Japan Jobgether
This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Developer - in Japan. This role offers the chance to contribute to a fast-growing, innovative financial technology platform by designing, building, and optimizing backend services that power a global trading ecosystem. You will work on high-performance, secure, and scalable systems that support real-time trading, API services, and blockchain integrations. The position combines hands-on coding with architectural decision-making and cross-functional collaboration, allowing you to shape the infrastructure that drives user experiences worldwide. Ideal candidates have strong expertise, familiarity with microservices architecture, and experience maintaining high-availability systems. This is an environment that values innovation, autonomy, and operational excellence while providing opportunities for mentorship, growth, and impact on a global scale.

Accountabilities:

  • Develop and maintain backend components for trading applications, APIs, and blockchain integrations.
  • Implement new products, features, and enhancements using agile methodologies, ensuring high-quality user experiences.
  • Ensure scalability and performance of backend services to support growing user activity.
  • Build and maintain secure backend systems, adhering to best practices and high security standards.
  • Collaborate with frontend engineers, DevOps, and security teams to integrate and optimize services.
  • Troubleshoot and resolve complex technical issues, contributing to platform stability and reliability.
  • Participate in architectural decisions and contribute to long-term backend strategy.
  • Requirements:
  • Strong proficiency in and JavaScript development.
  • Experience with microservices architecture and backend system design.
  • Solid understanding of database interactions (MySQL, MongoDB) and data management.
  • Familiarity with high-availability concepts and scalable system design.
  • Knowledge of security practices for backend systems.
  • Ability to learn new technologies quickly and adapt to a fast-paced environment.
  • Bonus skills: blockchain integration, Ruby, Rust, C++, message queues (Redis), caches, and job queues.
  • Benefits:
  • Flexible remote-friendly work culture and autonomy.
  • Competitive compensation and career growth opportunities.
  • Mentorship, learning, and knowledge-sharing environment.
  • Supportive team and collaborative culture.
  • Opportunities for team-building activities, both online and in-person.
  • Direct impact on global technology and financial innovation.
Why Apply Through Jobgether? We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best  Why Apply Through Jobgether? 
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

#LI-CL1 We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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