Steven Vallejo Ortiz

Steven Vallejo Ortiz

IT Professional and Philosopher

Portfolio

Here are some of my projects.

Open Source

Tools

The years indicate since when I started using the tool, while the % shows how proficient I am.

Back-End Development:

  • TypeScript (9 years)
    99%
  • Node.js (9 years)
    95%
  • NestJS (9 years)
    93%
  • Hapi (8 years)
    92%
  • Python (8 years)
    91%
  • Express (7 years)
    90%

Front-End Development:

  • ReactJS (Redux, sagas, ReactContext) (9 years)
    95%
  • Next.js (7 years)
    93%
  • JavaScript (9 years)
    90%
  • HTML (8 years)
    85%
  • Flask (8 years)
    80%
  • CSS3 (Bootstrap, MaterialUI, Bulma) (8 years)
    80%

DevOps and Cloud:

  • Git, GitHub, BitBucket, GitLab (9 years)
    95%
  • Firebase (5 years)
    93%
  • Linux Hosting (11 years)
    92%
  • Docker (5 years)
    91%
  • Vercel (3 years)
    90%
  • Google Cloud (5 years)
    80%

Databases:

  • PostgreSQL (9 years)
    99%
  • MariaDB (9 years)
    98%
  • MySQL (9 years)
    95%
  • MongoDB (7 years)
    93%
  • Graph (Neo4j) (2 years)
    80%
  • Neo4j (5 years)
    75%

Artificial Intelligence and Machine Learning:

  • Numpy, Wolfram Alpha, NLP (7 years)
    90%
  • Cupy (7 years)
    88%
  • TensorFlow, PyTorch (6 years)
    85%
  • Hugging Face (6 years)
    83%
  • Advanced Stable Diffusion (6 years)
    80%
  • CUDA (6 years)
    75%

AI Tools:

  • ChatGPT (3 years)
    95%
  • GitHub Copilot, TabNine (2 years)
    93%
  • OpenIA (3 years)
    90%
  • Google Cloud AI (1 years)
    80%
  • Google Gemini (0 years)
    75%
  • Deebseek (0 years)
    70%

Paradigms and Protocols:

  • REST (12 years)
    100%
  • Object Oriented (12 years)
    95%
  • Functional (11 years)
    90%
  • GraphQL (8 years)
    85%
  • Procedural (10 years)
    85%
  • Reactive (10 years)
    80%

Project Planning and Management:

  • SCRUM, KANBAN, LEAN (8 years)
    85%
  • Advance Documents (8 years)
    80%
  • Trello, JIRA, ClickUp (7 years)
    70%
  • TDD, UML (7 years)
    70%
  • Kanban (7 years)
    70%
  • Jira (6 years)
    60%

Game Development:

  • C# Unity 3D (12 years)
    80%
  • Virtual Reality (Oculus, HTC VIVE) (10 years)
    70%
  • Augmented Reality (Vuforia) (10 years)
    70%
  • Game Data Capture (3 years)
    70%
  • Roblox (6 years)
    65%
  • Decentraland (6 years)
    60%

What inhabits my mind

I hold a basic technical degree in software, yet my extensive professional experience and outstanding portfolio demonstrate that my learning journey has been largely self-directed, distancing me from traditional academic institutions that, in my view, struggle to keep pace with the dynamic demands of today's world.

I am passionate about problem-solving, critical thinking, and making meaningful contributions to society, blending practical experience with an innovative approach to turn challenges into opportunities.

Regarding the mind, I lean towards an emergentist stance, where mental properties arise from the complexity of the brain and cannot be reduced to its parts. About being, I follow the ideas of Alain Badiou, seeing being as a process in constant change, always in relation to the event.

Ethically, I am influenced by Jean-Paul Sartre, adopting an existentialist perspective in which each individual is fully responsible for their actions and must find meaning in their freedom. Aesthetically, I align with Immanuel Kant, seeking the aesthetic experience as something universal but deeply personal.

I spend much of my time exploring and studying ontologies and scientific knowledge. I firmly believe that philosophy and science are not opposites, but fields that complement each other to better understand reality.

Work Experience

Finca Directa S.A.S

CTO / Systems Manager
2021/11 - Present

Indie Levels Studio S.A.S

Senior Backend Developer
2021/08 - Present

ZENIT S.A.S

SEMI-SENIOR Full Stack Developer
2020/10 - 2021/08

INS S.A.S

Junior Full Stack Developer
2019/02 - 2020/10

Kambban S.A.S

Junior Full Stack Developer
2020/02 - 2020/05

Sena

Intern at SIPAEM
2018/03 - 2018/10

IQpixels S.A.S

Manager - Developer
2016/07 - 2017/01

Freelance in IT Infrastructure

Freelance in IT Infrastructure
2014/02 - Present

Freelance in Video Game Development

Freelance in Video Game Development
2015/02 - Present

Freelance - Web Application Development

Freelance in Web Apps
2018 - Present

Critertec

Backend Developer
2024/11 - Present

Contact Me

Send me a message