Toss

Information Security Manager (보안 점검)

Cloud ISO 27001 Kubernetes Network Security Pci Dss

Oversee and audit security policies, compliance, and architecture for Toss Bank’s fintech platform, ensuring regulatory adherence and safe digital banking operations.

IT Assurance Manager

# 합류하게 될 팀에 대해 알려드려요 - 토스뱅크 IT Assurance Manager는 IT Assurance Team(IT통제검증팀)에 소속될 예정이에요. - IT Assurance Team(IT통제검증팀)은 IT Audit Team(IT자체감사팀)과 밀접하게 협업하며, Head of Technology(CTO) 산하에 소속될 예정이에요. - IT Assurance Team은…

AI Cloud Kubernetes

IT Audit Manager

# 합류하게 될 팀에 대해 알려드려요 - 토스뱅크 IT Audit Manager는 IT Audit Team(IT자체감사팀)에 소속될 예정이에요. - IT Audit Team(IT자체감사팀)은 IT Assurance Team(IT통제검증팀, 신설)과 밀접하게 협업하며, Head of Technology(CTO) 산하에 소속되어 있어요. - IT Audit Team은 토스뱅크의 IT 운영…

AI Cloud Kubernetes

ML Engineer (커뮤니티 추천)

API ClickHouse Elasticsearch FastAPI Grafana +17 skills

Build and improve a community-feed recommendation system for a stock-trading app used by 4 million monthly active users, using Python, PyTorch, and cloud-native serving stacks.

120M – 200M KRW

ML Engineer [전문연구요원]

AI Hadoop Kubernetes LLM Machine Learning +7 skills

ML Engineer at Toss builds and deploys recommendation, search, and AI models across fintech and ecommerce to optimize product exposure, CTR, and user experience using PyTorch, Spark, and Kubernetes.

ML Engineer (ML/LLM Ops)

Airflow Argo CD AWS Cassandra EKS +20 skills

Build and operate ML/LLM platforms for a Korean neobank, focusing on stable, scalable, and secure model training, deployment, and serving using tools like MLflow, Kubeflow, Triton, and vLLM.

ML Engineer (Product)

AI Fine Tuning Kubernetes LLM Machine Learning +4 skills

Builds and deploys AI/ML systems for banking services like fraud detection, lending models, and LLM-based agents in a high-traffic, regulated environment.

Security Audit Manager (정보보호 자체감사자)

Cissp Cloud Kubernetes Network Security

Oversee internal security audits, compliance checks, and control improvements for Toss Bank’s IT and financial systems, ensuring adherence to banking and privacy regulations.

Security Audit Manager (정보보호관리체계 및 기술 담당)

Cloud ISO 27001 Kubernetes WAF

Leads internal security audits for Toss Securities’ IT infrastructure, ISMS-P/ISO 27001 compliance, and data protection systems, collaborating cross-functionally to assess controls, cloud security (MSA/k8s), and incident response processes while drafting remediation plans.

Security Engineer (이벤트 분석 / 사고 대응)

Build and operate detection rules, analyze security events, and automate incident response for Toss’s services in Kubernetes and cloud environments.

Cloud Kubernetes

Security Engineer (이벤트 분석/사고 대응)

Cloud ELK Kafka Kubernetes Splunk

Build and operate a SIEM-based security monitoring system, analyze security events, and respond to incidents for Toss Securities, using tools like Splunk and ELK.

Security Engineer (클라우드 보안)

AI AWS Azure CloudFormation GCP +10 skills

Designs and implements cloud-native security architectures (AWS/GCP/Azure) to protect financial infrastructure, automating compliance and threat detection with Python and Terraform.

Security Engineer(보안 분석 플랫폼 운영)

AWS Elasticsearch ELT ETL Hadoop +7 skills

Security Engineer in the Security Purple Team, responsible for designing, building, and operating SIEM (Splunk, Opensearch, Elasticsearch) and log pipelines (NIFI, KAFKA, Hadoop) across On-Prem, AWS, and K8S environments, focusing on log collection, analysis, and automation.

Security Researcher (APT/인프라 모의해킹)

DevOps Docker Git Gradle Grafana +10 skills

A Security Researcher performs simulated hacking (APT attacks) and infrastructure diagnostics to proactively identify and mitigate vulnerabilities across Toss’s financial systems, collaborating closely with engineering teams to enhance security while balancing usability.

Server Developer (Platform/Product)

API CRM ELK ERP Git +16 skills

Develops and maintains core insurance CRM, ERP, and CMS systems for agents, focusing on automation, security, and scalability using Kotlin/Java and Spring Boot.

Server Developer (Platform)

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.

Server Developer (Product)

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.

Server Developer (Product)

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