SYSTEM_STATUS: ONLINE
developer_profile.sql
SELECT * FROM developers WHERE status = 'available';

> Juanlu Serrano

Full Stack Developer & DBA

Building scalable applications and optimizing database systems. Passionate about clean code, efficient queries, and modern web technologies.

10+
PROJECTS
1+
YEARS EXP
99.9%
UPTIME
-- 1 row returned in 0.042ms

about_me

TABLE: developer_metadata
FieldValue
name
Juanlu Serrano Leal
role
Full Stack Developer & DBA
location
Málaga, Spain
experience
1+ years
focus
Mobile app, Desktop app, Web Development and Database Systems
databases
PostgreSQL, MySQL, MongoDB
VIEW: developer_bioRECORD 1/1

My name is Juanlu but I am better known by my nick Z3nitt and I am a programmer focused on back end and with extensive knowledge in front end. I'm a person eager to put into practice everything I've learned and to give my 100%. My great passion are videogames and comics. I define myself as a sociable person, who likes to learn, with initiative and eager to work in a team.

I have been interested in programming since I was a child, I remember spending part of my childhood trying to create games or applications, but I didn't understand what I was doing. I studied chemistry for two years until I realized that what I was passionate about was programming so I decided to study a higher degree in cross-platform application programming.

Problem SolverTeam PlayerQuick LearnerDetail-Oriented
-- Query executed successfully: 2 panels loaded

projects

4 records
SELECT * FROM projects ORDER BY id DESC;ROWS: 4
#01Multiplayer game

Mobile Game based on Dragon Ball Z

JavaJetpack Compose

Full Stack Developer

#02Pure Java desktop app

Derrap

JavaMySQLJavaAWTJavaSwing

Backend Developer

#03Domotic integration

Home automation desktop application

PythonFastApiTauriDockerArduinoReactTypeScriptTailwindCSSPostgreSQLRust

Full Stack Developer

#04Portfolio site

Portfolio Website

NextjsTypeScriptTailwindCSSReactNodejsVercel

Full Stack Developer

-- Click on a row to view detailed record

skills

4 categories
Frontend
6 skills
React / Next.js70%
TypeScript68%
Tailwind CSS60%
Vue.js70%
HTML & CSS98%
Angular55%
Backend
16 skills
Node.js90%
Python82%
Go65%
REST APIs92%
Express.js88%
Django75%
Ruby on Rails60%
Java90%
C#70%
PHP70%
.NET65%
Spring Boot60%
Kotlin75%
Rust50%
Hibernate70%
FastAPI80%
Databases
9 skills
PostgreSQL60%
MySQL90%
MongoDB85%
CouchDB78%
Firebase80%
Redis70%
SQLite88%
Oracle DB65%
Microsoft SQL Server75%
DevOps / Tools
4 skills
Docker85%
Git92%
AWS40%
CI/CD80%
ALSO PROFICIENT IN:
GraphQLPrisma
-- Skill proficiency calculated from project experience and usage frequency

experience_log

5 entries
SELECT * FROM experience ORDER BY date DESC;
LIVE
WORK[November 2025 - Present]

Full Stack Developer & Database Administrator

Mosaic Factory

Working on production web applications with a strong focus on backend systems and database administration. Responsible for database design and implementation, backend development with Node.js, frontend development using React, and deployment of websites. Managing MySQL and PostgreSQL databases, including schema design, user management, backups, and performance tuning.

Node.jsReactMySQLPostgreSQLSQLNoSQL
WORK[March 2025 - October 2025]

Junior Full Stack Developer

Internalia Group

Developed and maintained an intelligent WhatsApp bot with a PHP backend, including webhook integrations with Firestore. Participated in web deployment and maintenance tasks, and contributed to frontend development using React and Angular.

PHPFirestoreReactAngularWebhooks
WORK[April 2023 - September 2023]

Store Clerk

Comic Stores

Assisted customers with purchases and product recommendations while managing stock and organizing merchandise displays. Maintained a clean, welcoming store environment and provided customer support.

Customer ServiceInventory ManagementRetail
EDU[2024 - 2025]

Enterprise Cybersecurity Specialization

Aprendea

Completed a certified specialization focused on cybersecurity practices for enterprise environments. Covered key topics such as network security, risk mitigation, threat detection, and incident response, with emphasis on protecting business-critical systems.

CybersecurityEnterprise SecurityRisk MitigationIncident Response
EDU[2023 - 2025]

Cross-Platform Application Development Technician

MEDAC Málaga

Completed a technical degree focused on cross-platform application development. Gained hands-on experience building desktop and mobile applications, working with databases, and applying software engineering fundamentals across multiple technologies and platforms.

Software DevelopmentCross-PlatformDatabasesDesktop AppsMobile Apps
INFOExperience log updated. Continuous learning in progress...
-- Log entries displayed in reverse chronological order

connect

Let's Build Something Together

I'm always interested in hearing about new projects, opportunities, or just connecting with fellow developers. Feel free to reach out!

Send Message
RESPONSE PREVIEW
{
  "status": 200,
  "message": "Connection established",
  "data": {
    "availability": "Open to opportunities",
    "response_time": "Usually within 24 hours",
    "preferred_contact": "email"
  }
}
-- All endpoints are active and accepting requests