Senior Developer, Back End (New Marketplace Development)

Senior Developer, Back End (New Marketplace Development)

We are looking for a Senior Backend Developer with strong expertise in Node.js and hands-on experience in MedusaJS , or a strong willingness and ability to ramp up quickly on this headless commerce framework. In this role, you will architect and implement scalable backend systems for modern eCommerce experiences.

As part of our product engineering team, you will be responsible for designing, developing, and maintaining high-performance APIs, integrating third-party services, and optimizing system performance while ensuring a seamless and secure shopping experience.

Key Responsibilities

• Design, develop, and maintain backend services using MedusaJS and Node.js
• Customize and extend core Medusa functionality (e.g., product catalog, order management, carts, etc.)
• Integrate external services (e.g., payment gateways, shipping providers, CMSs)
• Implement scalable APIs and microservices to support frontend teams
• Collaborate closely with frontend developers, designers, and product managers
• Ensure code quality, security, and performance through reviews, testing, and CI / CD practices
• Maintain and optimize database models (PostgreSQL preferred)
• Monitor and troubleshoot production systems
• Contribute to architectural decisions and roadmap planning

Required Skills & Experience

Nice to Have

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