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.
Deep Learning
Generative AI
LangChain
Hugging Face
LLM Prompt Engineering
Large Language Model
Computer Vision
AI Chatbot
Machine Learning
Python
Data Science
Natural Language Processing
Prompt Engineering
Data Analytics
Data Visualization
MLOps
Artificial Intelligence
Cybersecurity Management
AI Video Generation
Data Mining
Sana C.
Bahawalpur, Pakistan
$35/hr
4.9
125 jobs
🌟 Top Rated Plus AI Engineer | PhD in Computer Science (AI, ML & Generative AI)
I specialize in transforming complex ideas into scalable, real-world AI solutions that deliver measurable impact. With a strong blend of research excellence and practical implementation, I help businesses and researchers build intelligent systems that actually work in production.
🧠 Core Expertise
🔹 Computer Vision (YOLO, Vision Transformers, Object Detection)
🔹 Deep Learning (CNNs, Transformers, Vision Transformers - ViTs)
🔹 Generative AI & Large Language Models (LLMs)
🔹 NLP & Fine-tuning (BERT, LLaMA)
🔹 Predictive Modeling & Data Science
🔹Model Optimization & Deployment
💼 Featured Projects
🚧 AI-based Helmet Detection System (YOLOv8 + Vision Transformers)
🌱 Plant Disease Classification using Deep Learning
📉 Customer Churn Prediction System
🧾 Urdu NLP & LLM Fine-tuning Solutions
🏥 Medical Imaging with Explainable AI (Grad-CAM)
🎯 What I Can Do for You
✔ Design and develop custom AI/ML solutions tailored to your business
✔ Build Computer Vision systems (detection, classification, segmentation)
✔ Fine-tune and deploy LLMs & Generative AI applications
✔ Convert research papers into working, production-ready models
✔ Optimize models for performance, scalability, and deployment
🛠️ Tech Stack
💻 PyTorch | TensorFlow | OpenCV | Transformers | Python | Scikit-learn
💡 Why Choose Me?
✨ Top Rated Plus freelancer with a proven track record
✨ Strong PhD-level research + industry implementation expertise
✨ Clear communication, reliability, and on-time delivery
✨ Focus on building accurate, efficient, and production-ready AI systems
📩 Let’s collaborate to bring your AI idea to life!
If you’re looking for a dependable expert in AI, Machine Learning, or Generative AI, I’d be happy to discuss your project.
Regards
𝑫𝒓. 𝑺𝒂𝒏𝒂 𝑪𝒉𝒆𝒆𝒎𝒂
Machine Learning
Python
Large Language Model
Image Classification
GitHub
Django
Flask
Web Application
Chatbot
Research Papers
Academic Editing
Research Proposals
LaTeX
Publication Design
Professional Journal Citations
Rachel D.
Durham, North Carolina
$370/hr
4.9
196 jobs
Top 1% Expert-Vetted Freelancer. I have a PhD in Computer Science (AI & Machine Learning) and I am a physician. I build custom AI systems with proprietary and public data, including creation of novel datasets and state-of-the-art models.
* After a 30-minute to 1-hour initial meeting, I'll craft a clearly written report outlining a unique AI strategy for your project.
* For long-term engagements, I implement AI solutions end-to-end, including data collection, data cleaning, novel model design, model implementation and training in Python, and iteration on the modeling and data strategy to achieve excellent performance.
* One of my specialties is creating custom models for proprietary datasets, including images, videos, audio recordings, and domain-specific data.
Book a 30-minute consultation with me to get immediate answers about your AI project:
- How can you leverage AI in your organization?
- What kind of AI do you need to solve a particular problem?
- Should you use a model like ChatGPT/Claude or do you need a custom model?
- What modeling strategy should you use?
- How should you collect and annotate data?
- How much data will you need?
- How should you measure performance?
After a consultation I’ll craft a clearly-written report outlining an AI strategy for your project.
Specialties:
Healthcare AI: I am an expert in healthcare AI, with a unique background that blends clinical understanding from my MD, deep technical expertise from my AI PhD, and business experience. I have completed 100+ engagements across medical specialties including radiology, plastic surgery, orthopedic surgery, dermatology, cardiology, mental health, family medicine, dentistry, physical therapy, women’s health, pediatrics, nutrition, and neurology. I have created datasets and custom models for diverse forms of biomedical data including x-rays, CTs, MRIs, clinical photographs, patient videos, medical audio, medical notes, EHR data, insurance claims, omics data, and more.
Computer Vision: I create custom AI models for 2D images, 3D images, and videos on proprietary datasets. I am excited about projects from multiple industries including healthcare, manufacturing, automotive, and agriculture. I have extensive experience with classification, object detection, segmentation, and keypoint detection, to identify and localize abnormalities or features of interest. I developed the first machine learning model in the world to predict multiple abnormalities simultaneously from a CT scan. For a dermatology practice, I built the first CV model to predict Fitzpatrick skin type, pigmentation, redness, and wrinkle severity (mean accuracy 85%)—now a core model at Kesty AI.
Artificial Intelligence R&D: I have led multiple AI research projects across industry and academia. I have developed novel AI methods, including HiResCAM, a convolutional neural network explanation method with mathematical guarantees. I have published original research across multiple areas of AI, including computer vision, natural language processing, explainable AI, expert systems, and applied AI. My research papers have been cited over 1,000 times. My healthcare AI blog Glass Box has over 700,000 readers from 185 countries.
Natural Language Processing (NLP): I have a deep understanding of large language models (LLMs) like Claude, Gemini, ChatGPT, and Llama. I have leveraged Transformers and other NLP techniques for numerous applications, including customized chatbots, medical note generation, and structured information extraction.
Advising Entrepreneurs: Before focusing on AI consulting, I spent seven years as the founder of a health AI startup. I led my previous company from concept to deployed B2B SaaS product serving medical practices. Our AI history-taking assistant and AI scribe saved clinicians 2+ hours daily. I managed engineering teams of 5-10 (60+ contributors), secured two U.S. patents, and raised competitive grant funding. I enjoy working with entrepreneurs and discussing pitch decks, fundraising, customer discovery, designing an MVP, and evaluating the ROI of an AI product.
If you’d like to talk with me about your AI project, please feel free to send me a message or book a consultation using the link on my profile.
Neural Network
Natural Language Processing
PyTorch
Computer Vision
TensorFlow
Python
Machine Learning Model
Machine Learning
Convolutional Neural Network
Scientific Research
Scientific Writing
Artificial Intelligence
Medical Imaging
Machine Learning Framework
Research Methods
Sannan A.
Islamabad, Pakistan
$15/hr
4.7
12 jobs
AI / ML / Agentic AI LLM / Langchain / RAG ChatBots
AI / Machine Learning & Computer Vision specialist with hands-on experience building, training, and deploying deep learning models for real-world applications. I specialize in YOLO-based object detection/segmentation and image processing, with a strong background in PyTorch, TensorFlow, and OpenCV, Plus modern RAG and agentic AI LLM systems using LangChain and LangGraph.
Key Expertise
YOLO Object Detection & Segmentation: Custom training/tuning (YOLO v8–v12), dataset prep, evaluation, and edge AI deployment on Jetson Nano.
RAG & Agentic AI: Retrieval-augmented generation with LangChain/LangGraph, vector stores (Pinecone, ChromaDB), tool use, memory, and guardrails. Recommendation AI Engine Systems.
Model Deployment & Optimization: Packaging for production (REST), quantization/acceleration where applicable; VM-based deployments.
Full Pipeline Development: Data collection → labeling → training → testing → Flask/FastAPI REST APIs → monitoring.
MLOps & CI/CD: Experiment tracking, versioning, reproducible workflows, and automated delivery with GitHub/GitLab.
API Integration & Apps: Secure API integration with third-party services; Flutter front-ends that consume ML APIs.
Cloud & Storage: AWS S3 for datasets/artifacts; deployable on cloud VMs or on-prem.
Frameworks & Tools
PyTorch, TensorFlow/TFLite, OpenCV, scikit-learn, Pandas, NumPy
LangChain, LangGraph, RAG, LLM, Pinecone, ChromaDB
Flask, FastAPI (REST API deployment)
Databases SQL, MySQL, PostgreSQL, Supabase
GitHub, GitLab (MLOps/CI-CD)
Google Colab / Jupyter Notebook
AWS S3, VM-based deployments
React & Flutter (client apps & dashboards)
Artificial Intelligence
Deep Neural Network
Machine Learning
JupyterLab
Deep Learning
Image Processing
Natural Language Processing
Deep Learning Modeling
Hugging Face
Image Segmentation
Object Detection & Tracking
Image Classification
Diffusion Model
OCR Algorithm
Flask
Aymen A.
Al Hoceima, Morocco
$20/hr
5.0
12 jobs
I build production AI systems for startups and product teams: RAG chatbots, AI agents, computer vision apps and backend automation.
I’m a Top Rated AI Engineer with 100% Job Success, $10K+ earned, 500+ Upwork hours and 3+ years of experience in the Field, I’m best suited for clients who need someone who can turn an AI idea into a working product, not just a demo.
Core stack: Python, LangChain, OpenCV, PostgreSQL, vector databases, AI chatbots, RAG pipelines, and agent workflows.
Python
LangChain
AI Bot
AI Chatbot
AI Classifier
Computer Vision
Natural Language Processing
SQL Programming
Retrieval Augmented Generation
AI Development
AI Text-to-Speech
AI Agent Development
PostgreSQL
OpenCV
Vector Database
Ojaswini S.
Dalhousie, India
$20/hr
5.0
7 jobs
I am an AI Engineer with 4+ years of experience building and deploying production-ready AI systems across classical machine learning, deep learning, computer vision, NLP, and Generative AI.
Unlike many AI developers who focus only on LLMs, I work across the entire AI stack. I believe the best solution isn't always a large language model or an expensive API. Many real-world problems are better solved using classical machine learning or deep learning, resulting in lower infrastructure costs, faster inference, reduced latency, and greater control over your solution. My goal is always to build the most effective system not the most expensive one.
Some of the areas I regularly work in include:
* Classical Machine Learning (XGBoost, LightGBM, CatBoost, Random Forests, SVMs, feature engineering, predictive modelling, forecasting, anomaly detection, recommendation systems)
* Deep Learning (PyTorch, TensorFlow, CNNs, Transformers, Vision Transformers, knowledge distillation, model optimization)
* Computer Vision (object detection, image classification, segmentation, OCR, document understanding, face recognition, multi-object tracking, embedding-based search)
* NLP & LLMs (RAG, GraphRAG, agentic workflows, fine-tuning, embeddings, semantic search, document QA, information extraction)
* Generative AI applications using OpenAI, Anthropic, Gemini, and open-source models
* End-to-end AI pipelines from data collection and preprocessing to training, evaluation, deployment, and monitoring
I also have extensive experience optimizing AI models for production through knowledge distillation, pruning, quantization, and efficient inference, making models smaller, faster, and more cost-effective for both cloud and edge deployments.
On the engineering side, I work comfortably with Python, FastAPI, PostgreSQL, pgvector, asynchronous programming, Docker, GPU acceleration, and cloud deployments. I build complete AI products and APIs that are designed to scale not just research prototypes.
Beyond implementation, I enjoy solving difficult research and engineering problems. Whether it's designing a predictive model, improving model accuracy, reducing inference costs, building an intelligent document processing pipeline, or deploying an LLM application, I focus on solutions that are reliable, maintainable, and practical for production.
I also lead a team of AI engineers, giving me experience not only in technical execution but also in planning, code quality, mentoring, and delivering projects on time.
If you're looking for someone who can understand the problem first, choose the right AI approach, and build a production-ready solution that balances performance, cost, and scalability, I'd be happy to help.
Artificial Intelligence
Machine Learning
Computer Vision
Natural Language Processing
Generative AI
Large Language Model
Model Optimization
Hugging Face
OpenAI API
Deep Learning
Multimodal Large Language Model
Web Scraping
LangChain
LLM Prompt
LLM Prompt Engineering
Graph Neural Network
Research Papers
Machine Learning Model
Machine Learning Algorithm
Predictive Modeling
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