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English only! Full Stack Developer @leading financial group
| Hiring Company | Randstad K.K. Digital |
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 6.5 million yen ~ 9 million yen |
Work Style
Remote Work and WFH Minimal OvertimeJob Description
■ Role description:
We are seeking an experienced Full Stack Developer to join on a 6-month contract basis. The ideal candidate will have strong expertise in building high-performance, resilient financial trading systems using a modern technology stack.
■ Key Responsibilities
・Design and develop scalable microservices architecture using Python FastAPI
・Create responsive and intuitive user interfaces using React
・Implement high-performance data processing systems with emphasis on consistency and reliability Develop and maintain market data connectivity solutions
・Apply best practices in software architecture and design patterns
・Ensure code quality through SOLID principles and modern development practices
General Requirements
| Minimum Experience Level | Over 6 years |
| Career Level | Mid Career |
| Minimum English Level | Fluent |
| Minimum Japanese Level | None |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Required Skills
■ Skills, experience, qualifications and knowledge required:
● Strong proficiency in Python, with specific experience in FastAPI framework
● Expertise in REST API design and microservices architecture
● Advanced React.js development skills, including UI/UX design and wireframing
● Experience with high-performance computing and parallel processing
● Proven track record implementing caching solutions and message queues (Redis)
● Experience with market data integration (Bloomberg, Reuters)
● Strong understanding of data consistency and resilience patterns
■Desired Skills:
● Experience with kdb+/q
● Knowledge of trading systems and financial markets
● Understanding of reconciliation, hedging concepts and algorithmic trading fundamentals
● Experience working with C#/.NET, or similar OO language
■ Technical Requirements:
● Implementation of modular, loosely coupled architectures
● Experience with high-performance computing and optimization
● Strong understanding of distributed systems
● Expertise in data consistency patterns and resilient system design
■Qualifications:
● Bachelor’s degree in Computer Science, Software Engineering, or related field
● Minimum 5 years of relevant software development experience
● Proven track record in financial technology development
● Strong problem-solving and analytical skills
● Excellent communication skills in English
Job Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 6.5 million yen ~ 9 million yen |
| Industry | IT Consulting |
Job Category
- IT, Web and Communication > Software Developer
- IT, Web and Communication > Database Engineer, Architect
- IT, Web and Communication > Web Developer
Company Details
| Company Type | Large Company (more than 300 employees) - International Company |
| Non-Japanese Ratio | Majority Non-Japanese |
