João Costa
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João Costa Email & Phone Number

Application Security Engineer at Mercado Livre
Location: Salvador, Bahia, Brazil 5 work roles 2 schools
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✓ Verified August 2026 3 data sources Profile completeness 86%

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Current company
Mercado Livre
Role
Application Security Engineer
Location
Salvador, Bahia, Brazil
Company size
30507 employees

Who is João Costa? Overview

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Quick answer

João Costa is listed as Application Security Engineer at Mercado Livre, a with 30507 employees, based in Salvador, Bahia, Brazil. AeroLeads shows a matched LinkedIn profile for João Costa.

João Costa previously worked as Application Security Engineer - Pleno at Pagbank and Application Security Analyst at Esecurity - Cyber Security. João Costa holds Bacharelado, Computer Science from Universidade Anhanguera São Paulo.

Company email context

Email format at Mercado Livre

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Mercado Livre

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Profile bio

About João Costa

👋 Saudações! Sou João, tenho 20 anos e atuo como AppSec realizando pentests em aplicações web, aplicativos Android e APIs, além de auxiliar posteriormente a sanitizar diretamente as vulnerabilidades encontradas.🎯Experiência com SAST, DAST e secure coding.🔍 Estou concentrando meus estudos em Android e Web3 Security.💻 Além da especialização em Segurança, sou um desenvolvedor FullStack, especializado em JavaScript com React, Next e Express. Utilizo principalmente Golang e Python para criar minhas próprias ferramentas de reconhecimento e auditoria de aplicações.🌟 Também possuo habilidades em diversas outras linguagens, como Kotlin, Java, PHP, C# e Rust.🔗 Meu GitHub: https://github.com/Jhounx

Current workplace

João Costa's current company

Company context helps verify the profile and gives searchers a useful next step.

Mercado Livre
Mercado Livre
Application Security Engineer
São Paulo, Brazil
Website
mercadolivre.com
Employees
30507
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Company profile
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5 roles

João Costa work experience

A career timeline built from the work history available for this profile.

Application Security Engineer - Pleno

Current
Pagbank
Jul 2024 - Present

Security Researcher

Intigriti

https://app.intigriti.com/profile/jhounx

Jul 2021 - Dec 2022

Full Stack Developer

Signo Web
Jul 2022 - Sep 2022
Team & coworkers

Colleagues at Mercado Livre

Other employees you can reach at mercadolivre.com. View company contacts for 30507 employees →

BS Bruna Sales Bruna Sales Colleague at Mercado LivreSão Paulo, Brazil View → FB Fernando Belo Fernando Belo Colleague at Mercado LivreCuritiba, Paraná, Brazil View → TR Talita Rodrigues Talita Rodrigues Colleague at Mercado LivreSão Paulo, Brazil View → MS Michel Santiago Michel Santiago Colleague at Mercado LivreCarapicuíba, São Paulo, Brazil View → TC Thamires Carla Dos Santos Thamires Carla Dos Santos Colleague at Mercado LivreBetim, Minas Gerais, Brazil View → ED Edeias Dórea Edeias Dórea Colleague at Mercado LivreSão Paulo, Brazil View → NC Nicole Contheux Nicole Contheux Colleague at Mercado LivreSão Paulo, Brazil View → MC Melissa Chaves Melissa Chaves Colleague at Mercado LivreVotorantim, São Paulo, Brazil View → KG Kaio Gracia Kaio Gracia Colleague at Mercado LivreFlorianópolis, Santa Catarina, Brazil View → RO Rafael Oliveira Rafael Oliveira Colleague at Mercado LivreGuarulhos, São Paulo, Brazil View →
2 education records

João Costa education

FAQ

Frequently asked questions about João Costa

Quick answers generated from the profile data available on this page.

What company does João Costa work for?

João Costa works for Mercado Livre.

What is João Costa's role at Mercado Livre?

João Costa is listed as Application Security Engineer at Mercado Livre.

Where is João Costa based?

João Costa is based in Salvador, Bahia, Brazil while working with Mercado Livre.

What companies has João Costa worked for?

João Costa has worked for Mercado Livre, Pagbank, Esecurity - Cyber Security, Intigriti, and Signo Web.

Who are João Costa's colleagues at Mercado Livre?

João Costa's colleagues at Mercado Livre include Bruna Sales, Fernando Belo, Talita Rodrigues, Michel Santiago, and Thamires Carla Dos Santos.

How can I contact João Costa?

You can use AeroLeads to view verified contact signals for João Costa at Mercado Livre, including work email, phone, and LinkedIn data when available.

What schools did João Costa attend?

João Costa holds Bacharelado, Computer Science from Universidade Anhanguera São Paulo.

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