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

We are seeking a Senior Backend Engineer to take ownership of mission-critical backend systems that power real-time high-throughput 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.

Responsibilities

• Backend Engineering: Design implement and maintain scalable backend services using (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 () 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.

• Proven experience as a Senior Backend Engineer (or backend-focused fullstack engineer) delivering production systems at scale.

• Strong expertise in 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 ).

• 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.

• Experience with Infrastructure as Code (Terraform CloudFormation or CDK).

• Experience with 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.