Java Developer

Responsibilities

• Design, develop, and iterate Java-based financial credit risk systems covering the full lifecycle from pre-loan to post-loan monitoring.
• Build high-availability APIs capable of handling peak concurrency with low latency requirements.
• Utilize Java ecosystems including Spring Boot, Cloud Alibaba, Nacos, and Seata to ensure microservice stability and data consistency.
• Translate complex risk rules and scoring models into efficient Java code and develop dynamic rule platforms.
• Integrate Machine Learning models (TensorFlow/PyTorch) via RESTful APIs for real-time scoring.
• Connect to diverse financial data sources using MyBatis or Spring Data JPA and build risk data marts.
• Process batch data and perform monthly credit synchronization using Flink or Spark.
• Implement robust data security measures, including RBAC and audit logs, to ensure regulatory compliance.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or FinTech.
• 3+ years of experience in backend development.
• 1.5+ years of specialized experience in financial credit risk within banks, consumer finance, or fintech.
• Proficiency in Java (JDK 11+) including JVM tuning and concurrency management.
• Strong experience with Spring Boot, Spring Cloud, MySQL (sharding), and Redis (cluster).
• Familiarity with distributed systems, circuit breaking, and distributed locks.

Preferred Qualifications

• Hands-on experience with Java-based rule engines such as Drools or Easy Rules.
• Experience with real-time or batch data processing using Flink or Spark.
• Knowledge of financial security protocols (API signatures, SM4/SM2) and cybersecurity laws.
• Experience in ML model engineering or holding relevant certifications like FRM, CISP, or CFA.

About the Company

Astra Tech is a leading technology group focused on building advanced digital ecosystems. Through our Quantix Engineering division, we develop cutting-edge financial and technological solutions designed to meet the highest standards of security and performance.