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Portfolio

đź‘‹ Hello I'm Steban Martinez Gutierrez

Software Developer

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Junior Frontend/Backend Developer

Passionate about web development, I create practical and user-friendly solutions using HTML, CSS, JavaScript, PHP, MySQL, PostgreSQL. I enjoy building clean, efficient systems.

Colombia - Cartago Valle del Cauca

stebanbusiness@gmailcom.com

(+57) 3137057729

Vercel.apps

Education

My education qualification

COTECNOVA University – Cartago, Colombia

2022 - Present

Systems Engineering

Ten-semester Engineering program focused on the analysis, design, and implementation of information systems for business, academic, and industrial environments. The curriculum emphasizes software development, information management, and systems architecture, integrating applied research and technological innovation. Graduates are trained to lead projects in ICT infrastructure, software engineering, and digital transformation within organizations.

COTECNOVA University – Cartago, Colombia

2022 - 2024

Professional Technician in Computer Applications

A 4-semester technical program that prepares professionals to develop, test, and maintain software applications. Coursework includes operating systems, database management, and programming languages. Graduates are qualified to code and support software solutions within businesses, ensuring effective use and integration of digital tools

Experience

What I'm working on

GitHub Projects

2022 - Present

Independent Developer

I actively design and build web-based tools focused on education, inventory systems, and user experience. Through continuous self-learning and coding challenges, I keep enhancing my skills while preparing to join the tech industry professionally.

Academic Projects

2022 - Present

Systems Engineering Student

As part of my degree program, I’ve built real-world projects that solve everyday problems—ranging from excuse management platforms to dynamic inventory systems—all hosted and documented on GitHub.

Skills

My expertise skills

98

%

HTML

95

%

CSS

85

%

JavaScript

82

%

PHP

60

%

Python

90

%

MySQL / SQL

85

%

Git & GitHub

My Services

What I do for you

I develop responsive and functional websites using HTML, CSS, JavaScript, and PHP, applying clean and scalable code.

Front-end

Back-end

Responsive design

I connect applications to relational databases like MySQL and PostgreSQL, enabling dynamic content and data management.

CRUD systems

MySQL / PostgreSQL

Secure queries

I build personal portfolios and deploy them using platforms like Vercel, GitHub Pages or local servers, also databases (supabase).

Vercel & GitHub

Responsive layouts

SEO basics

Portfolio

My Recent Works

Cotecnova's excuse system

Software Design for COTECNOVA

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Web App

JavaScript Calculator

Photography

Security Analysis for ABC Corporation

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Blog

Recent Posts

Testimonial

What People Say

Contact Me

Let’s Start A New Project

The contact form is currently inactive. Get a functional and working contact form with Ajax & PHP in a few minutes. Just copy and paste the files, add a little code and you're done. Download Now.

Address

123 Street New York.USA

Mail Us

info@example.com

Telephone

(+012) 3456 7890