featured Skill Python
    Microsoft Power BI
    Microsoft Excel
    SQL
    English
    Mandarin Chinese
    Web Scraping
    Automation
    Business Mathematics
    Quantitative Analysis
  • $20 hourly
    • 5.0/5
    • (5 jobs)
    I’m a developer experienced in building websites for small and medium-sized businesses. skilled python/java web backend. Knows vue2, jQuery
    Featured Skill Python
    Electron
    Spring Boot
    Python-Requests
    Microsoft Excel
    Java
  • $8 hourly
    • 5.0/5
    • (10 jobs)
    I am a native Chinese. I have a lot of work experience, I have done purchasing work, administrative work for many years. I also know patent searching, video, audio and image editing, writing code, and so on. I am conscientious, hard-working and down-to-earth. I have a lot of free time now.
    Featured Skill Python
    Intellectual Property Protection
    Intellectual Property Law
    Virtual Private Server
    Video Editing
    VPN
    Adobe Photoshop
    Visual Basic
    JavaScript
    PHP
    Patent Preparation
    Patent Registration
    Patent Law
    Patent
    Patent Search
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