Job Title: Senior Frontend Developer (JavaScript, Next.js, React, AI Tools, A/B Testing)
Location: Remote – Latin America Preferred (aligned with Spanish business hours 'CET')
Type of Contract: Full-Time | Remote
Salary Range: $3,800 – $4,800 USD/month
Language Requirements: Native Spanish, C1 English

We are seeking a skilled Senior Frontend Developer with strong experience in Next.js, React, and modern frontend architecture to join our growing team. You will play a key role in building high-conversion user interfaces, developing internal tools, and optimizing frontend performance. Your work will directly impact user experience, marketing effectiveness, and overall product scalability.

Key Responsibilities:

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Develop high-conversion, visually engaging interfaces using modern design and marketing best practices

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Build and maintain frontend applications using Next.js, React, and TypeScript

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Design and develop the frontend layer for internal tools and custom platforms

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Ensure cross-browser and cross-device compatibility through rigorous testing

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Participate in code reviews to uphold quality standards and best practices

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Collaborate with Product, Marketing, Design, QA, and Operations teams

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Write modular, reusable, and efficient code while continuously optimizing performance

Must-Have Qualifications:

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Strong experience with Next.js and the React ecosystem

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Advanced proficiency in TypeScript for scalable frontend development

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Solid understanding of NPM package management, including creation and optimization

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Experience with AI-assisted development tools and integrating AI into workflows

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Proven experience in frontend architecture with a modular design approach

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Strong knowledge of RESTful APIs and/or GraphQL, including async JavaScript (Fetch, Axios)

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Working knowledge of AWS and cloud-based application deployment best practices

Preferred Qualifications:

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Experience with frontend performance analysis and optimization

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Familiarity with A

📌 Senior Frontend Developer (España)
🏢 Nearshore Business Solutions
📍 España