Tech jobs
Job listings
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 (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.
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.
시스템 엔지니어 (GPU) (Systems Engineer)
Designs, builds, and operates GPU infrastructure for AI/ML workloads, including bare-metal clusters, networking, and monitoring.
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.
데이터 엔지니어 (AI Service) (Data Engineer)
Builds and maintains a global financial data platform for securities, processing real-time market data with AI/ML pipelines using Kafka, Spark, and Iceberg.
Site Reliability Engineer
Build and maintain monitoring, observability, and performance-testing systems to keep Toss Bank’s high-traffic services stable and scalable using Kotlin/Java, Kubernetes, Istio, Kafka, and Prometheus.
Site Reliability Engineer
Site Reliability Engineer on Toss Securities' SRE team in Seoul, responsible for preventing and responding to incidents on a high-traffic service: building monitoring/alerting around SLOs, performing deep root-cause analysis (down to Linux kernel, network, and eBPF level), and automating operations with internal tooling. Stack includes Java/Kotlin, Kubernetes/Istio, Prometheus/Grafana/ELK, and Go/
데이터 엔지니어 (DataOps) (Data Engineer)
DataOps engineer in Toss Securities' Data Infra Team, operating the Elasticsearch-based log/search platform, Milvus vector search, and a data-dedicated Kubernetes deployment platform with CI/CD pipelines so data workloads ship fast while meeting financial compliance standards.
데이터 엔지니어 (금융데이터/DRE) (Data Engineer)
Data Reliability Engineer at Toss Securities (Seoul) who owns the full lifecycle of financial data — disclosures, earnings, market prices, news — designing and running ingestion/validation pipelines and a data-quality platform with data contracts and lineage tracking. Core stack: Python, SQL, Airflow, Kubernetes, and distributed query engines like Spark, Impala, and ClickHouse, with LLM-based auto
서버 개발자 (Product Foundation) (Server Developer)
# 합류하게 될 팀에 대해 알려드려요 - 토스뱅크 Server Developer (Product Foundation)는 Product Foundation(제품 기반) 도메인 소속으로, 토스뱅크의 기반이 되는 제품을 만들고 있어요. - 혁신적인 은행 상품이 빠르고 안정적으로 출시될 수 있게 지원하며, 고객이 은행 서비스를 안심하고 이용할 수 있도록 공통 기반 시스템을 만들어요. - 팀원들이…
DevOps Laravel Engineer
Owns the AWS infrastructure, CI/CD pipelines and monitoring behind DeterTech's Laravel applications day to day — managing EC2/RDS/ECS environments with infrastructure-as-code (Terraform/CloudFormation), scaling queues and caching for alarm traffic spikes, and handling security, backups and incident escalation alongside the development team.
Devops Engineer
A contract DevOps engineer role (inside IR35, London hybrid 2-3 days onsite) building CI/CD pipelines, release controls, observability and incident-response automation for AI applications at a financial-services organisation, working alongside AI and platform engineers. Core stack: Git, Python/Bash, Docker, Terraform, GitHub Actions/Azure DevOps/GitLab CI, AWS or Azure.
Senior Frontend Engineer (React/React Native)
Senior frontend engineer at Emma, a personal finance (money management) app, working on its mobile and web apps with React, React Native, Next.js, and TypeScript. Fully office-based in London, Monday to Friday.
Mid Level Frontend Engineer (React/React Native)
Frontend engineer building Emma's personal-finance mobile and web apps with React, React Native, TypeScript and Next.js. Fully office-based in London (Mon-Fri), working on a feature-heavy roadmap for the money-management app.
Ведущий разработчик Java
Leads Java backend development for money transfer services using PostgreSQL, Kafka, and Spring, reviewing code and shaping architecture in a fintech team.