Hire the Best Context Engineers

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Sebastian B.

Iasi, Romania

$40/hr
5.0
10 jobs

AI Engineering Lead and PhD researcher in AI/ML, certified in Claude by Anthropic. I design and ship production systems built around Claude: agents, RAG pipelines, and automations that actually make it to deployment Over the past 7 years I've helped more than 20 companies put AI into production across the US, Europe, and the Middle East. I've led engineering teams at startups large and small, and I bring a consistent track record as a high performer on the work I take on I post regularly on Medium, X, and YouTube on the latest in AI, ML, and tech, which keeps me on top of how fast the field moves, with an audience of over 10,000 across platforms. I share this work publicly partly because teaching a thing is the best test of whether you understand it What I build: - RAG chatbots and agents over your documents, PDFs, Notion, and knowledge bases - LLM fine-tuning on your domain data - Workflow automations that replace 40–80% of manual operations - Solution architecture, so you commit to the right stack the first time - Recovery work on stalled or underperforming AI projects Send over the project and I'll reply the same day with a plan, a clarifying question, or an honest pass

  • Python
  • Artificial Intelligence
  • Mobile App
  • Desktop Application
  • App Development
  • Machine Learning
  • AI Agent Development
  • AI Audio Generation
  • AI App Development
  • AI Audio Generator
  • AI Bot
  • AI Chatbot
  • LangChain
  • LLM Prompt Engineering
  • MLOps
Mahnoor S.

Lahore, Pakistan

$15/hr
5.0
2 jobs

I build production-ready AI systems that automate business workflows, transform unstructured data into actionable insights, and replace repetitive manual processes with intelligent automation. I specialize in Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Computer Vision, Voice AI, Machine Learning, and workflow automation. My goal is to build scalable AI applications that integrate seamlessly into existing business processes and deliver measurable business value. Recent Projects • Built an industrial computer vision pipeline using YOLOv8 OBB, SORT, PaddleOCR, and ZXing for automated manufacturing line monitoring. • Developed Nexa, a Vapi.ai-powered voice agent that automates appointment scheduling through natural conversations and backend API integrations. • Created IntelliDoc, a multi-document RAG platform using LangChain, FAISS, Hugging Face, and Gemini AI, enabling users to retrieve information from multiple documents using natural language. What I Can Deliver ➤ AI Agents & Chatbots • RAG-based document and knowledge base chatbots using LangChain, FAISS, Hugging Face, and Gemini AI • Custom AI agents powered by OpenAI, Claude, Gemini, and Mistral • Multi-document semantic search and intelligent document Q&A • Voice AI agents using Vapi.ai and Retell AI • Prompt engineering and custom LLM workflows • REST API integrations with third-party platforms ➤ Computer Vision • Real-time object detection and tracking using YOLO and SORT • OCR pipelines using PaddleOCR and ZXing • Image classification using CNNs and Transfer Learning (MobileNetV2) • Facial emotion recognition and AI-powered image analytics • Deep learning solutions using TensorFlow and PyTorch ➤ Workflow Automation • Intelligent automation using Python, n8n, Make, and Zapier • CRM, Gmail, Slack, and API integrations • Lead management, reporting, and business process automation • End-to-end workflow automation to eliminate repetitive tasks ➤ Machine Learning & Data Science • NLP, text classification, predictive modeling, and recommendation systems • Resume-job matching and intelligent document processing • Data preprocessing, feature engineering, and model optimization • Model deployment using Flask, FastAPI, and Django Technical Stack Languages: Python, JavaScript, SQL AI & Machine Learning: OpenAI API, Gemini AI, Claude, Hugging Face, LangChain, FAISS, TensorFlow, PyTorch, Scikit-learn, Keras, LLMs, RAG, NLP, Computer Vision Backend: FastAPI, Flask, Django, React Automation: n8n, Make, Zapier, REST APIs, Workflow Automation, API Integrations Tools & Deployment: Docker, Git, GitHub, Jupyter Notebook, Google Colab, Vapi.ai, Retell AI How I Work Every project starts with understanding your business goals before designing the technical solution. I prioritize clean architecture, scalable development, and production-ready implementations that are easy to maintain and integrate seamlessly into your existing workflows. Whether you need an AI chatbot, a RAG application, a Voice AI agent, a Computer Vision solution, or workflow automation, I build reliable AI systems that improve efficiency, reduce manual effort, and create long-term business value. Available for short-term & long-term projects | Production-Ready AI Solutions | Reliable Communication | Clean Code | Scalable Architecture AI Engineer | LLM | RAG | AI Agents | AI Chatbots | LangChain | OpenAI API | Gemini AI | Claude | Hugging Face | Computer Vision | YOLO | OCR | TensorFlow | PyTorch | NLP | Machine Learning | Voice AI | Vapi.ai | Retell AI | Workflow Automation | n8n | Make | FastAPI | Flask | Django | React | Python | SQL | Docker

  • Python
  • Machine Learning
  • Artificial Intelligence
  • Natural Language Processing
  • Large Language Model
  • Chatbot Development
  • LangChain
  • Retrieval Augmented Generation
  • Vector Database
  • AI Agent Development
  • FastAPI
  • Full-Stack Development
  • SaaS Development
  • Computer Vision
  • AI Platform
Muhammed E.

Istanbul, Turkey

$25/hr
5.0
3 jobs

AI Engineer | Agentic AI & LLM Specialist | End-to-End Cloud Solutions ✅ Focused on Next-Gen Multi-Agent Systems ✅ Delivering End-to-End Intelligent Solutions on AWS Are you looking to build advanced AI solutions that go beyond basic chatbots and deliver real autonomous business impact? I specialize in designing, developing, and deploying production-ready Agentic AI systems using Python, LangChain, and LangGraph. I bridge the gap between cutting-edge LLMs and practical software engineering. From architecting complex multi-agent reasoning workflows to deploying fully scalable applications on AWS, I bring your AI vision to life with reliable, results-driven solutions. Past Freelance Successes I have a proven track record of delivering high-quality, complex AI systems to clients, including: Real-Time Speech-to-Speech Translation: Delivered a highly optimized, low-latency translation pipeline that earned a 5-star client rating. Multi-Agent Educational Platforms: Architected and deployed a specialized Veterinary AI Study Assistant, utilizing a multi-agent system to help veterinary students learn and test their knowledge interactively. AI-Powered CRM Automations: Built intelligent agents seamlessly integrated into CRM systems to handle lead management, automate workflows, and drive business efficiency. Why Work With Me? Agentic AI Mastery: Deep expertise in building intelligent multi-agent systems, autonomous decision-making loops, and custom AI tools using LangChain and LangGraph in Python. End-to-End AWS Delivery: I don't just write the AI logic; I deliver the whole product. From research and prototyping to full, scalable deployment using AWS, Docker, and FastAPI. NLP & LLM Expertise: Skilled in leveraging state-of-the-art models (GPT, Gemini, Claude, Llama) for prompt engineering, advanced RAG pipelines, and complex reasoning tasks. Clear Communication & Collaboration: I translate complex AI architecture into understandable, actionable milestones for my clients. Areas of Expertise: Agentic AI: LangChain, LangGraph, CrewAI, multi-agent orchestration, tool calling, workflow automation. LLM & NLP: RAG pipelines, prompt engineering, context management, semantic search. Speech Systems: Real-time speech-to-text and translation pipelines (Whisper, etc.). Deployment & Scaling: AWS infrastructure, FastAPI, Docker, CI/CD, end-to-end software architecture. My goal is to help businesses adopt next-gen autonomous AI solutions that are robust, scalable, and immediately impactful. Let’s connect! Share your project requirements, and I’ll help you design and build intelligent systems that truly deliver.

  • Artificial Intelligence
  • Machine Learning
  • Machine Learning Model
  • Natural Language Processing
  • Large Language Model
  • Generative AI
  • Computer Vision
  • Automatic Speech Recognition
Ashraf A.

Cairo, Egypt

$30/hr
4.9
65 jobs

GIS Solutions Engineer | ArcGIS Pro, ESRI's GeoAI, Remote Sensing & Web Mapping Thank you for visiting my profile. With over three years of dedicated experience in Geographic Information Systems (GIS), I specialize in solving spatial challenges through precise and innovative GIS solutions. My expertise spans GIS Development, Spatial Analysis, and Data Visualization, ensuring that I can deliver exceptional results for your project goals. I help businesses and researchers turn geospatial data into clear, accurate, and actionable insights. I specialize in ArcGIS Pro, GeoAI deep learning, remote sensing, spatial analysis, and building interactive GIS web apps. Skills: • ArcGIS Enterprise (Online, Portal, Server) • Desktop GIS (ESRI Suite - ArcGIS Pro. QGIS) • ArcGIS API for JavaScript. • Python (ArcPy) • GIS Development • Geocoding • ESRI's GeoAI (Detect Objects Using Deep Learning) • Geolocation & Data Collection • Georeferencing & Vectorization • Spatial Querying & Mapping • Spatial Data Analysis • Spatial Data Science • ESRI ModelBuilder • Data Visualization • Spatial Problem Solving • Cartography • Leaflet.js • LiDAR and Point Clouds Processing • Google Earth Pro • ERDAS Imagine • Remote Sensing Key Services: • Interactive Maps Development • Creating Shapefiles • Georeferencing Scanned Maps • Network Analysis • Coordinates Extraction • Heat Map Creation • Satellite Image Processing • Geocode Addresses My focus is not just on completing tasks, it's about fostering growth and building lasting partnerships with my clients. As a fast learner who thrives on problem-solving, I remain dedicated to helping you achieve your goals. I view every project as an opportunity to build a collaborative partnership rather than merely completing a task. Understanding your unique needs and objectives is foundational to delivering tailored solutions that exceed expectations. Let's connect!

  • Digital Mapping
  • ArcGIS
  • ArcGIS Online
  • GIS
  • Remote Sensing
  • Spatial Analysis
  • Data Visualization
  • Data Collection
  • QGIS
  • Georeferencing
  • Lidar
  • Geolocation
  • Geospatial Data
  • Geocoding
  • Raster Analysis
Abdelrahman R.

Beni Suef, Egypt

$20/hr
4.8
164 jobs

With 7+ years as an independent freelancer—backed by 2,300+ logged hours, Top-Rated Plus (Top 3%), and 120+ successfully delivered projects on Upwork—I’ve helped 15 SaaS founders and entrepreneurs bring their vision to life by managing the full product lifecycle from idea to launch. As a Senior Agile Business Analyst and Product Manager for SaaS, B2B, and B2C products, I help founders build their vision from 0 → 1 by defining and managing requirements, backlogs, roadmaps, and prioritization (MoSCoW); delivering user research, competitive analysis, market research, user journeys, wireframes, user stories, and acceptance criteria; and more. Then, I move into QA Analyst work to test and validate releases against requirements and specifications. This includes creating test cases and edge cases, reporting bugs, running cross-platform testing (web, iOS, Android), and performing UAT, functional, UX, and performance testing. Finally, I move into technical writing, creating API documentation, building knowledge bases with AI chatbot integration, writing release notes, user guides, and how-to articles, designing annotated screenshots with callouts, and producing demo and walkthrough videos. As a T-shaped engineer with a primary role as an Agile Business Analyst and Product Manager, plus experience as a QA Analyst and Technical Writer, I’m confident I can help you with the following: 🧰 MAIN ROLE: Senior Agile Business Analyst | SaaS & B2B Product Manager ● Business Analysis & Planning: Understand your idea and high-level requirements. Draft market research, competitive analysis, requirements, scope, and UX research. Draft BRDs and PRDs, and use AI to accelerate documentation so I spend less time writing and more time on strategy, prioritization, and validation. ● Product Management: Define the MVP and roadmap. Create the backlog. Draft user stories, acceptance criteria, business rules, prioritization, validations, and data mapping. Create UX wireframes and sketches, and map user flows and journeys. ● Requirements Engineering & Designing: Designing UML diagrams (use case, sequence, activity, context, ERD, DFD), BPMN (levels 1-3), and flowcharts. Support architecture engineers by creating technical and cloud architecture diagrams. Draft high-level and low-level design documents. ✍️ T-SHAPED ROLE: Technical Writer | API Documentation | Knowledge Bases | Walkthrough & Demo Videos ● Technical Writing & Documentation: Write API and developer documentation using a docs-as-code approach (Mintlify, ReadMe, GitBook, etc.). Build knowledge bases and help centers (Intercom, Notion, GitBook, MkDocs, etc.), including AI chatbot integrations. Create how-to articles, user guides, and release notes in weeks, not months. ● Walkthrough & Demo Videos: Create screencasts, feature demos, and walkthrough videos with AI voiceover, callouts, screen recording, on-screen text, and zoom effects. 🪲 T-SHAPED ROLE: QA Analyst | Test Engineer ● QA vs Requirements Validation: Validate new releases against requirements 1:1, flag mismatches, draft AI-assisted test cases to cover gaps, create UAT test plans, and share them with the dev team. ● Manual & Cross-Platform Testing: Perform manual, cross-platform testing across iOS, Android, macOS, Windows, Linux, and web (Chrome, Safari, Firefox, Edge, Brave). Draft AI-assisted test cases and create bug reports (Sequence ID, Title, Description, Priority, Test Status, Progress Status, Test Steps, Expected Result, Screenshots/Recorded Videos). ⚒️ My Tools I use Notion, Jira, Trello, Confluence, Asana, Azure DevOps, ClickUp, Monday, Slack, Miro, Figma, Claude, ChatGPT, Gemini, Draw io, Lucidchart, Visio, FigJam, Google Workspace, Microsoft 365, Swagger, ReadMe, GitBook, Intercom, MkDocs, Nextra, and Fumadocs. Let’s work together to shape your product faster, clearer, and more effectively. Send me a message, and I’ll be more than happy to help. Best regards, Abdelrahman Ragab

  • Technical Documentation
  • API Documentation
  • Technical Writing
  • SaaS
  • English
  • Requirements Specification
  • Business Analysis
  • AI Product Management
  • Requirement Analysis
  • Agile Project Management
  • Minimum Viable Product
  • Competitive Analysis
  • Gap Analysis
  • Manual Testing
  • Product Management
  • Quality Assurance
  • Product Backlog
  • Project Prioritization
  • Lucidchart
  • Miro
Riaz Ahmed M.

Islamabad, Pakistan

$30/hr
4.7
271 jobs

I am a UK Chartered Engineer (CEng), PhD specialist, and Product Design Engineer specialising in SolidWorks, DFM, and custom machinery. Over the past 25 years, I have helped clients bridge the gap between initial prototyping and mass production, transforming complex engineering concepts into cost-effective, manufacturing-ready solutions. I take pride in delivering robust, real-world results, whether that means engineering high-performance mobile cargo winches, developing automated systems, or building innovative custom machine prototypes. Every design I create balances structural integrity with a strict focus on Design for Manufacturability (DFM) to keep your fabrication costs as low as possible. ⚙️ Core Engineering Capabilities Industrial Mechanical Design: Custom machines, automated systems, high-performance mobile cargo winches, and heavy equipment mechanisms. Design for Manufacturability (DFM): Optimising components for CNC machining, sheet metal fabrication, laser cutting, and injection moulding to reduce lead times. Advanced 3D Modelling & Drafting: Delivering precision CAD models, assembly development, and production-ready 2D engineering drawings utilising GD&T. Rapid Prototyping & Sourcing: Iterative development (FDM, SLA) combined with smart sourcing of standard components (like McMaster-Carr) to lower production overheads. 🛠️ Technical Stack & Tooling CAD/CAE Platforms: SolidWorks, Autodesk Inventor, Fusion 360, Onshape, AutoCAD, Revit Analysis & Automation: MATLAB, LabVIEW Visualisation & Rendering: Blender, KeyShot Every project benefits from practical engineering principles and industry-proven methods. Let us discuss your engineering requirements, click the green "Message" button to schedule a technical consultation regarding your project!

  • Product Design
  • Industrial Design
  • Mechanical Design
  • Design for Manufacturing
  • 3Design
  • 3D Modeling
  • 3D Rendering
  • Mechanical Engineering
  • SolidWorks
  • CAD
  • Finite Element Analysis
  • Autodesk Inventor
  • Sheet Metal
  • Injection Mold Design
  • Geometric Dimensioning & Tolerancing
  • Rapid Prototyping
  • Blender
  • KeyShot
  • Concept Design
  • 3D Printing

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