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Based on 45,700 client reviews
Kishan C.

Mohali, India

$15/hr
4.9
56 jobs

I build Python backends and the AI features that run on them. Most of the AI work I get pulled in to fix has the same story: it was built as a demo, and it broke the first time it met production traffic, live data, or a real bill. I work the other way around — backend first, then the AI wired in properly. Backend and APIs This is the core of what I do. REST APIs in Django and FastAPI, built to handle production traffic rather than just pass a quick test. Auth with JWT and OAuth, payments through Stripe and Razorpay, PostgreSQL and MongoDB schema design and indexing, and background jobs on Celery and Redis. With third-party integrations, I handle the part most people skip: what the system does when the external service is slow, down, or returning errors. GenAI integration On the deeper end, I build agentic systems in LangChain and LangGraph: custom tools, multiple agents working together, and proper memory and context handling across a workflow, with tool calls connected to the actual backend. On the everyday end, that's chatbots, content generation, automation, and retrieval over a client's own data (RAG) where it fits. I work across OpenAI, Claude, and Gemini, and I trace LLM calls and track token spend, because in production the cost matters as much as the output. What I care about is that the AI sits on a solid system — auth, a database, error handling, retries — so it behaves like a feature, not a science project. Deployment I deploy what I build. Docker, AWS or DigitalOcean, so the work goes out live and running, not handed over as a folder of code someone else has to figure out. How I work I ask questions before I write anything, because the wrong assumption early gets expensive later. I deal with edge cases instead of hoping they won't show up. I keep the code clean enough for the next person to read, I reply quickly, and I hit the dates I commit to. Industries I've worked in: e-commerce, SaaS, education, logistics, and internal tools. If you need a backend you can rely on — a new build, a broken system that needs sorting, or AI features that have to hold up in production — send me the details and I'll tell you how I'd approach it.

  • Python
  • Django
  • FastAPI
  • Flask
  • Back-End Development
  • API Development
  • RESTful API
  • API Integration
  • LangChain
  • OpenAI API
  • Retrieval Augmented Generation
  • AI Agent Development
  • Chatbot Development
  • Generative AI
  • PostgreSQL
  • MongoDB
  • Celery
  • Redis
  • Docker
  • Amazon Web Services
Shahab Y.

Islamabad, Pakistan

$28/hr
5.0
4 jobs

Data Scientist | AI & ML Engineer | Data Analyst | Python | SQL | Power BI | LLM & RAG Hi, I'm Shahab 👋 Most businesses are sitting on data they're not using and drowning in manual work they shouldn't be touching. I build the machine learning models, AI applications and dashboards that fix both and I make sure they actually ship, not just sit in a notebook. Over the past 5+ years I've helped companies turn messy data and repetitive workflows into predictive models, LLM-powered tools, and BI dashboards their teams actually use to make decisions. 🔧 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱: - Data analysis & exploration, turning messy raw data into clear answers and insights - Statistical analysis & A/B testing, hypothesis testing, significance, and confidence behind your decisions - Data visualization & Power BI dashboards, reports non-technical stakeholders actually understand - Predictive & forecasting models, churn, demand, pricing, classification - AI assistants and chatbots powered by LLMs (OpenAI, Hugging Face) - RAG systems that let a model answer from YOUR documents and data - Power BI dashboards that turn raw data into clear, decision-ready reporting - Python automation that removes hours of manual work every week - End-to-end data pipelines cleaning, processing, deployment 🛠️ 𝗠𝘆 𝗧𝗼𝗼𝗹𝗸𝗶𝘁: - 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀: Python, Pandas, NumPy, R, RStudio, SQL, Excel - 𝗦𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝘀: SciPy, statsmodels, hypothesis testing, regression, A/B testing - 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴: Scikit-Learn, TensorFlow, PyTorch, XGBoost - 𝗟𝗟𝗠𝘀 & 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜: LangChain, RAG, Vector DBs, OpenAI, Hugging Face, AI Agents - 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 & 𝗕𝗜: Power BI, Plotly, Matplotlib, Seaborn - 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: FastAPI, REST APIs, Docker, AWS, Streamlit, Git/GitHub Whether it's a machine learning model, an AI chatbot, a RAG application, a Power BI dashboard, or an automation that buys back your week send me a message or invite me to your job. Tell me the problem you're trying to solve and I'll tell you the best way.

  • Python
  • Cloud Computing
  • Machine Learning
  • SQL
  • Data Science
  • Deep Learning
  • Data Analysis
  • Data Visualization
  • Data Analytics
  • Generative AI
  • Large Language Model
  • Machine Learning Model
  • Neural Network
  • Regression Analysis
  • Statistical Analysis
  • Classification
  • Natural Language Processing
  • Chatbot Development
  • AI Model Development
  • RStudio
Vitaliy A.

Shevchenkove, Ukraine

$45/hr
5.0
107 jobs

🦾 AI-powered solutions. OpenAI integrations. Machine learning capabilities. Business automation. 🧩 Requirements call required. 🛑 No small fixes projects – sorry, guys. I’m an AI Developer and Open AI developer with 13+ years of experience in SaaS products, automation systems, backend platforms, and business tools. My work combines practical AI Integration, scalable architecture, Python developer expertise, JavaScript, and strong product thinking. As an AI Developer, I help clients build internal tools, dashboards, chatbots, AI Langchain workflows, data platforms, web applications, and automation systems. I also work as a Python Django developer when projects need secure APIs, admin panels, user roles, CRM connections, database logic, and stable backend architecture. My stack includes Python, Django, React, JavaScript, REST APIs, PostgreSQL, Docker, OpenAI, Claude, LangChain, vector databases, Zapier, Airtable, n8n, make com, Slack, Google Workspace, and third-party API connections. 💼 Why Work With Me? I don’t just write code — I build systems that solve real business problems. As an AI Developer and Agentic AI Developer, I focus on clean workflows, reliable outputs, automation logic, and product usability. For AI Integration, I connect models with your real data, users, tools, and business processes. This includes AI API Integration, Airtable Integration, chatbots, copilots, document processing, customer support automation, reporting systems, knowledge bases, and smart assistants connected to CRMs, databases, files, and APIs. As a Python developer, I build scalable backend systems with clear structure, secure permissions, optimized databases, background jobs, and clean admin logic. I also support Python developer web scraping, data processing, automation scripts, API integrations, reporting workflows, and ML-related pipelines. On the frontend side, I use JavaScript to build dashboards, admin portals, SaaS interfaces, internal tools, analytics screens, and API-driven product flows that are simple for real users. 💻 Development Expertise AI Developer services: smart assistants, workflow agents, SaaS tools, AI Developer zapier workflows, document analysis, recommendation logic, and business copilots. AI Integration Specialist work: OpenAI, Claude, vector search, Airtable, CRMs, internal databases, n8n, make com, Slack, Stripe, and custom APIs. Python developer work: backend logic, automation, data pipelines, scraping, reporting, API services, background workers, integrations, and analytics. Python Django developer work: SaaS backends, admin panels, authentication, permissions, dashboards, REST APIs, PostgreSQL, Celery, Redis, and secure architecture. JavaScript: React interfaces, dynamic web apps, dashboards, interactive workflows, API-driven screens, and modern frontend development. Machine Learning: NLP, LLM workflows, predictive analytics, AI Machine Learning features, recommendations, classification logic, and business intelligence. 🧠 Use Cases I Can Build AI Developer Langchain projects for SaaS startups, agencies, internal teams, marketplaces, fintech, real estate, operations, and e-commerce. AI Integration for customer support, sales, operations, research, reporting, content workflows, document automation, and internal knowledge systems. Python developer geospatial solutions, Python Full stack platforms, Python AI developer tools, data scientist workflows, web scraping systems, and API Integration pipelines. Full stack developer support for web developer tasks, backend architecture, frontend delivery, automation, dashboards, and production-ready product development. 🔧 How I Approach Projects First, I clarify your goals, process, users, data, integrations, and business priorities. Then I design a practical architecture and build step by step, with attention to reliability, security, performance, and future scaling. For AI Integration, I focus on prompt quality, context structure, data sources, fallback logic, logging, testing, and human review. A strong AI Integration is not just a model call; it is a complete workflow that fits your business. I can also join projects at different stages: early MVP planning, rebuilding legacy workflows, improving existing AI tools, or scaling a working platform. My focus is always on practical delivery, clear communication, clean code, and measurable business value. I’m comfortable working with founders, agencies, product teams, and non-technical clients who need a reliable technical partner, not just a coder. I can help define the MVP scope, choose the right stack, estimate the effort, and then build the product step by step with demos, feedback loops, and stable deployment. If you need a reliable AI Developer who can combine AI Integration, Python developer expertise, JavaScript, Machine Learning, web developer experience, and full-cycle delivery, I can help you build and launch a product that works.

  • Python
  • AI Agent Development
  • AI Development
  • OpenAI API
  • n8n
  • Make.com
  • API Integration
  • Automation
  • Software Architecture & Design
  • Machine Learning
  • Natural Language Processing
  • ChatGPT API
  • AI Implementation
  • Computer Vision
  • Node.js
  • RESTful API
  • Artificial Intelligence
  • JavaScript
  • Software Development
  • React
Ezekiel A.

Sango, Nigeria

$15/hr
5.0
7 jobs

I build AI automation systems using Claude AI, n8n, Make com, GoHighLevel, AI Agents, and API integrations to automate lead qualification, customer support, appointment booking, and business operations. So, what if your business could run workflows, close leads, and deliver results, automatically, while you sleep? Most businesses today are drowning in repetitive tasks, disconnected tools, and manual processes that quietly kill productivity and revenue. You're managing CRMs, juggling APIs, firing up spreadsheets, babysitting ad campaigns and none of it talks to each other. That's not a software problem. That's a system problem. And it's costing you time, money, and scale. That's where I come in. I'm Ezekiel, an AI Automation Expert specializing in building intelligent, end to end automation systems that connect your tools, eliminate manual work, and let your business grow on autopilot. From AI agent development and LLM prompt engineering to full stack CRM automation and business process automation. I design workflows that are fast, reliable, and built to scale. Here's how I help you work smarter: ⚙️ Automation Architecture — custom automated workflows built with Make com, n8n, and Zapier tailored to your exact business logic 🤖 AI Agent Development — intelligent AI agents powered by Claude AI and leading LLMs to handle decisions, responses, and actions autonomously 🔗 API Integration — seamless connection between your platforms, databases, and third party tools through robust API integration 🎯 CRM & GoHighLevel Automation — full HighLevel CRM automation including pipelines, follow ups, lead nurturing, and client onboarding 🚀 Marketing & Lead Generation Automation — automated lead generation, social media marketing automation, and campaign workflows that run without you 📋 Data Scraping & Google Sheets Automation — structured data pipelines, web scraping systems, and real time Google Sheets automation 🐍 Python Development — custom scripts and automation logic for complex, high volume business process automation 💡 Prompt Engineering & LLM Optimization — precision LLM prompt engineering that makes your AI tools smarter, faster, and more cost efficient I don't build generic automations. Every system I create is mapped to your specific business processes, tech stack, and growth goals, whether you're a SaaS startup, agency, ecommerce brand, or enterprise team. My focus is always ROI: fewer manual hours, faster response times, higher conversion rates, and scalable operations. Think of me as your long term automation partner, someone who understands AI development, knows the tools inside out, and consistently delivers systems that give your business a real competitive edge. If you're ready to stop doing manually what a machine can do better, send me a message and let's build something powerful together. KEY SKILLS: AI automation expert, Make com, n8n, Zapier, Claude AI, OpenClaw, API integration, GoHighLevel, HighLevel CRM automation, Python, AI agent development, prompt engineering, LLM prompt engineering, marketing automation, CRM automation, business process automation, lead generation, data scraping, social media marketing automation, Google Sheets automation, automated workflow, AI development.

  • Python
  • Automation
  • Make.com
  • n8n
  • Zapier
  • Claude
  • API
  • API Integration
  • Artificial Intelligence
  • JavaScript
  • Node.js
  • AI Agent Development
  • Prompt Engineering
  • LLM Prompt Engineering
  • Marketing Automation
  • CRM Automation
  • Business Process Automation
  • System Automation
  • Automated Workflow
  • Project Workflows
Pavel O.

Berlin, Germany

$39/hr
4.8
128 jobs

💼 Python Developer | Python Django | Python Web Scraping | Python Full Stack Developer | Python AI | Python Automation 🏆 TOP RATED PLUS | 💰 $5M+ Client Revenue | 💼 111+ Projects Delivered | ✅ 11,000+ Upwork Hours 💡 Clients Achieved: 🚀 Raised $4.9M+ / $9.4M+ / $6M+ after product development 📈 Scaled platforms to millions of users & billions of operations ⚡ Reduced system load & response time with optimized Python architectures 💰 Automated payments, workflows, and analytics → higher ROI & efficiency 🏥 Built secure, compliant systems (HIPAA, GDPR) used by global organizations I am a Python Developer, Python Full Stack Developer, Python AI Developer, and Python AI Engineer with 10+ years of experience building scalable web platforms, SaaS products, AI systems, and high-performance backend architectures. As a Python Developer, I specialize in designing clean architecture, scalable systems, performance optimization, and production-ready solutions that support real business growth. I work as a Python Full Stack Developer (Python + React / Next.js), combining powerful backend engineering with modern frontend development to deliver complete end-to-end applications. My expertise includes Python Django development, Flask development, and FastAPI development, building robust APIs, microservices, and distributed systems. I am also a Python Automation Engineer and Python Web Scraping Specialist, building intelligent automation systems, data extraction pipelines, and large-scale Python web scraping solutions for business intelligence, analytics, and AI-driven data processing. I design reliable scraping architectures that handle complex, high-volume data at scale. As a Python AI Developer, I build AI-powered applications, NLP systems, automation workflows, and data-driven intelligent platforms integrated with modern Python frameworks and cloud infrastructure. ⚡ Core Expertise as a Python Developer Python Full Stack Development (Python + React / Next.js) Python Django Developer, Flask Developer, FastAPI Developer Python AI Development & Machine Learning Integration Python Automation Engineering for business workflows Python Web Scraping & Data Extraction Systems Scalable backend systems, APIs, and microservices Cloud & DevOps (AWS, Docker, CI/CD pipelines) High-performance, production-grade Python systems 🚀 Selected Projects The Skills ($4.9M raised) 🎓 – Built and scaled an e-learning platform with payments, subscriptions, and mobile apps. As a Python Developer, helped launch a product used by thousands of users worldwide. Veeqo (acquired by Amazon) 📦 – Developed retail infrastructure processing £1B+ in orders. Optimized backend performance, integrated Stripe, and reduced server load using AWS Lambda as a Python Developer. Creyos (75K+ users, healthcare) 🏥 – Built a HIPAA-compliant cognitive assessment platform used by global research institutions. As a Python Developer, worked on secure data systems, scaling, and performance. CityFALCON ($6M raised) 📊 – Created a real-time NLP-powered financial news platform processing millions of articles daily. Designed scalable backend architecture as a Python Developer. ⚡ What I Deliver as a Python Developer Clean, scalable Python AI systems and backend architectures High-performance Python Django / Flask / FastAPI applications Python Full Stack Development (React / Next.js integration) Python Automation & Python Web Scraping solutions AI-powered Python applications and intelligent workflows Secure, compliant systems (GDPR, HIPAA-ready architectures) End-to-end product delivery from idea to production Client Testimonials ⭐⭐⭐⭐⭐ “Very professional! Pleasure to work with. Will definitely use again.” ⭐⭐⭐⭐⭐ “Super reliable, fast, and with clean, well-structured code. Communication was smooth and always on time.” ⭐⭐⭐⭐⭐ “Very satisfied with the work.” 💼 Why Clients Work With Me 10+ years of proven experience as a Python Developer Strong expertise in Python Full Stack, Python AI, and Python Web Scraping Ability to scale systems from MVP to enterprise-level platforms Deep understanding of backend architecture and system design Reliable communication and predictable delivery 🚀 Let’s talk about your project - I am available as your Python Developer, Python Full Stack Developer AI React, Python AI Developer, Python Automation Engineer, Python Django Developer, and Python Web Scraping Specialist.

  • Python
  • Python Script
  • Data Scraping
  • Automation
  • Artificial Intelligence
  • Machine Learning
  • Deep Learning
  • Scripting
  • Data Extraction
  • Chatbot Development
  • FastAPI
  • Back-End Development
  • Django
  • PostgreSQL
  • JavaScript
  • Flask
  • API
  • React
  • jQuery
  • Docker
Matthew S.

Spotsylvania Courthouse, Virginia

$95/hr
5.0
2 jobs

I build AI systems that run on their own: autonomous agents and automation pipelines that do real work from end to end, not just demos. They pull in live data, make decisions with an LLM, take actions (send email, take payment, file documents, update records), and keep running unattended on a schedule, with the error-handling and safety to do that without someone watching. Here's what I bring that a lot of AI builders don't. I've worked in software and data for 23 years, most of it in enterprise delivery and data governance, including running a $400M government services contract. So I build for reliability, not novelty. Anything that has to be correct (money math, business rules) lives in plain, tested code, and the LLM advises only where judgment actually helps. Everything is idempotent, test-gated, and observable. A few recent builds: • An autonomous outbound system that finds prospects, sends compliant outreach, handles the replies, and takes payment through Stripe. The operator just reads a daily digest. (10/10 deliverability, ~83 automated tests.) • A business-process pipeline that turns an inbox full of documents into structured records and a live report, with zero manual data entry. • An AI document-generation engine that drafts proposals, RFP responses, and other business documents, with a human approving every send. • A real-time data and analytics platform over a 462,000-row dataset, validated with pre-registered statistical testing. The stack is mostly Python, with Claude and Grok doing the LLM work, kept deliberately small and boring: SQLite or Postgres, systemd, Google Workspace, Stripe, plus RAG and multi-agent orchestration where they earn their place. If you've got a workflow that's repetitive, data-heavy, or begging to be automated, tell me what it looks like. I'll tell you straight whether AI is the right tool and how I'd build it.

  • Artificial Intelligence
  • Machine Learning
  • Analytical Presentation
  • Software QA
  • Information Analysis
  • Machine Learning Model
  • Beta Testing
  • Alpha Testing
  • Data Analysis

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