Java Software Engineer

About Us Founded in 1988, Marketech International Corp. (MIC) is a global technology and engineering company supporting semiconductor, high‑tech manufacturing, cleanroom, and mission‑critical facility projects. MIC provides turnkey facility integration solutions, including cleanroom and MEP construction, DI water, gas and chemical supply systems, wastewater treatment, facility monitoring and control systems, installation, and maintenance services. Through Marketech International Corporation USA, we support major semiconductor and industrial projects across the United States.

Marketech International Corporation USA is seeking an experienced Java Software Engineer to design, develop, test, and maintain enterprise‑level Supply Chain Management applications and related business systems. This role will support the full software development lifecycle, including application design, backend and frontend development, API integration, testing, deployment, production support, troubleshooting, and system optimization. The Java Software Engineer will work closely with internal users, operations teams, and distributed engineering teams to deliver scalable, reliable, and high‑quality software solutions.

The ideal candidate has strong full‑stack development experience with Java, Spring Boot, SQL Server, React, and Type Script. Mandarin Chinese communication skills are required to support communication with key stakeholders.

• Design, develop, test, and maintain enterprise‑level Supply Chain Management applications and related business systems.
• Participate in the full software development lifecycle, including design, development, testing, deployment, production support, and ongoing maintenance.
• Develop backend services using Java, Spring Boot, MyBatis‑Plus, and SQL Server.
• Develop and maintain frontend applications using React and Type Script.
• Design, build, and maintain RESTful APIs and integrations with internal and external systems.
• Support system enhancements, application improvements, bug fixes, and ongoing feature development.
• Troubleshoot production issues, identify root causes, and implement effective technical solutions.
• Optimize system performance, application reliability, database performance, and overall user experience.

• Develop scalable backend services, application logic, and business process workflows.
• Create and maintain high‑quality SQL Server stored procedures, queries, and database logic.
• Support database design, data validation, data processing, and application‑level reporting needs.
• Use MyBatis‑Plus or similar persistence frameworks to support efficient data access and application functionality.
• Build and maintain secure, reliable, and well‑documented APIs.
• Support system integrations with internal business systems, third‑party applications, and operational platforms.

• Develop and maintain frontend applications using React and Type Script.
• Translate business requirements into user‑friendly, functional, and maintainable application features.
• Collaborate with users and operations teams to understand system needs, workflow issues, and improvement opportunities.
• Support user testing, issue resolution, system training, and day‑to‑day application support as needed.
• Ensure applications are responsive, reliable, and aligned with business process requirements.

• Participate in system testing, integration testing, deployment, and post‑deployment support.
• Support build, deployment, monitoring, troubleshooting, and continuous improvement activities.
• Document technical designs, system workflows, database logic, APIs, configuration details, and support procedures.
• Maintain clear and accurate technical documentation for internal IT, engineering, and business users.
• Support day‑to‑day IT‑related tasks, system maintenance, and business application needs as required.

• Collaborate with internal stakeholders, users, operations teams, and distributed engineering teams to deliver high‑quality software solutions.
• Communicate technical issues,…