Ant-Tech

Senior Backend Engineer, JavaScript/Node

Ant-Tech

full-time

Posted on:

Origin:  • 🇨🇴 Colombia

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Salary

💰 $8,000 per month

Job Level

Senior

Tech Stack

AWSDockerEC2GoJavaScriptKafkaMicroservicesMongoDBNode.jsPostgresRabbitMQTerraformTypeScriptWeb3

About the role

  • Architect and develop high-performance backend systems using NestJS, ensuring scalability and maintainability.
  • Design and optimize PostgreSQL database structures and query performance.
  • Implement complex business logic and integrations within financial workflows.
  • Develop and maintain high-performance RESTful APIs.
  • Create data modeling strategies for complex financial service configurations.
  • Lead backend system design and make key technical decisions.
  • Apply AWS services to build scalable and reliable infrastructure.
  • Mentor junior engineers and contribute to team culture.
  • Implement comprehensive testing strategies: unit and integration tests.
  • Establish and maintain backend observability and monitoring systems.
  • Collaborate closely with frontend, product, and design teams to ensure seamless system integration.

Requirements

  • At least 7 years of experience in JavaScript and Node.js development.
  • Deep understanding of NestJS and advanced JavaScript/TypeScript patterns.
  • Minimum of 6 years of experience with PostgreSQL and relational database design.
  • Proficiency with NodeJS, TypeScript, JavaScript, AWS, Microservices, PostgreSQL, MongoDB, NestJS.
  • Experience with AWS services: EC2, RDS, Lambda, S3, CloudWatch, Infrastructure as Code (CloudFormation or Terraform).
  • Proven experience designing scalable, high-performance backend systems.
  • Strong skills in RESTful API development, database optimization, and backend testing (unit and integration).
  • Background in microservices architecture with strong debugging and troubleshooting abilities.
  • Proficiency in Spanish and English.
  • Nice to have: Docker, CI/CD, message queue systems (Kafka, RabbitMQ), experience in financial services, backend observability tools.
  • Visa sponsorship not provided; candidate must have work authorization for the country of employment.