Senior JavaScript Engineer

hlpy, born in 2020, is roadside assistance company founded by visionaries who saw a gap in the market and redefined the industry with a cutting-edge digital solution.

What started as a bold idea in Italy quickly expanded to France and Spain, and Germany

As we continue to scale globally, our ambition and market demand propel us toward becoming a major force in the sector.

Are you ready to be part of this journey? 🚀

Role Overview

We are looking for a Senior JavaScript Engineer to join our product engineering team and take a leading role in building scalable, high-quality frontend applications.

You will work on core product features, contribute to frontend architecture and design system evolution, and collaborate closely with backend engineers and product teams.

This is a hands-on senior role, combining strong technical execution with architectural thinking and mentorship.

Key Responsibilities

- Design, develop, and maintain modern frontend applications using JavaScript and TypeScript.
- Lead and contribute to the adoption and evolution of frontend frameworks (e.g. Vue, React, Angular).
- Design, implement, and maintain a Design System (components, tokens, guidelines) used across multiple products.
- Build scalable, reusable, and accessible UI components.
- Work closely with backend teams to design, consume, and evolve APIs (REST / GraphQL).
- Translate product and UX requirements into robust technical solutions.
- Ensure high code quality through reviews, testing, and best practices.
- Optimize frontend performance, accessibility, and maintainability.
- Mentor junior engineers and actively contribute to frontend standards and guidelines.

Technical Requirements

Must Have

- Strong experience with JavaScript (ES6+) and TypeScript.
- Deep hands-on experience with modern frontend frameworks
- (Vue but React or Angular are also valid).
- Proven experience in Design System implementation, including:
- Component libraries
- Theming and design tokens
- Documentation and usage guidelines
- Solid experience working with APIs:
- REST and/or GraphQL
- API contracts and data modeling
- Error handling and performance considerations
- Strong understanding of frontend architecture and state management patterns.
- Experience with modern build tools and tooling (Vite, Webpack, ESLint, etc.).
- Familiarity with testing frameworks (Jest, Testing Library, Cypress, etc.).
- Excellent knowledge of Git and collaborative development workflows.

Nice to Have

- Experience with monorepos and shared frontend libraries.
- Exposure to micro-frontend architectures.
- Experience with accessibility standards (WCAG).
- Familiarity with CI/CD pipelines and frontend deployment workflows.
- Basic understanding of backend technologies and cloud environments.

Soft Skills

- Strong problem-solving and analytical mindset.
- Ability to work autonomously while collaborating effectively with cross-functional teams.
- High attention to code quality, usability, and long-term maintainability.
- Clear communication skills, both technical and non-technical.
- Mentorship attitude and willingness to raise the overall frontend bar.

Education & Experience

- Degree in Computer Science, Engineering, or equivalent practical experience.
- 5+ years of professional experience in frontend or JavaScript-focused roles.
- Demonstrated experience working on production-grade, user-facing products.

What We Offer

- A product-driven engineering environment
- Real ownership of frontend architecture and UI foundations.
- Opportunity to influence technical direction and design standards.
- Continuous learning and professional growth.
- Flexible remote work and a strong engineering culture.
- Company benefits.

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