About Me
Architecting high-performance web solutions for over 6 years
Senior Full Stack Engineer with 6+ years optimizing APIs and leading React.js development. Specialized in N+1 query reduction, jQuery → React.js modernization, and solutions scaling to thousands of users.
Harvard CS50x • React.js • Ruby on Rails • AWS • PostgreSQL
React.js, Next.js
Rails, Node.js
AWS, Docker
PostgreSQL, Redis
Professional Bio
For journalists 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.
Professional Experience
6+ years building scalable solutions
Senior Full Stack Engineer
- • Optimized APIs: DB indexes and N+1 queries in Rails
- • Built modern React.js dashboards (jQuery → React)
- • Code reviews and pair programming for quality standards
Full Stack Developer
- • Mentored junior devs on Rails and React best practices
- • Optimized dashboard: DB queries and page caching
Software Engineer
- • React Query for caching and prefetch (faster charts)
- • TypeScript to reduce bugs in critical APIs
- • React portal replacing jQuery (thousands of 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.