Cleyson Leal — Senior Frontend Engineer and Technology Manager

Technology Manager

Tropiko • Brazil · Remote

Jun 2025 – Jun 2026 • 1 yr

• •Led technical direction for a B2B platform focused on sustainable supply chains, ESG traceability, and predictive analytics.
• •Drove integration and alignment across product, design, and engineering teams.
• •Guided platform evolution with a focus on scalability, quality, and continuous delivery.

Frontend Lead

Tropiko • Brazil · Remote

Apr 2024 – Jun 2025 • 1 yr 2 mos

• •Led frontend architecture with a focus on scalability, performance, and maintainability.
• •Implemented AI-assisted development workflows to accelerate delivery, automate code reviews, and ensure adherence to platform architectural standards.

Senior Frontend Engineer

EstrelaBet • Brazil · Remote

Aug 2023 – Sep 2024 • 1 yr 1 mo

• •Developed high-traffic consumer-facing web applications for an entertainment and gaming platform.
• •Drove frontend architecture improvements focused on scalability, reliability, performance, and code quality using modern patterns and automated testing.

Senior Frontend Engineer

Dropull • Brazil · Remote

Aug 2022 – May 2023 • 9 mos

• •Developed frontend for a platform focused on the metaverse and immersive digital experiences.
• •Partnered with product and engineering to define and evolve reusable components and scalable flows, prioritizing performance, maintainability, and user experience.

Senior Web3 Frontend Engineer

Nftfy • Brazil · Remote

Feb 2022 – Jun 2022 • 4 mos

• •Built Web3 experiences and NFT marketplaces for content creators using React.
• •Structured wallet integrations and blockchain flows prioritizing usability, performance, and reliability.

Senior Frontend Engineer

Barkyn • Portugal · Remote

Jul 2021 – Apr 2022 • 9 mos

• •Developed subscription and e-commerce experiences for a pet health startup operating across multiple European countries.
• •Collaborated with design and product teams on conversion-focused interfaces, user experience, and visual consistency.

Senior Front-end Developer

Significa • Portugal · Remote

Feb 2021 – Jul 2022 • 1 yr 5 mos

• •Built user-experience-focused digital solutions for Significa clients.
• •Translated UX research and iterative design flows into performant, scalable, production-ready frontend applications.

FullStack Developer

Hurb • Rio de Janeiro, Brazil

Jan 2019 – Feb 2021 • 2 yrs 1 mo

• •Developed features for a global travel platform operating in 35+ countries.
• •Contributed to Project Macedonia, responsible for platform internationalization and architecture evolution to meet LGPD, compliance, and global operations requirements.

Fullstack Developer

Indeva Tecnologia (VTEX) • Teresópolis, Brazil

Sep 2016 – Sep 2018 • 2 yrs

Front End Developer

Studio Wethink • Brazil · Remote

Nov 2013 – Aug 2014 • 9 mos

Front End Developer

DIGICRIATIVA • Teresópolis, Brazil

Nov 2012 – Oct 2013 • 11 mos

“I had the privilege of working closely with Cleyson (Cley) at Tropiko, where I serve as CEO, and I can say without hesitation that he's one of the most complete professionals I've worked with.

What truly sets Cley apart is his ability to connect engineering work to business strategy. He asked the right questions, challenged assumptions, and consistently pushed the team to understand why we were building what we were building, not just how. That kind of thinking directly shaped the quality of our product and the decisions behind it.

His mindset was also contagious. The way he engaged with the broader company context raised the bar for everyone around him. The team became sharper, more aligned, and more intentional because of his presence.

Beyond that, Cley is someone you can fully count on when things get hard. He shows up consistently, handles pressure with composure, and earns trust through actions, not words.

Any team would be lucky to have him.”

“When the situation called for speed, Cley set the pace; when it called for quality, he proactively took ownership, ensuring the necessary technical standards in practice. He stands out for thinking beyond software engineering, bringing a critical and constructive perspective on the product and the business.

Cley is synonymous with commitment, reliability, and strong performance.”

“A professional who doesn't dedicate himself exclusively to coding. Cleyson goes beyond the basic skills every developer should have and demonstrates excellent aptitude for leadership. In addition to commitment to tasks and deliverables, he has a strong strategic vision, which is essential for a product.”

“Competent professional, connected with market trends. Motivated and focused on team goals. Approachable person who shares experiences and knowledge in a simple way. Full of good humor and contributes greatly to a harmonious work environment.”