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Tengo una carpeta local llena de comprobantes CFDI en formato XML y necesito un pequeño script en Python que, usando mi certificado digital, consulte el Web Service del SAT y devuelva el estatus de cada archivo... (Budget: $30 - $250 USD, Jobs: API, Data Processing, JavaScript, PHP, Python, Software Architecture, Web Services, XML)

The job is a focused security review of a specific WordPress plugin I will provide. Your task is to confirm and fully document any Cross-Site Scripting (XSS) weaknesses you uncover, then map each verified issue to an exact CVSS v3.1 vector and numerical score... (Budget: $10 - $30 USD, Jobs: JavaScript, Network Security, Penetration Testing, PHP, Risk Assessment, Security, Web Security, WordPress)

I am looking for an experienced freelancer to design and develop a web-based application that is user-friendly, secure, and scalable. The system should follow modern UI/UX standards and be suitable for real-world use... (Budget: $10 - $30 USD, Jobs: Database Development, Frontend Development, UX / User Experience, Web Application, Web Development, Web Security)

I’m building a small, purpose-driven billing app that will run on Android phones and tablets. The flow is simple: I type in each sale, the data is stored in our Miracle database, a polished PDF invoice is generated on-device, and I can print or share that file immediately... (Budget: ₹12500 - ₹37500 INR, Jobs: Android, Android App Development, API Development, Database Development, Java, Kotlin, Mobile App Development, XML)

My Samsung Galaxy Note 8 (currently on Android 9) already has its bootloader unlocked and I’m ready for a complete wipe, so there’s no need to preserve any data or apps. I’d like it brought straight... (Budget: $15 - $25 USD, Jobs: Adobe Flash, Android, Android App Development, Firmware, Java, Mobile App Development, Mobile Development, Mobile Repair, System Administration, Technical Support)

I need an experienced Java Spring Boot professional who can teach an online group of intermediate learners for two hours each day, Monday through Friday. We already have core topics we must hit—dependency... (Budget: ₹1500 - ₹12500 INR, Jobs: J2EE, Java, Java Spring, JavaFX, JSP, RESTful, Software Development, Spring Boot)

I need an experienced Java Spring Boot professional who can teach an online group of intermediate learners for two hours each day, Monday through Friday. We already have core topics we must hit—dependency... (Budget: ₹1500 - ₹12500 INR, Jobs: J2EE, Java, Java Spring, JavaFX, JSP, RESTful, Software Development, Spring Boot)

Product Migration & Catalog Build – WooCommerce I have two websites: Catalog Website – this site already contains • All product images • Product information • Categories and structure New WordPress... (Budget: $30 - $250 USD, Jobs: Database Management, HTML, Inventory Management, PHP, Product Management, SEO, Web Development, WooCommerce, WordPress, XML)

2D Explainer Animation – QR-Based Postcard Campaign (60–90 sec) Description We are looking for a skilled 2D animator to create a short explainer animation (60–90 seconds) that visualizes how our web application creates and tracks personalized QR-code postcard campaigns... (Budget: $250 - $750 USD, Jobs: 2D Animation, 2D Animation Explainer Video, Adobe Flash, After Effects, Animation, Explainer Videos, Motion Graphics, Video Services)

I want to replicate the core power of Matrixify inside a brand-new Shopify app focused purely on fast, reliable data import and export. The app must let merchants move their Products, Orders, Customers,... (Budget: $250 - $750 USD, Jobs: API Development, Data Integration, Excel, GraphQL, RESTful API, Shopify Development, Web Application, XML)

I want a single Power Automate flow that pulls new Microsoft Forms submissions containing our pilot checklist items, combines those answers with the corresponding sensor data readings we export from rosbag,... (Budget: ₹12500 - ₹37500 INR, Jobs: Data Entry, Data Integration, Data Management, Data Processing, Excel, JSON, Microsoft Access, Power Automate, Sharepoint)

Project Brief: Smart Agriculture Drone with APK Integration Objective We need a prototype drone that can assist farmers by monitoring crop health and environmental conditions. The drone should detect whether... (Budget: ₹12500 - ₹37500 INR, Jobs: Android, Android App Development, Arduino, Coding, Drones, Electronics, Embedded Systems, Microcontroller, Mobile App Development, Robotics)

I’m reviving the classic living-room radiogram as the Eco Radiogram—a single piece that balances elegant, sustainable construction with cutting-edge convenience. Modern technology is the priority, so every... (Budget: $50000 - $100000 AUD, Jobs: Bluetooth, Electrical Engineering, Electronics, Embedded Systems, Industrial Design, Mobile App Development, PCB Layout, Prototyping, User Experience Research, User Interface / IA)

I'm seeking an experienced PCB designer to create, build, and test a custom rectangular PCB for a wearable light display device. The device will use a Xiao ESP32-C3. Key components to integrate: - round LIPO Batery 3,7v 500mah 38 diameter... (Budget: $250 - $750 USD, Jobs: Electrical Engineering, Electronics, Embedded Systems, Mobile App Development, PCB Layout, Product Design, Prototyping, Testing / QA)

I'm seeking assistance for functional testing on my Depression Support Doll prototype. The invention is currently at the research (IDEA) development stage, and I need to ensure its performance meets the required standards... (Budget: $250 - $750 AUD, Jobs: Electrical Engineering, Electronics, Product Development, Product Management, Research and Development, Scientific Research, Software Testing, Testing / QA, Usability Testing, Wireless)

I need a compact, single-board solution that combines a Raspberry Pi Zero 2 W, its camera module, an ADXL accelerometer, and a TP4056 charging circuit able to supply a steady 2 A for display unit. The... (Budget: $30 - $250 USD, Jobs: 3D Design, 3D Printing, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Design and Layout, PCB Layout, Raspberry Pi)

I have an on going project with STM32U5G9ZJT6Q on one of my Host board. The Host PCBA is connected to an external display via parallel interface. Currently its working with a different display but we would like to update the GUI compatible with a new LCD that we purchased (CH430WV11A-CTB)... (Budget: $1500 - $3000 USD, Jobs: Arduino, C Programming, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, Software Development, STM32)

Somos KAMEFU, empresa peruana dedicada al mundo recreativo, con un fuerte sentido de innovación y enfoque en experiencias presenciales memorables. Estamos buscando un/a ingeniero/a electrónico/a con experiencia... (Budget: $500 - $1000 USD, Jobs: Electrical Engineering, Electronics, Embedded Systems, Motor Control, PCB Layout, Product Design, Robotics)

I need a PCB layout produced and delivered in a compatible Circuit Studio format. The board will act as a four-slot bifurcation breakout for a PCIe x16 edge connector. Key parameters you should work to: • Form-factor: custom 100 mm × 80 mm, two-layer copper... (Budget: $30 - $250 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, PCB Layout)

I need detailed electrical load calculations for a commercial building. The focus is on a dual-port EV charger with the following specifications: - 80 amps - 19.8 kW Ideal Skills and Experience: - Electrical... (Budget: $250 - $750 USD, Jobs: Electrical Engineering, Electronics, Engineering, Mechanical Engineering)