Hi, I'm
Alejo Ortega
Building scalable web products and leading teams — 4+ years in React, TypeScript & Node.js. Based in Mendoza, Argentina. Open to remote.
About me
Building products & teams.
I'm a Fullstack Developer with 4+ years of experience building web and mobile applications. I specialize in React and TypeScript on the frontend, with solid backend experience in Node.js, Java/Spring Boot, and NestJS. I care deeply about scalable architecture, clean component design, and polished user experiences.
Currently, I lead the frontend team at Follow LSN— a B2B SaaS platform for cargo logistics and e-procurement — where I balance hands-on engineering with architecture decisions and mentoring. I'm also actively exploring AI/ML and LLM integration as a next frontier.
Fast Learner
Consistently picks up new technologies and paradigms quickly — from integrating AI APIs at Itesa to leading real-time geolocation systems at Follow.
Critical Thinking
Approaches complex technical challenges analytically, breaking them down into actionable steps and evaluating trade-offs before committing to a solution.
Mentorship & Team Growth
Actively supports junior developers by sharing knowledge, reviewing code with constructive feedback, and helping establish processes that make the whole team stronger.
Tech stack
What I work with.
Frontend & Mobile
Backend
Data & Infrastructure
Currently Learning
Experience
Where I've worked.
Frontend Developer
Follow LSN
January 2025 — Present
Mendoza, Argentina
- ›Built and maintained React and React Native applications across web and mobile platforms.
- ›Integrated maps and real-time geolocation tracking with rich web visualizations.
- ›Implemented complex dashboards, interactive forms, and data-heavy interfaces.
- ›Created design systems and reusable component libraries to ensure visual consistency.
- ›Led the frontend team: drove architecture decisions, established agile workflows, and mentored developers.
Fullstack Developer
Itesa Innovation Hub
February 2024 — August 2024
Remote
- ›Developed full-stack web applications using React, Node.js, Express, and MongoDB.
- ›Integrated AI APIs and libraries to add intelligent features to products.
- ›Participated in all stages of the development cycle, from planning to deployment.
Web Developer
Freelance
July 2022 — January 2024
Remote
- ›Built custom websites and web apps for businesses and individual clients.
- ›Used React, Next.js, and TailwindCSS for fast, scalable frontends.
- ›Provided technical consulting, requirements definition, and ongoing maintenance.
QA & Technical Support
Dubbz
December 2020 — July 2022
Remote
- ›Functional testing of new features with detailed incident reporting.
- ›Collaborated with international teams following agile methodologies.
- ›Platform moderation ensuring compliance and community safety.
Projects
GitHub activity.
Most of my work lives in private repos at Follow LSN — here's a snapshot of my public activity and language breakdown.
Language breakdown (by bytes across public repos)
Currently learning
AI/ML Roadmap.
Actively expanding into AI/ML as the next frontier — combining it with my frontend and fullstack background to build smarter products.
Python
In ProgressData structures, scripting, and foundations for ML pipelines.
LLMs & Prompt Engineering
In ProgressWorking with GPT-4, Claude, and open-source models. Prompt design and evaluation.
LangChain
ExploringChains, agents, memory — building LLM-powered application features.
AI Integration in Production
GoalDeploying AI features reliably: rate limits, fallbacks, observability.
Contact
Let's work together.
Open to remote opportunities — Frontend Lead, Fullstack Developer, Staff Engineer. Startups, scale-ups, and international teams welcome.
© 2026Alejo Ortega. Built with Next.js & TailwindCSS.