Senior Salesforce Frontend Engineer

apeirum is recruiting on behalf of maxon for a Senior Salesforce Frontend Engineer in Barcelona. This is a permanent position employed directly by maxon ; apeirum runs the selection process.

maxon is a global provider of world-class precision drive systems. Its drives are used wherever extreme precision and the highest quality standards matter – on Earth, and on Mars. maxon offers creative minds and passionate doers a global yet trusted environment, where people who question what is possible and challenge themselves can grow.

As Senior Salesforce Frontend Engineer you design and build modern, scalable and user-friendly frontends in maxon's Salesforce ecosystem. You shape the user experience of maxon's global Sales and Marketing platforms, with a strong focus on performance, usability and business value, and you work closely with backend developers, architects and business stakeholders in Barcelona and Switzerland. Hybrid in Barcelona (3 days office, 2 remote).

Tasks

• Develop and maintain frontend components and interfaces in Salesforce, mainly with Lightning Web Components (and Aura where needed).

• Build and customise user interfaces across Experience Cloud, Commerce Cloud storefronts, Lightning App Builder and screen flows.

• Connect frontend components to Apex services and external APIs, with a clean separation between UI and business logic.

• Turn business requirements into intuitive, high-quality UI/UX within the platform's capabilities.

• Make applications fast, responsive and cross-browser compatible.

• Contribute to design systems and reusable components for consistency across applications.

• Take part in code reviews, testing and deployments, and keep improving existing frontend solutions.

• Use AI coding assistants responsibly to speed up development, reviewing every output for correctness, security and maintainability.

Requirements – must have

• 5+ years of frontend development, with substantial hands‑on work in Salesforce.

• Senior‑level experience with Lightning Web Components (or Aura / similar component frameworks).

• Strong Salesforce Commerce Cloud experience.

• Strong frontend fundamentals: JavaScript (ES6+), HTML5, CSS3 and a component‑based mindset.

• Experience integrating frontends with Apex and external APIs.

• A structured, reliable and quality‑driven way of working, with ownership of your deliverables.

• Enjoy working in cross‑functional, international teams.

• Fluent English.

• Based in Spain (Barcelona).

Nice to have

• Experience Cloud, screen flows and Lightning App Builder.

• Design‑system work and reusable component libraries.

• Jest or other JavaScript testing frameworks; CI/CD for Salesforce.

• Salesforce certifications (e.g. JavaScript Developer I, Platform Developer I, B2C/B2B Commerce Developer).

• Spanish or German.

What maxon offers

• A permanent employment contract directly with maxon, competitive compensation, and flexible working hours.

• A key role in global Salesforce solutions for Sales and Marketing.

• A dynamic and friendly workplace in maxon's Barcelona tech hub, combining startup energy with the stability of a Swiss industrial leader.

• International collaboration with teams in Switzerland and worldwide.

• Continuous learning and growth through the maxon academy.

• Additional benefits such as Club Natació de Barcelona membership and the Cobee program.