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I'm an experienced data scientist specializing in data analysis, preprocessing, and AI-based solutions. I help clients identify when their real problem is in the data rather than needing complex ML algorithms. I excel in solving complex business challenges through tailored solutions and expert consultation. I'm skilled in advanced math (academic level), AI agents, and data visualization (Looker Studio), which can be a stand-alone consultation or a nice bonus to your project! I deliver comprehensive end-to-end solutions - from data provider negotiation to preprocessing, modeling, implementation and documentation. I'm also available for consultation. "Greg knows LLM tools like langchain *really* well. He understood a genuinely tough problem and helped me solve it super fast. Highly recommended!" "Grzegorz Wiktorowicz, is a great financial developer...he understands the problem very quick and and dig that problem in minute manner and sloves it...hoping to catch with him in future projects .thanku" "Thank you very much sir for the super fast and extremely professional algorithm and program creation. I am super happy that we have met and I definetely would like to work together in many many more projects together." "Very professional and quick! Extremally detailed response and provided with ways to improve our business as an extra! We will for sure hire again! Thanks again" With over a decade of experience, I've successfully addressed a wide range of business issues, including internet casinos, sports betting, logistic optimization, and stock trading, among others. Employing detailed analysis and strategic resource planning, I've consistently delivered results that meet or exceed client expectations. Proficient in Python, C, and SQL, I hold cloud-native certifications as a Google Cloud ML Engineer and Data Engineer. Beyond task execution, I possess a deep understanding of methodologies, their strengths, and limitations. My background as a former scientist uniquely positions me to ensure your projects align with best practices and achieve your objectives. My adaptability and extensive knowledge make me an ideal partner for your data science needs. Whether you require data-driven solutions, want to discuss your project's unique demands, or need guidance on best practices, please don't hesitate to reach out. Initial consultations are free, and I'm eager to collaborate with you to achieve your goals. EXPERTISE: - data science and analytics - data engineering and management - Machine learning and AI - Quant trading - Data visualization and storytelling - Cloud engineering - consultation SKILLS: Python (full data stack, incl. Pandas, SciPy, Scikit-Learn, jupyter, plotly) Time Series Analysis/Forecasting (financial, trading, observations, predictions) Data visualisation - Looker Studio Masterclass certification GCP (BigQuery, Storage strategies, ETL, ML, migration, efficiency and cost reduction) - Google Cloud Professional Data Engineer certification - Google Cloud Machine Learning Engineer certification LLM (langchain, pinecone, llama.cpp, transformers, OpenAI, chatGPT) Git, docker, MATLAB, slurm, bash, linux, SQL (GoogleSQL, Postgres, MySQL) Statistics (academic level, incl. data analysis and modelling, Monte Carlo, bootstrapping, hypothesis testing) >> Drop me a massage so we can analyze your needs together (it's free!)

Currently available for additional Enterprise Tableau / BI engagements (part-time or parallel projects). Certified Tableau Partner | 7+ Years in BI & Data Visualization | Expert in Market, Financial, Marketing, Operations & E-commerce Dashboards | Tableau | Data Visualization | Business Intelligence | KPI Dashboard | Data Analytics | Power BI | SQL I help organizations turn complex data into clear, actionable dashboards that drive results. With over 7 years of experience in Business Intelligence and Data Visualization, I’ve worked with leading consulting firms (Big 3 & Big 4), startups, and global enterprises to deliver high-impact analytics solutions. I specialize in designing executive-ready dashboards for finance, marketing, operations (HR), and e-commerce—helping businesses understand performance, optimize costs, and identify growth opportunities. Core Expertise: - Tableau (Desktop, Prep, Server) and Power BI - BI Strategy, KPI Design, and Data Modeling - Dashboard Development and Automation - UX-focused, interactive, and app-like dashboard design Industry Focus: Finance | Marketing | Market Analytics (Competitor & Share Reports) | E-commerce | Operations & HR Certified Tableau Data Analyst & Desktop Specialist. Full-time freelancer delivering enterprise-grade BI solutions with speed, precision, and clarity.

There is a specific kind of web development that many engineers avoid the kind where the software must scale seamlessly under heavy usage, integrate with complex APIs, handle sensitive business data, and still deliver a polished, intuitive experience for clients and end-users alike. That is exactly the intersection I have built my career in. With 8+ years of full-stack development experience, I have shipped Healthcare SaaS platforms, multi-tenant marketplaces, internal dashboards, and scalable web applications that grow with your business. Each project demanded a level of technical depth and product precision beyond generic web app development. Healthcare SaaS is where my experience is most focused. I have worked on patient management systems, telehealth platforms, and healthcare operations dashboards designed to handle sensitive patient data and support high-traffic production environments. These systems are typically built around strict access control, audit logging, and healthcare-oriented data workflows to ensure reliability and data integrity. In these applications, I have integrated scheduling systems, EHR-style workflows, secure messaging between patients and providers, as well as third-party services such as payment gateways, insurance-related billing flows, and external healthcare APIs. Across these projects, I have consistently applied compliance-aware architecture principles, including role-based permissions, encrypted data handling, and structured audit trails to support healthcare-grade requirements and operational transparency. ► Complex Web Workflows: • Multi-role dashboards for agents, managers, and clients with dynamic permissions • Real-time chat, notifications, and task workflows to streamline operations • Integrated payment flows with Stripe and PayPal, including subscription models and usage-based billing • Analytics pipelines to track engagement, property trends, and lead conversion metrics ► Scalable & Optimized Architecture: • Server-side rendering and static generation in Next.js for speed and SEO • API design using GraphQL, REST, and WebSockets for live updates • Cloud-based solutions leveraging AWS, Firebase, and Supabase • CI/CD pipelines using GitHub Actions and automated deployment workflows ► Tech Stack: • Frontend(SaaS Product Layer): Next.js, React, TypeScript, TailwindCSS, Chakra UI • Backend(MVP & API Layer): Node.js, Express, NestJS, Python, FastAPI, Serverless Functions • SaaS Data Layer(Multi-tenant ready systems): Supabase, MySQL, PostgreSQL, MongoDB, data modeling for SaaS products • DevOps & Scaling(Production-ready MVPs): Vercel, AWS, Netlify, Docker, GitHub Actions, CI/CD pipelines • Product Integrations (Revenue & Growth systems): Stripe billing, third-party APIs, auth systems (JWT, OAuth), analytics tools If you are building a Healthcare SaaS platform, marketplace, or any scalable web app and need an engineer who has shipped full-stack solutions end-to-end, not just studied them , let’s talk. I am selective about the projects I take on, and I’d be glad to review your requirements and tell you exactly how I’d approach your MVP or product launch. ► Keywords: Healthcare SaaS Development, Property Management Software Development, MLS Integration & IDX Integration, Multi-Tenant SaaS Architecture, SaaS MVP Development, Full-Stack Web Development, Next.js Development, React.js Development, TypeScript Development, Node.js Development, NestJS Development, Serverless Application Development, API Development & Integration, REST API Development, GraphQL API Development, WebSocket Real-Time Applications, Dashboard Development, Admin Panel Development, CRM Integration, Stripe Payment Integration, PayPal Payment Integration, Subscription-Based SaaS Platforms, Property Analytics Dashboards, Lead Management Systems, AI-Powered Recommendation Systems, Predictive Analytics Applications, Healthcare Lead Scoring Systems, AWS Cloud Development, Supabase Development, Firebase Development, PostgreSQL Database Design, MongoDB Development, Docker Deployment, CI/CD Pipeline Development, GitHub Actions Automation, SEO-Friendly Web Applications, Server-Side Rendering (SSR), Static Site Generation (SSG), Responsive Web Design, Progressive Web Applications (PWA), Enterprise Web Application Development, Marketplace Platform Development, Business Process Automation, SaaS Product Architecture, Scalable Web Application Development, Startup MVP Development, Product Engineering, Cloud-Native Application Development, Data Privacy & GDPR Compliance, Secure Authentication & Authorization, Technical Architecture Consulting

🎁 𝐆𝐄𝐓 𝐘𝐎𝐔𝐑 𝐅𝐑𝐄𝐄 𝐀𝐈 𝐑𝐄𝐀𝐃𝐈𝐍𝐄𝐒𝐒 𝐀𝐔𝐃𝐈𝐓 - send me a message and I'll analyze your stack, data pipelines, and AI use cases in 3-5 days. I work as a Machine Learning Engineer, AI Engineer, DevOps Engineer, and Python Developer delivering production Machine Learning systems and AI solutions using Python, with a strong focus on LLM, RAG systems, Computer Vision, and full MLOps / DevOps infrastructure. I operate with a team of 90+ engineers across Machine Learning, DevOps, and Backend, delivering complex Machine Learning and AI systems end-to-end, from data pipelines to deployed, monitored, and scaled systems in production for US and European clients. I'm a Machine Learning Engineer, AI Engineer, and Python Developer with 10+ years of experience building Machine Learning systems and AI solutions using Python for SaaS, fintech, manufacturing, and enterprise companies. As a Machine Learning Engineer, I combine Python, Deep Learning, NLP, Computer Vision, and LLM technologies to build scalable, production-grade Machine Learning systems that solve real business problems. 💻 As a Machine Learning Engineer, AI Engineer, and RAG Developer, I build RAG systems and Retrieval-Augmented Generation pipelines using Python, vector databases, semantic search, and knowledge retrieval systems integrated into production workflows. As a Machine Learning Engineer working with RAG pipelines, I design systems connected to SQL databases, CRMs, and internal knowledge bases. One Machine Learning-powered RAG system reduced support workload equivalent to 3 full-time employees, cutting response time from hours to seconds. As an AI Agent Developer using LangGraph and CrewAI, I build multi-agent Machine Learning systems where each agent handles retrieval, reasoning, and execution in a single production pipeline. 🤖 As a Machine Learning Engineer, AI Engineer, and LLM Developer, I deliver end-to-end LLM integration using Python and models like GPT-4/5, Claude, LLaMA, and Mistral. I build AI agents, AI copilots, and Machine Learning-driven automation systems integrated into enterprise workflows. As a Machine Learning Engineer, I handle prompt engineering, context engineering, embedding pipelines, vector databases like Pinecone, Weaviate, and Chroma, and optimization of Machine Learning and RAG systems in production environments. 👁️ As a Machine Learning Engineer and Computer Vision Engineer, I develop Computer Vision systems using Python, YOLOv8, Detectron2, and OpenCV for object detection, segmentation, and real-time analytics. I delivered a Machine Learning system that replaced manual inspection in manufacturing and reduced defect escape rate to near zero. I also build Document AI systems using OCR tools like Textract and Google DocAI, including full Machine Learning pipelines for processing noisy and unstructured data. 🧠 As a Machine Learning Engineer and NLP Engineer, I build Machine Learning systems using Python for Named Entity Recognition, text classification, semantic search, multilingual NLP, question-answering systems, sentiment analysis, and topic modeling. I combine traditional Machine Learning approaches with LLM technologies to deliver production-ready language systems. ⚙️ As a Machine Learning Engineer, MLOps Engineer, and DevOps Engineer, I design, deploy, and scale Machine Learning systems in production using Python and cloud infrastructure. I build Machine Learning and AI infrastructure with Kubernetes, Docker, Terraform, Ansible, Jenkins, Kafka, Grafana, Prometheus, and NGINX across AWS, Google Cloud, and Azure. In one DevOps and Machine Learning case, deployments scaled from 1 per month to 120 per month, deployment time decreased by 85%, and infrastructure costs were reduced by 55%. As a Machine Learning Engineer and DevOps Engineer, I don't just build models - I deploy, monitor, optimize, and scale Machine Learning systems in real environments. I build Machine Learning systems using Python, AI solutions, LLM applications, RAG systems, Computer Vision pipelines, NLP systems, and scalable MLOps / DevOps infrastructure that works in production. If you're looking for a Machine Learning Engineer, AI Engineer, Python Developer, or DevOps Engineer who understands Machine Learning systems, DevOps infrastructure, and real business workflows - you're in the right place. 🚀 If you're building or scaling a Machine Learning or AI product and need a Machine Learning Engineer, Python Developer, or DevOps Engineer who can design, build, deploy, and scale real production systems - not just prototypes - I can help. Most clients come when their Machine Learning systems are slow, unstable, or not delivering results. I redesign, optimize, and turn them into scalable Machine Learning and AI systems powered by Python and reliable DevOps infrastructure. 📩 Send me a message with your current setup, and I'll tell you what's missing, what can be improved, and whether your Machine Learning system is ready for prod

🌟 Statistical Data Analysis | EDA | PCA | Hypothesis Testing | Data Preprocessing and Cleaning | T-tests | ANOVA | Chi-square Test | Linear Regression | Correlation Analysis | Multivariate Analysis | Time Series Analysis | Machine Learning Models 🌟 Hi! I’m Muhammad Owais Khan, a data science expert with over four years of experience turning complex data into actionable business insights. I specialize in data analysis, machine learning, statistical modeling, and data visualization using Python, R, and other industry-standard tools (SPSS, STATA, Microsoft Excel, etc.). 💡 What I Can Help You With 🌟 Data Analysis & Visualization: I am adept at turning raw data into visually compelling stories. Using advanced visualization libraries such as Python’s Matplotlib and Seaborn, as well as R’s ggplot2, I create insightful visuals that reveal trends, outliers, and patterns critical for informed decision-making. My expertise extends to creating dynamic dashboards in MS Excel, allowing for interactive data exploration and immediate insight generation. 🌟 Data Cleaning & Wrangling: I expertly preprocess data using the powerful Python library Pandas and R's dplyr to ensure accuracy and completeness. My methods include handling missing values through sophisticated imputation techniques, ensuring data normalization and standardization, and utilizing regular expressions for meticulous text data cleaning. This thorough preparation guarantees that datasets are primed for analysis and modeling. 🌟 Exploratory Data Analysis (EDA): I employ both statistical summaries and advanced visualization techniques to uncover hidden patterns and insights within the data. I utilize hypothesis testing, correlation analysis, and advanced analytics methods such as principal component analysis (PCA) and factor analysis to provide a deep understanding of the data, which supports subsequent predictive modeling and strategic business decisions. 🌟 Machine Learning Models: I build a range of machine learning models from supervised techniques like linear and logistic regression, support vector machines, and ensemble methods (random forests and gradient boosting machines) to unsupervised methods, including k-means clustering and hierarchical clustering. My expertise in neural networks using TensorFlow and Keras supports applications in deep learning, such as natural language processing and image recognition. 🌟 Statistical Analysis: I am skilled in applying various statistical tests and techniques, including ANOVA, chi-square tests, t-tests, and regression analysis to validate hypotheses and extract insights. Using statistical software like Python, R, STATA and SPSS, I conduct complex data analysis and inferential statistical modeling, ensuring that findings are robust, statistically significant, and actionable. 🌟 Advanced Data Technologies: Proficient in SQL for data querying and manipulation, with familiarity in big data technologies like Apache Hadoop and Spark for processing voluminous datasets. My skill set also includes utilizing cloud platforms such as AWS and Google Cloud for scalable data analysis. 🛠️ Tech Stack • Languages: Python, R • Libraries: Pandas, NumPy, Scikit-learn, TensorFlow, Keras, Matplotlib, Seaborn, Plotly, ggplot2, dplyr • Tools: Excel, SPSS, STATA, SQL, AWS, Google Cloud, Hadoop, Spark 🌟 Proven Record of Strategic Impact 🌟 🏆 Notable Achievements:  ✅ Enhanced Data Precision: Leveraged advanced analytics, including machine learning algorithms and statistical techniques, to refine data quality across industries.  ✅ Decision Support: Utilized predictive modeling and sophisticated visualizations in Python and R, enhancing strategic business decisions.  ✅ Operational Efficiency: Innovated robust data management systems that streamline operations and maximize data utility. 📌 Industry Experience My expertise spans across education, finance, healthcare, and retail sectors, enabling me to adapt and address unique data-related challenges effectively, providing tailored and impactful big data solutions. 🌟 Showcase of Signature Projects 🌟  ✅ Retail Sales Forecasting: Developed a predictive model using Python & R Studio, integrating time series analysis and regression models to set new benchmarks in strategic planning.  ✅ Healthcare Analytics: Leveraged machine learning models and statistical analysis in SPSS and Python to uncover pivotal trends that enhance service delivery and patient care.  ✅ Data Visualization Mastery: Crafted impactful visual narratives for executive decision-making, utilizing advanced tools like Python and MS Excel. 🤝 Let’s Work Together Whether you're a startup or an enterprise, I bring the skills to clean, analyze, and model your data so you can focus on growing your business. Ready to turn your data into growth? 👉 Invite me to your job and let’s get started!

💼 AI Developer | OpenAI developer | AI developer Zapier | Python data engineer for real-time data pipeline | AI developer LangChain 🏆 TOP RATED PLUS | 💰 $5M+ Client Revenue | 💼 111+ Projects Delivered | ✅ 11,000+ Upwork Hours 💡 Clients Achieved: 🚀 Faster delivery – AI systems cut weeks of manual work 💰 Revenue growth & efficiency – automated workflows and AI agents increased ROI ⏱️ Time savings – streamlined operations, reduced human effort ✅ Reliable, production-ready AI – systems deployed safely and scaled in real-world environments 📊 Data-driven insights – AI-powered analytics, RAG pipelines, and persona simulations improved decision-making I am an AI Developer and OpenAI developer specializing in designing and deploying production-ready AI systems that combine advanced machine learning models with scalable backend engineering. As an AI developer LangChain specialist and AI developer Zapier expert, I help businesses turn complex AI concepts into reliable real-world solutions. I also work as a python data engineer for real-time data pipeline development, building streaming, event-driven, and analytics systems for AI-powered applications. ⚡🤖 AI Agents & Autonomous Systems 🤖 As an AI Developer and AI developer LangChain engineer, I create intelligent agents capable of reasoning, planning, memory retention, and multi-step workflows. These systems integrate OpenAI developer APIs and AI developer Zapier automation layers for real business execution and reliability. Voice AI & Communication Platforms 🎙️ I develop low-latency real-time AI voice systems using Twilio and STT → LLM → TTS pipelines, built as an AI developer and OpenAI developer for scalable conversational AI with backend-controlled logic, interruption handling, and production deployment. RAG Pipelines & Data Intelligence 📚 As an AI developer LangChain specialist and OpenAI developer, I implement Retrieval-Augmented Generation pipelines for fast, accurate, and auditable access to internal data. This includes embeddings, metadata pipelines, vector databases (Pinecone, Qdrant, Weaviate), and python data engineer for real-time data pipeline architectures. Backend Engineering & Cloud Deployment ☁️ I build robust Python/TypeScript backend systems with FastAPI, Django, and Node.js, acting as both AI developer and python data engineer for real-time data pipeline solutions. I deploy scalable systems on AWS, GCP, and Azure using Docker, Kubernetes, monitoring, and autoscaling. 🚀 Selected Projects Monitoring & Summarization Tool ⚖️ – Automated regulatory updates, cutting manual review time and delivering clear summaries. Built by an AI Developer to make compliance faster and smarter. I Persona Simulation 👥 – Transformed Reddit discussions into interactive synthetic personas for marketing insights. Engaging AI experiences designed by an AI Developer. Centefuse AI – Content Generation ✍️ – MVP platform for automated social media content and scheduling. High-quality output with minimal client effort, engineered by an AI Developer. Waste Classification App ♻️ – Mobile AI solution for classifying and estimating waste quantities. Flexible, hardware-free, and efficient – crafted by an AI Developer. AI Script Generator 🎬 – Generative AI for screenwriters to structure stories and draft scripts quickly. Accelerates ideation while preserving creativity, built by an AI Developer. Client Testimonials ⭐⭐⭐⭐⭐ “Great work, very professional. Good at gathering input. Talented variety of staff.” – AI Chat, Recorded Calls, Coaching AI Platform ⭐⭐⭐⭐⭐ “Very professional and technically capable. He was able to work within my budget and deliver a top notch product.” – Marketplace Development II ⭐⭐⭐⭐⭐ “Outstanding work during the discovery phase. The team was prepared, communicated clearly, and proposed elegant, efficient solutions that exceeded our expectations.” – AI-powered Treatment Writer Why Clients Work With Me 💼 Delivery of clean, maintainable, production-ready AI solutions Expertise bridging AI models and backend engineering as an AI Developer Predictable results with scalable architectures Clear communication and collaborative approach