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    © 2026 Sebastian Alvarez

    Full-Stack Engineer · Applied AI

    Sebastian Alvarez.I build AI agents, cloud platforms, web products and developer tools.I build AI agentscloud platformsweb productsdeveloper tools

    I build software end to end: backend systems, cloud infrastructure and React/Next.js interfaces. Lately that means AI agents and integrations that automate real business workflows, built to ship and scale.

    Explore my workGet in Touch

    6+ years · 100% remote · Quito, EC

    agent · support-triage

    Classify ticket #4821 and draft a reply

    → search_kb("refund policy")

    → crm.get_customer(4821)

    Drafted. Priority: high, refund eligible.

    app/api/triage/route.ts
    export async function POST(req) {
      const { ticket } = await req.json();
      const reply = await agent.run(ticket, {
        tools: [searchKb, crm],
        model: "claude-sonnet",
      });
      return Response.json(reply);
    }
    deploy · production
    • Build42s
    • Tests128 ✓
    • Infrastructureterraform
    • Rolling out3/4

    Where I've worked

    Senior Software Engineer

    Now

    Galileo Financial Technologies

    Dec 2025 - Present · Remote

    • Core team member of the API development team, architecting and enhancing critical backend systems that power the company's financial infrastructure.
    • Led the migration from a monolithic application to a microservices architecture, significantly improving system scalability, performance, and deployment velocity.
    • Designed and implemented distributed services with a focus on high availability, fault tolerance, and horizontal scalability.
    • Collaborated with cross-functional teams to establish best practices for API design, documentation, and versioning across the organization.

    Built and shipped

    View All Projects
    • In Progress

      Kairo

      Open-source tasks for iOS and Android. Shared calendars, realtime sync with friends, and focus tools for ADHD.

      Flutter · Dart · BLoC

      View project
    • In Progress

      OpenStage

      Open-source platform for musicians and bands to generate viral clips and manage their social media presence. Uses FFmpeg WASM for in-browser video processing — no server needed.

      Next.js · React.js · Tailwind

      View project
    • In Progress

      VibeArchitect

      AI-First boilerplate generator optimized for AI-assisted development tools like Cursor and Windsurf. Analyzes project complexity and generates production-ready files in seconds.

      Next.js · FastAPI · Python

      View project
    • In Progress

      OpenKanban Board

      Effortlessly manage your projects with this Open Source Kanban Board. Create, edit, and delete projects, and organize tasks — all stored on Firebase Firestore and synchronized in real-time.

      Next.js · React.js · Tailwind

      View project
    • In Progress

      Cadenza App

      A free suite of interactive music tools made by musicians, for exploring sounds, analyzing favorite tracks and trying out musical ideas in the browser.

      Next.js · React.js · Tailwind

      View project
    • Completed

      GDG Ecuador

      The official hub for Google Developer Groups events across Ecuador. Born as the Build with AI 2025 event site, it evolved into the central platform for all GDG Ecuador community events.

      Next.js · React.js · Tailwind

      View project
    • On Hold

      Flights

      A full-stack flight analytics platform with Next.js frontend and FastAPI backend. Delivers improved CO₂ emission and fuel consumption calculations for real commercial flights with search and dashboard.

      Next.js · FastAPI · Python

      View project

    The stack I reach for

    The tools and frameworks I use day to day.
    View All Skills
    • JavaScript
    • React.js
    • Flutter
    • Material UI
    • Python
    • FastAPI
    • OpenCV
    • PostgreSQL
    • Firebase
    • Docker
    • Dart
    • GitHub
    • Bitbucket
    • Amazon Web Services
    • GCP
    • Airflow
    • Astro
    • CSS
    • Jenkins
    • Linux
    • GSAP
    • Java
    • Keras
    • Postman
    • Redis
    • Storybook
    • Vercel
    • Gemini
    • LangChain
    • PWA
    • i18n
    • JavaScript
    • React.js
    • Flutter
    • Material UI
    • Python
    • FastAPI
    • OpenCV
    • PostgreSQL
    • Firebase
    • Docker
    • Dart
    • GitHub
    • Bitbucket
    • Amazon Web Services
    • GCP
    • Airflow
    • Astro
    • CSS
    • Jenkins
    • Linux
    • GSAP
    • Java
    • Keras
    • Postman
    • Redis
    • Storybook
    • Vercel
    • Gemini
    • LangChain
    • PWA
    • i18n
    • TypeScript
    • Next.js
    • Tailwind CSS
    • Node.js
    • Flask
    • Go
    • Tensorflow
    • MongoDB
    • Figma
    • Kubernetes
    • Terraform
    • GitLab
    • Git
    • Azure
    • Angular
    • Kafka
    • Cloudflare
    • Github Actions
    • Nginx
    • Graphql
    • HTML
    • Jira
    • Playwright
    • Pytest
    • Redux
    • Supabase
    • Claude
    • OpenAI
    • FFmpeg WASM
    • RadixUI
    • TypeScript
    • Next.js
    • Tailwind CSS
    • Node.js
    • Flask
    • Go
    • Tensorflow
    • MongoDB
    • Figma
    • Kubernetes
    • Terraform
    • GitLab
    • Git
    • Azure
    • Angular
    • Kafka
    • Cloudflare
    • Github Actions
    • Nginx
    • Graphql
    • HTML
    • Jira
    • Playwright
    • Pytest
    • Redux
    • Supabase
    • Claude
    • OpenAI
    • FFmpeg WASM
    • RadixUI

    Latest articles

    On engineering, cloud and applied AI.
    View All Posts
    NewOctober 25, 2026 · 10 min read

    When AI Can Clone Your App: The Protection That Never Was

    Thirteen free, open-source apps that reimplement Adobe-style tools, built mostly by AI agents. As a free software fan I find it exciting, and as a developer it worries me: shipping a binary no longer protects anyone, and I don't know what a good idea will be worth when copying it costs almost nothing.AIReverse EngineeringOpen SourceRead More
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      AI and Security: The Same Tool on Both Sides

    Talks

    Slides from the stage, in the same style as this site.
    All talks
    • I finished my thesis the same month ChatGPT reached the world.

      My whole degree was without AI. Yours won't be, and that changes what you need to learn.

      ChatGPT was released to the public on November 30, 2022 (OpenAI).

      listerineh.dev/slides1 / 1

      Charla universitaria · November 2026

      From idea to Micro-SaaS

      Real innovation, agile engineering and AI for students: how to go from a problem in your community to a secure software product built to industry standards, and why the job is moving from writing code to deciding architecture, costs and risk.

      View slides
    • The real difference is the data model.

      Firebase gives you documents; Supabase gives you Postgres. Everything else follows from that.

      listerineh.dev/slides1 / 1

      October 2026

      Firebase vs Supabase

      Documents or tables: what each platform offers in 2026, how they compare feature by feature, and how to pick the backend for your next app.

      View slides
    • Type hints don't change how your code runs.

      Python is still dynamic: types are for tools and for people.

      listerineh.dev/slides1 / 1

      October 2026

      Typed Python

      What typing is, how Python's type hints work in 2026, good practices and tools, and where Python stands against other languages.

      View slides
    • How do five people work on the same code without stepping on each other?

      The problem before Git.

      listerineh.dev/slides1 / 1

      October 2026

      Git, GitHub and GitFlow

      First steps with Git: why it exists, what GitHub adds, how to organize branches with GitFlow, and the commands you use every day.

      View slides

    Work with me

    If you have a project or just want to talk tech, send me a message. I usually reply within a day.

    Send a messagesebask8er.alvarez@gmail.com
    listerineh.dev

    Full-stack engineer building AI agents, cloud platforms and web products. Based in Quito, working remotely.

    Open to new projects

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