Greetings.... I would like to introduce myself as development freak who always love to work with Microsoft based technologies and its associated frameworks i am always in love to the code and development . My Area of expertise includes: *Frontend:* AngularJS, Vue JS, WordPress, ReactJS/Redux, Bootstrap, JavaScript, TypeScript, jQuery, Ajax, HTML5, Material UI, TailwaindCSS. *Backend:* NodeJS, ExpressJS, PHP, Laravel, CakePHP, Yii, Codeigniter, WordPress, WHMCS, Python, Ninja trading, Django, Flask, RESTful API, GraphQL *Mobile App:* React-Native, Xamarin, Ionic, Flutter, Apache iOS & Android. *Database:* MongoDB, PostgreSQL, MongoDB, MySQL. *Designing:* UI/UX, Photoshop, Adobe XD, Adobe Illustrator, Corel Draw. *Python |AI |Machine Learning | Trading Nopcommerce/Asp.net/MVC/Winform/WPF/Entity Freamework/Angular js/Umbraco DDEX/Dapper/Spotify Umbraco Xamarin React Nopcommerce Python, Django, AI, Machine Learning HTML5/CSS3/BOOTSTRAP3 C#, Azure, AWS JavaScript/Node js Mysql/MongoDB/SQLite WordPress, PHP, Javascript, Jquery Python (web-scrapping, Ai, Agentic AI) Server setup Penetration Testing (VAPT) Mobile App development (Xamarin/ React Native/ Native script/ Flutter/ Kotlin ) No project is too small or too large for us. If you value high-quality work, then you would love to work with us. Thanks Jitender D.

✔ 13+ Years of hands on experience in Software testing (Manual, Automation, API & Mobile app) ✔ Worked as a full time employee for around 10 years and since then 100% into freelancing. ✔ Expertise in all types of testing - Smoke, Sanity, Functional, Integration, Regression, System, Compatibility (OS/Browser), Internationalisation, User acceptance Testing (UAT), Load & Performance Testing. ✔ Around 05 years of Wordpress Website Testing experience. ✔ Vast experience in creation of Test Plan, Test Strategy, Test Bed Setups, Test Cases Designing , Test Execution, Test Result Reports, Root Cause Analysis reports and Matrices ✔ Good experience in Test case execution across all the environments -QA/STAGE/PROD ✔ Reporting Defects , Root Cause Analysis(RCA) of the defects found, Planning Bug Triage Meetings and assisting developers in defect analysis/reproducing. ✔ Test Environment creation - Creating test data for both Manual and Automation test script across QA/STAGE or PROD environments. ✔ People/Team management - Help team in Task Review, Task Allocation, Estimations, Tracking QA deliverables & Collaboration with both Development & Product Owners. ✔ Client Communication - Weekly/Daily/Monthly Status Reports, Planning Team/Sprint Planning Meetings ✔ Expert with Agile/Scrum Process - Certified Scrum Master (CSM), Good experience working in Scrum Teams, User Stories, Story Points, Acceptance Criteria's, Daily Standup/Sprint Planning/ Demo/Retrospective Meetings. Tools (Defect Tracking, Test Case Management & Others) --------------------------------------------------------------------- ✔ JIRA, Trello,JIRA -Zephyr, HP-ALM,Pivotal Tracker, Redmine, HipTest,Mantis & Bugzilla ✔ Bitbucket, GitHub, GIT, Jenkins, Cygwin ✔ BrowserStack, Firebug, PageSpeed Database ----------- ✔ PostgreSQL, MySQL, MS-SQL ✔ Good experience with SQL and DB testing API Testing -------------- ✔ Good experience in testing API's using tools like Postman,Swagger. ✔ API Automation using REST Assured, Postman, Karate, Jmeter & SoapUI Web & Mobile Automation -------------------------------- ✔ 6+ Years of experience in Web Automation using Selenium Web-drivers ( Java & C #) along with TestNG framework & Serenity with Cucumber (BDD). ✔ 2+ Years of experience in Mobile automation using Appium ( Java) ✔ Expert in analysing and setting up automation frameworks( Keyword & Data driven) Load & Performance Testing ---------------------------------- ✔ Load & Performance Testing using tools like Jmeter, BlazeMeter. Mobile(Native app) Testing --------------------------------- ✔ Native Apps testing on Android and iOS platforms Domain Experience ------------------------ ✔ Healthcare, E-Commerce, Social networking, Online Survey's , Lifestyle, SAAS, Travel websites, ERP & Cloud Applications. Online and Classroom Trainings --------------------------------------- ✔ Agile - Scrum Trainer (Online and Classroom training) ✔ HP-ALM - Online and Classroom Training ✔ JIRA-Agile - Online and Classroom Training ✔ Manual Software Testing - Online and Classroom Training ✔ Selenium with Web drivers - Online and Classroom Training Additional Achievements ------------------------------- ✔ Certified Scrum Master - Scrum coach ✔ JIRA Administration Experience - Can help in Setting up JIRA from scratch to configuring complex Workflows & Schemas. ✔ 3 Years of Project Management experience ✔ Ability to work under pressure, prioritise and multi-task efficiently in a team or independently. ✔ Available 40 hrs/week or more if required.

Want an AI tool or Full-stack application built right the first time? Let's talk. Most software development projects fail or require an expensive complete rewrite within 6 months because they were built on fragile architecture. I build production-ready, scalable web applications with clean, maintainable code designed to grow with your business. As a Top Rated Full Stack Engineer with over 8 years of experience and $100K+ earned on Upwork, I bridge the gap between complex Full-stack architecture and real business value. --- 🚀 Core Specialized Expertise * AI Integration & Automation: Custom AI Assistants, ChatGPT/OpenAI API integration, LLM fine-tuning, RAG pipelines, and automated multi-tenant AI platforms. * Full Stack Web Development: Expert-level Next.js, React.js, Node.js, Express, TypeScript, and MongoDB architecture for high-performance SaaS platforms. * Backend & API Engineering: Robust RESTful APIs, database design (MongoDB, PostgreSQL, Supabase), and secure serverless architectures. * Frontend UI & Performance: Building pixel-perfect, highly responsive user interfaces utilizing modern state management (Redux, Context API) and clean CSS/Tailwind frameworks. --- 💼 Recent Featured Successes * Custom AI Assistant Platform: Engineered a secure, multi-tenant AI chatbot infrastructure handling high-volume user interactions. * Full-Stack SaaS MVP Development: Developed a comprehensive CRM and issue management module using the MERN stack from concept to launch on budget. * Scalable API Integrations: Architected backend systems to flawlessly sync high-traffic data streams and external third-party services. --- Why Tech Startups & Product Teams Hire Me: 1. No Technical Debt: I write clean, documented code that your next developer can easily jump into without scratching their head. 2. Business-First Mindset: I don't just take orders. I advise you on the most cost-effective architecture to achieve your product goals. 3. End-to-End Delivery: From MongoDB schema optimization to frontend React polish, I handle the entire lifecycle. Click the Message or Book a Consultation button on the right, and let's discuss your project requirements, timeline, and tech stack.

Hi! I'm a Python Developer from Bangladesh. I've completed my Diploma in Computer Technology. I've been working with Python for over 5 years, building useful software for others and expanding my knowledge. On the side, I code a bit in ASM and C. Here are a few key points about me: • I'm experienced in Python-Requests, Selenium, QT5, BS4, Flask, and SQL. • I can build GUI, multi-threaded, reliable and performant desktop/server applications. • Scalable and fault-proof backend application. • I've completed over 150 small to medium projects as a freelance developer since 2022.

Senior Software Engineer | Full-Stack Development & Cloud Solutions | Generative AI & blockchain Integrations Hi, I'm Saif. With 4+ years of experience, I specialize in building scalable, secure, and intelligent applications that power modern web, mobile, and AI-driven solutions. My expertise spans backend development, full-stack applications, AI integrations, and cloud deployments, ensuring your product is reliable, high-performing, and future-ready. 💡 What I Offer 🔹 Backend & API Development – High-performance REST APIs using Django, FastAPI, Node.js, and Express.js. 🔹 Full-Stack Applications – Modern, responsive interfaces with React.js, Next.js, and React Native integrated with powerful backends. 🔹 Automation & Workflow Optimization – Streamline repetitive processes using Python, Selenium, and n8n. From browser automation and data scraping to API orchestration and multi-step workflow automation, I create efficient systems that save time and resources. 🔹 Cloud Deployment & DevOps – Scalable deployments on AWS, DigitalOcean, Railway, Render, Netlify, and PythonAnywhere using Docker, CI/CD pipelines, container orchestration, and AWS serverless stack (Lambda, API Gateway, S3, CloudWatch). 🔹 Database Management – Expertise in PostgreSQL, MySQL, and MongoDB, with query optimization and multi-database strategies. 🔹 AI & Generative AI Integrations – LLM-powered chatbots, automation tools, and semantic search using OpenAI Agents SDK, LangChain, and vector databases. 🔹 Web3 & Blockchain – API integrations with Ethereum, Tron, etc for decentralized applications. 🔹 Third-Party Integrations – Payments (Stripe, PayPal), messaging APIs(Twilio, Mailgun, Mailtrap), and other external services. 🔹 Telegram Bot Development – Engaging, automated bots to enhance user interaction and workflows. 🌟 Why Work With Me? ✔ Client-Focused Approach – Clear communication, timely delivery, and solutions tailored to your business needs. ✔ Scalable & Secure Solutions – Applications built with best practices in authentication, authorization, and data security. ✔ Cross-Domain Expertise – From traditional web apps to AI-driven platforms and blockchain integrations. ✔ End-to-End Ownership – From idea to deployment, I handle the full cycle with clean, maintainable, and production-ready code. Best regards, Saif #BackendDevelopment #FullStackDevelopment #PythonDeveloper #JavaScriptDeveloper #Django #DjangoRESTFramework #FastAPI #NodeJS #ExpressJS #ReactJS #NextJS #ReactNative #RESTAPI #GraphQL #GenerativeAI #LLM #OpenAI #OpenAIAgents #LangChain #AIIntegration #AIChatbots #ConversationalAI #SemanticSearch #VectorDatabase #MachineLearning #NLP #PromptEngineering #Automation #PythonAutomation #WebAutomation #Selenium #SeleniumAutomation #BrowserAutomation #WebScraping #n8n #n8nAutomation #WorkflowAutomation #NoCodeAutomation #IntegrationAutomation #APIIntegration #DataAutomation #ZapierAlternative #Web3 #BlockchainDevelopment #Ethereum #Tron #SmartContracts #APIIntegration #Stripe #Twilio #PayPal #TelegramBot #TelegramAPI #Celery #Redis #RabbitMQ #AsynchronousProgramming #PostgreSQL #MySQL #MongoDB #DatabaseOptimization #MultiDatabase #Docker #DockerCompose #DevOps #CICD #AWS #DigitalOcean #CloudDeployment #ServerDeployment #SoftwareArchitecture #Microservices #ScalableSystems #APIsecurity

I help businesses automate workflows, build reliable APIs, and deploy scalable cloud applications. Whether you need custom Python APIs, serverless backend systems, or smart workflow automation using n8n, I design and deploy fast, stable, and maintainable solutions — optimized for performance, scalability, and cost efficiency. My Core Expertise • Backend Development: Python, FastAPI, Django, REST APIs, GraphQL • Automation & Workflows: n8n, custom integrations, data scraping, scripting • Cloud & DevOps: AWS (Lambda, API Gateway, CloudWatch), Docker, CI/CD pipelines • Web Applications: React, HTML5, CSS, JavaScript • Data Engineering: Web scraping, Selenium automation, ETL pipelines Recent Projects • Built an encrypted Flutter + Firebase chat app with role-based access • Automated booking and payments system with 99.9% uptime • Deployed multi-step n8n workflows for lead management and email automation • Developed custom bots that save 20+ hours/week in manual operations Why clients hire me Strong focus on automation, reliability, and cost-effective scaling Experience with AWS Serverless architecture & observability tools Proven record of on-time delivery and long-term maintainable systems Clear communication and proactive problem-solving Let’s connect to discuss how I can help you automate workflows, build resilient APIs, or launch your next scalable cloud app.

I build AI agents and automation systems that replace manual work — RAG chatbots, AI workflows, and API integrations that ship and run in production. Across 33 jobs and 900+ hours on Upwork I've built a testimonial-automation bot, a RAG chatbot trained on 1,600+ videos, and an AI deal-pipeline for real estate. What I do: • AI agents & RAG chatbots (OpenAI, Claude, LangChain) • Workflow automation (n8n, Make, Zapier) + custom Python • Web scraping & data extraction • API integrations & backend (FastAPI, Django, PostgreSQL) Message me or book a quick call — I'll tell you straight whether I can help and how I'd do it.

I am a Python Developer and Django Backend Engineer specializing in scalable web applications, automation systems, and data scraping solutions. With strong experience in Django, Django REST Framework, and REST API development, I build secure, production-ready backend systems designed for performance and scalability. 🔹 Backend & Web Application Development Custom Web Application Development Django & Django REST Framework REST API Development & API Integration SaaS Development PostgreSQL Optimization Celery & Redis Background Tasks Scalable Backend Architecture 🔹 Web Scraping & Automation (High-Demand Expertise) Web Scraping & Data Scraping Data Extraction & Data Mining Python Automation Scripts Selenium & Playwright Automation Bot Development Workflow Automation Systems Scraping Protected & Dynamic Websites I build reliable data pipelines that collect, clean, and structure large-scale data efficiently. 🔹 Blockchain & Web3 Development Blockchain Development Web3.py Applications Smart Contract Integration Ethereum & EVM Integrations Crypto Wallet Integration NFT Utilities & Token Logic On-chain / Off-chain Backend Systems 🔹 Applied AI Engineering OpenAI API Integration LLM Integration AI Automation Systems RAG Applications AI-Powered Web Applications Intelligent Document Processing Why Clients Work With Me Clean, maintainable Python code Clear communication Scalable architecture design Automation-first mindset Long-term collaboration focus If you need a Python developer who understands backend architecture, web scraping at scale, Web3 systems, and AI integration, let’s build it properly.

You have data and a deadline. I build the pieces in between, cleanly, reliably, and with the business goal front and center. I'm a hands-on 𝗔𝗜/𝗠𝗟 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 who takes projects from idea to model to 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 (𝗠𝗟𝗢𝗽𝘀), covering NLP, Computer Vision, classic predictive modeling, and modern LLMs / Generative AI, including agentic AI workflows, RAG pipelines, and multi-agent systems, plus production full-stack apps when they truly add value. 𝗪𝗵𝗮𝘁 𝗜'𝗺 𝗚𝗼𝗼𝗱 𝗔𝘁: • Turning messy data into something useful: data pipelines, data engineering, features, guardrails • Choosing the right approach: scikit-learn / XGBoost / LightGBM when it's enough, PyTorch / TensorFlow when we need deep learning, LLMs with prompt engineering and fine-tuning when the task calls for it • Building things people actually use: microservices with FastAPI / Django / Flask, responsive frontends in React / Next.js, containers with Docker, cloud deploys on AWS / GCP / Azure, monitoring & retraining so models don't quietly drift • Working across structured and unstructured data: PostgreSQL, MongoDB, Redis, Kafka, documents, APIs, logs, whatever you have • Shipping reliable full-stack SaaS platforms: Node.js / Express backends, React / Next.js / Vue.js / TypeScript frontends, REST / GraphQL APIs, auth, RBAC, payments, WebSockets, background jobs with Celery • Explaining trade-offs clearly so you can make decisions quickly 𝗪𝗵𝗲𝗿𝗲 𝗜'𝘃𝗲 𝗯𝗲𝗲𝗻 𝗺𝗼𝘀𝘁 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜 & 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: agent orchestration with tool calling and multi-step workflows, multi-agent systems, human-in-the-loop review for high-stakes actions, knowledge platforms and enterprise search over internal data, workflow automation (LangChain, LangGraph, n8n) 𝗥𝗔𝗚 & 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲: retrieval-augmented generation pipelines, vector databases (Pinecone, Weaviate, FAISS), embedding models, chunking strategies, hybrid search, evaluation frameworks, safety checks (Hugging Face, OpenAI / Anthropic APIs, LangChain / LlamaIndex) 𝗡𝗟𝗣 / 𝗟𝗟𝗠𝘀: customer support assistants, document Q&A, classification, summarization, knowledge graphs, conversational AI (spaCy, Hugging Face, OpenAI / Anthropic) 𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿 𝗩𝗶𝘀𝗶𝗼𝗻: detection, segmentation, OCR, image processing, quality control, retail/warehouse vision (OpenCV, YOLO, PyTorch) 𝗙𝗼𝗿𝗲𝗰𝗮𝘀𝘁𝗶𝗻𝗴 & 𝗥𝗶𝘀𝗸: demand, pricing, time series analysis, churn/CLV, fraud & credit risk models, quantitative analysis 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 & 𝗦𝗮𝗮𝗦: scalable SaaS platforms, API integration, responsive React / Next.js interfaces, real-time features, e-commerce, payments, dashboards, web scraping (Selenium, Scrapy, BeautifulSoup) 𝗠𝗟𝗢𝗽𝘀 & 𝗢𝗯𝘀𝗲𝗿𝘃𝗮𝗯𝗶𝗹𝗶𝘁𝘆: CI/CD for ML, model deployment and model serving (REST/gRPC), MLflow, Airflow, Databricks, SageMaker, drift detection, traceability, evaluation loops, metrics, alerting, scheduled retraining 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱: Docker, Kubernetes, Terraform, CI/CD (GitHub Actions, GitLab, Jenkins), blue-green deployments, zero-downtime migrations, solution architecture, AWS / GCP / Azure, Bedrock, Vertex AI 𝗛𝗼𝘄 𝘄𝗲'𝗹𝗹 𝘄𝗼𝗿𝗸: 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆: you share goals, constraints, and sample data. I propose a lean plan and success criteria. 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲 𝗳𝗮𝘀𝘁: a working baseline in days, not weeks; we measure, iterate, and cut what doesn't matter. 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻𝗶𝘇𝗲: clean code, tests, containers, infra as needed; handover docs and dashboards so your team isn't guessing later. 𝗔𝗳𝘁𝗲𝗿𝗰𝗮𝗿𝗲: I monitor models, handle drift, and plan upgrades on a sensible cadence. 𝗧𝗲𝗰𝗵 𝗜 𝘂𝘀𝗲 𝗮 𝗹𝗼𝘁: Python (Pandas, NumPy, scikit-learn, XGBoost / LightGBM) • PyTorch • TensorFlow / Keras • Hugging Face • spaCy • OpenCV • FastAPI / Django / Flask • React, Next.js, TypeScript, Vue.js • Node.js, Express • PostgreSQL, MongoDB, MySQL, Redis, Kafka • LangChain / LlamaIndex / LangGraph • Pinecone / Weaviate / FAISS • Docker / Kubernetes / Terraform • MLflow • Airflow • Databricks • SageMaker / Bedrock / Vertex AI • n8n • GCP / AWS / Azure 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱: Healthcare | Finance/FinTech | E-commerce/D2C | SaaS | Manufacturing | Logistics | Startups/Scale-ups If you need a partner who can 𝘀𝗵𝗶𝗽, not just explore notebooks or push pixels, send a short note with your goal and a sentence about your data. I'll reply with one or two practical paths, costs, risks, and a realistic timeline, so you can decide quickly.

🚀 Welcome to the World of AI Innovation! Finding a top-tier AI/ML developer can be challenging — but you've come to the right place. I'm your dedicated AI & Machine Learning Developer, with 3+ years of hands-on experience building intelligent systems using Python, deep learning, and cutting-edge AI technologies. Whether you're looking to build a production-ready system or prototype your next big idea, I’m here to turn your vision into reality. 🛠️ Services I Offer ✅ Custom GPT Fine-tuning & Prompt Engineering ✅ Natural Language Processing (NLP/NLU) ✅ Generative AI (LLMs, RAG, LangChain, etc.) ✅ Voice & Speech Systems (TTS/STT, Voice Cloning) ✅ Chatbot & Virtual Assistant Development ✅ Time Series Forecasting & Predictive Modeling ✅ Computer Vision & OCR Solutions ✅ Real-time Web Apps & API Development ✅ Multimodal AI (Text, Audio, Image Integration) ✅ End-to-End AI Solution Design & Deployment 💼 Experience 3+ years of experience as a Python & AI/ML Developer Delivered AI-powered tools across domains: healthcare, fintech, automation, and productivity Hands-on with building scalable, production-grade solutions 🔧 Key Skills & Tools Languages & Libraries: Python, PyTorch, TensorFlow, Keras, scikit-learn, SpaCy, OpenCV LLMs & GenAI: GPT-3.5/4, Mistral, Claude, Gemini, LLaMA, Falcon, HuggingFace, LangChain Speech & Audio: Whisper, TTS, Voice Cloning, Real-Time Streaming (Socket.IO, WebRTC) Web & APIs: FastAPI, Flask, WebSockets, RESTful APIs Automation & Workflow: Apify, Zapier, Make (Integromat) Databases: MongoDB, PostgreSQL, Pinecone, Neo4j, MySQL Tools: Docker, Git, Jupyter, VSCode 💡 Let's Work Together! Whether you're starting from scratch or scaling an existing solution, I bring the technical expertise, creativity, and discipline needed to execute and deliver. I’m passionate about solving real-world problems using AI — and I’d love to help you solve yours. 📩 Message me to discuss your idea or project!