
Expert Serverless Backend Developer
3 days ago
This senior-level position involves designing and implementing cloud-native serverless backend infrastructure to power cross-platform applications. The ideal candidate will have extensive knowledge of AWS CDK, AppSync, Lambda, Step Functions, and modern deployment practices.
Key Responsibilities:- Develop and deploy multi-stack architecture using AWS CDK for efficient scalability.
- Design and build backend components using Lambda, AppSync, API Gateway, Step Functions, ECS (Fargate).
- Integrate OAuth flows and manage Cognito User Pools securely.
- Collaborate with React/React Native teams to design and evolve GraphQL APIs.
- Automate builds, bundling, and deployment pipelines for backend and containerized tasks efficiently.
- Write unit/integration tests against Dockerized local environments to ensure robustness.
- Utilize Zod for runtime validation and schema inference in the development process.
- Manage secure configuration management through SSM Parameter Store and Lambda layers.
- Support heavy processing jobs using ECS tasks.
- Build integrations with Meta (Facebook) APIs for business page and marketing features.
- Work with POS systems, handling secure API calls and event flows.
The successful candidate will have 3+ years of hands-on experience with AWS, especially CDK, Lambda, AppSync, Step Functions, and API Gateway. They should also be familiar with multi-stack infrastructure patterns, CI/CD for serverless deployments, and Zod or similar validation libraries.
Requirements:
- 3+ years of experience with AWS, especially CDK, Lambda, AppSync, Step Functions, and API Gateway.
- Experience with multi-stack infrastructure patterns and CI/CD for serverless deployments.
- Knowledge of OAuth2 workflows and callback management.
- Familiarity with MongoDB Atlas, IP whitelisting, and secure VPC integration.
- Exposure to containerization with Docker and running tasks in ECS Fargate.
- Practical understanding of React Native + Expo EAS build workflows (iOS/Android deployments).
- Strong Git/GitHub workflow knowledge and collaboration tools.
- Familiarity with integrating and securing third-party APIs like POS systems.
- Experience with Meta (Facebook) API integrations.
Nice to Have:
- Experience with Turborepo and monorepo package structure.
- Knowledge of Lambda Layers, SSM Lambda Extensions, or CDK advanced patterns.
- Hands-on with performance optimization and cold start minimization in Lambda.
- AWS certifications are a plus.
This role offers opportunities for professional growth and collaboration with experienced engineers in the field.
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