Backend & DevOps Engineer

Responsibilities: - Develop and enhance the Medusa-based commerce backend including custom modules, data models, module links, API routes, and workflows. - Extend Medusa Admin with widgets and custom routes. - Implement B2B features such as company accounts, customer groups, customer-specific price lists, quotes, approval flows, and bulk ordering. - Integrate ERP, CRM, PIM, and back-office systems using workflows, event subscribers, and scheduled jobs. - Design, build, and deploy AI agents and tools interacting through Medusa APIs and workflows. - Manage cloud infrastructure for Medusa including PostgreSQL, Redis, containerized server and worker instances, and CI/CD pipelines. - Identify manual bottlenecks and automate processes. - Coordinate Store and Admin APIs with frontend, back-office, and business teams. - Write clean, tested, and secure code. Requirements: - 5+ years of backend development experience with Node.js and TypeScript. - 2-3+ years of hands-on production experience with Medusa (preferably v2), including custom modules, workflows SDK, compensation logic, subscribers, and Admin customizations. - Practical experience with B2B e-commerce logic such as price lists, customer groups, company accounts, quotes, and approval flows. - Experience integrating third-party systems (ERP, payment, fulfillment, CRM, or PIM) using event-driven and asynchronous patterns. - Production experience with PostgreSQL and Redis. - Proficiency with Docker, CI/CD pipelines, at least one major cloud platform (AWS, GCP, or Azure), and infrastructure as code. - Excellent communication skills and strong command of English. Nice-to-have: - Experience deploying and scaling Medusa with separate server and worker modes. - Knowledge of Kubernetes. - Experience with AI integration, LLM workflows, and autonomous AI agents for business processes. - Familiarity with Next.js storefronts or multi-platform frontends. - Experience in GraphQL API design. - Medusa plugin development experience. Additional Information: - Working hours aligned with CET. - Candidates located in EU, Armenia, Azerbaijan, Georgia. - Customer location: Germany. - Language requirement: English B2. - Estimated start date: 04.12.2026. - Duration: 6 months. Contact for application: @veroneko (Telegram). Please include age and location in your resume. Applications without this information will not be considered.