バックエンドエンジニア（審査/債権システム）
Core
Design, develop, and operate mission-critical business systems for credit card approval, credit management, and debt collection.
Role type
Senior backend engineer (credit risk and operations)
Builds
Core business systems for credit approval, credit management, and debt collection
Domain
Fintech / Credit Card / Financial Services
Deliverable
production ML models
Required skills
Java, Kotlin, Go, RDBMS, RESTful API, gRPC, Git, Docker, AWS
Preferred skills
Financial/credit/payment systems, Spring Boot, large-scale traffic/batch processing, cloud operations, team lead experience, generative AI
Technologies
Java, Kotlin, Go, Spring Boot, MyBatis, GitHub, JUnit, VSCode, Docker, AWS (ECS, EKS, EC2, ECR, RDS, Lambda, MWAA, Step Functions, S3, SNS, SQS, KMS, Secrets Manager, VPC, CloudWatch, CloudTrail, CodePipeline, CodeDeploy, CodeBuild, CloudFormation), GCP (BigQuery, Looker Studio), Salesforce, Genesys Cloud, Vue.js
Responsibilities
Design and develop core systems for credit approval and debt management; Build data integration platforms with external credit bureaus; Implement risk management logic including scoring, fraud detection, and AML; Develop real-time and large-scale data processing for high-precision approval functions; Create operational efficiency features for customer search and debt collection; Design systems balancing high security and stable transaction processing
Seniority
Senior, hands-on IC
