Backend engineer

Backend Engineer

We’re looking for a Backend Engineer with 5+ years of experience to build and maintain high-volume data collection systems and reliable experimentation infrastructure for a digital product.

Responsibilities

• Build and maintain streaming pipelines for app, web, and business data.

• Develop and operate backend APIs and event collection platforms.

• Ensure data quality, reliability, and consistency across high-volume data flows.

• Monitor system performance, troubleshoot incidents, and participate in on-call support.

• Automate infrastructure and improve CI/CD processes.

Tech Stack

• Cloud & Infrastructure: AWS, Terraform, CI/CD

• Data: Streaming pipelines, Databricks, Delta Lake

• Monitoring: Prometheus, Grafana

• Analytics & Experimentation: Amplitude, AppsFlyer, Airbridge, A/B testing, feature flags

Requirements

• 5+ years of backend development experience.

• Experience with high-traffic APIs and high-volume data pipelines.

• Hands-on experience operating data collection systems in a cloud environment.

• Korean language proficiency