Tech jobs

서버 개발자 (Platform) (Server Developer)

API API Gateway Argo CD Ceph Cloud +19 skills

Builds and operates high-availability platform services for Toss Bank, including messaging, API gateways, monitoring, and caching, using Kotlin/Java and Spring ecosystems.

Server Developer (Server Platform Team)

API API Gateway Argo CD Cassandra Cloud +26 skills

Build and maintain the core platform infrastructure supporting all Toss services—distributed systems, API gateways, and developer productivity tools. Work with Kotlin/Java, Spring Boot/Cloud, Redis, Kafka, and Kubernetes to improve performance, security, and reliability across a high-traffic fintech environment.

서버 개발자 (Platform) (Server Developer)

Elasticsearch ELK Go Grafana Java +9 skills

Builds shared backend services and frameworks in Java/Kotlin with Spring to help teams launch and scale securities services efficiently.

서버 개발자 (Product) (Server Developer)

Elasticsearch ELK Grafana Hibernate InfluxDB +12 skills

Build and maintain server-side components for Toss Securities using Java/Kotlin, Spring, Redis, Kafka, and Kubernetes, focusing on high-traffic trading systems and real-time data processing.

서버 개발자 (Product) (Server Developer)

Hadoop Kafka Kotlin MongoDB MySQL +2 skills

Builds and maintains the backend for Toss’s consumer-facing apps (payments, shopping, ads, etc.) using Kotlin, Spring, and distributed systems at scale.

서버 개발자 (Product) (Server Developer)

AWS Cloud Docker Elasticsearch Git +11 skills

Builds and scales server systems for Toss Income, a fintech service simplifying tax refunds and income management using Kotlin, Spring, and AWS.

Open 123d APAC 2 questions

서버 개발자 (Product) (Server Developer)

Argo CD Cloud Elasticsearch Grafana Hibernate +14 skills

Designs and develops high-availability, scalable server systems for Toss’s offline payment solutions, focusing on system architecture, real-time traffic handling, and end-to-end service reliability using Java/Kotlin, Spring, Kafka, and cloud-native tools.

Open 123d APAC 4 questions

서버 개발자 (Product) (Server Developer)

Argo CD Ceph Cloud Docker ELK +17 skills

Builds and maintains scalable, secure banking services using Kotlin/Java and Spring, focusing on high-traffic systems and innovative fintech products in a collaborative squad model.

120M – 200M KRW

Site Reliability Engineer (SRE Team)

Argo CD Cassandra Ceph Cloud Docker +22 skills

Site Reliability Engineer at Toss in Seoul, maintaining and improving the stability, scalability, and performance of high-traffic systems using Kubernetes, Java/Kotlin, and monitoring tools.

Open 123d APACLead 2 questions

Tech Lead (Server)

Hadoop Kafka Kotlin MongoDB MySQL +2 skills

Leads the Data Platform team at Toss, building and operating scalable data pipelines and distributed systems (Hadoop, Kafka, Spark, Flink) to power real-time analytics and services for Korea’s leading fintech app.

Open 104d APAC 1 question

Site Reliability Engineer

Argo CD AWS Cloud Containerd DevOps +20 skills

Maintains and scales Toss’s payment and financial services infrastructure to ensure high availability and performance using cloud-native tools and DevOps practices.

데이터 엔지니어 (금융데이터/재무) (Data Engineer)

Open 90d APAC 1 question

AI Airflow API Claude Code ClickHouse +10 skills

Builds and maintains scalable data pipelines for financial market data, transforming raw disclosures and market feeds into structured investment insights using Python, SQL, and distributed systems.

데이터 엔지니어 (금융데이터/자문) (Data Engineer)

Open 88d APAC 1 question

AI Airflow API Claude Code ClickHouse +11 skills

Builds and operates data pipelines for Toss Securities’ wealth-management advisory services, integrating partner portfolio data, customer behavior, and regulatory-grade analytics to power portfolio recommendations and content.