Salesforce B2B Commerce Engineer (Backend / Full Stack)

apeirum is recruiting on behalf of maxon for a Salesforce B2B Commerce 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 Salesforce B2B Commerce Engineer you build, enhance and run maxon's Salesforce B2B Commerce solution – the digital channel through which industrial customers find, configure and order maxon products. The role owns commerce-domain implementation: Apex back-end logic, B2B Commerce and Experience Cloud configuration, and targeted full-stack extensions. You join a small Salesforce team in Barcelona and Switzerland alongside an Architect, a Frontend Engineer, a Sales Cloud Engineer and an Integration Engineer, work closely with an external development partner that drives AI-assisted engineering, and own your features from refinement to production. Hybrid in Barcelona (3 days office, 2 remote), with occasional travel to Switzerland for onboarding and workshops.

Tasks

• Build and maintain B2B Commerce features: stores, buyer accounts and groups, entitlements, catalogs, products, price books, cart, checkout and order handover.

• Develop Apex classes, asynchronous processing, platform events and reusable commerce services where standard B2B Commerce extension points are not enough.

• Configure B2B Commerce and Experience Cloud (LWR storefronts) – standard first, custom code only where it pays off.

• Build targeted Lightning Web Components and storefront extensions where standard components don't cover the business need.

• Provide the Salesforce side of catalog, pricing, inventory, customer and order integrations (data model, APIs, events) together with a dedicated Integration Engineer.

• Ship through Git, Salesforce DX and CI/CD, with automated tests for Apex, Flow and LWC and peer code reviews.

• Troubleshoot production issues, find root causes and fix them for good.

• Use AI coding assistants every day across implementation, refactoring, testing and documentation – and stay fully accountable for everything you deliver.

Requirements – must have

• Strong hands-on Apex development: SOQL, asynchronous processing, test classes and governor limits.

• Practical experience with Salesforce B2B Commerce on Lightning or Experience Cloud (LWR).

• Git, Salesforce DX and CI/CD.

• Routine use of AI coding assistants in your daily engineering work.

• A standard-first mindset: you use Salesforce standard capabilities before writing custom code.

• Fluent English.

• Based in Spain (Barcelona).

Nice to have

• Salesforce certifications (B2B Commerce Developer, Platform Developer I/II, Experience Cloud Consultant).

• Lightning Web Components, JavaScript, HTML and CSS.

• Salesforce security and data model: sharing, permissions, CRUD/FLS.

• Complex B2B pricing, availability, promotions or multi-currency, multi-language commerce.

• Commerce/Connect APIs, Apex REST, Platform Events.

• ERP, PIM or pricing integrations in a manufacturing environment.

• Azure DevOps pipelines, Jest or TypeScript.

• Experience in multi-site teams or with external implementation partners.

• Spanish/Catalan or German.

What maxon offers

• A permanent employment contract directly with maxon, competitive compensation, and flexible working hours supporting work–life balance.

• End-to-end ownership of commerce features in a small team where your work goes straight to production.

• 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 an external development partner.

• Continuous learning and growth through the maxon academy and professional development programs.

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

Interested? Apply with your CV. apeirum reviews every application personally and will get back to you; shortlisted candidates then interview with the maxon team, and the offer and contract come from maxon.