Senior Backend Engineer (AWS API Gateway) for an eCommerce in Cosmetics Market

We’re looking for an experienced Backend Engineer to design and build a robust API Gateway layer between mobile apps and our backend using Amazon API Gateway and AWS cloud services.

This role is ideal for an engineer with strong architectural thinking, a passion for building scalable and secure cloud systems, and experience collaborating closely with mobile and backend teams.

Responsibilities

• Architect and implement an API Gateway that supports routing, versioning, authentication, and caching.
• Integrate with Keycloak for secure authentication and authorization.
• Implement caching and session management optimized for mobile clients.
• Design and maintain API versioning 
• Set up CI/CD pipelines and Infrastructure-as-Code (Terraform/AWS CDK).
• Ensure security, observability, and scalability using AWS tools (CloudWatch, X-Ray, tracing, metrics).
• Collaborate closely with mobile and backend teams to ensure consistent API contracts and smooth integration.
   

💡 Requirements

• 4+ years of experience in backend development.
• Hands-on experience with Amazon API Gateway, AWS Lambda, IAM, CloudFront, and caching layers.
• Proficiency in at least one backend stack: Node.js/TypeScript, Java/Kotlin (Spring), or Python.
• Strong understanding of API design, versioning, security, rate limiting, and contract testing.
• Solid experience with CI/CD, Infrastructure as Code, and cloud monitoring tools.
• Upper-Intermediate English (B2) level or higher.
   

🚀 Nice to Have

• Experience integrating with Shopware (REST/GraphQL, caching, plugins).
• Knowledge of Keycloak (OIDC, PKCE, roles, token management).
• Familiarity with GraphQL Gateway, Lambda Edge, or advanced caching.
• Understanding of mobile API optimization and feature flag systems.
   

🎯 We Offer

• Key role in building a stable, extendable cloud infrastructure.
• Continuous challenges, learning opportunities, and knowledge exchange.
• Open, constructive culture in a fast-growing, international team.
•  Flexible schedule, remote-first work environment, and long-term cooperation.