Joao Azevedo

Software Engineer

I don't just write code

|
Joao Azevedo - Software Engineer

AboutMe

It's all about solving problems, not implementing features.

Marty Cagan

Software Engineer with 7+ years of experience helping companies build scalable, high-performance solutions that drive real business value.

Currently at VTurb, I lead video player development for a custom video platform that processes thousands of petabytes monthly. I cut load times by 0%, reduced bundle sizes by 0%, and contributed ideas that helped attract more clients to the platform.

Before that, I built POCs for VTEX and Shopify that directly contributed to a multi-million dollar acquisition offer. I delivered international e-commerce projects for brands like Dengo Europe, Yamamay, and Carpisa, achieving 0% improvement in website loading speeds.

What I bring to teams: solving complex technical challenges, optimizing systems for performance at scale, and building features that directly contribute to revenue growth. I thrive in remote, cross-cultural environments and every line of code I write aligns with business objectives.

RealImpact

0%

Faster Load Time

Reduced video first-frame load time through strategic optimizations including lazy loading, caching strategies, and efficient data fetching

0%

Lighter Bundle

15% initial reduction + 42% through dynamic imports and code-splitting

M+

Deal Value

POCs for VTEX and Shopify contributing to multi-million dollar opportunities

0%

Performance Boost

Comprehensive website optimizations improving page load speed, rendering performance, and user experience across multiple projects

My Awards

Fatec Jahu Hackathon

Top 32019

Top 3 in my 1st semester. I was happy with the result, but I left knowing there was a lot more to learn than I had imagined. It's what made me truly start pushing myself.

Paysmart Hackathon

Top 32020

Top 3 with a personal finance app featuring cashback and investment pockets, concepts that in 2020 were not yet explored by digital banks.

Facebook (Meta) Hackathon

Top 32021

Top 3 with a solution that used AI to identify paths for preventing conflicts, hunger, and wars, connecting data with the best available strategies.

VTurb Recognition Award

Highlight2024

Recognized for going above and beyond on deliveries, collaborating with the team, and contributing with technical improvements in performance and scalability that helped drive business growth.

Technical Stack

Technologies I work with daily

techStack.config.js
1
const techStack = {
2
languages: [
3
"JavaScript", "TypeScript", "Go", "Ruby", "Java"
4
],
5
frontend: [
6
"React", "Next.js", "Vue.js", "UMI.js", "Vite.js"
7
],
8
backend: [
9
"Node.js", "Ruby on Rails", "Spring Boot", "Microservices"
10
],
11
video: [
12
"HTML5 Video API", "HLS/DASH", "Video Processing"
13
],
14
data: [
15
"PostgreSQL", "MongoDB", "MySQL", "Redis"
16
],
17
infrastructure: [
18
"Docker", "Kubernetes", "AWS", "CI/CD"
19
],
20
platforms: [
21
"VTEX", "Shopify", "REST APIs"
22
]
23
};
24
// Building high-performance applications at scale
UTF-8JavaScriptLn 24, Col 60

Featured Projects

High-impact projects showcasing technical expertise and business value delivery

modern video streaming platform interface with analytics dashboard, dark theme, futuristic design

VTurb Video Platform

High-Scale Video Processing System

Production

Custom video platform for digital marketing processing thousands of petabytes of data monthly. Built with modern architecture for scalability and performance.

JavaScriptNode.jsVideo ProcessingAWS
PetabytesEnterprise
modern e-commerce platform interface with multiple brand stores, clean design, shopping interface

International E-commerce

Multi-Brand Platform Development

Global

Led development of international e-commerce projects including Dengo Europe, Yamamay, and Carpisa, collaborating with global engineering teams.

RubyJavaScriptVTEXShopify
3 BrandsE-commerce
proof of concept software interface with charts and data visualization, modern dashboard design

Acquisition POC

Multimillion-Dollar Prototype

High Impact

Created proof-of-concept applications that contributed to a multimillion-dollar acquisition offer, demonstrating innovative technical solutions.

JavaGoMicroservicesCloud
M+ ValueInnovation
performance optimization dashboard with speed metrics and analytics, modern interface design

Performance Optimization

30% Speed Improvement

Optimization

Implemented comprehensive performance improvements across multiple applications, achieving significant loading speed boosts and enhanced user experience.

JavaScriptCachingDatabaseCDN
30% FasterPerformance

Professional Experience

Career journey through innovative companies and impactful roles

Video Player Specialist & Lead

Current

VTurb

4 years

Leading the team responsible for video player evolution and performance. Ensuring fast, stable playback experience across browsers and environments including WebViews and social apps. Hands-on development and architecture focused on JavaScript and HTML5 Video API, monitoring key metrics like TTFF, buffering, and playrate. Making roadmap decisions in partnership with CTO and PM.

Key Responsibilities

  • Leading video player team and roadmap
  • Architecture design for HLS/DASH streaming
  • Performance monitoring and optimization
  • Cross-browser compatibility assurance

Impact

  • Reduced video first-frame load time by 64% through TTFF optimization
  • Decreased player bundle size by 57% via dynamic imports and code-splitting
  • Contributed ideas and features that helped attract more clients to the platform

Web Developer

Previous

Codeby

1 year 2 months

Developed e-commerce solutions using VTEX and Shopify platforms. Created custom POCs that introduced innovations to VTEX — one POC for Grupo Puerto de Cartagena directly contributed to a multi-million dollar acquisition offer from Keyrus. Built Plug & Play applications, migrated legacy sites to modern tech stacks, and achieved 30% improvement in loading speeds.

Key Responsibilities

  • Developed e-commerce solutions for VTEX and Shopify
  • Created custom POCs introducing platform innovations
  • Built Plug & Play applications for e-commerce ecosystems
  • Migrated legacy sites to modern tech stacks

Impact

  • Improved client website loading speeds by 30%
  • Created POC for Grupo Puerto de Cartagena that contributed to multi-million dollar acquisition offer from Keyrus
  • Successfully delivered international e-commerce projects: Dengo Europe, Yamamay, Carpisa

Software Engineer

Previous

JN Moura Sistemas de Gestão

11 months

First professional IT experience — started as Web Developer intern, promoted to full-time Software Engineer. Worked on main company projects including SiSMoura management system and virtual fitting room project. Also worked as QA ensuring software quality and created documentation that helped both new and experienced developers.

Key Responsibilities

  • SiSMoura management system development
  • Virtual fitting room project development
  • Quality assurance and testing
  • Technical documentation creation

Impact

  • Created documentation that accelerated team delivery for both new and experienced developers
  • Advanced the virtual fitting room project with new features and calculations
  • Promoted from intern to full-time Software Engineer

Algorithms Teaching Assistant

Academic

Fatec Jahu - São Paulo State Technological College

4 months

Paid position assisting students in algorithms and data structures. Helped clarify doubts during and after classes, contributing to visible improvements in student grades and increased participation and engagement in the classroom.

Teaching Focus

  • Algorithm design and analysis
  • Data structures implementation
  • Problem-solving methodologies
  • Code optimization techniques

Impact

  • Improved student academic performance
  • Increased classroom participation
  • Enhanced student engagement
  • Clarified complex programming concepts

Let's Connect

Ready to collaborate on innovative projects and build something amazing together

LinkedIn is Where I'm Most Active

Whether you have a project in mind, want to discuss technology, or simply connect - LinkedIn is the best place to reach me. Let's start a conversation!

Connect on LinkedIn

Quick Response

Usually within 24 hours

Remote Ready

International collaboration

Open to Opportunities

New challenges welcome

“The best projects start with a simple conversation. Let's make something remarkable together.”