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RAG Pipelines Developer
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I'm a Senior Full-Stack & Mobile Developer with 6+ years of experience specializing in Flutter, Android (Kotlin/Java), iOS (Swift), and modern web technologies — JavaScript, React, Node.js, Laravel/PHP — with strong expertise in AI, automation, and e-commerce to build scalable, high-performance digital products across mobile, web, and cloud. What I Offer ✅ Mobile Apps – Flutter & React Native cross-platform apps, plus native Android (Kotlin/Jetpack Compose) & iOS (Swift/SwiftUI), with published apps live on Play Store & App Store ✅ Web Development & Design – Responsive, fast-loading websites and full-stack platforms with React, Next.js, Vue.js & modern UI ✅ WordPress & Shopify – Custom themes, plugins, Elementor, WooCommerce stores & Shopify customization built to convert ✅ APIs & Backend Systems – REST, GraphQL & microservices with Node.js, Laravel, Django, FastAPI, .NET ✅ AI & ML Solutions – Custom chatbots, AI agents, RAG systems, NLP & LLM integrations (OpenAI, Anthropic, LangChain) ✅ Automation & Web Scraping – Python bots, data extraction (Playwright/Selenium), workflow pipelines (n8n, Zapier, Make) ✅ Databases – MySQL, PostgreSQL, MongoDB & Redis: schema design, optimization & migrations ✅ Cloud & DevOps – AWS, GCP, Docker, Kubernetes, CI/CD & serverless deployments Tech Stack Mobile: Flutter, React Native, Swift/SwiftUI (iOS), Kotlin & Java (Android), Firebase, Supabase, PWA Languages: JavaScript/TypeScript, Dart, PHP, Python, Java, Kotlin, Swift, C# Frontend: React, Next.js, Vue.js, Angular, Tailwind CSS, HTML5/CSS3 Backend: Node.js, NestJS, Laravel, Django, FastAPI, .NET CMS & E-Commerce: WordPress, WooCommerce, Elementor, Shopify (Liquid) Databases: MySQL, PostgreSQL, MongoDB, Redis Cloud & DevOps: AWS, GCP, Docker, Kubernetes, CI/CD, serverless AI & ML: OpenAI & Anthropic APIs, LangChain, PyTorch, TensorFlow, Scikit-learn Why Work With Me? ✔ 6+ years shipping mobile, web & AI products — with apps you can download and try today ✔ End-to-end ownership: idea → design → development → testing → deployment → scaling ✔ Clean, documented code with handover docs, so your project stays maintainable ✔ Clear communication, honest timelines & a focus on real business results Let's build your next app, website, or AI solution — message me and you'll have a clear plan within hours!

I'm a Software Engineer with more than 3 years experience designing Data Science based solutions and delivering Full Stack Web Apps. Github: https://github.com/Hussien-Sayed Zindi: https://zindi.africa/users/Hussien/ Skills: - Full Stack Development [MERN Stack] - Data analysis with python [ Numpy - Pandas - Matplotlib - Seaborn ]. - Dashboard design [ PowerBI - Tableau - Excel - Looker Studio ]. - Web scraping [ Bs4 - Selenium - Scrapy ]. - Data analysis with Excel. - Excel Automation / UDFs / Macros [ VBA ]. - Statistical modeling. - Statistical Testing. - Deep learning [ Pytorch - Tensorflow ]. - Generative modeling. - Graph Neural Networks. - Computer Vision. - RAG Pipelines. Programming Languages: - Python - JS - HTML / CSS - SQL - Power Query - VBA - C/C++ - Matlab - Assembly Achievements: - Ranked (7th place out of 323 participants) in Cryptocurrency Price Forecasting Competition at Zindi. - Ranked (9th place out of 186 participants) in UmojaHack 2022 Monthly Insurance Challenge at Zindi.

Welcome to my profile ! I am very happy to connect with you. data With over 9 years of extensive experience in Fullstack Web & Mobile Development, I have a proven track record of delivering scalable solutions using cutting-edge technologies that meet and exceed client expectations. My expertise spans across front-end, back-end, and mobile app development, providing a complete, seamless solution for all your project needs. I am proficient in building end-to-end systems, from intuitive user interfaces to complex server-side logic and cloud-based infrastructure. Whether you want to create dynamic web applications, feature-rich mobile apps, or develop custom back-end systems, I offer a comprehensive service that ensures your application is tailored precisely to your business requirements. My Approach: - Client-Centric Solutions: We take the time to understand your unique business needs and goals, ensuring our solutions align perfectly with your vision. - Agile Methodology: We follow agile practices to ensure transparency, flexibility, and iterative progress throughout the project lifecycle. - Quality Assurance: From planning to deployment, we adhere to industry best practices to deliver robust, scalable, and maintainable solutions. - My Expertise: With over a decade of experience, we’ve mastered the latest tools and technologies to stay ahead of the curve. Here’s what we bring to the table: - Frontend Development: • HTML5, CSS3, JavaScript (ES6+) • React.js, Next.js, Vue.js, Angular • Tailwind CSS, Bootstrap, Material-UI • Figma, UX/UI, Design - Backend Development: • Node.js, Express.js, Django, Flask • RESTful APIs, GraphQL • PostgreSQL, MySQL, MongoDB • PHP, WordPress, Shopify, WooCommerce, Laravel • Go, Ruby on Rails - Mobile Development: • React Native, Flutter • iOS & Android App Development - DevOps & Cloud: • Docker, Kubernetes, Jenkins • AWS, Google Cloud, Azure • GIt, CI/CD Pipelines - Data Science & AI: • Python, R, TensorFlow, PyTorch • Artificial Intelligence/Machine Learning, Deep Learning • Data Visualization (Tableau, Power BI) - Blockchain: • Solidity,Rust • Web3.js, Three.js, Ether.js - Other Skills: • Git, GitHub, Bitbucket • Agile & Scrum Methodologies • UI/UX Design (Figma, Adobe XD, Sketch) • Experts in Custom Software Applications • Penetration & Vulnerability Testing - Why Choose me? Proven Track Record: Over 9 years, we’ve successfully delivered 2500 projects with a 5 client satisfaction rate. Timely Delivery: We respect deadlines and ensure your project is delivered on time, every time. Dedicated Support: We provide post-delivery support to ensure your project runs smoothly and efficiently. Let’s collaborate to turn your ideas into reality! Reach out to me today, and let’s discuss how I can help you succeed. Thank you again, and I look forward to working with you!

I’m a backend developer and DevOps-oriented problem solver with experience building production-ready systems, automation tools, data pipelines, and game server infrastructure. I work with Java/Spring Boot, SQL, Python, Linux servers, Docker, Ansible, monitoring tools, and modern web stacks. I can help with API development, database design, infrastructure setup, automation scripts, performance debugging, data analysis, and technical problem-solving across full-stack projects. My focus is practical: clean code, reliable systems, clear communication, and solutions that actually work outside the demo environment.

Hi, I'm Sambit, a Full-Stack & AI Engineer with 5+ years of experience building modern web applications, AI-powered solutions, and scalable software products. I specialize in developing end-to-end applications—from intuitive frontend interfaces to robust backend systems and AI integrations. Whether it's a SaaS platform, an AI workflow, an internal business tool, or a custom web application, I focus on building fast, secure, and scalable solutions that solve real business problems. My expertise spans modern frontend development with React and Next.js, backend development using Node.js and PostgreSQL, and AI-powered applications using LLMs, AI agents, RAG, workflow automation, and API integrations. I enjoy turning complex ideas into production-ready products that deliver measurable business value.

I help businesses automate workflows and save time using AI. I build custom GPT-powered chatbots, document processing tools, and automation systems that reduce manual work and improve efficiency. Whether you need a chatbot for your website, AI-powered data processing, or workflow automation, I can deliver a reliable solution quickly. What I can build for you: • AI chatbots (customer support, FAQ, internal tools) • Document Q&A systems (PDF, CSV, knowledge base) • GPT-powered automation workflows (Zapier / Make) • Custom backend APIs using Python and FastAPI Tech stack: Python • OpenAI (GPT-4/5) • FastAPI • Zapier / Make • REST APIs • PostgreSQL Why work with me: • Fast delivery and clear communication • Focus on business results, not just code • Clean, scalable, and production-ready solutions Let’s build something that saves you time and grows your business.

AI/ML Engineer with experience building production-ready AI applications, multimodal processing workflows, and large-scale automation systems. Experienced across the full lifecycle of AI products — from data collection and experimentation to deployment, monitoring, and long-running production operation. Main areas of work include LLM applications, Retrieval-Augmented Generation (RAG), AI agents, multimodal AI systems, OCR/document understanding, machine learning pipelines, backend engineering, ETL infrastructure, and large-scale data automation. Focused on maintainability, observability, scalability, and pragmatic engineering decisions designed for real-world operational environments.

From premium websites and e-commerce stores to mobile apps, games and AI-powered automation, I build digital solutions tailored to each client's goals. My process covers strategy, design, development, deployment and ongoing support, so what I deliver is production-ready, scalable and built for measurable results. My expertise includes: ✅ Website Development ✅ Custom Web Applications ✅ Mobile App Development ✅ Game Development ✅ UI/UX Design ✅ WordPress & Shopify ✅ SEO & Digital Marketing ✅ Google & Meta Ads ✅ AI & Automation Systems ✅ API Integrations ✅ ChatGPT & AI Solutions ✅ Branding & Graphic Design ✅ Analytics & Business Intelligence ✅ Data Entry & Web Research I combine technical expertise, clean premium design and business strategy to create products that deliver real results. I'm easy to work with too: clear communication, fast responses and reliable delivery, so you always know where your project stands, from idea to completion.