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Roberto Kenzo Hamano

@robertokenzohamano

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Full-stack and Android engineer delivering secure, maintainable systems with strong testing and CI/CD.

Brazil

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What I'm looking for

I seek mid-level Android or full‑stack roles emphasizing clean architecture, strong testing and CI/CD practices, collaborative teams, and growth toward AppSec.

I am a software engineer with 3+ years building secure, high-performance Android apps and end-to-end full‑stack systems, focusing on clean architecture, SOLID principles, testing and CI/CD to improve delivery quality. I led integrations of biometric and document verification that reduced verification time by 90%, cut customer issues by 95% and raised approval rates by 5%.

I have experience across Kotlin, Java, PHP (Laravel), Vue.js and Angular, and I drive improvements in development lifecycle through unit tests, pipelines, code reviews and architecture documentation. I am targeting mid-level Android (Kotlin/KMP) or full‑stack roles with a longer-term interest in application security and measurable impact on reliability and maintainability.

Experience

Work history, roles, and key accomplishments

Current

Full-stack Software Engineer

Current

Instituto Verbena

Apr 2025 - Present (8 months)

Building an internal system to automate the full selection-process lifecycle and professionalized the development pipeline by implementing unit tests, GitLab CI/CD, code reviews, and architectural standards to reduce bugs and improve maintainability.

Laravel PHP Vue.Js PostgreSQL Gitlab CI Unit Testing Clean Code SOLID

Mobile Software Engineer

Iteris Consultoria e Software

May 2021 - Jul 2023 (2 years 2 months)

Developed account security and identity verification flows for mobile apps, integrating face-scan and document-validation SDKs to reduce analysis time by 90%, increase approval rate by 5%, and cut customer issues by 95%.

Android Kotlin Java SDK Security & Identity Flows Backend Driven Flows TDD Observability Agile Scrum

Software Developer Intern

Blue Tecnologia

Aug 2019 - Mar 2021 (1 year 7 months)

Translated client needs into requirements and implemented improvements to credit approval systems, streamlining evaluation processes and enabling real estate credit approval in up to 10 days.

Angular TypeScript Spring Boot SQL Process Improvement Firebase Agile

Development Intern

Supera Tecnologia

Feb 2019 - Jul 2019 (5 months)

Contributed features and bug fixes across multiple projects, gaining exposure to various frameworks and accelerating practical delivery skills.

JavaScript HTML CSS React Native PHP Laravel Git

Education

Degrees, certifications, and relevant coursework

Universidade Federal de Goiás

Bachelor of Engineering, Software Engineering

2017 - 2022

Completed a Bachelor's degree in Software Engineering with coursework and practical projects focused on software development, architecture, and testing.