JavaScript Developer

About This Role

As a key member of the Core team in a strategic environment within digital banking, you will ensure the robustness, scalability, and security of the frontend architecture. Your main mission will be to tackle high-impact technical challenges while ensuring compliance with cybersecurity standards and best practices on the platforms.

Responsibilities

• Identify, analyze, and resolve code vulnerabilities in the frontend developments of the project.
• Design and implement robust, efficient, and reusable web components using LitElement.
• Apply design patterns to ensure maintainability and modularity of the codebase.
• Manage and maintain code repositories using advanced Git in collaborative environments.
• Work in a team under agile methodologies (Scrum, Kanban, XP), actively participating in dynamics and continuous value delivery.
• Propose proactive improvements in code quality, refactoring, and software architecture.

Requirements

• Proven experience in FrontEnd development.
• Strong knowledge of JavaScript (ES6+).
• Practical experience working with web components based on LitElement.
• Strong problem-solving skills, analytical focus, proactivity, and excellent predisposition for teamwork.

Benefits

• Access to continuous training: individual budget for training, obtaining certifications, unlimited access to Udemy, language classes, internal training dynamics.
• Flexible hours, possibility to work from our Hubs, remote work (remote work will be prioritized, except for specific internal projects or clients that require hybrid work).
• 22 vacation days + birthday day + 2 days for attending technical events + non-working days on December 24 and 31.
• Wellbeing pack: support for improving wellbeing.
• Flexible compensation.
• Team building dynamics and events.
• Welcome pack.
• Option to choose equipment (Windows / Mac).
• Other initiatives that allow you to earn additional bonuses: recommending professionals, speaking at events, writing technical articles.

Important Details

• Application deadline: not specified.

Application Process

• Submit your application through the platform.

About the Company

SNGULAR is recognized as one of the top 10 companies to develop a professional career in Spain, according to the prestigious LinkedIn Top Companies 2026 list.