You will get Create, fix, or optimize a Python script for any task or workflow
Project details
Need a fast, reliable Python script? I write, fix, and optimize Python code for performance — turning slow scripts into clean, efficient solutions that scale.
✅ What makes my service different:
• 889+ hours on Upwork, 100% Job Success
• 5+ years writing production Python code
• Performance-first approach — profiling, benchmarking, and measurable speed gains
• Clean, modular, well-documented code you can maintain
• Honest feasibility check before you order
🔹 What I do:
• Write new Python scripts optimized for speed and memory from day one
• Fix bugs, errors, and unexpected behavior in existing code
• Profile slow scripts and apply targeted optimizations (cProfile, line_profiler, memory_profiler)
• Refactor messy code into clean, fast, maintainable structure
• Convert sync code to async/multiprocessing for major speed gains
• Optimize database queries, file I/O, API calls, and data processing
🔹 Common use cases:
File processing, Excel/CSV automation, API integration, PDF handling, image processing, scheduled tasks, ETL, data cleaning, report generation.
📩 Share your task or existing code — I'll review and confirm scope before you order.
✅ What makes my service different:
• 889+ hours on Upwork, 100% Job Success
• 5+ years writing production Python code
• Performance-first approach — profiling, benchmarking, and measurable speed gains
• Clean, modular, well-documented code you can maintain
• Honest feasibility check before you order
🔹 What I do:
• Write new Python scripts optimized for speed and memory from day one
• Fix bugs, errors, and unexpected behavior in existing code
• Profile slow scripts and apply targeted optimizations (cProfile, line_profiler, memory_profiler)
• Refactor messy code into clean, fast, maintainable structure
• Convert sync code to async/multiprocessing for major speed gains
• Optimize database queries, file I/O, API calls, and data processing
🔹 Common use cases:
File processing, Excel/CSV automation, API integration, PDF handling, image processing, scheduled tasks, ETL, data cleaning, report generation.
📩 Share your task or existing code — I'll review and confirm scope before you order.
Programming Languages
HTML & CSS, JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$50
|
Standard
$120
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages Mined/Scraped | 100 | 1000 | 10000 |
Install Script | |||
Test Script | |||
Task Automation |
Optional add-ons
You can add these on the next page.
Additional Revision
+$5Frequently asked questions
11 reviews
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This project doesn't have any reviews.
HM
Heghine M.
Apr 14, 2026
Python developer needed
thanks
MT
Michael T.
Jan 16, 2026
Optimize and finalize Google Analytics 4 → FastAPI → Power BI data connector
The solution which has been created is not working.
MC
Maria C.
Oct 30, 2025
Web scraping
Unfortunately, my experience working with this freelancer was disappointing.
We initially agreed on a fixed price for the project, and I later opened an hourly contract under the assumption that the number of logged hours would match the agreed fixed amount. However, the freelancer logged significantly more hours than what was discussed, effectively exceeding the original agreement.
We initially agreed on a fixed price for the project, and I later opened an hourly contract under the assumption that the number of logged hours would match the agreed fixed amount. However, the freelancer logged significantly more hours than what was discussed, effectively exceeding the original agreement.
RP
Raghu P.
Oct 13, 2025
HLS to RTSP Conversion Python Script modification
Great work done again. Fast solution delivered, thanks
RP
Raghu P.
Oct 13, 2025
FastAPI API Development for HLS to RTSP Conversion
Excellent work, thanks for quick solution
About Shahidul Ahad
Python Developer | FastAPI, Django, Web Scraping & AI Automation
100%
Job Success
Rangpur, Bangladesh - 10:25 am local time
⭐ 889+ hours billed on Upwork across 19 successful projects
⭐ Backend systems handling millions of records with PostgreSQL, Redis & Docker
⭐ Data scraping for JavaScript-heavy sites and dynamic content
⭐ AI-powered automation with OpenAI, Claude, LangChain & LangGraph
⭐ Clean, tested, production-ready code
🔹 What I build for clients:
- High-performance REST & async APIs with FastAPI, Django, and Flask
- Web scraping & data extraction with Selenium, Scrapy, Playwright, BeautifulSoup
- Automation bots for data collection, workflow, messaging, and desktop tasks
- AI agents & LLM workflows with LangChain, LangGraph, OpenAI, and Claude
- ETL pipelines with PostgreSQL, MySQL, Redis, and Celery
- Dockerized deployments with CI/CD on AWS, Render, and DigitalOcean
- Secure authentication with JWT, OAuth2, and role-based access control
🔹 Python Backend Development
I design backend architectures that handle real workloads — microservices with FastAPI and Django, async PostgreSQL queries, Celery + Redis for background jobs, and RabbitMQ for distributed tasks. I build APIs that integrate cleanly with third-party services (Stripe, Twilio, OpenAI, Google APIs) and deploy them with Docker and Nginx for fault-tolerant production environments.
🔹 Web Scraping & Data Extraction
I build Python scrapers that handle complex sites — dynamic React/Vue/Angular content, authenticated sessions, and public REST/GraphQL APIs. I work with both browser automation (Selenium, Playwright) and pure HTTP scrapers (Scrapy, Requests) depending on what the target source needs. Data is cleaned, validated, and delivered in CSV, JSON, Excel, or directly to your database. I only work with public data or sources you have authorization to access.
🔹 AI Automation & LLM Integration
I build production-grade AI systems using LangChain, LangGraph, and Langfuse — from simple LLM workflows to multi-agent systems with tool use, memory, and state management. I integrate OpenAI, Claude, and other LLM APIs for text parsing, data enrichment, classification, summarization, and intelligent agents. I build RAG systems with vector databases (Pinecone, Chroma, pgvector), prompt pipelines, and AI-powered ETL flows that turn unstructured data into structured business insights. With Langfuse, I add full observability — tracing, evaluation, and cost monitoring for every LLM call in production.
🔹 Selected Projects
- AI-Powered Job Data Pipeline — Async FastAPI ETL ingesting XML feeds, AI enrichment, syncing to external APIs via Docker
- Script Marketplace Platform — FastAPI + Docker SDK platform running isolated bot containers with task scheduling and live monitoring
- Browser Automation Desktop App — Tkinter-based tool with advanced Selenium logic, session handling, and modular UI
- Multi-Tenant E-Commerce ERP — Django + gRPC + Stripe + PostgreSQL with real-time order tracking
- Financial Intelligence Dashboard — Python Dash analytics platform for structured financial data
- PyQt5 WhatsApp Automation — Desktop messaging automation with a polished GUI
- HLS to RTSP Conversion API — FastAPI service for live video stream conversion
🔹 Frontend (when needed)
I focus on Python backend, but I can build clean, functional UIs in React, HTML, CSS, and JavaScript when a project needs an integrated frontend — so you don't have to hire two people for one workflow.
🔹 How I work
✓ Agile development with Git, GitHub, and Jira
✓ Clear daily communication and status updates
✓ Clean, modular code with proper testing and documentation
✓ Honest timelines — I tell you what's realistic, not what you want to hear
✓ Post-delivery support and revisions included
💬 Send me a message with your project details — I respond within a few hours and I'm happy to review your requirements before you commit to anything.
Steps for completing your project
After purchasing the project, send requirements so Shahidul Ahad can start the project.
Delivery time starts when Shahidul Ahad receives requirements from you.
Shahidul Ahad works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement review & profiling
I review your task or existing code, run profiling tools (cProfile, line_profiler) on slow scripts to identify bottlenecks, and confirm exact scope before writing any code.
Script development or optimization
I write clean, modular Python with performance in mind — efficient algorithms, proper data structures, and the right libraries for the job. For optimization, I target the bottlenecks first.