About Me
Architecting high-performance web solutions for over 6 years
Executive Summary
Hey, I'm Harlley Bastos
Senior Full Stack Engineer with 6+ years of experience optimizing API performance and leading modern React.js component development. Specialized in reducing N+1 queries and implementing solutions that scale to thousands of users.
Proven track record in legacy system modernization, performance optimization and junior team mentoring. Harvard CS50x graduate with expertise in React.js, Ruby on Rails, AWS.
⚡Core Skills
React.js, Next.js, React Native
Ruby on Rails, Node.js
AWS, Docker, Lambda
PostgreSQL, MongoDB, Redis
Bio
For journalists, podcast hosts, and event organizers
Harlley Bastos is a Brazilian Senior Full Stack Engineer based in Piracicaba, São Paulo. With over 6 years of experience, he specializes in architecting high-performance web applications using React.js, Ruby on Rails, and AWS solutions. Previously worked at DevSquad, where he led performance optimization initiatives and mentored junior developers. Graduated in System Analysis and Development from Centro Universitário Claretiano and with a specialization in Computer Science from Harvard University, Harlley combines solid technical knowledge with practical experience in production environments.
Career
Over 6 years building scalable solutions and leading teams
Senior Full Stack Engineer
Sep 2023 — Jan 2025 • 1 yr 5 mos
- 🚀Optimized API performance by implementing database indexes and resolving N+1 queries in Ruby on Rails
- ⚛️Developed new React.js dashboard components for transaction monitoring, replacing legacy jQuery interfaces
Full Stack Developer
Feb 2023 — Sep 2023 • 7 mos
- 👥Mentored junior developers on Rails and React best practices through code reviews and pair programming sessions
- 📊Enhanced community dashboard performance by optimizing database queries and integrating page caching
Software Engineer
Feb 2020 — Feb 2023 • 3 yrs
- 📈Improved chart rendering efficiency by implementing React Query for API caching and data prefetching
- 🔧Reduced bug frequency by introducing TypeScript interfaces for critical data models and API responses
- 🏗️Built a customer portal using React to replace legacy jQuery dashboard, supporting thousands of daily users
Education
Continuous education from world-renowned institutions
CS50x - Introduction to Computer Science
Jan 2022 — Dec 2022
System Analysis and Development
Jan 2019 — Jun 2021
Let's Build Something Amazing Together
Ready to take your project to the next level? I'm here to help you create scalable, high-performance solutions.