Frontend Engineer

Responsibilities

Develop, deploy, and maintain scalable, responsive web applications using modern front-end technologies (focus on desktop with some mobile, which could evolve with time).
Collaborate with product managers and UX/UI designers to understand requirements, ensure its technical feasibility, and translate them into technical, user-friendly solutions.
Maintain and improve the company’s front-end codebase by refactoring legacy code and implementing best practices ensuring performance across multiple devices and browsers.
Participate in code reviews, ensuring best practices in front-end development.
Identify and troubleshoot front-end issues to ensure a seamless user experience.
Write reusable code and libraries for future use, optimizing components for maximum speed.

Requisitos
Required Qualifications

Bachelor's degree in Computer Science, Computer Engineering, or related technical discipline.
Proven professional experience (3+ years) in front-end development, preferably in product-focused companies and working in complex projects alongside Product/UX/UI teams.
Proficiency in HTML, CSS, JavaScript and TypeScript, with expertise on React
Familiarity with RESTful APIs and working alongside back-end development teams.
Experience working with authentication and authorization mechanisms using OAuth, JWT, or SAML.
Experience with testing frameworks (e.g., Jest, Cypress) for front-end applications.
Experience with version control and project management systems, particularly Git and GitHub.
Ability to work independently as well as part of a team, with strong problem-solving skills and attention to detail.
Experience working with modern async communication and documentation tools (e.g., Slack, Notion)
Ability to travel as needed to meet the team.
English - Advanced (Reading, Comprehension, and Writing).
Portuguese - Fluent

Preferred Qualifications

Relevant hands-on experience with desktop-first products in a tech-intensive industry, such as dashboards featuring complex data visualizations and interactive charts
Experience with Vite, Webpack, Babel, and other build tools for optimizing front-end workflows.
Experience in building responsive layouts and ensuring cross-browser compatibility.
Experience with SSR-capable frameworks (eg., Next.js, Remix
Experience with secure data storage and handling sensitive information (e.g., encryption, tokenization).
Experience implementing secure front-end authentication/session patterns to protect user data, including proper input sanitization, secure JWT/cookie handling, safe browser storage choices and alignment with OWASP guidance.
Prior experience in an early-stage, high-growth and fast-paced startup (or similar) environment.