๐ Need a python Full stack developer and Python AI Developer who can ship production-ready AI products, not just prototypes?
I'm Roman, a Python Full stack Developer and Python AI developer with 5+ years in scalable web development and 2+ years in AI/ML. I have built AI systems for skincare, corporate LMS, real estate and SaaS, including a multilingual assistant for a company with 100+ branches and an AI SaaS chatbot platform built over 11 months.
What I can help with:
โ AI chatbot development with RAG, memory and business logic
โ OpenAI / Claude / LLaMA integrations for SaaS, CRM, support, and internal tools
โ AI agents trained on company documentation, knowledge bases, and enterprise data
โ python fastapi API development for scalable AI backends
โ React / Next.js dashboards connected to Python AI systems
โ Database architecture, API integration, cloud deployment, and performance optimization
โ Custom machine learning workflows, benchmarking, Data Scraping, data pipelines and analytics
โกMy work combines python full stack engineering, python fastapi backends, LLM architecture and business-focused Software Development that reduces manual work and improves user experience. As a python full stack developer, I build full-cycle products from database design and API architecture to React / Next.js interfaces, deployment and long-term optimization. My core stack includes python full stack, Python Fastapi, Flask, Django, Node.js, React, JavaScript, TypeScript, PostgreSQL, SQL, MongoDB, Supabase, AWS, Azure, Vercel, REST APIs, WebSockets, Docker, Tailwind CSS, Material UI, and Git.
As a Python AI Developer, I create AI chatbots, RAG systems, AI agents, document intelligence tools, recommendation engines, and automation workflows. I work with OpenAI, Claude, LLaMA, LangChain, LangGraph, LlamaIndex, vector databases, prompt engineering, ReAct agents, and llm integration for real business use cases.
๐ค AI/ML Solutions I Build
๐ LLM-Powered Applications
โ Custom AI chatbots with RAG (Retrieval-Augmented Generation)
โ Multi-agent systems using LangChain & LangGraph
โ Context-aware conversational AI that maintains conversation flow
โ Integration with GPT-4, Claude, LLaMA models
๐ Intelligent Automation & Agents
โ ReAct systems (Reasoning + Acting) for complex workflows
โ Document parsing and knowledge extraction (LlamaIndex)
โ AI agents trained on internal documentation and enterprise data
โ Multi-language support with automatic language detection
๐ Smart Recommendations & Analysis
โ AI-powered recommendation engines
โ Image analysis and classification systems
โ Custom ML models for specific business use cases
โ Performance optimization for production environments
๐ Full-Stack Integration
โ RESTful API development and integration
โ Real-time data handling with WebSockets
โ Database design (PostgreSQL, MongoDB, Supabase)
โ Cloud deployment (AWS, Azure, Vercel)
๐ก Recent AI Projects & Real Results
Recent work includes an AI skincare recommendation system that analyzes customer inputs and recommends products, a corporate LMS AI assistant for 100+ branches, a real estate rental assistant using landmarks and neighborhoods instead of only addresses, and a full-stack SaaS AI chatbot platform with multi-agent logic and RAG capabilities.
๐ ๏ธ Technical Stack
My experience covers product engineering and AI development. On the engineering side, I build SaaS platforms, dashboards, APIs, admin panels and automation systems as a python full stack developer ( backend python developer ) backend developer and web developer. On the AI side, I work as a Python AI developer and AI Developer, supporting chatbots, RAG systems, llm integration, OpenAI workflows, benchmarking, machine learning and data science tasks for real business use cases.
โกMy approach is simple: clarify the business problem, design cost-conscious architecture, build clean and maintainable code, show progress through regular demos, and transfer knowledge so your team can use and maintain the system confidently.
Additional relevant experience: I have worked around startup products and teams involving laravel, PHP, wordpress, sharepoint, moodle lti, flutter, Vue.js, material ui, HTML5, html front end, payment gateway, back end development, full stack developer react, full stack java, marketing saas, mls, mls idx, real estate photo, ai video, crypto bot, trading python, dask, pandas, data entry, oxwall, qa analyst, ux designer, product manager, it consultant, seo specialist, journalist content workflows, technical resume writing, python full stack, python fastapi, python ai, llm integration, openai, and custom business automation.
๐คIf you need a reliable python full stack developer who can own the full product workflow, or a python ai developer who can build practical AI systems with python fastapi, python ai, llm integration, openai, and scalable architecture, send me a message and letโs discuss your project.
React
JavaScript
Data Scraping
Python
CSS
Django
Docker
HTML
Node.js
PHP
PostgreSQL
SQL
HTML5
MongoDB
Flask
Vue.js
Git
API
Software Development
Bootstrap
Alex S.
Pitesti, Romania
$8/hr
5.0
1 jobs
Motivated and detail-oriented Full-Stack Web Developer with hands-on experience designing and deploying responsive, high-performance web applications. Skilled in React.js, Next.js, Node.js, and PostgreSQL, with experience in modern DevOps tools like Docker and Jenkins. Passionate about clean code, teamwork, and continuous learning.
React
Node.js
MySQL
PHP
ExpressJS
Next.js
Golang
Java
Python
Flaviu Sergiu J.
Oradea, Romania
$40/hr
5.0
42 jobs
Full stack software engineer mastering: NodeJS, MySQL, Redis, MongoDB, AWS services for backend and HTML5, CSS3 and Javascript ( reactjs ).
I am able to build complex architectures with NodeJS, RestAPI(Express, Koa, Fastify) and GraphQL, MySQL, MongoDB, PostgreSQL, Redis, AWS Services like S3, Cloudfront, SQS, Lambda, API Gateway, Elasticsearch etc. I am very familiar using tools like: Typescript, BabelJS, Webpack, Grunt, Gulp.
I can implement various services using serverless architecture with API Gateway, S3, Lambda.
Strong experience in optimising MySQL queries and structures.
JavaScript
Sequelize
Browser Extension
Mongoose
RESTful API
Node.js
Laravel
MongoDB
PHP
API Integration
Amazon Plugin
PayPal Integration
GraphQL
DevOps
Relational Database
ExpressJS
Stripe
Teodor S.
Saldabagiu de Munte, Romania
$60/hr
4.9
5 jobs
โ Senior Full Stack Developer | Scalable, High-Performance Web Solutions
With over 5 years of experience, I specialize in building high-impact, scalable, and conversion-driven web applications that help businesses thrive. Whether itโs a SaaS platform, e-commerce store, presentation website, or a custom-built solution, I deliver fast, modern, and user-friendly experiences tailored to your needs.
๐น Front-End Excellence: Next.js, React.js, Tailwind CSS, Shadcn UI
๐น Back-End Power: Node.js, MongoDB, Stripe
๐น Robust Architecture: TypeScript for scalable and maintainable code
I donโt just build websites, I create digital experiences that engage users, increase revenue, and optimize business operations. Letโs discuss how I can bring your vision to life.
๐ฉ Letโs build something amazing!
Responsive Design
React
JavaScript
Search Engine Optimization
Next.js
Tailwind CSS
Bootstrap
Twig
HTML
CSS
jQuery
Git
Web Development
Front-End Development
WordPress
Sorin M.
Arad, Romania
$15/hr
5.0
9 jobs
Iโm Sorin and I create beautiful websites in React/NextJS.
I specialize in building web pages using React and NextJS (6+), and I can ๐ฃ๐ฅ๐ข๐ ๐๐ฆ๐ that youโll be pleased with the ๐ค๐จ๐๐๐๐ง๐ฌ of my work. My ๐ฑ-โญ profile shows that working with me has been a pleasure for my clients and it could be the same for you if you make the right choice.โจโจ
Hereโs what Iโm really good at:
- ๐ค Quickly getting comfortable and working well, whether Iโm on my own or with others
- ๐ Making sure everything runs super fast
- ๐ค Noticing even the tiniest details
- ๐งฑ Building parts that can be used again and again
- ๐ฅ๏ธ Making websites look great and work perfectly on any screen, big or small
- โจ Keeping my work neat and easy to grow
- ๐ Talking clearly and listening well to understand whatโs needed
- โญ Creating a 5-star project every time
You have the budget for your project, but you can't afford to waste time hiring a second developer for the same task.
If you're looking for ๐๐๐๐-๐ค๐จ๐๐๐๐ง๐ฌ React and Next.js projects, ๐ฃ๐๐ซ๐๐-๐ฃ๐ฅ๐๐๐๐๐ง websites, and a ๐ฆ๐ ๐ข๐ข๐ง๐, ๐๐ข๐๐๐๐๐ข๐ฅ๐๐ง๐๐ฉ๐ experience with your developer, feel free to reach out to me.
React Native
React
MongoDB
Redux
Firebase
Redux Saga
Andrei S.
Iasi, Romania
$45/hr
5.0
54 jobs
Driven by the philosophy that every project it's unique and needs a different approach, I try to deliver the best solutions to worldwide clients at decent prices and reasonable time frames.
My expertise area allows me to provide complete solutions for Web Applications which includes Server Configuration (Linux and Windows), Database Design (MySQL, MSSQL, MongoDB), Server Programming (PHP, Wordpress, Magento, Drupal, Joomla!, Laravel, CodeIgniter) and Front-end Developing (HTML5, CSS3, Javascript, jQuery, Angular JS, Twitter Bootstrap, ReactJs).
All the projects that I develop are including:
- the latest technologies;
- clean and optimized programming;
- quality assurance testing;
- password protected staging server;
- cross browser, cross operating system and cross device compatibility;
- hosting services or support to choose the right hosting solution if needed.
React Native
React
JavaScript
Vue.js
HTML5
jQuery
Shopify
Laravel
PHP
CSS 3
CSS
TypeScript
Angular 5
CodeIgniter
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