Full Stack Software Engineer

ABOUT US

FELFEL is all about good food and coffee in the workplace: we help Swiss employers become masters of hospitality. With our smart fridge ‘FELFEL’ and delicious barista coffee ‘Gavetti’, we enable companies to provide their employees with first-class, ultra-fresh food and drinks throughout the day. Whether hearty and traditional, modern and vegan or high in protein - our weekly changing menu ensures that all employees always have something to be excited about ;). FELFEL is a family business that was founded in 2013. Today, we take care of around 1000 locations in Switzerland, and have 150 employees across our offices in Lausanne, Zurich and New York.

YOUR RESPONSIBILITIES

• Take ownership of warehouse and supplier web apps used daily for inbound processing, picking, labeling, and inventory.
• Develop and maintain our internal back-office tool, including the backend and GraphQL API that runs menus, deliveries, inventory, and customer sites.
• Manage the service connecting automated picking lanes to the rest of the system to ensure uninterrupted warehouse operations.
• Maintain and update the Point of Sale Android app running on hundreds of fridges, managing the release process for the entire fleet.
• Integrate and support payment systems (Card, TWINT), our ERP, and other partner integrations.
• Participate in the on-call rotation to debug live issues directly alongside the operations team.
• Visit the warehouse on-site to test changes and gather feedback from the people actually using the software.
• Translate vague problems from non-technical colleagues into shipped solutions without needing them broken down first.
• Own production deployments, managing logs, alerts, and careful rollouts with clear rollback plans.
• Break down larger features, review other engineers' pull requests, and proactively maintain system health through upgrades, testing, and cleanup.

YOUR PROFILE

• Proven production experience in at least one typed backend language (such as C#, Java, Kotlin, Go, or TypeScript) and one modern frontend framework.
• Track record of successfully owning software in production, including on-call duties, debugging from logs, and resolving live issues while users wait.
• Familiarity with or willingness to dive into C#, TypeScript, Android, and Kotlin.
• Prior exposure to hardware, IoT, edge devices, payments, logistics, retail operations, or Odoo environments is highly advantageous.
• Demonstrated ability to dive into unfamiliar tech stacks, learn quickly, and ship reliable code.
• Strong passion for collaborating directly with end-users, including warehouse and operations staff, rather than exclusively with other engineers.
• High degree of curiosity and a proactive mindset to take full ownership of problems from end to end.
• Fluent English communication skills (written and spoken); knowledge of German or French is a plus.
• Non-smoker - we don't want you to smell like cigarettes, neither at work nor at customer meetings. After all, FELFEL is about good food.
• Valid work permit or Swiss passport.

Fähigkeiten

C#JavaTypeScriptKotlinGraphQL

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