I'm a Full-Stack Software Engineer strong on back-end development using Node.js and TypeScript, and building user interfaces with React. I design, develop, and maintain REST APIs, integrate relational databases, and collaborate through Git, code reviews, and CI/CD workflows. I have hands-on experience working in real-world product environments, including remote and freelance settings, with a strong emphasis on code quality, maintainability, and documentation. I enjoy bridging front-end and back-end boundaries, troubleshooting existing codebases, and delivering end-to-end features. I work well independently, contribute across teams, and continuously strive to improve performance and reliability through thoughtful architecture and maintainable code.…

Kenji Kinoshita

I'm a Full-Stack Software Engineer strong on back-end development using Node.js and TypeScript, and building user interfaces with React. I design, develop, and maintain REST APIs, integrate relational databases, and collaborate through Git, code reviews, and CI/CD workflows. I have hands-on experience working in real-world product environments, including remote and freelance settings, with a strong emphasis on code quality, maintainability, and documentation. I enjoy bridging front-end and back-end boundaries, troubleshooting existing codebases, and delivering end-to-end features. I work well independently, contribute across teams, and continuously strive to improve performance and reliability through thoughtful architecture and maintainable code.…

Available to hire

I’m a Full-Stack Software Engineer strong on back-end development using Node.js and TypeScript, and building user interfaces with React. I design, develop, and maintain REST APIs, integrate relational databases, and collaborate through Git, code reviews, and CI/CD workflows. I have hands-on experience working in real-world product environments, including remote and freelance settings, with a strong emphasis on code quality, maintainability, and documentation. I enjoy bridging front-end and back-end boundaries, troubleshooting existing codebases, and delivering end-to-end features.

I work well independently, contribute across teams, and continuously strive to improve performance and reliability through thoughtful architecture and maintainable code.

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Skills

Experience Level

API
Intermediate
React JS
Intermediate
JavaScript
Intermediate
PostgreSQL
Intermediate
Node.js
Intermediate
TypeScript
Intermediate
MongoDB
Beginner
Docker
Beginner
Express
Beginner

Language

English
Fluent
Portuguese
Fluent

Work Experience

Full Stack Developer (Backend-Focused) at Revoluna
January 1, 2025 - Present
Built and maintained backend REST APIs and server-side logic for a SaaS platform, supporting business-critical workflows and data integrity. Implemented features and enhancements across API routes, validations, and permission checks using JWT-based authorization. Troubleshot and resolved bugs across the codebase, improving stability through targeted refactors and clearer separation of responsibilities. Designed API integrations connecting product interfaces to backend services, handling loading states and inconsistent upstream data. Worked with PostgreSQL for data modeling and reliable reads/writes; applied consistent patterns for maintainable service layers. Improved overall performance by restructuring requests and backend responsibilities, reducing initial load time from 10–15s to ~3s. Collaborated via Git workflows (PRs, reviews, incremental delivery), and maintained documentation.
Product Designer (Mobile MVP + API Integration) at Revoluna
October 1, 2024 - January 1, 2025
Delivered a functional mobile MVP in 2 months using FlutterFlow (low-code) integrated with backend APIs and complex flows. Implemented custom code where needed and ensured reliable API consumption (pagination, infinite scroll), improving perceived performance. Close collaboration with engineering/product strengthened practical API thinking, edge-case handling, and delivery cadence.

Education

Bachelor's Degree in Economics at Mackenzie Presbyterian University
January 1, 2007 - July 1, 2011

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Computers & Electronics, Media & Entertainment, Other
    paper Email Verification

    Email verification REST API focused on security and best practices, stateless implementation with JWT, rate limiting, and configurable CORS.

    The goal is to demonstrate mastery in:

    REST API design — Well-defined endpoints, correct status codes, informative headers
    Security — CORS with allowlist, rate limiting, input validation, secure tokens
    Architecture — Separation of responsibilities, reusable modules, centralized configuration
    TypeScript — Strict mode, full typing, no any

    paper Revoluna Houston

    I led the evolution of an internal support tool into a production-grade operational platform to manage medical shift operations at scale.

    Houston is a web application used by hospitals and staffing teams to plan schedules, manage candidates, control attendance, and handle payments in one place.

    The platform supports complex workflows while remaining efficient, reliable, and easy to operate on a daily basis.

    https://www.twine.net/signin