Principal Software Engineer

Principal Software Engineer

Advantest is the world's largest provider of Automatic Test Equipment (ATE) to the semiconductor industry. For seven decades, Advantest has led the way in developing new and innovative test and handling solutions for the global electronics industry. Advantest Test Solutions, Inc (ATS) is a subsidiary of Advantest America located in Lake Forest, CA and is a leading company at the forefront of the semiconductor industry, offering cutting-edge, massively parallel test infrastructure (IaaS) that serves customers worldwide. This role provides a unique opportunity for an engineer with a diverse skill set, offering challenging projects and rewarding outcomes.

ATS is looking for a highly skilled Principal Software Engineer to join our team in Lake Forest, CA. The ideal candidate will possess a deep technical background, focusing on hands-on software development and engineering high-performance software platforms.

Essential Duties & Responsibilities:

• Possess in-depth expertise in the .NET ecosystem and proficiency in cross-platform development.
• Proficiency in Apache Pulsar, Microsoft Azure, C++, C#, Python, SQL, NOSQL, and .NET ecosystem (Preferred xUnit, Fluent Assertions, Blazor, Playwright, Mocks, TDD).
• Specialize in cross-platform server and terminal development using OneImlx.Terminal framework across Windows, Linux, and macOS.
• Engineer complex, high-performance software platforms (PaaS) tailored for on-premises deployment.
• Develop, design, and maintain software for the semiconductor and technology customer base, primarily for control and communication with mechatronic subsystems.
• Lead the modernization journey, including upgrading legacy software components.
• Create robust cross-platform software infrastructure and systems, ensuring reliability and efficiency across diverse operating environments.
• Extensive knowledge of distributed messaging systems, network protocols, and data engineering.
• Actively code, design, document, and serve as a technical liaison for customers.
• Travel to domestic & international destinations (10% - 20%).
• Perform all other duties as assigned.