Senior Frontend Engineer

Posted 4 days agoViewed

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💎 Seniority level: Senior, 5+ years

📍 Location: Argentina

🏢 Company: Marsie

🗣️ Languages: English, Spanish

⏳ Experience: 5+ years

🪄 Skills: Backend DevelopmentNode.jsFrontend DevelopmentCSSJavascriptReact.jsTypeScriptCI/CDRESTful APIs

Requirements:

5+ years of experience in front-end development, with a focus on complex single-page applications (SPAs) and a proven track record of launching consumer-facing products
Expert-level proficiency in JavaScript/TypeScript, React, and modern CSS
Strong understanding of web performance optimization techniques, scalability, and security
Experience with front-end testing frameworks (e.g., Jest, React Testing Library, Cypress)
3+ years of experience in backend development, with a focus on building scalable, distributed systems
Proficiency in one or more modern programming languages (e.g., Node.js, Java, Python)

Responsibilities:

Implement high-performance, scalable front-end solutions using modern web technologies
Lead the design and development of reusable UI components and libraries to ensure consistency across a platform
Optimize application performance, focusing on load time, responsiveness, and efficient resource usage, particularly crucial for data-intensive applications
Collaborate with UX/UI designers to translate wireframes and mockups into responsive, interactive features that meet the needs of the final users
Implement and maintain robust front-end testing strategies, including unit tests and end-to-end tests, to ensure the reliability of critical applications
Work closely with back-end engineering teams to integrate front-end applications with APIs and services, ensuring seamless data flow and functionality

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