Skip to content
Search jobs inside your AI agent. Claude, ChatGPT, Claude Code, Codex, Gemini, Cursor and Grok
Connect

Backend Jobs in South Korea

There are 147 open Backend jobs in South Korea on freehire right now. 70 of them were posted recently. The skills employers ask for most often are java, api and ai.

Most requested skills

  • java 55%
  • api 52%
  • ai 48%
  • aws 46%
  • spring 37%
  • kubernetes 35%
  • python 29%
  • kotlin 26%

How the work is done

  • Onsite 10 · 7%
  • Hybrid 9 · 6%
  • Remote 4 · 3%

Visa sponsorship offered in 74% of the 19 postings that state a position on it.

Seniority

  • Senior 26
  • Staff 17
  • Lead 4
  • Principal 2
  • C-level 1
  • Junior 1

Who is hiring

  • 1000+ employees 28
  • 501-1000 employees 8
  • 11-50 employees 1
  • 51-200 employees 1
147 jobs
센트비
4 weeks ago Apply by

Backend Team Lead (Go/Java)

APACLead
South Korea
Seoul

주요업무 [SentBe Backend 팀을 소개합니다] 안녕하세요! SentBe Backend팀 입니다. 저희 팀은 글로벌 송금 서비스를 안정적이고 효율적으로 운영하기 위해 열정을 다하고 있습니다. 저희는 배움에 열정적이고, 도전을 즐기며, 함께 성장하는 인재를 찾고 있습니다. 최고의 팀과 함께 의미 있는 개발을 하고 싶다면? 지금 바로 저희와 함께하세요! 🚀 [팀 강점] 확장성과…

Argo CD AWS CI/CD Confluence Docker +13 skills
 Sign in to see your match
Coupang Backed by SoftBank Vision Fund
16 views last month

Manager, Back-end Engineering (Global Operations Technology)

Open 139d APACLead 15 questions
South Korea
Seoul

Leads backend engineering for Coupang’s global logistics and fulfillment systems, designing scalable platforms and data pipelines to optimize delivery and warehouse operations using Java, Spring, AWS, and big-data tools.

Agile Automation AWS Big Data Cassandra +12 skills
 Sign in to see your match
Coupang Backed by SoftBank Vision Fund
16 views last month

Senior Staff, Back-end Engineer (Global Operations Technology)

Open 139d APACFull-timeStaff 15 questions
South Korea
Seoul

Senior engineer leading backend architecture for Coupang’s ultra-fast delivery systems, designing scalable fulfillment tech and driving engineering excellence in AWS using Java/Spring.

Automation AWS Distributed Systems Java Machine Learning +2 skills
 Sign in to see your match
Coupang Backed by SoftBank Vision Fund
14 views last month

Staff, Back-end Engineer (Global Operations Technology)

Open 139d APACFull-timeStaff 15 questions
South Korea
Seoul

Builds and optimizes backend systems for Coupang’s ultra-fast logistics network using Java and Spring, ensuring reliable same-day deliveries at global scale.

Automation CI/CD Cloud E-commerce Event Driven Architecture +8 skills
 Sign in to see your match
Bjak
93 views last month

Backend Developer

Open 111d HybridAPAC, Europe, North America, UK 4 questions
+18
Taipei, Taiwan

Builds and maintains core backend systems for a Southeast Asian AI neobank, including APIs, payments, and financial workflows, using scalable infrastructure.

AI API Authentication Data Quality Fintech +1 skills
 Sign in to see your match
Bjak
162 views last month

Backend Software Engineer - AI Finance Agent

Open 118d RemoteAPAC, Europe, North America, UK 4 questions
+18

Backend engineer building the core systems behind BJAK's AI Finance Agent — reliable APIs, workflows and financial product infrastructure (accounts, transactions, partner integrations, reconciliation) for an AI Neobank spanning insurance, payments, wallet, savings and investing. Remote role, but candidates must already be based in Austria; strong English required.

AI API Data Quality Fintech Observability
Sign in to see your match
LG AI Research
23 views last month

Software Engineer - Backend

Open 81d APAC No extra questions
South Korea
Gangseo-gu, Seoul

Backend engineer building AI services and APIs in Python/Node.js, designing databases, and deploying on cloud with Docker/Kubernetes.

AI API Argo CD AWS CI/CD +16 skills
 Sign in to see your match
Rebellions
8 views last month

Physical Design Engineer Backend

Open 41d On-siteAPAC
South Korea
Gyeonggi-do Seongnam-si Bundang-gu Jeongja-il-ro 156beon-gil 6, R-TOWER 3F–8F, Korea

You will implement RTL-to-GDS physical designs for performance, power, and area. You will perform floorplanning, power planning, placement, clock-tree synthesis, routing, verification, and GDS delivery. You will…

Automation Data Visualization Perl Python Tcl
Sign in to see your match
Xsolla
12 views 2 months ago

Senior Backend Engineer — Korea

Open 50d On-siteAPACSenior No extra questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
South Korea
Seoul

Senior Backend Engineer in Seoul who designs, builds, and operates scalable Go microservices and event-driven systems (Kafka, Docker, Kubernetes) powering Xsolla's game-commerce and payment platform, with production ownership, on-call duties, and architecture improvements. Business-level Korean proficiency is required.

AWS Azure CI/CD ClickHouse Cloud +12 skills
 Sign in to see your match
Xsolla (USA), Inc.
18 views 2 months ago

Senior Backend Engineer

Open 46d APACSenior
Seoul

You will design, build, and maintain backend services and event-driven systems. You will develop Go microservices, make architecture decisions, monitor and improve production systems, write automated tests, participate…

CI/CD Cloud Distributed Systems Docker Event Driven Architecture +4 skills
 Sign in to see your match
materion
5 views 2 months ago

Backend Operator

Open 54d APACFull-time
South Korea
Dangjin City, KOR

At Materion, everyone is included, respected and offered opportunity to grow. Join us! 1. 주요 업무 내용 (Job Description) Cleaning & Packing: 제품 세정 및 포장 2. 자격 요건 (Qualification Requirements) 학력 : 고등학교졸업 이상 공통사항 : 해외여행에…
42dot
10 views 2 months ago

Senior Backend Engineer (Gateway/IAM)

Open 57d HybridAPACSenior 5 questions
South Korea
Pangyo (Software Dream Center)

Senior backend engineer on 42dot's Open Platform Engineering team, designing and running the API Gateway and IAM (authentication/authorization) platform that connects internal services securely and reliably. Focus areas include API gateway operations (Tyk or similar), OAuth 2.0/OpenID Connect, access control, and cloud-native infrastructure like Kubernetes, Istio, and Envoy.

ABAC API API Gateway Authentication Cloud +8 skills
 Sign in to see your match
KabuK Style Inc.
24 views 2 months ago

Backend Engineer, Platform

Open 49d RemoteAPACContractSenior
This is a remote role, but we are ideally looking for candidates based in Japan. Preferred locations in Japan:, Osaka, Fukuoka, Tokyo Candidates based elsewhere in Japan are also welcome to apply. Candidates based in Korea are also acceptable, with Seoul being the preferred location. The role will work closely with teams in Japan, so candidates should be comfortable working across Japan/Korea time zones and collaborating with both internal and external engineering teams. For candidates based in Japan or Korea, local employment arrangements may be available depending on location and individual circumstances.

Backend Engineer, Platform 仕事概要 KabuK Style is building the next generation infrastructure for the global travel industry. Our flagship product, HafH, already connects over 30,000 accommodations across 130+ countries…

API Api Design AWS Cloud Event Driven Architecture +2 skills
 Sign in to see your match
KabuK Style Inc.
15 views 2 months ago

Senior Backend Engineer, Travel Integrations & Distribution

Open 49d RemoteAPACContractSenior
This is a remote role, but we are ideally looking for candidates based in Japan. Preferred locations in Japan:, Osaka, Fukuoka, Tokyo Candidates based elsewhere in Japan are also welcome to apply. Candidates based in Korea are also acceptable, with Seoul being the preferred location. The role will work closely with teams in Japan, so candidates should be comfortable working across Japan/Korea time zones and collaborating with both internal and external engineering teams. For candidates based in Japan or Korea, local employment arrangements may be available depending on location and individual circumstances.

Senior Backend Engineer, Travel Integrations & Distribution 仕事概要 KabuK Style is building the next generation infrastructure for the global travel industry. Our flagship product, HafH, already connects over 30,000…

API AWS Cloud Event Driven Architecture Java +1 skills
 Sign in to see your match
KabuK Style Inc.
22 views 2 months ago

Senior Backend Engineer, Platform Services

Open 49d RemoteAPACContractSenior
This is a remote role, but we are ideally looking for candidates based in Japan. Preferred locations in Japan:, Osaka, Fukuoka, Tokyo Candidates based elsewhere in Japan are also welcome to apply. Candidates based in Korea are also acceptable, with Seoul being the preferred location. The role will work closely with teams in Japan, so candidates should be comfortable working across Japan/Korea time zones and collaborating with both internal and external engineering teams. For candidates based in Japan or Korea, local employment arrangements may be available depending on location and individual circumstances.

Senior Backend Engineer, Platform Services 仕事概要 KabuK Style is building the next generation infrastructure for the global travel industry. Our flagship product, HafH, already connects over 30,000 accommodations across…

API AWS Cloud Cloud Native Event Driven Architecture +4 skills
 Sign in to see your match
VESSL AI
13 views 2 months ago

Backend Engineer (Senior)

Open 62d HybridAPACSenior 1 question
South Korea
Seoul

About the Role VESSL AI의 Backend Software Engineer (Senior)는 GPU 클라우드 플랫폼의 설계와 구현을 리드합니다. VESSL은 여러 데이터센터와 클라우드에 걸쳐 H200·B300부터 GB300 NVL72, Vera Rubin에 이르는 최신 GPU 클러스터를 운영하며, 이를 효과적으로 활용하기 위해 Kubernetes 기반 컨테이너부터 VM,…

AI API Automation Git GPU +7 skills
 Sign in to see your match
VESSL AI
20 views 2 months ago

Backend Engineer (Junior)

Open 62d HybridAPACJunior 1 question
South Korea
Seoul

About the Role VESSL AI의 Backend Software Engineer 는 GPU 클라우드 플랫폼을 설계하고 구현합니다. VESSL은 여러 데이터센터와 클라우드에 걸쳐 H200·B300부터 GB300 NVL72, Vera Rubin에 이르는 최신 GPU 클러스터를 운영하며, 이를 효과적으로 활용하기 위해 Kubernetes 기반 컨테이너부터 VM, 베어메탈에 이르기까지…

AI API Automation Docker Git +7 skills
 Sign in to see your match
Bithumb
18 views 3 months ago

Backend Developer

Open 82d On-siteAPAC
South Korea
Seoul

Build and scale the backend of a cryptocurrency exchange using Java/Kotlin, Spring Boot, and AWS; design RESTful APIs, optimize performance, and ensure transactional consistency.

API AWS Fintech Git Java +6 skills
 Sign in to see your match
Bithumb
14 views 3 months ago

Staking Backend Engineer

Open 83d On-siteAPAC
South Korea
Seoul, Gangnam-gu, Teheran-ro 124, Samwon Tower, Bithumb headquarters

Build and maintain the backend for a crypto exchange’s staking service, integrating on-chain protocols and running validator nodes for networks like Ethereum and Solana.

Blockchain Ethereum Java Kotlin Smart Contracts +2 skills
 Sign in to see your match
OpenAsset
11 views 3 months ago

Backend Developer

Open 83d On-siteAPAC
South Korea
서울 마포구 마포대로 86, 창강빌딩 8층

Build and maintain backend servers for a won-based stablecoin platform, integrating APIs, databases, Redis, and blockchain networks.

API Blockchain Redis
Sign in to see your match