About the Role:
We are seeking an experiencedSenior Fullstack Developerto join a project for one of the largest foundations in the field of pre-school education in the US. You will play a key role in building abrand-new platformfrom the ground up, working closely with an international team.
Responsibilities:
- Build and customize Shopify-based frontend solutions usingJavaScript.
- Develop backend services usingTypeScriptin a serverless architecture onAWS.
- Implement and maintain APIs usingAWS AppSync (GraphQL)andAPI Gateway (REST).
- Design and manage workflow orchestration usingAWS Step Functions.
- Work with AWS services such asLambda, DynamoDB, S3, and Infrastructure as Code usingAWS CDK.
- Collaborate closely with aUS-based product and engineering team, ensuring smooth communication and delivery.
- Participate in architectural decisions, code reviews, and technical discussions.




- Ensure high-quality code, performance, security, and scalability of the platform.

Requirements:
- Strong hands-on experience withvanilla JavaScript and Typescript.
- Backend experience withNode.jsandAWS serverlessstack (Lambda, AppSync/GraphQL, API Gateway, DynamoDB, S3, CDK).
- Good understanding ofREST and GraphQL APIs.
- English at C1 level

Nice to have:
- Experience in building and customizing Shopify-based frontend solutions using JavaScript.
- Auth0 experience

Additional Information:
- You will collaborate closely with a US-based team. Availability for overlap with US Pacific Time working hours (10:00-14:00 PST).
- Ability to provide a no-criminal-record certificate

📌 Senior Fullstack Developer (Buenos Aires)
🏢 Spyro Soft
📍 Buenos Aires