Technical Leader/ Technical Architect (.NET, Japanese N4+)

We are looking for a Technical Leader with strong Fullstack .NET development experience to lead technical execution and support project delivery for Japanese clients. This role focuses mainly on Backend development (70%) while also contributing to Frontend development (30%), system architecture, CI/CD design, and technical mentoring for the development team.

Lead and support the development team in designing and implementing high-quality software solutions. Design, develop, and maintain Fullstack applications using .NET technologies and modern Frontend frameworks. Focus primarily on Backend architecture, API development, system integration, and performance optimization. Contribute to Frontend development and UI implementation when required. Design and maintain CI/CD pipelines to improve deployment efficiency and system reliability. Review source code, technical designs, and deliverables to ensure coding standards and best practices. Collaborate with PL/ PM, and stakeholders to clarify

requirements:and provide technical solutions. Support troubleshooting, issue analysis, and technical risk management throughout the project lifecycle. Mentor and guide team members in technical skills and development best practices. Participate in technical discussions and continuous improvement initiatives. Perform other tasks assigned by Manager.

Bachelor's degree in Computer Science, Information Technology, or a related field.

Minimum 7+ years of experience in software development, including at least 3 years as a Technical Leader role.

Strong experience in Fullstack .NET development: Backend (~70%): ASP.NET Core / .NET Framework / Web API RESTful API design Database design & optimization (SQL Server, PostgreSQL, etc.) Frontend (~30%): JavaScript / TypeScript Modern frameworks such as React, Vue.js, or Angular Strong Backend mindset with experience in system architecture and scalable application design.

Experience designing and maintaining CI/CD pipelines and deployment workflows.

Familiarity with Cloud platforms (AWS/Azure) is a plus.

Experience with Agile/Scrum development processes.

Basic in Japanese (N4+ level or equivalent).

Strong problem-solving, leadership, and communication skills.

Full social package (SI, HI, UI) & Premium healthcare insurance Free Japanese class; 1:1 class with native teachers Onsite opportunities: short-term and long-term assignments in Japan, and APAC.

Udemy account provided & Sponsor examination fee for technical certificates such as AWS, Azure, PMP, etc.

Sports clubs provided (100% sponsored by the company): Football, Badminton Special allowance for foreign language certificate (up to 500USD/month) Up to 19 days of paid leave Annual Health check at the top healthcare center Working time: Mon-Fri, Hybrid working mode 13th Month Salary + Year-End Reward (a half month) + Excellent Bonus Reward Most Valuable Player (MVP) for individual & team twice a year Exciting activities: Company Trip, Xmas & Year-End Party, Sports Day, Outing Trip, etc.

Professional environment with clear procedures and well-working facilities