KYONRU
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Say it “kee-on-roo”

I'm kyonru

Mobile developer during the day, game dev at night! I love learning and exploring new things!

Robert Amarante holding a pixel-art face in front of his own
Robert AmaranteSenior Fullstack Engineer

I'm Robert Amarante, a senior fullstack engineer working across mobile, web, backend systems, and game development.

I enjoy following an idea through the entire stack: shaping the experience people touch, building the services behind it, and experimenting with the playful details that make it memorable.

Abbott

Senior Software Engineer

FromTo

Description

  • Develop features end to end for Libre by Abbott, from analyzing requirements and creating technical spikes to implementation, documentation, and release support.
  • Coordinate with multiple teams across countries and time zones to resolve dependencies and turn early investigation into epics.
  • Review pull requests across React Native, React, and native codebases, paying close attention to code quality, UI, and usability.
  • Support QA engineers with automation development and write mobile automation tests using Robot Framework and Appium.
  • Create internal automation tools and use agentic AI workflows to support mobile development.
  • Work with BLE devices, Apple Watch connectivity, and Go libraries compiled into C for integration with native mobile code.
  • Help junior developers understand and navigate their assigned work, and serve as a reliable source for difficult bug fixes.
  • Care deeply about doing things right, not only making things work.

Projects

Technologies

  • React Native
  • React
  • Go
  • C
  • iOS
  • Android
  • BLE
  • Apple Watch
  • Robot Framework
  • Appium
Swovo(formerly Flatirons)

Senior Software Engineer

FromTo

Description

  • Served as the technical lead for teams of 3+ at Swovo, working directly with clients.
  • Responsibilities included project architecture, technology, and infrastructure decision-making.
  • Led development efforts across mobile, backend, and web platforms for healthcare and public transportation products.
  • Delivered quality code and reviewed the code of junior and mid-level engineers.
  • Primarily served as a senior software engineer (Mobile + Backend) with expertise in React Native and NestJS.
  • Served as the company’s React Native specialist, driving key technical decisions and solving complex cross-platform challenges.
  • Collaborated closely with clients, designers, and stakeholders to deliver scalable, high-quality user experiences.
  • Took on the role of Mobile DevOps for React Native projects:
  • Dockerized projects to streamline development environments.
  • Implemented CI/CD pipelines using Fastlane.
  • Wrote comprehensive developer documentation.
  • Automated various development processes.
  • Introduced new technologies and established code standards.
  • Conducted lightning talks to share knowledge and best practices with the team.

Projects

Technologies

  • React Native
  • Next.js
  • PostgreSQL
  • Sentry
  • Instabug
  • Segment
  • OCPI
  • Stripe
  • NestJS
  • Gatsby
  • React
  • Datadog
  • Firebase
  • Kubernetes
  • AWS
  • Tailwind CSS
GBH(again)

Senior Software Engineer

FromTo

Description

  • Worked at GBH on two separate occasions.
  • After a period as a freelance developer, returned to GBH as a mid software engineer and later promoted to senior software engineer.
  • Designed and implemented low-level application architecture focused on scalability, maintainability, and performance.
  • Led code quality improvements through refactoring initiatives, dependency updates, and development standards adoption.
  • Delivered pixel-perfect user experiences across web and mobile platforms with strong attention to UI consistency and usability.
  • Acted as a React Native specialist, troubleshooting complex iOS and Android native integration issues and supporting team members.
  • Responsibilities varied by client and time period, encompassing:
  • Cross-platform development using React Native.
  • Web development using ReactJS.
  • API development using ExpressJS.
  • Contributed to diverse projects, adapting to different client needs and technology stacks.

Projects

Technologies

  • React Native
  • PostgreSQL
  • Sentry
  • Segment
  • React
  • Kubernetes
  • GCP
  • Node.js
  • Elixir
ENFOCO, SRL

Freelance Mobile Developer

FromTo

Description

  • Created a mobile app for one of Enfoco SRL's clients.
  • Served as technical lead for the development of a local insurance mobile application using React Native.
  • Developed new features to enhance application functionality.
  • Fixed bugs to ensure smooth and reliable app performance.
  • Contributed to UI design decisions to improve user experience.
  • Contributed to API design to ensure seamless integration and performance.
  • Developed a long-term relationship with the client, providing insights about React Native development.
  • Trained and supervised junior developers, sharing knowledge and best practices.

Projects

Technologies

  • React Native
  • Firebase
  • Java
  • Swift
Standups.io

Freelance Mobile Developer

FromTo

Description

  • Worked as a mobile developer to create the MVP using React Native.
  • Developed new features to enhance application functionality.
  • Integrated camera, audio, and video features into the applications.
  • Fixed bugs to ensure smooth and reliable app performance.
  • Collaborated closely with the client to understand their needs and deliver customized solutions.
  • Provided technical support, addressing and resolving any issues promptly.

Projects

Technologies

  • React Native
  • Firebase
  • Java
  • Swift
  • Node.js
Freelance

Freelance Developer

FromTo

Description

  • Worked as a freelance developer for a diverse range of clients, specializing in mobile application development.
  • Created innovative and user-friendly apps for both iOS and Android platforms.
  • Collaborated closely with clients to understand their needs and deliver customized solutions.
  • Integrated the latest technologies and best practices to ensure high performance and seamless user experiences.

Projects

Technologies

  • React Native
GBH

Software Engineer - Mobile Applications

FromTo

Description

  • Initially joined early in my career, gaining foundational knowledge in software development.
  • Led technical implementation for individual projects, helping drive architecture and delivery decisions.
  • Mentored and onboarded new developers into the React Native ecosystem and project workflows.
  • Responsibilities varied by client and time period, encompassing:
  • Cross-platform development using React Native.
  • Web development using ReactJS.
  • API development using ExpressJS.
  • Contributed to diverse projects, adapting to different client needs and technology stacks.

Projects

Technologies

  • React Native
  • Firebase
  • Java
  • Swift
Neural Technology Solutions, SRL

Software Developer Intern

FromTo

Description

  • Developed web interfaces using Angular 2 in a collaborative development environment.
  • Built pages with accessibility and internationalization support to improve usability across different users and regions.
  • Used Git for version control and team collaboration across ongoing development tasks.
  • Contributed to API documentation efforts, improving code maintainability and developer onboarding.
  • Gained hands-on experience working within a professional software engineering workflow and agile team environment.

Projects

Technologies

  • Angular 2
  • Git
  • APIs

Under the hood.

The languages, platforms, and tools I use to take ideas from sketch to release.

Programming languages

  • TypeScript
  • JavaScript
  • Swift
  • Kotlin
  • Java
  • C#
  • Lua
  • Tua
  • GDScript

Mobile

  • React Native
  • iOS
  • Android
  • Tauri

Web

  • React
  • Next.js
  • Vite

Backend

  • Node.js
  • NestJS
  • PostgreSQL

Games

  • LÖVE2D
  • Unity
  • Godot
  • PICO-8

Experience

Companies, roles, and projects across my professional work.

Materializing ideas gives me purpose.