Java Software Engineer - Java, Spring Boot, Korean

CyberCoders; Costa Mesa (CA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Health (Individual and Dependents) 100

Dental

Vision

401K

15 days PTO

Job summary

CyberCoders is seeking a Software Engineer to design, implement, and maintain backend services for production systems. The role emphasizes robust, scalable applications using Java and Spring Boot, with collaboration across product and engineering teams.

Fluency in Korean is required to communicate with stakeholders and documentation. The engineer will design, develop, and maintain APIs, optimize queries for large datasets, and participate in CI/CD with automated tests.

Qualifications

• Bachelor's degree or equivalent practical experience.
• Experience with Java + Spring Boot, or Nest.js.
• Experience with large datasets and writing complex database queries.
• Fluency in Korean (spoken and written) required for communication.

Responsibilities

• Design, develop, and maintain backend services and APIs using Java and Spring Boot.
• Collaborate with product managers, designers, and engineers to translate requirements into technical solutions.
• Write clean, testable, and maintainable code; participate in code reviews and follow best practices.
• Build and maintain microservices and RESTful APIs, ensuring reliability and scalability.
• Optimize application performance and database queries for services that handle large datasets.
• Implement automated tests and CI/CD pipelines to ensure fast, reliable releases.
• Troubleshoot production issues, perform root cause analysis, and implement long-term fixes.
• Document system designs, APIs, and runbooks; communicate status and trade-offs in Korean and English as needed.
• Mentor junior engineers and contribute to team process improvements.

Skills

Java

Spring Boot

Nest.js

Large datasets

Database queries

Korean language

Education

Bachelors degree in Computer Science or related field

Job description

Software Engineer

We are seeking a motivated Software Engineer to design, implement, and maintain backend services for production systems. The role focuses on building robust, scalable applications using Java and Spring Boot, collaborating across product and engineering teams, and delivering high-quality code. Fluency in Korean is required to communicate with stakeholders and documentation. Familiarity with Nest.js, working with large datasets, and advanced database query optimization are strong pluses.

Key Responsibilities

• Design, develop, and maintain backend services and APIs using Java and Spring Boot.
• Collaborate with product managers, designers, and engineers to translate requirements into technical solutions.
• Write clean, testable, and maintainable code; participate in code reviews and follow best practices.
• Build and maintain microservices and RESTful APIs, ensuring reliability and scalability.
• Optimize application performance and database queries for services that handle large datasets.
• Implement automated tests and CI/CD pipelines to ensure fast, reliable releases.
• Troubleshoot production issues, perform root cause analysis, and implement long-term fixes.
• Document system designs, APIs, and runbooks; communicate status and trade-offs in Korean and English as needed.
• Mentor junior engineers and contribute to team process improvements.

Qualifications

• Bachelors degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Experience with Java + Spring Boot, or Nest.js.
• Experience working with large datasets and writing complex database queries.
• Fluency in Korean (spoken and written) required for effective team and stakeholder communication.

Benefits

Benefits include:

• Health (Individual and Dependents 100% coverage)
• Dental
• Vision
• 401K
• 15 days PTO