Java Software Engineer

About the role

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.

Responsibilities

• Design, develop, test, and maintain enterprise-level Supply Chain Management applications and related business systems.
• Participate in the full software development lifecycle, including application design, backend and frontend development, API integration, 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 TypeScript.
• 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.
• Backend, Database & API Development
• 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.
• Frontend Development & User Support
• Develop and maintain frontend applications using React and TypeScript.
• 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.
• Testing, Deployment & Documentation
• 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.
• Collaboration & Communication
• Collaborate with internal stakeholders, users, operations teams, and distributed engineering teams to deliver high-quality software solutions.
• Communicate technical issues, project status, risks, and support needs clearly and professionally.
• Work cross-functionally to understand business processes and translate operational requirements into system solutions.
• Maintain a proactive, accountable, and solutions-oriented approach to application development and support.

Qualifications

• Mandarin Chinese communication skills required to support communication with key stakeholders.
• Bachelor’s degree in Computer Science, Engineering, Information Technology, or equivalent practical experience.
• Three or more years of full-stack software engineering experience building scalable enterprise applications.
• Strong proficiency in Java, Spring Boot, REST APIs, React, and TypeScript.
• Strong proficiency in SQL Server, including the ability to develop high-quality stored procedures.
• Hands-on experience with MyBatis-Plus or similar persistence/ORM frameworks.
• Solid understanding of software testing, continuous integration, build processes, deployment, and system monitoring.
• Experience troubleshooting production issues, performing bug fixes, and optimizing application performance.
• Able to maintain technical documentation and support business application users.
• Strong collaboration and communication skills, with experience working across distributed engineering teams.

Preferred Qualifications

• Experience with Redis or other in-memory data stores.
• Familiarity with message queues such as Kafka, RocketMQ, or similar technologies.
• Experience supporting supply chain, logistics, operations, manufacturing, or enterprise business systems.
• Familiarity with coding agents or AI-assisted development tools such as Cursor, Claude Code, GitHub Copilot, or similar tools.
• Familiarity with C# or ASP.NET Core.
• Experience supporting enterprise applications in a high-tech, manufacturing, semiconductor, construction, logistics, or supply chain environment.