Nestor Gentil
@nestorgentil
I build production AI platforms, RAG systems, and scalable backend APIs.
ArgentinaWhat I'm looking for
I founded GeoNext, an AI consulting and product studio, where I built a satellite intelligence SaaS with FastAPI, React, Google Earth Engine, PostgreSQL, and Supabase.
At Celestial AI, I led full-stack AI development across TypeScript, Go, Python, React, FastAPI, and Node.js. I built RAG search and AI assistants, real-time React/Next.js applications, and secure backend APIs deployed on AWS.
Earlier, at SparkFun Electronics and Twill, I delivered high-throughput services, semantic search, ETL pipelines, and cloud infrastructure. I also led a team of six engineers, improving architecture, code quality, deployment reliability, API performance, and security.
Experience
Work history, roles, and key accomplishments
Founder & AI Systems Engineer
GeoNext
Jul 2026 - Present (1 month)
Founded an AI consulting and product studio focused on helping startups and SMBs adopt production AI. Designed and built a satellite intelligence SaaS using FastAPI, React, Google Earth Engine, PostgreSQL and Supabase.
AI & Full Stack Engineer
Celestial AI
Feb 2023 - Jun 2026 (3 years 4 months)
Led AI full-stack development with TypeScript, Go, Python, React. Built RAG-based search features and AI assistants to help teams find information faster and automate daily tasks.
AI | Backend Engineer & Lead Developer
SparkFun Electronics
Apr 2019 - Oct 2022 (3 years 6 months)
Built RAG and semantic search solutions with LangChain and Pinecone. Developed Go and FastAPI backend services with OAuth2/JWT authentication.
Software Engineer
Twill
Jun 2015 - Mar 2019 (3 years 9 months)
Delivered high-throughput Python (FastAPI/Flask) and Node.js APIs for inference and workflows. Reduced p95 latency through caching, query optimization, and connection pooling.
Fullstack Developer
Coexya
Jun 2014 - Mar 2015 (9 months)
Built e-commerce backend with Node.js, Express, and Laravel. Developed secure B2B APIs with RBAC and audit logging.
Education
Degrees, certifications, and relevant coursework
University of Mendoza
Bachelor's Degree, Computer Science
2010 - 2014
Bachelor's Degree in Computer Science from the University of Mendoza, completed from 2010 to 2014.
Availability
Location
ArgentinaAuthorized to work in
Job categories
Skills
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