Roles & Responsibilities

- Develop Home/Family Care and Monitoring servers

- Design high-performance IoT message processing systems

- Prevent database bottlenecks and monitor system performance

- Build and operate services on AWS infrastructure

- Develop data aggregation and batch processing pipelines

Essential Qualifications

- Associate’s degree or higher

- 10~20 years of professional experience in a related role

- Experience with Java 17–21 and Spring Boot 3.x

- Hands-on experience with Virtual Threads and high-traffic system architecture

- Proficiency in RDBMS design, indexing, and performance optimization

- Experience in building and managing services on AWS (EC2, S3, RDS, CloudFront, ALB, IAM)

- Experience developing MQTT-based services and operating brokers such as EMQX

- Proven experience handling 50K–100K+ messages per second

- Experience in large-scale data ETL and aggregation processing

Preferred Qualifications

- Experience with MSA architectures (gRPC/Gateway) and message brokers such as Kafka or RabbitMQ

- Experience with PostGIS, spatial queries, and WebGIS applications

- Experience developing and maintaining admin dashboards using Vue 3 or React

- Experience in AI-based time series analysis, anomaly detection, pattern learning, and user behavior analysis

- Experience automating mTLS certificates (CA/RA/EJBCA)

- Hands-on experience with Docker, Kubernetes (EKS), and Linux scripting

Additional Information

- Type of employment: full-time

- Work location : Korea

Hiring Procedure

- Document Screening → Online aptitude test & Practical interview → Final interview → Recruitment medical check-up → On-boarding

Cliking will take you to the recruitment site