Front-end Developer – Mid-level

🕒 April 23

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Arista Digital

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2002

☁️ SaaS

🤝 B2B

👥 HR Tech

SaaS • B2B • HR Tech

Arista Digital is a São Paulo–based venture builder that creates, invests in and operates technology-driven service platforms with high automation aimed at simplifying operations for businesses and employees. With 20+ years of experience, it develops SaaS platforms across HR and benefits management (e. g. , Beneo), multichannel contact-center automation (Olos), payroll and payments for domestic workers, loyalty and marketing intelligence solutions, and other enterprise-focused services to scale businesses and improve customer and employee experiences.

📋 Description

• Develop modern, high-performance, responsive interfaces using Next.js. • Ensure code quality through unit and integration tests. • Contribute to the architecture of reusable, scalable components. • Collaborate with product, design, and back-end teams to build end-to-end solutions. • Work with a focus on performance, security, accessibility, and UX best practices. • Contribute to secure development practices, protecting the application against common vulnerabilities (XSS, CSRF, etc.). • Participate in code reviews with attention to code quality and security.

🎯 Requirements

• Strong experience with React.js and Next.js. • Experience with SSR/SSG in Next.js. • Advanced knowledge of JavaScript/TypeScript. • Experience with unit testing (Jest, Testing Library, or similar). • Proficiency in HTML and CSS (Sass, Tailwind, or styled-components). • Knowledge of authentication, authorization, and secure storage. • Understanding and application of the software development lifecycle (SDLC) and secure development lifecycle (SDL). • Experience consuming REST and GraphQL APIs. • Nice-to-haves (not required but valued): • Web performance knowledge (Lighthouse, Web Vitals). • Familiarity with CI/CD and automated pipelines. • Experience with design systems. • Basic knowledge of the OWASP Top 10 as applied to front-end applications. • Knowledge of React Native with Expo.