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Tiago Lelis

Mid Level N3 Support Analyst

Your time is strategic. My mission is to ensure technology runs efficiently, discreetly and reliably with support that anticipates failures and protects your team's performance.

About Me

I am a technical support professional with three years of hands-on experience, currently leading operations in one of the country's largest marketplaces.

Over time, I have developed strong technical skills combined with a user-centered approach, grounded in active listening and a constant focus on delivering solutions that work in the real context of each business.

I stand out especially in complex corporate environments, where seamless integration between platforms, ERPs and hubs requires stability, agility and strategic insight.

I have solid experience with technical and backoffice tools and work closely with stakeholders and managers, acting as a bridge between technology and business goals.

I am currently pursuing a degree in Systems Analysis and Development, which has significantly expanded my technical foundation. The course has provided valuable knowledge in programming, DevOps practices and effective communication between technical and business teams.

If you are looking for someone who listens, understands and solves problems before they reach your team, I am ready to help. Let us make technology your ally for sustainable growth.

Technologies and Experience

Experience with a wide range of technologies and tools for efficient development and technical support.

Frontend

Vue.js

2 years

Progressive JavaScript framework for building user interfaces

Frontend

React.js

3 years

JavaScript library for building interactive user interfaces

Database

MongoDB

3 years

High-performance NoSQL document-oriented database

Database

MySQL

3 years

Widely used open-source relational database management system

Programming

JavaScript

3 years

Essential programming language for web development

Programming

TypeScript

3 years

JavaScript superset that adds static typing

Programming

Python

2 years

Versatile language for development, automation, and data analysis

Backend

.NET

1 years

Microsoft framework for application development

Cloud

AWS

3 years

Cloud services platform for hosting and infrastructure

Tools

Jira

3 years

Project management and issue tracking tool

Monitoring

Datadog

3 years

Monitoring and analytics platform for applications and infrastructure

Monitoring

Grafana

1 years

Metrics visualization and monitoring platform

DevOps

Git

3 years

Version control system for code management

DevOps

NPM

3 years

Package manager for the JavaScript ecosystem

Frontend

HTML

3 years

Markup language for structuring web content

Frontend

CSS

3 years

Styling language for web interface design

Mobile

Kotlin

1 years

Modern language for Android and cross-platform development

Database

PL/SQL

1 years

Procedural language for Oracle databases

DevOps

Linux

2 years

Open-source operating system for servers and development

Backend

Spring Boot

1 years

Java framework for enterprise application development

DevOps

Docker

1 years

Containerization platform for development and deployment

Projects and Results

Datadog Observability Dashboards
Implementation of dashboards that provided complete visibility during Black Friday, identifying real-time issues with seller partners in the hub.
Jira Support Structure
Built from scratch a ticket and support process via Jira platform, ensuring more organized and efficient workflows for customers and internal team.
Containment Processes for Integrations
Development of scripts and processes to contain failures in integrations with multiple hubs, maintaining stable operations until permanent resolution.

Skills

Soft Skills
Active Listening
Organization
Communication
Teamwork
Problem Solving
Technical Skills
ITIL
Remote Support
Networks
Scripting
Troubleshooting

Certifications

Systems Analyst and Developer by FIAP 2025

2025

Node.JS REST API with Express and MongoDB

2023

Microservices: Design Patterns and Concepts

2023

Communication: How to Express Yourself Well and Be Understood

2025