09/18/2026 updated
100 % available
Senior Full Stack & AI Engineer
Salta, USA
Only remote
Bachelor of Computer Science (BCompSc)About me
Senior Full Stack & AI Engineer with 7+ years building SaaS and AI/LLM systems. Expert in React, Next.js, TypeScript, Node.js, Python, RAG, OpenAI, LangChain, AWS, Docker, and end-to-end product development.
Application Programming Interfaces (APIs)LAMP StackComputer-Aided Software EngineeringSoftware as a ServiceDevOpsOpenStackTensorFlowAzure Machine LearningNext.jsSystems IntegrationWorkflowsChatbotsFlaskSaltStackGenerative AI
Full Stack Development
Expertise in building production SaaS platforms end-to-end using React, Next.js, TypeScript, and JavaScript on the frontend, combined with Node.js, NestJS, Express.js, Python, FastAPI, and Flask on the backend.
AI & LLM Engineering
Hands-on experience building and shipping production AI products including LLM applications, AI agents, chatbots, and voice assistants using OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, MCP, RAG, Vector Databases, and Semantic Search.
Cloud & DevOps
Deployment and maintenance of production infrastructure on AWS, Vercel, and Docker with CI/CD pipelines, achieving high uptime while scaling to support millions of users.
API Design & Integration
Design and implementation of production REST and GraphQL APIs, including backend services, database integrations, authentication, and third-party system integrations supporting millions of concurrent requests per day.
Databases & Data Management
Proficiency with PostgreSQL, MongoDB, Supabase, and Firebase for relational and non-relational data management, as well as vector databases for semantic search and RAG workflows.
RAG & Workflow Automation
Engineering of retrieval-augmented generation (RAG) workflows using vector databases and tool-based orchestration for document processing and semantic search, improving retrieval accuracy and response relevance.
AI/ML Services with Python
Building Python-based AI/ML services with FastAPI, Flask, TensorFlow, PyTorch, and OpenCV, integrating machine learning components directly into web applications.
Domain-Specific Software Delivery
Delivery of software and AI solutions across healthcare, legal, finance, eCommerce, and customer-support domains, translating business requirements into production-ready products.
Expertise in building production SaaS platforms end-to-end using React, Next.js, TypeScript, and JavaScript on the frontend, combined with Node.js, NestJS, Express.js, Python, FastAPI, and Flask on the backend.
AI & LLM Engineering
Hands-on experience building and shipping production AI products including LLM applications, AI agents, chatbots, and voice assistants using OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, MCP, RAG, Vector Databases, and Semantic Search.
Cloud & DevOps
Deployment and maintenance of production infrastructure on AWS, Vercel, and Docker with CI/CD pipelines, achieving high uptime while scaling to support millions of users.
API Design & Integration
Design and implementation of production REST and GraphQL APIs, including backend services, database integrations, authentication, and third-party system integrations supporting millions of concurrent requests per day.
Databases & Data Management
Proficiency with PostgreSQL, MongoDB, Supabase, and Firebase for relational and non-relational data management, as well as vector databases for semantic search and RAG workflows.
RAG & Workflow Automation
Engineering of retrieval-augmented generation (RAG) workflows using vector databases and tool-based orchestration for document processing and semantic search, improving retrieval accuracy and response relevance.
AI/ML Services with Python
Building Python-based AI/ML services with FastAPI, Flask, TensorFlow, PyTorch, and OpenCV, integrating machine learning components directly into web applications.
Domain-Specific Software Delivery
Delivery of software and AI solutions across healthcare, legal, finance, eCommerce, and customer-support domains, translating business requirements into production-ready products.
Experience
Professional experience10+ years
Freelancer since2026
Languages
EnglishFluent
Project history
Owned architecture-to-deployment delivery for 7 SaaS platforms end-to-end using Next.js, React, TypeScript, Node.js, PostgreSQL, and Supabase. Built and shipped production AI products including LLM applications, AI agents, chatbots, and voice assistants. Automated complex business workflows through AI-powered document processing, semantic search, and RAG pipelines. Designed and implemented production REST and GraphQL APIs. Engineered RAG workflows improving retrieval accuracy by 30%. Built Python-based AI/ML services with FastAPI, Flask, TensorFlow, PyTorch, and OpenCV. Deployed and maintained production infrastructure on AWS, Vercel, and Docker with CI/CD pipelines.