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Job ID : 1569476 Date Updated : December 19th, 2025
English Only - Senior C# Developer

Senior C# Developer

Location Tokyo - 23 Wards
Job Type Temporary
Salary 7 million yen ~ 10 million yen

Job Description

Join our IT group as a Senior C# Developer. You'll play a key role in our IT transformation initiative, driving developer experience and productivity to the next level.

Client Details

Our client is a leading financial services firm undergoing a major IT transformation. The IT group is part of a global team responsible for providing business solutions, support, and ensuring stability for the organization.

Description

  • Analyze and develop standalone .NET components.
  • Design, develop, and unit-test deliverables as per exit criteria.
  • Ensure delivery through various environments and production as required.
  • Perform bug fixing and application support.
  • Review development work for quality and efficiency.
  • Adopt best practices for software development.
  • Document tasks performed.
  • Communicate with regional stakeholders.
  • Re-engineer current monolithic applications onto cloud-ready micro-services.

Job Offer

  • Opportunity to work on hands-on development of business application software.
  • Become a subject matter expert in middle and back-office processing systems, especially OTC derivatives.
  • Leverage various DevOps toolsets.
  • Work in a dynamic and innovative environment.

To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.

General Requirements

Minimum Experience Level No experience
Career Level Mid Career
Minimum English Level Business Level
Minimum Japanese Level None
Minimum Education Level Bachelor's Degree
Visa Status Permission to work in Japan required

Required Skills

  • 7 to 10 years of experience in software development.
  • Proficiency in .NET Core, ASP.NET Core Web API, C#, SQL Server, Python, and containerization/Dockers.
  • Good understanding of OOP concepts.
  • Ability to collaborate with cross-functional and cross-regional teams.
  • Strong ownership and ability to independently design and execute solutions.
  • Client-centric mindset, balancing stakeholder expectations and future scalability.
  • Preferable: Knowledge of design patterns, exposure to React, experience working in Agile Scrum, and familiarity with microservices and Java.

Job Location

  • Tokyo - 23 Wards

Work Conditions

Job Type Temporary
Salary 7 million yen ~ 10 million yen
Work Hours 8:40~17:40
Industry Bank, Trust Bank

Job Category