Backend Jobs in South Korea
There are 123 open Backend jobs in South Korea on freehire right now. 14 of them were posted recently. The skills employers ask for most often are java, aws and api.
Most requested skills
- java 63%
- aws 61%
- api 52%
- ai 51%
- spring 48%
- kubernetes 46%
- kotlin 41%
- kafka 37%
How the work is done
- Onsite 13 · 11%
- Hybrid 5 · 4%
Visa sponsorship offered in 76% of the 41 postings that state a position on it.
Seniority
- Senior 28
- Staff 26
- Lead 6
- Intern 1
- Junior 1
- Principal 1
Who is hiring
- 1000+ employees 48
- 501-1000 employees 22
- 51-200 employees 16
- 11-50 employees 1
Back-end Engineer (CRM)
Builds and scales the CRM backend that powers automated, AI-driven marketing campaigns for 1.1M+ ecommerce sites, handling real-time customer behavior data and high-volume messaging pipelines.
Backend Engineer (통합 빌링·정산 & FMS)
Builds and scales a B2B billing & settlement platform for mobility services, integrating payment gateways, tax invoices, and multi-tenant subscriptions using Java/Kotlin, Spring Boot, PostgreSQL, Kafka, and AWS.
IPECS - Backend Developer
Build and scale the backend of an AI-powered unified communications platform using Node.js, Python, and Kubernetes, integrating LLM, RAG, and GenAI features.
Backend Software Engineer
Build and optimize the backend for Suprema’s BioStar biometric access-control platform, handling enterprise-scale data with TDD, DDD, and MSA while ensuring security and performance.
Backend Engineer
Builds and operates the backend for a nationwide EV-charging platform, including member, payment, and credit-ledger systems using Java/Kotlin and Spring Boot on AWS EKS.
Staff Backend Engineer, Traffic Management
Build and maintain high-availability, low-latency traffic-management systems in Java, using AI to boost developer productivity across Coupang’s ecommerce platform.
Senior Backend Engineer, Cloud Infrastructure Automation
Designs and scales high-availability cloud infrastructure and backend services for Coupang’s e-commerce platform, focusing on sub-millisecond latency and 99.999% uptime using Terraform, Kubernetes, and multi-cloud (AWS/GCP/Azure).
Staff Backend Engineer, Lending Engineering
Build and run the backend systems that power Coupang Financial’s lending products, handling large-scale transactions and ensuring data integrity and system stability.
Senior Backend Engineer
[Coupang Pay] Senior Back-end Engineer [L5] (Core Payment) Location: Seoul, South Korea Department: Coupang Pay Tech 본 공고는 재직 임직원을 대상으로 하는 사내 공모 전용입니다. ( 임직원 추천은 Link 로 진행 ) This posting is exclusively for internal…
Backend Engineer (Market Data)
Builds ultra-low-latency market data pipelines to ingest, process, and distribute real-time trading data (KRX, NXT, US exchanges) via custom protocols (FIX, WebSocket, TCP/UDP) and Kafka, optimizing for throughput, reliability, and sub-millisecond performance in a 24/7 trading environment.
Senior Backend Engineer (7년 이상)
Lead the architecture of a high-traffic, real-time EV-charging backend using Kotlin/Java and Spring Boot, handling millions of WebSocket connections and OCPP protocols.
Senior Back-end Engineer (Cloud Infrastructure Automation)
Build and scale high-performance backend services and cloud infrastructure for Coupang’s ecommerce platform, using Go, Python, Kubernetes, and Terraform to achieve 99.999% uptime and sub-millisecond latency.
Staff, Back-end Engineer (Traffic Management)
Build and maintain high-availability, low-latency traffic-management systems in Java, using AI tools to boost developer productivity across Coupang’s backend teams.
Backend (Python) 개발자
Build a web-based robot framework in Python, integrating cameras, robots, and AI models via FastAPI and React; log robot actions and develop test playback tools.
[플레이오] Backend Engineer (Python)
Backend engineer developing and managing Python APIs and batch data processing pipelines (MySQL, AWS S3) for Playio, a gaming marketing platform.
AI Backend Engineer
Build and deploy AI-native backend services using LLMs, RAG, and web agents to automate document processing and decision-making for enterprise clients.
Backend Engineer, AI (Agent Systems)
Build and run backend systems that orchestrate AI models into fast, reliable APIs for a proactive smart assistant, handling inference pipelines and production reliability.
Backend Engineer
Build and maintain backend APIs for a real-time delivery platform, handling high-traffic systems with Java/Spring, AWS, and Kafka to optimize logistics operations.
Senior Backend Engineer(Mobile Platform)
Builds and operates backend systems that connect mobile apps with connected cars, enabling seamless real-time experiences across both platforms.
Backend Engineer(Trading Platform)
Builds and operates the core backend systems for a domestic and international stock-trading platform, focusing on order execution, ledger, and settlement while ensuring high availability and data integrity.