Leulseged G.
Full-Stack Engineer | AI, Web Scraping, Automation & RAG
I take pride in building clean-coded, secure, scalable, and fast web applications. I’m a Full-Stack Engineer with experience building modern web applications, backend systems, automation workflows, and data-driven tools. I work across frontend and backend using technologies like React, Next.js, Node.js, TypeScript, Express.js, MongoDB, PostgreSQL, Firebase, and RESTful APIs. Along with full-stack development, I also build AI-powered solutions including web scraping systems, automation workflows, RAG-based tools, AI chatbots, and custom integrations using modern APIs and LLM platforms. I can help with: - Full-stack web application development - Backend API development and integrations - Web scraping and structured data extraction - AI-powered tools and chatbot integrations - RAG workflows and knowledge-based systems - Business process automation - Admin dashboards and internal tools - Authentication and secure backend systems - Cloud deployment and scalable architecture My experience includes building responsive frontend applications, developing efficient backend logic, managing databases, integrating third-party services, and creating custom solutions for real business needs. My skill summary: - AI & Automation: OpenAI integrations, RAG systems, chatbot workflows, process automation - Frontend: React.js, Next.js, JavaScript, TypeScript, HTML, CSS, Tailwind CSS, Material UI - Backend: Node.js, Express.js, Nest.js - Scraping & Data: Web scraping, data extraction, structured parsing, automation pipelines - Databases: PostgreSQL, MySQL, MongoDB, Firebase, Supabase - APIs: RESTful APIs, GraphQL, WebSockets - Cloud & DevOps: AWS, Firebase, Docker, deployment automation - Security: JWT, OAuth, secure auth flows, API protection - Tools: Linux, Ubuntu, Debian, Jenkins, Git I focus on building practical, reliable, and scalable solutions that help clients automate work, use data better, and ship products faster. Ready to collaborate? Click the 𝐈𝐍𝐕𝐈𝐓𝐄 button and let’s discuss your project.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $8.2k
Billed in all: $24,523$25k
$1.6k in the last 6 months
Across 15 contracts
Earnings, last 30 days
Skill rankings: Top 8% in MySQL
Ranked by MRR among everyone on Upwork with the skill.
- #94Material UI1,027 freelancers · 🇪🇹 #3Top 9%🇪🇹#3 of 29
- #295MERN Stack3,086 freelancers · 🇪🇹 #3Top 10%🇪🇹#3 of 54
- #399NestJS3,757 freelancers · 🇪🇹 #17Top 11%🇪🇹#17 of 194
- #616Tailwind CSS6,979 freelancers · 🇪🇹 #16Top 9%🇪🇹#16 of 250
- #868Front-End Development8,892 freelancers · 🇪🇹 #10Top 10%🇪🇹#10 of 129
- #1,001MongoDB10,865 freelancers · 🇪🇹 #18Top 9%🇪🇹#18 of 260
- #1,168MySQL14,472 freelancers · 🇪🇹 #13Top 8%🇪🇹#13 of 133
- #1,670PostgreSQL12,851 freelancers · 🇪🇹 #31Top 13%🇪🇹#31 of 331