Varicent

Staff JavaScript Engineer – React, Node, GraphQL

Varicent

full-time

Posted on:

Origin:  • 🇦🇷 Argentina

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Job Level

Lead

Tech Stack

AWSCloudDockerDynamoDBGraphQLJavaScriptKafkaMicroservicesNode.jsNoSQLReactReduxServiceNowSQLTypeScript

About the role

  • Join Varicent’s Sales Planning team to lead the development of a fast-scaling SaaS platform that empowers global sales organizations.
  • Work on a high-impact single-page application using React, GraphQL, and a serverless AWS backend, driving features that directly support revenue growth and go-to-market execution.
  • Lead the design and development of new features using the MERN stack.
  • Build cloud-native apps with AWS Lambda, Aurora, DynamoDB, ECS, and GraphQL.
  • Improve system scalability, performance, and architecture.
  • Write clean, efficient, and maintainable code with CI/CD and test automation.
  • Collaborate closely with product and design to deliver intuitive user experiences.
  • Guide junior developers through code reviews and technical mentoring.

Requirements

  • 8+ years of experience in modern web development with React, Node.js, TypeScript, and JavaScript.
  • Strong background with microservices, cloud architecture, and serverless development (preferably AWS).
  • Solid knowledge of SQL, NoSQL, and API design (REST/GraphQL).
  • Experience in automated testing, CI/CD, and agile delivery environments.
  • Proficiency in English communication (verbal and written).
  • Nice to Have: Experience with Redux, messaging systems (Kafka, Kinesis), or Docker.
  • Nice to Have: AWS certification or equivalent hands-on expertise.
  • Nice to Have: Background in product-focused teams or SaaS platforms.