Bilingual Senior Software Engineer – C#

Position: Full-time, permanent

Experience: 8–12 years

About the Role

We are seeking an experienced software engineer with a strong background in desktop application development. In this on-site role, you will understand customer requirements and work with on-site and global team members to develop desktop applications for semiconductor inspection equipment.

Responsibilities

• Develop C# applications and port legacy software to C#.
• Design software functionality at a high level.
• Work with customers on the design and development of software for semiconductor inspection equipment.
• Coordinate with offshore teams to meet requirements and deliver software on schedule and to quality standards.
• Drive the development process from requirements gathering through delivery.
• Clarify technical inquiries from offshore teams in consultation with the client.
• Review offshore deliverables for quality and completeness.
• Perform unit testing, support bug fixes, verify software on the device, and analyze and resolve issues.

Team and Industry

This account already has long-term on-site team members from Quest Global.

Semiconductor inspection equipment plays an important role in the quality of products such as smartphones, electric vehicles, AI systems, and medical devices. The work may involve technologies such as electron beams, optical inspection, and high-performance computing.

Why Work with Us?

• Work with leading Japanese semiconductor equipment manufacturers.
• Contribute to projects involving AI-based defect detection, precision imaging, micro-pattern inspection, and distributed computing.
• Collaborate across on-site teams in Japan and offshore teams in India.
• Access ongoing learning, certification, and cross-disciplinary opportunities.
• Develop toward roles such as Senior Architect and Principal Architect, or explore opportunities in sales, delivery, and leadership.

Location and Access

• Hitachinaka City, Ibaraki Prefecture, Japan. Relocation expenses will be subsidized if relocation is required upon joining.
• About 20 minutes by taxi from Katsuta Station; a free shuttle bus is available.
• Employee parking is available.

Requirements

Required:

• Experience developing desktop applications using C#.
• Expertise in porting existing software applications to C#.
• Experience creating software functional designs.
• Practical experience with design patterns and SOLID principles.
• Strong communication and teamwork skills.
• Strong Japanese communication skills.
• At least 8 years of relevant work experience.

Preferred:

• Experience in the semiconductor field.
• Experience developing desktop applications using WPF, XAML, and MVVM.
• Experience developing desktop applications using VC++ and MFC.

Language skills: Business-level English and Japanese proficiency at JLPT N2 or higher.

Compensation and Benefits

• Annual salary, paid monthly in 12 installments.
• Annual salary increases. Contract employees receive a salary review when their contract is renewed.
• Commuting allowance of up to ¥20,000 per month.
• Overtime pay.
• Comprehensive social insurance, including employees’ pension, health insurance, employment insurance, and workers’ accident compensation insurance.
• Health checkups, including checkups for dependents, comprehensive medical checkups, and gynecological examinations.
• Mandatory retirement age of 65; no mandatory retirement age for managerial positions.
• Online in-house training program.
• Three-month trial period, with no changes to duties or benefits.
• No smoking indoors.

Holidays and Leave

• More than 120 days of annual leave.
• Two-day weekends (Saturday and Sunday).
• Year-end and New Year holidays.
• Paid leave, maternity leave, childcare leave, nursing care leave, and mourning leave.

Holidays and leave may vary depending on the client site. Annual leave and other benefits are generally generous at the major manufacturers where the work is based.