Bilingual Senior Software Engineer: Full-Stack Modernization

Marketech International Corporation USA; Phoenix (AZ); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Full medical/dental/vision/Life INS.

Paid Time Off (PTO)

401(k) Plan

Job summary

Marketech International Corporation USA is seeking a bilingual Senior Software Engineer to lead full-stack development, modernize legacy systems, and automate business processes for internal ERP applications and integrations. You will build scalable backend services, design APIs, optimize databases (SQL Server, PostgreSQL), and mentor junior developers while shaping technical architecture.

This onsite role in Phoenix, AZ requires strong C#, .NET Core, and English/Mandarin proficiency, with

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field.
• 5+ years of professional software development experience, preferably in enterprise applications.
• Strong proficiency in C#, .NET/.NET Core and ASP.NET Core.
• Strong knowledge of Microsoft SQL Server and PostgreSQL, including database design and query optimization.
• Experience building RESTful APIs and integrating third-party services.
• Familiarity with Git, CI/CD, testing and deployment.
• Proficiency in English and Mandarin Chinese.

Responsibilities

• Lead full-stack development and modernization of legacy applications.
• Build scalable backend services, cloud-based solutions and automated workflows.
• Develop and integrate RESTful APIs connecting internal apps with third-party platforms.
• Design, maintain and optimize relational databases (SQL Server, PostgreSQL).
• Set up and maintain CI/CD pipelines, automated testing environments and deployment processes.
• Mentor junior developers and contribute to architecture and development best practices.

Skills

Bilingual English/Mandarin

Software development

RESTful APIs

Education

Bachelor's degree in Computer Science

Tools

AWS

Azure

Docker

Git

CI/CD

SQL Server

PostgreSQL

ASP.NET Core

Job description

Marketech International Corporation USA is seeking a bilingual Senior Software Engineer to lead full-stack development, modernize legacy systems, and automate business processes for internal ERP applications and integrations. You will build scalable backend services, design APIs, optimize databases (SQL Server, PostgreSQL), and mentor junior developers while shaping technical architecture.

This onsite role in Phoenix, AZ requires strong C#, .NET Core, and English/Mandarin proficiency, with