Backend Engineer (Node.js, TypeScript, AWS)

Backend Engineer – Node.js, TypeScript, AWS

For our client, a fast-growing team building a next-generation AI-powered consumer product, we are looking for an experienced Backend Engineer to help scale the systems powering real-time experiences, cloud synchronization, and intelligent APIs.

This is not a founding role, but it is a highly impactful engineering position within a small, high-performing team focused on building world-class consumer technology products.

About the role

You will be responsible for designing, building, and scaling backend systems that support core product functionality — from real-time data pipelines to reliable cloud infrastructure and low-latency APIs.

You’ll work closely with mobile and AI teams to deliver fast, scalable, and highly reliable user experiences.

Responsibilities

Backend Development

• Design and build RESTful APIs using Node.js and TypeScript (Express.js or Nest.js)

• Architect and maintain PostgreSQL databases, including schema design and query optimization

• Implement background jobs and queue systems using Redis for ingestion, summarization, and notifications

• Build and maintain caching layers (Redis, CDN, HTTP cache) to ensure low-latency performance

• Implement authentication, authorization, and data privacy best practices

• Add real-time capabilities using WebSockets and Server-Sent Events

• Build observability into services through logging, metrics, and tracing

• Deploy and manage backend services on AWS (EC2, ECS, RDS, S3, Lambda)

Systems & Architecture

• Design clean, scalable, and maintainable service architectures

• Plan and execute safe database migrations and schema evolution strategies

• Ensure consistency and reliability across distributed systems

• Optimize system performance across I/O, CPU, and memory bottlenecks

• Build and maintain CI/CD pipelines and release automation workflows

• Contribute to infrastructure reliability, scalability, monitoring, and cost optimization

Quality & Security

• Write unit, integration, and contract tests with clear quality standards

• Enforce linting, type safety, and static analysis within CI pipelines

• Conduct security reviews and dependency audits while following least-privilege principles

• Clearly document services, APIs, and important architectural trade-offs

Requirements

Must-have

• 2+ years of backend development experience with Node.js and TypeScript

• Strong understanding of PostgreSQL, including schema design, indexing, and query optimization

• Experience working with Redis for caching and queue management

• Hands-on experience with AWS services such as EC2, RDS, Lambda, ECS, and S3

• Strong API design skills, including REST and real-time communication patterns

• Solid understanding of scalability, concurrency, and distributed systems

• Experience with Docker, Git workflows, and CI/CD automation

• Familiarity with security and backend performance best practices

Nice to have

• Experience with GraphQL or gRPC

• Exposure to event-driven architectures or microservices

• Familiarity with observability tools such as OpenTelemetry, CloudWatch, or Sentry

• Experience building high-traffic consumer applications

Example stack

• Backend: Node.js, TypeScript (Express.js / Nest.js), PostgreSQL, Redis

• Cloud: AWS (EC2, RDS, Lambda, ECS, S3, CloudWatch)

• Infrastructure: Docker, GitHub Actions, CI/CD