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Senior Backend Engineer (AWS, Node.js, TypeScript, PostgreSQL, Real-Time)

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Job Description:

We are seeking a Senior Backend Engineer to take ownership of mission-critical backend systems that power real-time, high-throughput applications. In this role, you will design, build, and operate scalable services in a cloud-native AWS environment, with a strong focus on performance, reliability, and clean architecture.

Job Responsibility:

  • Backend Engineering: Design, implement, and maintain scalable backend services using Node.js (Express) and TypeScript
  • System Design: Own technical decisions, service boundaries, API design, and reliability patterns for backend components
  • Cloud & Infrastructure (AWS): Design, deploy, and operate backend services on AWS, leveraging managed services for scalability, reliability, and security
  • Database Ownership: Design schemas, write and optimize SQL, and improve PostgreSQL performance (indexes, query plans, migrations)
  • Real-Time Functionality: Build and operate real-time features using WebSockets (socket.io), ensuring stability under load
  • Performance and Scalability: Improve throughput and latency, and proactively address bottlenecks across services, infrastructure, and the database
  • Quality and Testing: Write and maintain unit and integration tests, and raise overall engineering quality
  • Debugging and Incident Support: Troubleshoot complex production issues across the stack and AWS infrastructure, and implement long-term fixes
  • Collaboration: Work closely with product owners and engineering teams to deliver high-impact features with predictable execution
  • Continuous Improvement: Contribute to better tooling, standards, and engineering practices across the backend team

Requirements:

  • Proven experience as a Senior Backend Engineer (or backend-focused fullstack engineer) delivering production systems at scale
  • Strong expertise in Node.js and Express with TypeScript
  • Strong proficiency in PostgreSQL, including schema design, migrations, data modeling, and query optimization
  • Hands-on experience with WebSockets and real-time systems (preferably socket.io)
  • Solid experience with AWS, including deploying and operating backend services using services such as EC2, ECS/EKS, RDS, S3, CloudWatch, and IAM
  • Understanding of cloud-native concepts such as scalability, high availability, observability, and security
  • Strong problem-solving skills and ability to work independently on ambiguous, complex tasks
  • Solid communication and collaboration skills in a fast-paced, cross-functional environment
  • Experience with CI/CD pipelines and DevOps practices

Nice to have:

  • Experience with Infrastructure as Code (Terraform, CloudFormation, or CDK)
  • Experience with React.js and state management (Mobx is a plus) for occasional frontend contributions
  • Experience with crypto transactions
  • Familiarity with testing frameworks like Jest or Mocha
  • Experience working in Agile/Scrum teams

Additional Information:

Job Posted:
April 23, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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