We are kicking off a new strategic initiative to build a state-of-the-art API Gateway that will serve as the central mobile-facing entry point for our e-commerce ecosystem. This gateway will orchestrate communication between Shopware, Contentful, Keycloak, and our broader integration layer, and will act as a long-term, high-availability core component of our architecture.
You will take ownership of the implementation phase, working from an existing concept and SRS draft, and driving this solution toward a robust, scalable, and production-ready platform. In this role, you will design and build performant services, integrate multiple systems, and ensure the platform meets enterprise-grade reliability, observability, and security standards.
Responsibilities:
- Implement and maintain a high-performance API Gateway that powers mobile applications and integrates with multiple backend systems.
- Collaborate with architects and stakeholders to refine the SRS, shape the technical direction, and ensure alignment with long-term architectural goals.
- Develop backend services using Node.js (Fastify), with a focus on low latency, scalability, and maintainability.
- Integrate external systems such as Shopware, Contentful, Keycloak, and other third-party platforms.
- Design caching and rate-limiting mechanisms using Redis/ElastiCache and leverage CloudFront for edge optimization.
- Ensure robust authentication and authorization flows based on OAuth2/OIDC standards.
- Deploy and operate services on AWS (ECS/Fargate, EKS, or Lambda), ensuring high availability and fault tolerance.
- Establish end-to-end observability for the platform using DataDog (metrics, logs, tracing).
- Conduct performance tuning, capacity planning, and resilience improvements.
- Write clean, well-tested, and maintainable code following best practices.
- Take ownership of the solution lifecycle—from implementation and deployment to monitoring and continuous improvement.
- 5+ years of backend engineering experience, with a strong focus on Node.js (Fastify preferred).
- Proven experience designing and operating API Gateways, BFFs (Backend-for-Frontend), or other high-traffic, low-latency service layers.
- Deep hands-on experience with AWS services, particularly ECS/Fargate, EKS, or Lambda, along with CloudFront for edge caching.
- Experience implementing caching and rate-limiting strategies using Redis/ElastiCache or similar tools.
- Strong understanding of OAuth2/OIDC flows and practical integration experience with Keycloak.
- Integration experience with Shopware REST APIs, Contentful, and other third-party platforms.
- Solid background in observability, especially with DataDog or similar monitoring platforms.
- Strong focus on code quality, testing strategies, performance, and security best practices.
- Ability to take ownership, work independently, and deliver solutions that scale.
Nice to have
- Prior experience building or owning a mobile-optimized API Gateway or BFF in a production environment.
- Experience with Celigo (integration platform) and Cloudinary (media management).
- Familiarity with distributed system design patterns and event-driven architectures.
- Experience with CI/CD pipelines, IaC (Terraform/CDK), and automated deployments on AWS.
- Knowledge of edge performance optimization strategies for mobile applications.
- Experience in e-commerce or high-availability consumer platforms.
