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Zaid A.
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Zaid A.

Machine Learning & LLM Engineer Expert | RAG, LangChain, MLOps

𝗠𝗼𝘀𝘁 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 𝗲𝘅𝗽𝗲𝗿𝗶𝗺𝗲𝗻𝘁𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗔𝗜 𝗾𝘂𝗶𝗰𝗸𝗹𝘆 𝗿𝗲𝗮𝗹𝗶𝘇𝗲 𝗼𝗻𝗲 𝘁𝗵𝗶𝗻𝗴. 𝗔 𝗺𝗼𝗱𝗲𝗹 𝗮𝗹𝗼𝗻𝗲 𝗱𝗼𝗲𝘀𝗻’𝘁 𝗰𝗿𝗲𝗮𝘁𝗲 𝘃𝗮𝗹𝘂𝗲. 𝗪𝗵𝗮𝘁 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 𝗶𝘀 𝗵𝗼𝘄 𝗶𝘁’𝘀 𝘁𝗿𝗮𝗶𝗻𝗲𝗱, 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗲𝗱, 𝗮𝗻𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗲𝗱 𝗶𝗻 𝗿𝗲𝗮𝗹 𝘀𝘆𝘀𝘁𝗲𝗺𝘀. I specialize in building and deploying machine learning and Large Language Model (LLM) systems that solve real business problems, from intelligent assistants to data-driven automation and scalable AI services. With a background in machine learning engineering and software development, I focus on turning AI ideas into reliable, production-ready solutions. 𝗟𝗮𝗿𝗴𝗲 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲 𝗠𝗼𝗱𝗲𝗹 (𝗟𝗟𝗠) 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Modern AI products rely on powerful language models, but they need proper architecture to perform well. 𝐈 𝐝𝐞𝐯𝐞𝐥𝐨𝐩 𝐋𝐋𝐌-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐬𝐮𝐜𝐡 𝐚𝐬: AI chatbots and assistants knowledge retrieval systems AI copilots for internal teams automated research tools intelligent data analysis assistants These systems combine LLM reasoning with external data sources, APIs, and business tools. Retrieval-Augmented Generation (RAG) Systems Many businesses want AI that can answer questions using their own internal data. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗥𝗔𝗚 𝗽𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 𝘁𝗵𝗮𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝗹𝗮𝗻𝗴𝘂𝗮𝗴𝗲 𝗺𝗼𝗱𝗲𝗹𝘀 𝘁𝗼: company documents and PDFs internal knowledge bases customer support data CRM systems business databases and APIs 𝗖𝗼𝗿𝗲 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: LangChain and LlamaIndex pipelines vector search infrastructure semantic retrieval optimization hallucination reduction strategies This allows AI systems to produce accurate answers grounded in company knowledge. 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗼𝗱𝗲𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Beyond LLMs, I build and optimize traditional machine learning and deep learning models. 𝗧𝘆𝗽𝗶𝗰𝗮𝗹 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: predictive analytics models recommendation systems NLP and text analysis models classification and forecasting models AI-powered data processing pipelines The goal is always to create models that deliver measurable business insights. 𝗟𝗟𝗠 𝗙𝗶𝗻𝗲-𝗧𝘂𝗻𝗶𝗻𝗴 & 𝗠𝗼𝗱𝗲𝗹 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 Every AI system performs better when adapted to its specific task. 𝗜 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲 𝗶𝗻 𝗶𝗺𝗽𝗿𝗼𝘃𝗶𝗻𝗴 𝗟𝗟𝗠 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝘁𝗵𝗿𝗼𝘂𝗴𝗵: LoRA and QLoRA fine-tuning prompt engineering and optimization model evaluation and testing task-specific LLM adaptation structured output pipelines 𝗧𝗵𝗶𝘀 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝘀 𝗮𝗰𝗰𝘂𝗿𝗮𝗰𝘆, 𝗿𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆, 𝗮𝗻𝗱 𝗱𝗼𝗺𝗮𝗶𝗻-𝘀𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲. 𝗠𝗟𝗢𝗽𝘀 & 𝗔𝗜 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 AI solutions must run reliably in production environments. I implement MLOps pipelines that ensure models remain scalable and maintainable. 𝗧𝗵𝗶𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝘀: model deployment pipelines experiment tracking with MLflow containerized inference services CI/CD for machine learning systems monitoring model performance and drift 𝗧𝗵𝗲𝘀𝗲 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗲𝘀 𝗵𝗲𝗹𝗽 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗺𝗼𝘃𝗲 𝗳𝗿𝗼𝗺 𝗔𝗜 𝗽𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲𝘀 𝘁𝗼 𝘀𝘁𝗮𝗯𝗹𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝘀𝘆𝘀𝘁𝗲𝗺𝘀. End-to-End AI System Development I support the full lifecycle of machine learning and AI projects. This includes: AI solution architecture and planning data preparation and model training backend AI service development API integrations with applications cloud deployment and monitoring The focus is always on building AI systems that integrate smoothly with existing products and workflows. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝘁𝗮𝗰𝗸 Programming & ML Frameworks Python, PyTorch, TensorFlow, Scikit-learn 𝗟𝗟𝗠 & 𝗔𝗜 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 LangChain, LlamaIndex, Hugging Face Fine-Tuning & Optimization LoRA, QLoRA, Prompt Engineering 𝗩𝗲𝗰𝘁𝗼𝗿 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 Pinecone, FAISS, Weaviate, ChromaDB 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 FastAPI, Flask, REST APIs 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘃 Docker, Kubernetes AWS, Google Cloud, Azure 𝗪𝗵𝗮𝘁 𝗜 𝗛𝗲𝗹𝗽 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗕𝘂𝗶𝗹𝗱 AI chatbots and assistants knowledge base AI systems document analysis and processing tools predictive machine learning models AI automation workflows scalable AI backend services 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 strong combination of ML research and engineering focus on production-ready AI systems scalable architectures designed for real use clear communication and reliable delivery practical solutions that create business impact If you’re building an AI product, machine learning system, or LLM-powered application, I’d be happy to discuss how we can implement the right solution. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 Machine Learning Engineer, LLM Engineer, Generative AI Developer, AI Model Development, RAG Pipeline Development, LangChain Developer, LlamaIndex Expert, LLM Fine Tuning, LoRA QLoRA, Pyth

🇾🇪Sanaa, Yemen$15/hr100% JSS5.00 (18)Since Oct 2024

Earnings and projects

MRR
$78

Last 6 months ÷ 6

World#141,319 / 412k
🇾🇪Country#15 / 45
Revenue, last 30 days
$0

Last 6 months: $467

Total earnings
$3.1k

Billed in all: $3.2k

World#294,273 / 412k
🇾🇪Country#26 / 45
Per project
$131

$156 in the last 6 months

World#290,945 / 412k
🇾🇪Country#28 / 45
Projects, last 6 months
3
67% fixed33% hourly
World#66,481 / 412k
🇾🇪Country#7 / 45
Projects in all
24

Across 26 contracts

73% fixed27% hourly
World#116,631 / 412k
🇾🇪Country#8 / 45

Earnings, last 30 days

$3.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$3,150$3,200$3,250$3,300Oct 9Oct 24Nov 8

Skill rankings: Top 23% in AWS Glue

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