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I help startups, SaaS companies, and e-commerce brands turn data and AI into real business results — smarter predictions, faster automation, and high-impact AI content. With 100% Job Success Score and Top Rated Badge across 26 projects on Upwork, I deliver production-ready solutions across five high-growth AI and data disciplines: MACHINE LEARNING ENGINEERING I design, train, and deploy predictive models for churn prediction, demand forecasting, lead scoring, recommendation engines, and anomaly detection. Stack: Python, Scikit-learn, XGBoost, PyTorch, TensorFlow, MLflow. DATA SCIENCE & ANALYTICS End-to-end data pipelines, exploratory analysis, experiment design (A/B testing), KPI dashboards, and clear reports that non-technical teams can act on. Tools: Python, Pandas, NumPy, SQL, Matplotlib, Seaborn. AI & PROMPT ENGINEERING I build LLM-powered workflows, RAG chatbots, and multi-agent systems using GPT-4/4o, Claude, LLaMA, LangChain, Hugging Face, and vector databases (Pinecone, ChromaDB, Neo4j). Prompt libraries, FAQ bots, research copilots, and AI-driven content automation integrated with your existing tools (Slack, Notion, Shopify, CRM). AI VIDEO SPECIALIST I produce AI-generated video content — product explainers, training modules, and social media clips — using AI avatars, voice synthesis, and prompt-driven scripts. AI video grew 329% year over year on Upwork in 2025 and I stay current with the latest tools to deliver fast, scalable content packages. CYBERSECURITY-AWARE AI SYSTEMS I build AI and ML solutions with security best practices baked in — controlled data access, secure API usage, and audit-friendly pipelines aligned to your organization's policies. TYPICAL DELIVERABLES - ML models: forecasting, classification, regression, anomaly detection - NLP pipelines: sentiment analysis, topic modeling, document Q&A - LLM apps: RAG chatbots, AI agents, prompt libraries, workflow automation - AI video: short-form clips, product demos, training videos - Dashboards and reports stakeholders can use without a data background Why clients work with me again: Clear communication | Business-first thinking | Fast turnaround Share your goal and I will propose a concrete plan with timeline, deliverables, and milestones.

I help businesses turn AI from a buzzword into measurable results: faster operations, smarter automation, and systems that actually generate ROI. With 3+ years of experience in AI Engineering, Machine Learning, and Computer Vision, I've built and deployed production-ready AI Agents, RAG Pipelines, Generative AI applications, and Computer Vision systems for startups and enterprises across finance, healthcare, e-commerce, and SaaS. I don't build demos that impress in a meeting and die in production. I build AI systems engineered to scale, integrate, and deliver outcomes from day one: agents that automate real workflows, retrieval systems that give your team accurate answers from your own data, and vision models that see and act with precision. If you need an AI Engineer who understands both the research side and the engineering side of AI, someone who can take your idea from architecture to deployment, let's talk. 🔹 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 𝗙𝗼𝗿 𝗬𝗼𝘂 🧠 Agentic AI & AI Agents: Multi-step autonomous agents built with LangChain and LangGraph that plan, reason, and execute your business logic end to end. 📡 RAG Pipelines & Knowledge Retrieval: Retrieval-Augmented Generation systems connecting LLMs to your private data, PDFs, CRMs, and internal docs for accurate, context-aware answers. 💻 Generative AI & Custom Chatbots: GPT-4, Claude, Gemini, and LLaMA powered assistants with memory and context, integrated directly into your product or website. 🔍 Computer Vision Systems: Object detection with YOLO, OCR, face recognition, and image classification built on OpenCV, PyTorch, and TensorFlow. ⚙️ LLM Fine-Tuning & Prompt Engineering: Domain-trained models using LoRA and QLoRA, tuned for finance, legal, healthcare, or e-commerce use cases. 🌐 AI Automation & Workflows: N8N and Zapier pipelines that connect AI to your CRM, WhatsApp, Slack, and email so manual work disappears. 🛠️ AI SaaS & Product Development: Full-stack AI applications with FastAPI backends, custom frontends, Docker deployment, and cloud infrastructure on AWS, GCP, or Azure. 📌 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 AI & LLMs: OpenAI API, Claude, Gemini, Hugging Face, LangChain, LangGraph, Prompt Engineering, Tool Calling, LoRA, QLoRA, PEFT ML, DL & Computer Vision: PyTorch, TensorFlow, Keras, XGBoost, OpenCV, YOLO, OCR, Document AI Automation & Integrations: N8N, Zapier, Make, WhatsApp, Slack, Gmail, CRM APIs, Webhooks Backend & APIs: Python, FastAPI, Flask, Django REST, WebSockets, Async Workflows, Authentication Vector Databases: Pinecone, ChromaDB, Weaviate, PostgreSQL, MongoDB, MySQL, Redis Deployment: Docker, AWS Lambda, EC2, S3, SageMaker, GCP Vertex AI, Azure AI, CI/CD Frontend: React.js, Next.js, Vue.js, Angular, Streamlit, Gradio, Tailwind CSS 🏆 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 ✨ Production-ready systems built for real-world scale, not sandbox demos ✨ End-to-end ownership from architecture to deployment ✨ Clear, structured communication with milestone-based delivery ✨ AI that delivers measurable ROI through automation and efficiency ✨ Experience across MVPs, internal tools, AI SaaS, and enterprise automation Got an idea, even a rough one? Send me the details and let's engineer it into something real.

Hi! I’m Ratnapriya, a Senior Data Scientist specializing in Machine Learning, NLP and predictive modeling. I build end-to-end solutions that turn audio, text and tabular data into reliable, production-ready systems; from data design and feature engineering to model training, evaluation and deployment. What I deliver: • Text summarization, sentiment, topic & NLP pipelines (transformers + classical) • Speech emotion & audio analysis (MFCCs, spectrograms) • Predictive models & lead scoring (XGBoost, tabular pipelines) • Clustering/EDA for root-cause analysis and automation workflows I focus on clear results, reproducible code, and outputs non-technical teams can use. I can start immediately.

Are you looking for a Data Scientist who can transform your data into actionable insights and build AI solutions that solve real business problems? With 5+ years of professional experience, I specialize in developing end-to-end Data Science and Machine Learning solutions from data collection and preprocessing to model development, evaluation, and deployment. I have worked with startups, research teams, and businesses across multiple industries, helping them leverage data to make smarter decisions and automate complex workflows. My background combines strong analytical thinking with hands-on industry experience, allowing me to deliver solutions that are not only accurate but also scalable and production-ready. My Expertise, ✅ Data Science & Machine Learning ⦁ Predictive Modeling ⦁ Classification & Regression ⦁ Clustering & Segmentation ⦁ Feature Engineering ⦁ Model Selection & Optimization ⦁ Statistical Analysis ⦁ Time Series Forecasting ⦁ Model Evaluation & Deployment ✅ Artificial Intelligence ⦁ Machine Learning ⦁ Deep Learning ⦁ Computer Vision ⦁ Natural Language Processing (NLP) ⦁ Large Language Model (LLM) Applications ⦁ Retrieval-Augmented Generation (RAG) ⦁ AI Automation ✅ Python & Data Analytics ⦁ Python (Pandas, NumPy, Scikit-learn) ⦁ TensorFlow & PyTorch ⦁ SQL ⦁ Data Cleaning & Preprocessing ⦁ Exploratory Data Analysis (EDA) ⦁ Data Visualization (Matplotlib, Plotly) ✅ Data Engineering & Automation ⦁ ETL Pipelines ⦁ Apache Airflow ⦁ Airbyte ⦁ API Integration ⦁ AWS ⦁ Workflow Automation 💼 Recent Projects ✔ Developed machine learning models for agricultural spectroscopy to predict moisture content and chemical properties from NIR spectral data. ✔ Built an AI-powered WhatsApp customer support system using Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG). ✔ Designed and automated scalable ETL pipelines using Apache Airflow and Airbyte for ingesting and processing data from multiple APIs. ✔ Developed deep learning models for medical image analysis, including diabetic retinopathy detection. ✅ Why Clients Choose Me * 5+ years of industry experience in Data Science and Artificial Intelligence. * Strong expertise in Machine Learning, Deep Learning, NLP, and Python. * Experience building production-ready AI solutions, not just research prototypes. * Clean, maintainable code with a focus on performance and scalability. * Clear communication, timely delivery, and long-term client relationships. Whether you need to build a predictive model, develop an AI-powered application, automate data workflows, or extract valuable insights from your data, I'm committed to delivering solutions that create measurable business value. Let's discuss your project and build something impactful together!

Stop Wasting Millions on AI Models Crippled by Bad Data. Your AI model is only as powerful as its training data. Inconsistent data annotations sabotage performance, costing you weeks and millions in lost ROI. If your team is cleaning Machine Learning datasets instead of building, you need a better solution. As a Top Rated Plus expert, I deliver Training Ready Intelligence. My mission: transform your raw training data into high fidelity, structured assets for peak AI model performance in Computer Vision, NLP, and Machine Learning. I specialize in clean, reliable data annotation for images, video, and text. I ensure data quality directly impacts your model accuracy and bottom line. I've managed massive data labeling projects, consistently exceeding expectations. Why elite AI teams choose me: Guaranteed Accuracy: 100% pipeline ready data annotation, every time. No re work, no debugging. Zero Management Overhead: You define; I execute with precision and autonomy. Focus on AI development, not data prep. Accelerated ROI: Cut training cycles, deploy faster. Transform raw data into a competitive advantage. My Core Expertise: Image Annotation: Bounding Box, Polygon, Semantic Segmentation, Keypoint (Computer Vision) Video Annotation: Object Tracking, Event Detection (Computer Vision) Text Annotation: NER, Sentiment Analysis, Classification (NLP) Data Labeling & Dataset Preparation Ready to elevate your AI project? Click Message. Let's build the robust training data foundation your AI models deserve. Stop settling for "good enough" data annotation; get it right the first time. Best Regards, Parwiz

I help researchers, startups, and businesses turn AI ideas into working MVPs and scalable products through machine learning development, AI model integration, AI/Backend Engineer, Workflow Automations and research-backed implementation & writing support. 🏆 Top Rated | 100% Job Success | about $10K+ Earned | 40+ Completed Upwork Jobs Whether you need to validate an AI idea, integrate an existing model, reproduce research code, or improve an ML pipeline, I can help move your project from concept to a reliable implementation. 🏆 MVPs to Scalable Products | AI Research & Development | Research Support-Asistance 🧠 Deep Learning | Machine Learning | ML Model Training & Fine-Tuning | APIs | LLMs 🌟 2D/3D Vision | Sensors and Medical Data | GitHub & Hugging Face Code Reproduction 🧠 Classification, Regression, Time Series, Forecasting, Detection & Recognition WHAT I CAN HELP YOU BUILD: ✅ AI & Machine Learning MVPs, SaaS, Startup Predictive models, prototypes, backend APIs, AI model integration, and deployment-ready workflows. ✅ Deep Learning & Computer Vision Solutions Image classification, object detection, segmentation, anomaly detection, medical imaging, and 2D/3D vision pipelines. ✅ LLM, RAG & AI Integration OpenAI API integration, LangChain workflows, ChromaDB knowledge bases, retrieval pipelines, and AI-powered applications. ✅ Model Training & Fine-Tuning Data preparation, training pipelines, experimentation, evaluation, optimization, and reproducible implementation. ✅ Research Support & Code Reproduction Research-paper implementation, GitHub and Hugging Face code reproduction, benchmarking, ablation studies, experiment support, and technical reporting. ✅ Medical & Scientific Data Solutions Research-focused machine learning workflows for structured, image, and multimodal datasets. ✅ Time-Series & Sensor Data Solutions Forecasting, anomaly detection, signal processing, predictive modelling, and machine learning workflows for sensor, IoT, and sequential datasets. CORE TOOLS: Python | PyTorch | TensorFlow/Keras | Scikit-learn | OpenCV | Vercel AI | Github | Hugging Face | Flask | FastAPI | OpenAI API | Claude Code | LangChain | ChromaDB | Next.js | SQL | Docker | R/Rstudio | Matlab PyTorch | TensorFlow | Deep Learning | Neural Networks | Machine Learning | Machine Learning Model | Large Language Model | RAG | AI Model Development | AI Model Integration | Data Engineering | biostatistics | Statistical Analysis | Data Engineering | Image processing | Signal Processing WHAT YOU CAN EXPECT ✓ Clear communication and realistic scoping ✓ Clean, reproducible code and documentation ✓ Research-backed implementation decisions ✓ Flexible collaboration across USA, Europe, UK, and Australia time zones I also support Python/R Data Science Data Analysis, NLP, LLMs, OpenAI API, RAG chatbots, Clinical Data, Data Engineering, scraping tasks projects and build ETL pipelines as well as setup databases. Share your idea, dataset, existing codebase, or research paper, and I will help define the most practical path from prototype to implementation.