Sebastian Mendes Tello

About

Full stack developer with experience in React, React Native, Python Flask/FastAPI. Interested in Linux systems, self-hosting, web application deployment, and infrastructure.

Experienced working across application development, API integration, technical troubleshooting, Linux server administration, and collaborating between development and client-facing teams.

My background combines multiple areas of software engineering and technical operations:

✓ Frontend Development
✓ Backend Development
✓ Linux Systems Administration
✓ Technical Troubleshooting
✓ Functional & Technical Analysis

Currently interested in opportunities related to:

✓ Full Stack Development
✓ Linux Systems & Infrastructure
✓ Technical Support / Application Support / Systems troubleshooting
✓ Technical Analyst
✓ System Monitoring
✓ DevOps / Cloud (Junior roles)

Focused on web applications, Linux environments, troubleshooting, deployment, and infrastructure learning.

Work Experience

Full-stack Developer

Freelance

June 2025 - Now

I contribute to various projects by applying my technical and organizational skills.

Python Flask FastAPI JavaScript React Nginx Ubuntu Server APIs

Functional Technical Analyst

Avature

June 2024 - April 2025

I used my analytical and technical skills to analyze requirements and development processes. I was nexus between developers and client-facing team, defining the request's feasibility and estimating development effort.

Twig HTML CSS Gitlab

Mobile Fullstack Developer

Devapp

March 2022 - December 2023 | Part-time

I have participated in creation and maintenance of mobile applications using React Native and Python Django frameworks. Some of the projects:

JavaScript React Native Python Django Docker APIs

Application Support Analyst

Scale Ai

September 2021 - October 2023

Provided technical support for internal platforms by analyzing and debugging application issues through logs, user reports, and system behavior. Collaborated with engineering teams to identify root causes, escalate bugs, and implement fixes or improvements. Worked with APIs, configuration issues, and cross-system troubleshooting in a bilingual environment.

SQL HTML CSS JavaScript

Skills

🐧 Systems / Infra

Linux (Ubuntu Server, Debian, Fedora) Web servers deployment Nginx API debugging (curl, logs) Basic networking (ports, DNS, reverse proxy) Docker

💻 Development

Python Flask FastAPI Django JavaScript React React Native HTML CSS

🧠 Tools

SQL, SQLite Git, Gitlab & Github Jira

📚 Languages

English - Reading, writing and listening: C2 EF SET Certificate English - Speaking: B2/C1 Spanish - Native

Studies

Information Systems Analyst

National University of La Plata

In progress