Python + Web Developer — Bulk Video Processing & WhatsApp Messaging Platform

@kamran2012

Hey, I will deliver all three Python scripts — video personalizer with FFmpeg text overlay, AWS S3 batch uploader with auto-generated dispatch CSV, and WhatsApp API sender with retry logic and delivery logging. For the video personalizer handling 50,000+ files, I will implement multiprocessing with a worker pool so FFmpeg runs parallel renders across all CPU cores. This alone will cut processing time dramatically compared to sequential execution — and I will structure the pipeline so each finished video streams directly to S3 upload without waiting for the full batch to complete. Questions: 1) Which WhatsApp API provider are you using — Gupshup, Interakt, or a grey-route solution like Baileys? 2) What is the target overlay format — static text at a fixed position, or do you need animated name reveals timed to specific frames? Looking forward to your response. Best regards, Kamran

@DrSyafiq

I can build the Python automation pipeline with FFmpeg batch personalization, AWS S3/CloudFront upload using boto3, and dispatch CSV generation for WhatsApp campaign delivery. I would optimize for large batches, resumable processing, clear logs, error handling, and reproducible folder/CSV outputs so the system can handle 50,000+ videos reliably. I can start by validating the sample video/CSV and producing a working MVP quickly.

@AsimJaved706

With a proven track record in delivering automated and intelligent solutions, I believe I am the ideal candidate for your Bulk Video Processing & WhatsApp Messaging Platform project. I have not only worked extensively with Python but also have hands-on experience with FFmpeg batch video processing—just what you need for your unique MP4 per row overlaying task. In fact, I've successfully processed over a million files in a single batch run efficiently, so your project volume is in safe hands. operational side, as someone who's built automated AI-powered workflows on platforms like Slack, WhatsApp & Telegram, user handling poses no challenge. Investing in me means entrusting your project to a dedicated professional who won't shy away from pouring every ounce of their experience, energy and skills into developing exactly what you require and beyond. It's time you saved time on repetitive tasks and scaled up with my solution driven approach plus post delivery bug support ensuring your satisfaction way past job completion. Choose smart. Choose me!

@mkh559a5a1fd66e9

With my extensive experience as a Full Stack Developer for more than 14 years, I am confident that I can execute your project brilliantly. In line with your specific requirements, I have successfully implemented FFmpeg batch video processing in various projects and proficiently built bulk messaging systems using the WhatsApp API. Moreover, I specialize in Python for backend development and can bring you the best solutions utilizing this language. My skill set also includes the precise technologies you need for this project: AWS S3, CloudFront, MySQL/PostgreSQL, and messaging APIs. More importantly, I understand the need for a clean and professional UI, which I can deliver using my proficiency in React and HTML with Bootstrap. My development process embraces best practices like maintainability of code through CI/CD pipelines that ensures your non-technical team can operate independently.

@UzeeTech

With my extensive experience in Full-Stack Development spanning over 7 years, I strongly believe I'm your go-to choice for this project. My skills in Python, which encompasses leveraging FFmpeg and AWS, undeniably align with the requirements of your script building needs. Additionally, my expertise with WhatsApp API integrations such as Gupshup and Interakt makes me a very strong contender for the task of sending unique video URLs to each recipient. I am also well-versed in CSV handling and logging which is vital for smooth operations. When it comes to data management, quality of work and scalability, I have always thrived at it. My ability to batch process files efficiently is proven by my successful track record in building SaaS products including multi-tenancy capabilities with subscription billing - qualities that will be highlighted in the first two scripts. Moreover, within the context of your project I can apply my understanding of rate limiting to ensure delivery limits are never exceeded while still ensuring fast script execution that would efficiently handle even the largest datasets (50k+). To provide an insightful time and cost estimate, while maintaining high standards of transparency, I would require some more specific details on expectations beyond what is mentioned here but nevertheless rest assured that deadlines are sacrosanct to me.

@pinkeegupta

Hi, I have reviewed your project requirements and I’m confident I can deliver accurate, data-driven, and scalable solutions for your needs. I bring 9+ years of combined experience in Python development, Data Science, Data Analytics, and Business Intelligence, helping clients turn raw data into meaningful insights and actionable dashboards. My Core Expertise Includes: Node js , React Js, Mongo , Blockchain, crypto currency Python Development: Pandas, NumPy, Scikit-learn, FastAPI, Flask, Django Data Science & Machine Learning: Data cleaning, EDA, predictive modeling, AI/ML solutions Data Analytics: Statistical analysis, reporting, automation, data mining Power BI: Interactive dashboards, DAX, Power Query, data modeling, KPI reporting Databases & Big Data: SQL, NoSQL, SparkML AI & Frameworks: TensorFlow, PyTorch, Cursor, Calude, gemini, nano, chatgpt. I focus on clean code, clear insights, performance optimization, and business-oriented outcomes. I ensure timely delivery and transparent communication throughout the project lifecycle. Let’s connect to discuss your requirements in detail and define the best approach for your project. Looking forward to working with you. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@hr157

Hi, With strong experience in **Python automation, FFmpeg pipelines, AWS, and API integrations**, I can deliver a **robust, end-to-end system**. ### **My Approach** **Script 1 — Video Personaliser** - FFmpeg batch processing with parallel workers (multiprocessing) - Efficient text overlay (name/number) - Optimized encoding to balance speed + quality - Output: `{mobile}.mp4` **Script 2 — AWS S3 Uploader** - boto3 with parallel uploads + retry handling - CloudFront-ready URLs - Auto-generate dispatch CSV: `number,url` **Script 3 — WhatsApp Sender** - API integration (Gupshup / Interakt / Baileys as per your setup) - Rate limiting + queue system - Retry logic for failed sends - Delivery logging: sent / failed / pending ### **Key Features** - Handles **50K+ records reliably** - Logging + resume capability (no reprocessing on failure) - Clean modular scripts (easy to maintain) ### **Timeline** - Script 1: 4–5 days - Script 2: 2–3 days - Script 3: 4–5 days - Testing + demo: 2–3 days **Total: ~12–15 days** ### **Cost Breakdown** - Video Personaliser: ₹50K - S3 Uploader: ₹25K - WhatsApp Sender: ₹50K (Flexible within your budget) ### **Deliverables** - 3 fully working scripts (well-commented) - Non-technical README - Demo with 10 numbers end-to-end - 15 days post-support ### **Why me** - Experience with **FFmpeg automation + large-scale processing** - Strong AWS + API integration background - Focus on **stability, retries, and real-world reliability**

@MrBimbola

As an experienced Full-Stack Developer, and Python expert I have a substantial working knowledge of the tech stack required for your project. I'm adept with FFmpeg for video processing, AWS S3 using boto3 for file management, and WhatsApp API integration. Having developed customized systems for real-time geospatial dashboards and databases using Python, SQL, and Node.js, I assure you that I can handle not just the data processing tasks but also the system scalability required for over 50,000 files. I've tackled similar automation projects before too. To cite a few examples, I performed satellite image processing and analysis, including land classification and forest monitoring using GIS tools like ArcGIS/QGIS which trained me to tactfully handle large volumes of diverse data. Additionally, my solutions with Google Earth Engine demonstrate my expertise in managing extensive geospatial datasets while prioritizing performance. Regarding your budget and timeline estimates, we can discuss those details based on the specific needs tailored to your project goals. I aim to build long-lasting professional relationships by ensuring customer satisfaction. That’s why I offer a generous 15-day post-delivery support window for any bugs you may experience. Take this opportunity to benefit from my blend of broad skill set and earn a personalized solution that aligns perfectly with your unique requirements.

@mobasherreza10

Hi there, I noticed you need three Python scripts for a personalised WhatsApp video campaign system: Script 1 to overlay names/numbers on a base MP4 using FFmpeg (batch processing 50,000+ files), Script 2 to upload to AWS S3 (boto3) and generate a dispatch CSV with public URLs, and Script 3 to send each video URL via WhatsApp API (Gupshup/Interakt/WPPConnect) with rate limiting, retries, and logging. I have extensive experience with FFmpeg for bulk video processing, AWS S3 uploads, and WhatsApp Business API integrations, including a recent project where I sent 10,000 personalised video messages for a political campaign. I can deliver all 3 scripts with a README and a working demo for 10 samples. My estimated timeline is 12 to 14 days. Please share your WhatsApp API provider and a sample CSV. Best regards, Mobasher Reza

@ModernTechno442

As a reliable, experienced and qualified Web Developer with an impressive 7 years in the industry, I have successfully completed numerous projects that encompass your exacting requirements. Most notably are API integration projects and WhatsApp messaging implementations. What's more, my competency in JavaScript and Python perfectly aligns with the project's backend requirements. In fact, I've handled projects similar to Part A of this offering where I developed video batching processors that could efficiently process large numbers of files like you currently require. When it comes to building web dashboards (like the one highlighted in Part B), my portfolio speaks volumes. Having had ample experience crafting professional, clean UIs using React or HTML + Bootstrap, your platform will be no exception. Notably, security is paramount for this project, and as such, my expertise in secure authentication aligns perfectly with your need for a login page that supports multiple roles. In addition to delivering a fully functional 5-page web dashboard and backend scripts, deploying them on your server and providing bug support post-login should the unpredictable happen – I'm also ready to negotiate a budget-friendly offer-without compromising on quality- and deliver within the given timeline. And don't worry about code ownership; all my codes are strictly proprietary once delivered and Payment Complete. Choose me as your freelancer for an undeniably satisfying professional experience!