Fully remote (European Union) Contract, ongoing (initial term to end of September ****) ASAP Our client, a integral industrial technology company, runs a B2B e-commerce platform and smart product catalogue built on Medusa, the open-source headless commerce engine. The backend is currently delivered by an external supplier, and the client is now building its own in-house backend capability to take ownership of the platform. You will be a key part of that shift. You will stabilise and extend the Medusa backend, connect it reliably to a complex landscape of SAP, Salesforce and Snowflake systems, run its AWS infrastructure, and build AI agents that automate business processes. You will work alongside an in-house Flutter frontend and QA team and the existing backend supplier, and directly with business stakeholders. Make the Medusa integration layer robust across 40+ SAP systems, Salesforce and Snowflake, so the data reaching the web and mobile frontends is reliable. Own and evolve the Medusa backend: Build custom modules, data models, module links, API routes and workflows, and extend the Medusa Admin, which serves as the business's back office for contracts, customer product access and product content. Work with business teams to replace Excel
- and Word-based processes and disconnected SAP/Salesforce data with unified workflows in the product catalogue.



Run DevOps and infrastructure: Deploy, operate and scale Medusa on AWS (EC2), including PostgreSQL, Redis, server and worker instances, and the CI/CD pipelines behind them. Build knowledge of the existing codebase and progressively bring backend ownership in-house. Align Medusa's Store and Admin APIs with the Flutter web/mobile frontend and with operational needs. Keep quality and security high: Write clean, modular, well-tested code and apply strict data security and protection standards. Senior backend

experience:
Several years building production backend services in Node.js/TypeScript, with strong PostgreSQL skills. Proven experience integrating e-commerce platforms with ERP and CRM systems, ideally SAP and Salesforce, using REST/GraphQL APIs and event-driven, asynchronous processing. A solid grasp of B2B commerce logic such as account hierarchies, contract pricing and approvals. AWS and DevOps: Practical experience deploying and running services on AWS (EC2), Docker, infrastructure as code and CI/CD. Experience running Medusa in separate server and worker modes is a strong plus. Snowflake or other data-warehouse integration Experience with a Flutter frontend team, or mobile-plus-web commerce Experience in energy, industrial or other large-enterprise environments #

📌 Backend Developer Python (Vitoria-Gasteiz)
🏢 Remobi
📍 Vitoria-Gasteiz