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Server Developer (Ads)
Builds and scales high-traffic ad-serving backends for Toss’s in-app ad platform, using Kotlin/Spring and distributed systems like Kafka and Redis.
서버 개발자 (Commerce) (Server Developer)
Builds and operates core commerce systems (search, recommendations, orders, payments, ads) for Toss Shopping, a fast-growing B2C marketplace, using Kotlin/Spring and distributed data stacks.
Server Developer (Financial Marketplace)
Builds and operates scalable backend systems for a Korean fintech super-app’s financial marketplace, handling loans, cards, insurance, and accounts while integrating AI-driven automation.
Server Developer (User Growth)
Builds and operates high-traffic growth features in Toss’s app—like rewards, events, and analytics—using Kotlin/Spring and distributed systems to drive user growth and revenue.
서버 개발자 (Market Platform) (Server Developer)
Develops and optimizes high-performance real-time trading platforms (e.g., stock market data feeds) for Toss Securities, designing scalable architectures for APIs/WebSockets, low-latency event processing, and inter-institution communication using Go, Kotlin/Spring, and Kafka.
Server Developer (Messaging Platform Team)
Server Developer building and operating Toss's messaging platform (push, Alimtalk, email) and A/B testing infrastructure using Kotlin, Java, Spring Boot, Kafka, and MySQL/MongoDB/Redis.
서버 개발자 (Platform) (Server Developer)
Build and maintain the core server platform for Toss’s fintech services using Java/Kotlin and Spring, focusing on scalability, monitoring, and distributed systems.
서버 개발자 (Platform) (Server Developer)
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)
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)
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)
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)
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)
Builds and scales server systems for Toss Income, a fintech service simplifying tax refunds and income management using Kotlin, Spring, and AWS.
서버 개발자 (Product) (Server Developer)
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.
서버 개발자 (Product) (Server Developer)
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.
서버 개발자 (SRE) (Server Developer)
Builds and operates resilient payment infrastructure, focusing on stability, scalability, and low latency using Java, Kubernetes, and observability tools.
Site Reliability Engineer (SRE Team)
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.
Tech Lead (Server)
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.
Site Reliability Engineer
Maintains and scales Toss’s payment and financial services infrastructure to ensure high availability and performance using cloud-native tools and DevOps practices.
Server Developer (Finance Product)
# 합류하게 될 팀에 대해 알려드려요 - Finance Product Division은 토스의 서비스에서 발생하는 계약, 구매, 결제, 정산, 지급, 회계, 리스크 관리가 하나의 흐름으로 이어지도록 제품과 시스템을 만들어요. 사업이 빠르게 성장해도 돈의 흐름을 정확하게 파악하고 안전하게 운영할 수 있는 기반을 만드는 조직이에요. - Finance Product Division 에 속해…