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Trabajando desde casa
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Trabajando desde casa

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@VocationalSebastian-s @TechnicalSebastians @SmartPotTech @EngineeringSebastian-s @PepperTechDev @TivenosEducation @ADCOM-Group

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SebastianLopezO/README.md

Hi 👋, I'm Sebastián López O

Backend & Integration Developer · CRM (Zoho) · Data Analyst from Medellín, Colombia

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👨‍💻 About Me

I am a final-semester Computer Engineering student and Full Cycle developer from Medellín, Colombia, with 4+ years of experience across backend development, system integration, CRM automation, and data analytics. Driven by an insatiable curiosity and a strong commitment to continuous learning, I build the pieces that connect business operations: APIs, integrations, data pipelines, and the infrastructure that keeps them running.

Today I lead backend and integration work at TIVENOS, where I build and operate 20+ FastAPI integration services that connect Zoho CRM with the academic systems of 15+ education clients across Latin America and Spain. At ADCOM GROUP I work as a CRM & MarTech developer, automating Zoho CRM and shipping 100+ admissions landing pages connected to the sales funnel.

My academic and professional experiences have shaped me into a versatile individual capable of tackling complex challenges through analytical thinking, creativity, and teamwork. Whether working as part of a team or independently, I strive to contribute value by connecting ideas, optimizing processes, and solving problems with a balance of logic, empathy, and innovation.

I see engineering not just as the mastery of tools, but as the art of understanding complex systems, asking the right questions, and building thoughtful, sustainable, and human-centered solutions.



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🎓 Education

  • 2022 – 2026 · Graduation Mar 2027
    Bachelor’s Degree in Computer Engineering (final semester)
    Politécnico Colombiano Jaime Isaza Cadavid

  • 2022 – 2023
    Software Programming Technician
    SENA – Institución Universitaria Salazar y Herrera (IUSH)

  • 2020 – 2021
    Assistant Software Development Technician (Technical Secondary Level)
    Institución Educativa Pascual Bravo

  • 2019 – 2021
    High School with Specialization in Computer Science
    I.E. INEM José Félix de Restrepo

💼 Experience

  • IT Manager & Backend Integration Lead
    TIVENOS – Solutions for Education · Remote
    Jun 2025 – Present
    Lead the backend and integration platform: 20+ FastAPI services (Python, PostgreSQL, Docker) that synchronize Zoho CRM with student information systems through REST, SOAP/WS-Security, SQL Server and FTP for 15+ education clients. Built Zoho CRM widgets, admissions and scholarship forms, an observability stack (Prometheus, Grafana, Loki, Tempo) and GHCR-based CI/CD deployments on hardened Linux servers.

  • CRM & MarTech Developer
    ADCOM GROUP · Medellín (Hybrid/Remote)
    Feb 2025 – Present
    Customize and automate Zoho CRM and Zoho Creator with Deluge, integrating WhatsApp, Meta Ads and Google Ads through APIs. Shipped 100+ admissions landing pages and microsites connected to Zoho Forms and CRM, results APIs and template generators (Spring Boot, Thymeleaf) for national lottery brands, and AI-powered contact automation with Dapta.

  • Backend Developer & Data Analyst
    MUV-U S.A.S · Sabaneta, Antioquia (Hybrid)
    Jul 2023 – Jan 2025
    Cleaned and modeled CRM data and built Power BI (DAX) reports for finance, sales and marketing. Automated CRM workflows, developed web components, designed the incoming-data architecture and supported servers and IT operations.

  • Data Analyst (Internship)
    Quipux S.A.S · Medellín (Hybrid)
    Aug 2022 – May 2023
    Automated data cleaning and reporting with Python and SQL, and designed visual reports on revenue collection and mobility to support strategic decisions and operational efficiency.

🧠 Technical Skills

    📋 Skills Overview

  • Backend & APIs: Python (FastAPI, Django), Java (Spring Boot), Node.js, PHP (Laravel), REST, SOAP/WSDL (Zeep), Webhooks, JWT, OpenAPI
  • CRM & Automation: Zoho CRM, Zoho Creator, Zoho Analytics, Zoho Forms, Deluge, n8n, Zapier, Dapta, Google Apps Script
  • Data & BI: SQL, Pandas, NumPy, Power BI (DAX), Zoho Analytics, Excel, ETL and reporting automation
  • Databases: PostgreSQL, MySQL/MariaDB, SQL Server, MongoDB, Redis, SQLite
  • Frontend: React, TypeScript, Next.js, Vite, Tailwind CSS, HTML, CSS
  • DevOps & Observability: Docker & Compose, GitHub Actions, GHCR, Nginx, Linux, Kubernetes manifests, Prometheus, Grafana, Loki, Tempo
  • IoT: ESP32, MicroPython, MQTT over TLS, Arduino, Wokwi
  • Machine Learning & AI: scikit-learn, Natural Language Processing (NLP), Small Language Models (SLM), TinyML architectures, Qwen2 model integration, and RAG pipelines
  • Testing & Quality: PyTest, JUnit, Vitest, Playwright, Postman, CodeQL, Dependabot
  • Security: OWASP practices, JWT and OAuth 2.0, dependency and code scanning, Kali Linux for ethical hacking labs
  • Computer Science Foundations: Automata theory, formal languages, compiler design (JFLAP)
  • Networks & Systems: Linux environments, Cisco Packet Tracer, network service installation and administration
  • Methodologies: Scrum (Jira, Confluence), Git flow, code review

    🎖️ Tech Stack Badges

Languages

Python IT Specialist Python Java TypeScript JavaScript PHP C# C C++ VBA Google Apps Script Assembly

Backend & APIs

FastAPI Spring Boot Spring Security Django Node.js Laravel OpenAPI JWT

CRM & Automation

Zoho CRM Zoho Creator Zoho Analytics Zoho Forms Zoho Deluge n8n Zapier WhatsApp API Power Automate UiPath

Data & BI

Pandas NumPy SciPy Matplotlib Plotly.js Power BI Tableau Microsoft Excel Jupyter Notebook R D3.js GeoGebra

Machine Learning & AI

scikit-learn TensorFlow Hugging Face NLP TinyML Qwen2 RAG Pipelines

Databases

PostgreSQL MySQL MariaDB SQL Server MongoDB Redis SQLite H2

Frontend

React Next.js Vite TailwindCSS HTML CSS3 Bootstrap Qt Bricks Builder

DevOps & Observability

Docker GitHub Actions GHCR NGINX Linux Bash Git Kubernetes Prometheus Grafana Loki Tempo Let's Encrypt GitLab CI/CD

Security

OWASP Kali Linux CodeQL Dependabot

Testing

PyTest JUnit Vitest Playwright Postman

IoT

ESP32 MicroPython Arduino MQTT Wokwi Thonny

Cloud & Hosting

Azure Firebase Render Netlify GitHub Pages Heroku MongoDB Atlas Cloud Redis

Tools

Jira Confluence Figma Anaconda Replit

🌐 Connect with me

CodePen Dev.to LinkedIn Stack Overflow HackerRank FreeCodeCamp Replit Docker WakaTime GitLab Platzi

📊 GitHub Stats

GitHub metrics

Most used languages

Profile Views GitHub Stars Followers Count

WakaTime Stats Top Languages


GitHub Streak GitHub Stats

GitHub Activity Graph
GitHub Trophies
Snake animation

🧑‍💻 GitHub Contributions Overview

GitHub Contributor Stats

📚 Repositories by Organization

    🎓 Repositories of Computer Engineering

EngineeringSebastian-s metrics

Throughout my Computer Engineering degree at Politécnico Jaime Isaza Cadavid, I have worked on various projects that showcase my growth in key areas of computer science. These repositories reflect the knowledge acquired through courses in programming, databases, operating systems, artificial intelligence, and communication networks. They demonstrate practical solutions and experiments with current technologies like Java, Python, MongoDB, Docker, and more.

Each project highlights my hands-on approach and ability to tackle complex problems, underpinned by a solid theoretical foundation from my academic courses.

        📚 Repositories

    🛠️ Repositories of TechnicalSebastians

TechnicalSebastians metrics

This space is dedicated to the projects and learning I've acquired during the Software Programming Technique course at IUSH. Throughout this course, I have developed projects that showcase my proficiency in different programming languages and technologies such as C#, PHP, JavaScript, MySQL, and HTML/CSS. The following repositories represent the work I have done, including tools like Apache, Composer, and Docker. These projects reflect my growth in software development, ranging from web applications to system tools.

Each repository demonstrates my hands-on experience and my ability to create practical solutions, emphasizing both backend and frontend development, as well as the application of best practices in the software engineering process.

        📚 Repositories

    🎓 Repositories of VocationalSebastian-s

VocationalSebastian-s metrics

This space is dedicated to my projects and learning in the Software Programming Technical High School at Pascual Bravo, in collaboration with INEM. Through this educational program, I have developed a variety of projects that have helped me strengthen my skills in programming, using languages such as HTML, PHP, Visual Basic .NET, Java, and Python. These repositories represent practical applications and experiments with various programming concepts and technologies, showcasing my ability to create both functional and creative solutions.

        📚 Repositories

    🌱 Repositories of SmartPotTech

SmartPotTech metrics

SmartPot is a personal project that integrates IoT technologies to automate and optimize the management of hydroponic gardens, focusing on crops like tomatoes and lettuce. This system has been developed across multiple courses, such as Hardware Architecture (using ESP32 for IoT processes), Software Design (creating the web portal with React, Node, and design patterns), and Programming Languages Workshop 2 (developing the API with Spring Boot). Over time, the project has evolved significantly and now has its own dedicated organization to manage its expanding features.

        📚 Repositories

        📈 Repository metrics

SmartPot-web metrics SmartPot-api metrics SmartPot-iot metrics SmartPot-db metrics SmartPot-proxy metrics SmartPot-mail metrics SmartPot-cache metrics

    🏫 TivenosEducation

TivenosEducation metrics

Private organization where I lead backend and integration work for TIVENOS – Solutions for Education: 20+ FastAPI integration services that synchronize Zoho CRM with the academic systems of 15+ education clients across Latin America and Spain, Zoho CRM widgets, admissions and scholarship forms, a CRM snapshot service, and an observability stack (Prometheus, Grafana, Loki, Tempo). Every service ships as a hardened GHCR image deployed with Docker Compose through GitHub Actions.

    📣 ADCOM-Group

ADCOM-Group metrics

Private organization of the marketing agency ADCOM GROUP, where I work as CRM & MarTech developer: 100+ admissions landing pages and microsites for higher-education campaigns connected to Zoho Forms and Zoho CRM, Zoho API and serverless automations, social media metrics, and results APIs for national lottery brands built with Spring Boot.

    🚗 GoPoli

GoPoli metrics

GoPoli is a ride-sharing platform for students of Politécnico Colombiano Jaime Isaza Cadavid, where I am the main contributor: a Next.js PWA with Leaflet maps and OSRM routing, a Spring Boot 4 REST API with JWT, a PostgreSQL 16 schema, and GHCR images for every service.

        📚 Repositories

    🌶️ PepperTechDev

PepperTechDev metrics

PepperCRM is a CRM product built by a team of four, where I authored most of the backend: a Spring Boot API secured with Spring Security and JWT, MongoDB Atlas, Redis cache, Swagger documentation, and Docker images deployed on Render.

        📚 Repositories

    🐂 TaurusSebastian-s

TaurusSebastian-s metrics

Technical assessment solved end to end: CSV ingestion into MySQL/MariaDB, a FastAPI metrics API, exploratory data analysis, and a React dashboard with AG Grid and Plotly.js.

        📚 Repositories

    📊 TestLabData

TestLabData metrics

Archived private organization with 18 Python data automations (2022 – 2023): data cleaning, blacklist filtering for email and SMS campaigns, campaign generation, and monthly reports.

Pinned Loading

  1. EngineeringSebastian-s/ARQH EngineeringSebastian-s/ARQH Public

    This repository contains the work and projects developed for the Hardware Architecture course, where various programming technologies and embedded systems are explored. Through different exercises,…

    Python

  2. EngineeringSebastian-s/TLP1 EngineeringSebastian-s/TLP1 Public

    This repository contains work and projects from the Programming Languages Workshop (TLP) course, focused on applying Java knowledge in algorithms and programming through practical projects. It cove…

    Java

  3. EngineeringSebastian-s/TLP2 EngineeringSebastian-s/TLP2 Public

    This repository contains the projects developed in the continuation of the Programming Languages Workshop (TLP2) course, where Java is used with Spring Boot, Maven, Thymeleaf, and Validation to cre…

    JavaScript

  4. EngineeringSebastian-s/DB2 EngineeringSebastian-s/DB2 Public

    MongoDB, Spring Boot API & Full-Stack App. Includes a backend REST API with MongoDB, JWT, and Docker, and a frontend with Node.js, Vite, and TypeScript. Both apps are dockerized and deployed on Ren…

    Java

  5. EngineeringSebastian-s/SistemasOperativos EngineeringSebastian-s/SistemasOperativos Public

    This repo contains exercises from an Operating Systems course, using Kali Linux and Ubuntu. It includes practice with memory management algorithms (paging, segmentation, virtual memory), process sc…

    Python

  6. EngineeringSebastian-s/IA EngineeringSebastian-s/IA Public

    Python