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@eltonokawa
Senior full-stack developer specializing in scalable systems, high test coverage, and performance optimization.
BrazilI am a senior full-stack developer with six years of professional experience building and maintaining large, long-lived codebases. I graduated from POLI‑USP with a final grade of 8.7/10 and received an award from the Engineering Association of São Paulo for outstanding performance.
My work spans backend and frontend technologies including Node.js, NestJS, React, Angular and cloud platforms such as GCP and AWS. I have delivered projects with high test coverage, designed microservices, and shipped systems handling thousands of requests per day.
Notable achievements include reducing an API save response time from ~1000ms to ~100ms, cutting component validation time by 80%, producing production-ready micro-frontend hosting, and building stable A/B testing and release pipelines used across multiple games. I also authored extensive technical documentation to onboard and support teams.
I thrive in collaborative, English-speaking environments, enjoy optimizing performance and reliability, and focus on clean architecture, automated testing, and pragmatic problem-solving to deliver measurable business impact.
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Work history, roles, and key accomplishments
Jitterbit
Sep 2024 - Present (1 year 2 months)
Reduced save API response time from ~1000ms to ~100ms and cut component validation time by 80% while contributing to a 9-year codebase across a 10-person engineering team.
SpaceSheepGames
Jan 2021 - Sep 2023 (2 years 8 months)
Built an A/B Test Manager and production micro-frontend hosting platform, enabled signing/publishing pipelines for ~10 games and maintained zero production errors for internal tools.
FDTE
May 2020 - Sep 2020 (4 months)
Created Java REST APIs with automated tests, ensuring 100% of new features were tested and reviewed ~75% of team pull requests to improve code quality.
Taqtile Brazil
Sep 2019 - Jan 2020 (4 months)
Implemented backend features for an internal retail app using Node.js, Typescript and PostgreSQL and raised test coverage to ~80% for the existing codebase.
Visagio Tecnologia
Jan 2019 - May 2019 (4 months)
Developed an invoice management tool in Ruby on Rails used by ~50 users and automated invoice downloads via Selenium for five providers without APIs.
Tapps Games
May 2018 - Sep 2018 (4 months)
Updated and tested three internal game packages and participated in peer code reviews to improve internal library reliability.
Degrees, certifications, and relevant coursework
EPBachelor degree, Computer Engineering
2016 - 2020
Grade: 8.7/10
Bachelor degree in Computer Engineering from POLI-USP, graduated with final grade 8.7/10 and received an award from the Engineering Association of São Paulo for outstanding performance.
Software and tools used professionally
BrazilYou can contact Elton and 90k+ other talented remote workers on Himalayas.
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