Hey, it's Sergio

Work Experience

1. •

   Full Stack Developer & AI Integrator

   Quickspark

   September 2025 - Dec 2025

   Led the migration of a native application to React Native, React.js, and Firebase using clean architecture. Designed component systems (Figma to code) and implemented a complete cloud backend with Firebase and GCP. Integrated Generative AI services using prompt engineering and memory systems.
2. •

   Full Stack Developer (Mobile & Data)

   Pixel Innova

   June 2024 - Sep 2024

   Developed cross-platform mobile applications using Android Studio and Xcode. Implemented automated data synchronization services and integrated external APIs to improve application performance and data management.
3. •

   BSc in Computer Engineering

   University of Salamanca

   September 2021 - July 2025

   Advanced specialization in Software Architecture, Algorithms, and Distributed Systems. Focused on modernizing my technical foundation to transition from industrial logic to high-level software engineering.
4. •

   Full Stack Developer (IoT & Industrial)

   Maquinaria LDM

   July 2019 - August 2020

   Engineered real-time monitoring and data processing systems for international palletizing machinery. Developed interactive dashboards using React.js and high-performance data processing scripts in Python.
5. •

   Industrial Software & PLC Developer

   Desarrollo Tecnológico

   July 2018 - July 2019

   Developed mission-critical software solutions and PLC programming for manufacturing systems. Implemented complex automation control logic and managed technical deployments across multiple industrial facilities.
6. •

   Robotics Software Developer

   Transformadores Gedelsa

   June 2017 - July 2018

   Programmed and optimized automated systems for ABB welding robots. Developed custom software solutions for robotic process automation (RPA) and industrial quality control.
7. •

   Industrial Systems Technician

   Enusa Industrias Avanzadas

   March 2017 - June 2017

   Optimized critical industrial equipment in the Nuclear Sector, implementing preventive maintenance protocols and troubleshooting complex automated systems under strict safety standards.
8. •

   Higher VET in Automation and Robotics

   FP Ciudad de Béjar

   September 2015 - June 2017

   Specialized in robotics programming, control logic (PLC), and industrial automation, establishing a strong foundation in algorithmic thinking and system design.

Projects

AI Chatbot

• Python
• Git
• OpenAI
• MongoDB
• FastAPI
• oauth2

An AI chatbot API built with FastAPI that features JWT authentication, OpenAI integration for chat conversations, and RAG (Retrieval Augmented Generation) capabilities using ChromaDB for document-based context. The application follows clean architecture principles with separate domain, application, and infrastructure layers for maintainable and scalable code.

Crypto tracker dashboard

• Typescript
• Javascript
• React
• Git
• Tailwind CSS
• Blockchain
• MongoDB
• Express.js
• oauth2

Crypto portfolio web app with React, TypeScript, and Vite. Features modular architecture, clean code, and real-time NFT/token data from external APIs.

Pokedex - Pokemon Displayer

• Typescript
• Javascript
• React
• Git
• Tailwind CSS

Pokédex using React, custom hooks, ErrorBoundary, React Router DOM, TypeScript, and advanced state management for seamless UX.

Monorepo template

• Typescript
• Javascript
• React
• Git
• Tailwind CSS

A monorepo template for React applications with TypeScript and React Router DOM. Create and manage multiple apps within a single repository, sharing one or more libraries across all apps.

axie.es - Live Leaderboard

• Astro
• Node.js
• Express.js
• Docker
• Blockchain
• Git
• GitHub Actions
• CSS
• Linux
• Cloudflare
• MySQL
• Puppeteer

Live platform that displays rankings for different Axie Infinity game modes. Developed using Node.js, Express APIs, Cloudflare, Linux servers, GitHub Actions, and other technologies.

Kaeru - NFT Giveaways

• React
• Python
• Firebase
• Blockchain
• Linux
• Git
• Docker

NFT giveaway platform with automatic prize distribution on Ethereum Blockchain (Ronin), Discord notifications, and automated information writing to Google Sheets.

Self-managed Web3 Community

• Python
• Blockchain
• Linux
• Git
• Docker
• Bash
• MySQL

Discord application with over 2000 users that enables free automated management of the <recruiter-player> model in the Axie Infinity game. Allows real-time tracking of players and interacts with multiple APIs providing various functionalities, OpenAI API, and execution of Blockchain transactions, among others...

Marketplace Bots

• Python
• Blockchain
• Linux
• Git
• Docker
• Bash
• MySQL

Multiple backend projects in Python that detect and perform real-time transactions buying and selling NFTs to obtain passive economic profit on the Ronin blockchain.

About me

Hi, I'm Sergio Corral. The curiosity to understand how things work has always been with me. Today, I focus on developing full-stack solutions and automated systems that connect technology with the world.

Throughout my career, I have worked on development projects combining web development, automation, and cloud deployment. My experience covers Node.js, React, Python, Java, and C#, along with DevOps tools such as Docker, Git, CI/CD pipelines, and cloud platforms (AWS, Azure, Google Cloud).

I have also worked on blockchain automation projects, creating bots that interact with smart contracts to execute optimized operations on networks like Ethereum and Ronin.