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Toss

38 jobs

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38 jobs Posted Sort

ML Engineer (OCR)

ML Engineer on Toss's Vision Service Team developing and productionizing OCR and Document AI models — text detection/recognition, layout analysis, VLM-based end-to-end OCR, key information extraction, and document fraud detection for financial documents and global eKYC — including data strategies, benchmarking, and GPU serving with Triton.

AI API Generative AI GPU Machine Learning +4 skills

Server Developer (Platform Division)

Open 110d APACContract

Builds and operates backend platforms for payments, settlements, contracts, and personalized services at a leading South Korean fintech company.

AI CRM Machine Learning

Data Engineer (금융데이터/자문)

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.

AI Airflow API Claude Code ClickHouse +11 skills

Data Engineer (금융데이터/DRE)

Open 24d APACContract

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

AI Airflow Argo CD Claude Code ClickHouse +17 skills

AI Engineer (Commerce)

Build and deploy AI models (LLM, RAG, multimodal) to automate commerce tasks like seller evaluation and product search at Toss’s ecommerce unit.

AI Hugging Face LLM Machine Learning Transformers

AI Engineer (Model)

Build, train, and evaluate in-house large language models to replace costly commercial LLMs for Toss’s services, focusing on Korean language and domain-specific capabilities.

AI DeepSpeed LLM Machine Learning Quantization +2 skills

80M – 120M KRW

AI Platform Engineer (Platform)

Build and operate the AI platform that lets teams at Toss rapidly experiment with and deploy LLM-based systems like RAG and Agents, focusing on retrieval, generation, and vector search components.

AI Anthropic API GCP LLM +5 skills

AI Platform Engineer (Serving)

Build and optimize production-grade LLM serving systems using frameworks like vLLM and Triton to run large-scale models reliably and efficiently.

AI GPU LLM Machine Learning RAG +2 skills

AML Monitoring Manager

합류하게 될 팀에 대해 알려드려요 토스뱅크 AML Monitoring Team은 Legal & Compliance Division에 소속되어 의심거래보고(STR) 업무를 수행하고 있어요. 토스뱅크 자금세탁방지 조직은 의심거래보고를 담당하는 AML Monitoring Team과 자금세탁방지 기획 및 운영을 담당하는 AML Team으로 나눠져 있지만, 두 팀은 토스뱅크가 자금세탁방지…

AI LLM Machine Learning

Data Analyst (7년 미만)

Data Analyst at Toss Securities analyzes mobile product metrics (LTV, retention, cohorts) using SQL and A/B testing to drive product decisions in a fintech environment.

Machine Learning Tableau

Data Product Manager (AI)

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.

AI LLM Machine Learning

ML Backend Engineer

Designs and builds backend services for AI-driven banking products, focusing on scalable ML model serving and robust server architecture in a microservices environment.

AI Kotlin Machine Learning Python

100M – 150M KRW

ML Engineer (커뮤니티 추천)

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.

API ClickHouse Elasticsearch FastAPI Grafana +17 skills

120M – 200M KRW

ML Engineer [전문연구요원]

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.

AI Hadoop Kubernetes LLM Machine Learning +7 skills

ML Engineer (Commerce Recommendation)

Builds and improves machine-learning models that predict click-through and conversion rates to optimize product recommendations for Toss’s commerce platform using PyTorch, TensorFlow, and LightGBM.

Machine Learning PyTorch TensorFlow

ML Engineer (LLM)

Build, fine-tune, and operate LLM/NLP models to simplify complex financial-securities information into user-friendly services at a Korean fintech company.

AI Fine Tuning LLM Machine Learning NLP

ML Engineer (ML/LLM Ops)

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.

Airflow Argo CD AWS Cassandra EKS +20 skills

ML Engineer (Product)

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

AI Fine Tuning Kubernetes LLM Machine Learning +4 skills

Platform Product Owner

Owns internal banking platforms that support loan, deposit, and card teams, designing admin systems and automating workflows to boost productivity for Toss Bank’s staff.

AI LLM Machine Learning SaaS

Product Manager (LLM)

Leads end-to-end planning, experimentation, and delivery of AI/ML-powered features for a Korean neobank, collaborating with data scientists and engineers to drive user and business impact.

AI LLM Machine Learning