Principal JavaScript Engineer (Madrid)

Overview

Principal JavaScript Engineer at BairesDev. We are seeking a Principal JavaScript Engineer with deep expertise in JavaScript development, Node.js, frontend/backend development, and enterprise applications. The technology stack includes popular JavaScript technologies and frameworks for full‑stack development and enterprise applications. The idóneo candidate will lead the design and optimization of high‑performance JavaScript systems, drive architectural decisions, and mentor engineering teams while delivering cutting‑edge solutions for complex frontend and backend challenges.

Responsibilities

• Design and optimize JavaScript-based applications for large-scale enterprise deployments.
• Architect advanced Node.js solutions for scalable backend systems and APIs.
• Lead full‑stack development initiatives for complex frontend and backend systems.
• Drive enterprise application development using modern JavaScript frameworks.
• Implement performance optimization techniques for high‑throughput JavaScript applications.
• Mentor engineering teams and provide technical leadership across projects.

Qualifications

• 10+ years of experience in software development with strong JavaScript expertise.
• Proven experience in Node.js development and server-side JavaScript applications.
• Strong expertise in both frontend and backend development technologies.
• Deep understanding of enterprise application architecture and design patterns.
• Proficiency in modern JavaScript frameworks and

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