09/18/2026 updated
100 % available
Senior Full-Stack & AI Developer | Next.js, Node.js, Python, Java & Spring
Santiago del Estero, Argentina
Worldwide
SupabaseJava (Programming Language)JavaScriptAmazon Web ServicesDjangoPython (Programming Language)PostgreSQLMongoDBNode.jsNext.jsReact.jsSpring BootFastAPIAngularJSFull Stack Development
I’m a Senior Full-Stack & AI Developer specializing in production web applications, SaaS platforms, APIs, integrations, and AI-powered products.
I build complete systems from frontend and backend architecture through APIs, databases, AI integration, deployment, and optimization, with a strong focus on maintainable, production-ready software.
Core Technologies
Frontend: React, Next.js, TypeScript, JavaScript, Tailwind CSS
Backend: Node.js, Python, FastAPI, REST APIs, API integrations
Databases: PostgreSQL, SQL, Supabase, Prisma
AI & LLM: OpenAI API, LLM integrations, RAG, AI Agents, function/tool calling, workflow automation, conversational AI
Cloud & DevOps: AWS, Docker, CI/CD, Vercel, cloud deployments
What I Build
• SaaS platforms and production web applications
• AI-powered applications and internal business tools
• LLM features, AI assistants and conversational systems
• AI agents, tool calling and workflow automation
• RAG and knowledge-based applications
• REST APIs and third-party integrations
• React/Next.js applications with Node.js or Python backends
• PostgreSQL/Supabase applications and data-driven systems
• Authentication, authorization and backend services
• Dockerized applications and cloud infrastructure
I’m comfortable owning projects across the full development lifecycle: requirements → architecture → development → integration → testing → deployment → optimization.
I work closely with technical and business stakeholders, translate requirements into practical solutions, and build systems designed to remain maintainable as products scale.
Experience
Professional experience5 - 10 years
Freelancer since2019
Languages
EnglishFluent