Full Stack Software Engineer

About the role

As a Full Stack Software Engineer, you will build and maintain systems that impact physical operations, ranging from warehouse automation to customer-facing smart fridges. You will own the development of web applications, back-office tools, and Android-based point-of-sale systems while collaborating directly with operations staff to solve real-world problems. This role requires a proactive engineer capable of managing production deployments, debugging live issues, and integrating complex hardware and software systems.

Responsibilities

• Take ownership of warehouse and supplier web apps used for inbound processing, picking, labeling, and inventory.
• Develop and maintain the internal back-office tool, including the backend and GraphQL API.
• Manage the service connecting automated picking lanes to the system to ensure uninterrupted warehouse operations.
• Maintain and update the Point of Sale Android app and manage the release process for the fleet.
• Integrate and support payment systems, ERP, and other partner integrations.
• Participate in the on-call rotation to debug live issues alongside the operations team.
• Visit the warehouse on-site to test changes and gather feedback from end-users.
• Own production deployments, managing logs, alerts, and rollouts.

Required skills

• Full-stack development
• Backend development
• Frontend framework
• GraphQL
• Android
• TypeScript
• C#
• Kotlin
• Java
• Go

Nice to have

• Hardware integration
• IoT
• Edge devices
• Payment systems
• Logistics
• Retail operations
• Odoo
• German
• French

Qualifications

• Proven production experience in at least one typed backend language and one modern frontend framework
• Valid work permit or Swiss passport

Benefits

• Delicious food
• Barista coffee and tea
• 5 weeks holiday
• Option to buy extra vacation week
• Two weeks work from anywhere
• Above-mandatory pension fund
• Paid parental leave
• Childcare financial contribution
• Half-fare travelcard
• Weekly sports sessions

About the Company

FELFEL is a family business founded in 2013 that provides smart fridges and barista coffee to workplaces to help employers offer fresh food and drinks. They currently serve around 1000 locations in Switzerland with 150 employees across offices in Lausanne, Zurich, and New York.