Open to opportunities

Marcus Holanda

@marcusholanda

Message

Results-driven Frontend & Mobile Engineer with 5+ years of experience building scalable web and mobile applications.

Brazil

Message

What I'm looking for

I seek frontend/mobile roles where I can lead architecture, implement CI/CD and scalable solutions, mentor teams, and deliver high‑impact multi‑platform products.

Results-driven Frontend & Mobile Engineer with 5+ years of experience building scalable web and mobile applications using React, React Native, Flutter, and Next.js. I specialize in turning complex problems into clean, high-performance products with strong architecture, maintainability, and great user experience.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

BRQ

Nov 2025 - Present (2 months)

Focused on front-end development for GOL's Smiles app using React Native and React, contributing to mobile features and platform stability for one of Brazil's largest airlines.

React Native React JavaScript TypeScript CI CD Expo Performance Optimization

Frontend Engineer

Fortics

May 2022 - Oct 2025 (3 years 5 months)

Led architecture and development of a multi-platform web and mobile app from scratch, implemented WebRTC/SIP voice, white-labeling, automated CI/CD and unit testing, and resolved critical partner issues to retain contracts.

React React Native Flutter Next.js Redux GraphQL REST CI CD Fastlane

Frontend Engineer

Coopersystem

Jan 2024 - Sep 2025 (1 year 8 months)

Developed and deployed web and mobile applications including a high-performance scheduling system and an electronic time-tracking platform used by hundreds of concurrent users during major events.

Next.js React Native Redux Zustand TypeScript REST PostgreSQL Docker Performance Optimization

Frontend Engineer

Supera

Nov 2021 - May 2022 (6 months)

Maintained and enhanced legacy applications, delivered iterative features and performance improvements for clients including Algar Telecom and government portal projects, improving client satisfaction.

Next.js React Native Redux Context API TypeScript REST styled components Testing

QA Tester

PaP

Apr 2021 - Oct 2021 (6 months)

Performed manual and automated tests using Detox and Appium, and integrated testing workflows with Microsoft App Center to ensure hybrid app quality for Play Store and App Store releases.

Manual Testing Detox Appium Test Automation Postman QA Processes Integration Testing

Education

Degrees, certifications, and relevant coursework

Centro Universitário Estácio de Brasília

Bachelor of Science, Analysis and Development

Completed a degree in Analysis and Development with graduation in February 2025, focusing on software development and application engineering concepts.