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Builds and operates financial-data products for Toss Core, designing scalable DW models and BI strategies to unify revenue, cost, asset, and liability data across the org.
Designs and maintains data models for Toss’s commerce, ads, payments, growth, and business domains, ensuring reliable, standardized data for analytics and product development using SQL, Python, and Hadoop.
Build and maintain scalable data pipelines and infrastructure to support Toss’s fintech products and analytics needs.
Build and maintain data pipelines to power Toss's advertising platform, ensuring reliable data flow for analytics and ad targeting.
Designs and operates scalable data pipelines (ingestion, streaming, batch) for real-time user behavior analytics, enabling targeting, recommendations, and performance tracking in a fintech platform. Core techs: Spark, Kafka, Flink, Airflow, and distributed storage (HBase, Cassandra).
Build and optimize real-time data pipelines for Toss Securities, using Kafka, Flink, and OLAP systems to process high-volume financial transactions instantly.
#LI-DNI
Leads end-to-end AI/ML product development at a fintech bank, defining user-facing features, collaborating with data scientists and engineers, and driving business impact through experiments and metrics.
Leads UX strategy for Toss Securities, defining core investment-product problems and driving user-centric design across the team to scale trust and experience alongside business growth.
Leads hardware quality for Toss’s payment terminals, defining tests, auditing global manufacturing partners, and driving root-cause fixes to hit yield and reliability targets.
Develops and optimizes Android-based payment terminal software, collaborating with hardware/firmware teams to resolve system-level issues (framework, HAL, native layers) and ensure real-world device stability from development to post-production.
Designs and executes QA tests for Android-based payment terminals, focusing on hardware-software integration, test automation, and field issue analysis to ensure release quality and improve testing processes.
Build and maintain Kubernetes-based cloud-native infrastructure at a leading Korean fintech company, automating deployments and improving developer experience.
Build and refine CI/CD pipelines and Kubernetes-based infrastructure for Toss Securities, focusing on developer experience and robust monitoring to enable rapid, safe deployments.
Build and maintain Kubernetes-based cloud-native platforms to enable fast, safe deployments and resilient operations for Toss’s offline payment ecosystem.
Build and maintain cloud-native infrastructure on AWS EKS to enable fast, secure deployments for insurance products using Kubernetes, Terraform, and observability tools.
Build and refine Kubernetes-based CI/CD pipelines and observability tooling to help Toss developers deploy and debug services at scale.
합류하게 될 팀에 대해 알려드려요 토스증권의 Equity Operations Team은 국내주식, 대출 관련 정책과 운영까지 책임지는 팀 이에요. 토스증권이 빠르게 진화하는 만큼, 그 뒤에서 정책과 제도가 어긋나지 않게 설계하고 지키는 일이 점점 더 중요해지고 있어요. Equity Operations Team은 각 제품 조직(사일로)이 서비스 고도화에 집중할 수 있도록, 다양한 제도의…
Support the CEO of a fintech company by managing schedules, prioritizing meetings, and coordinating communication to ensure strategic decisions are made efficiently.
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