Senior Software Engineer - Bilingual

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.

Job Overview

Marketech International Corporation USA (MICU) is seeking a Senior Software Engineer to design, develop, and maintain enterprise software applications, with a focus on full-stack development, system modernization, and business process automation.

This position will support internal business systems, including ERP applications, database management, and third-party integrations, while ensuring application performance, reliability, and scalability.

The ideal candidate has strong experience in C#/.NET, React, SQL databases, and cloud-based technologies, with the ability to independently manage complex development tasks, contribute to technical architecture decisions, and provide technical guidance to junior developers.

Key Responsibilities

• Design, develop, test, and maintain full-stack enterprise applications using C#/.NET, ASP.NET Core, React, TypeScript, and JavaScript.

• Modernize legacy business applications and support ERP-related modules, including inventory, accounting, and internal operational systems.

• Develop and integrate RESTful APIs to support communication between internal applications and third-party platforms.

• Design, maintain, and optimize relational databases, including Microsoft SQL Server and PostgreSQL.

• Identify and resolve performance bottlenecks, application defects, and database-related issues.

• Develop scalable backend services, cloud-based solutions, and automated business workflows.

• Implement and maintain CI/CD pipelines, automated testing environments, and deployment processes.

• Collaborate with cross-functional teams to gather technical requirements and deliver reliable software solutions.

• Conduct code reviews, troubleshoot production issues, and maintain technical documentation.

• Provide technical guidance and support to junior developers while contributing to software architecture and development best practices.

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical field.

• 5+ years of professional software development experience, preferably in enterprise application development.

• Strong proficiency in C# and .NET/.NET Core, including ASP.NET Core and backend application development.

• Hands-on experience with React, JavaScript, TypeScript, HTML, and CSS.

• Experience designing and developing RESTful APIs and integrating third-party services.

• Strong knowledge of relational databases, particularly Microsoft SQL Server and PostgreSQL.

• Experience with database design, SQL query optimization, and performance troubleshooting.

• Familiarity with Git, CI/CD workflows, debugging, testing, and software deployment.

• Ability to independently develop, maintain, and troubleshoot complex software applications.

• Strong analytical, problem-solving, and cross-functional communication skills.

• Proficiency in Mandarin Chinese and English is required.

Preferred Qualifications

• Experience developing or modernizing ERP, inventory management, accounting, or other enterprise business systems.

• Experience with cloud platforms such as AWS or Microsoft Azure.

• Familiarity with Docker, Jenkins, Azure DevOps, or similar DevOps tools.

• Experience with microservices architecture, cloud-native applications, and distributed systems.

• Familiarity with monitoring and performance tools such as Grafana or AWS CloudWatch.

• Experience with additional frontend frameworks, including Angular or Vue.js.

• Experience with Python for scripting, automation, or backend development.

• Experience with automated testing, workflow automation, or containerized deployments.

• Experience in manufacturing, semiconductor, or enterprise operations environments.

Equal Employment Opportunity (EEO)

All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by applicable local, state, or federal law.