Senior Fullstack Developer

Unravel S.A; Buenos Aires; Híbrido; ARS 125.062.000 - 187.593.000; Jornada completa

Descripción de la vacante

Unravel S.A. is seeking an experienced Senior Fullstack Developer to join a US-founded foundation project in pre-school education.

You will play a key role in building a brand-new platform from the ground up, working closely with an international team. Responsibilities include developing backend services with TypeScript in a serverless AWS environment, implementing GraphQL and REST APIs, and orchestrating workflows with AWS Step Functions.

Formación

• Backend experience with Node.js and AWS serverless stack (Lambda, AppSync/GraphQL, API Gateway, DynamoDB, S3, CDK).
• Good understanding of REST and GraphQL APIs.
• English at C1 level.

Responsabilidades

• Develop backend services using TypeScript in a serverless architecture on AWS.
• Implement and maintain APIs using AWS AppSync (GraphQL) and API Gateway (REST).
• Design and manage workflow orchestration using AWS Step Functions.
• Work with AWS services such as Lambda, DynamoDB, S3, and Infrastructure as Code using AWS CDK.
• Collaborate with a US-based product and engineering team to ensure smooth communication and delivery.
• Participate in architectural decisions, code reviews, and technical discussions.
• Ensure high-quality code, performance, security, and scalability of the platform.

Conocimientos

Node.js

REST APIs

GraphQL APIs

English (C1)

Herramientas

TypeScript

AWS

AppSync

API Gateway

Lambda

DynamoDB

S3

CDK

Descripción del empleo

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:

• 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:

• 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:

• 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
• Salary USD hourly
• Experience Senior

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