FinTech

Modernizing a Trading System: 70% Cost Savings Through AWS Cloud Migration

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70% Cost Reduction

65% Incident Reduction

50% Faster Delivery

Summary

A Tokyo-based FinTech company running a real-time trading application partnered with Aokumo to migrate their infrastructure to the AWS Cloud. The goal: improve performance, scalability, and compliance while dramatically reducing operational costs and risks.

Aokumo successfully re-architected and migrated their trading systems, enabling the company to benefit from cloud-native agility, high availability, and performance.

These changes empowered the client to scale securely, release faster, and deliver a better trading experience for tens of thousands of active users.

The Challenge

The client’s legacy infrastructure was struggling to meet the demands of its growing user base and real-time trading workload. Key issues included:

  • Performance Bottlenecks: Latency during peak trading hours impacted user experience and posed compliance risks.
  • Delayed Feature Rollouts: Bug fixes and new features faced long release cycles, slowing innovation.
  • Security and Compliance Gaps: Legacy systems lacked the agility to enforce security policies and respond to threats rapidly.
  • Limited Scalability and Resilience: The existing architecture couldn’t support the increasing transaction volume and lacked automated recovery mechanisms.
Aokumo’s cloud migration unlocked speed, savings, and reliability. We can now scale with confidence and innovate without roadblocks.

The Aokumo Solution

Aokumo conducted a cloud migration and modernization initiative using AWS best practices and managed services.

  • Cloud Architecture Assessment: Ran a digital fluency workshop to evaluate existing infrastructure and align architecture changes to business priorities.
  • Security & Compliance by Design: Used the AWS Well-Architected Framework to build secure-by-default environments with automated compliance monitoring and remediation.
  • Distributed Cloud Architecture: Implemented smart load balancing, automated backup, and disaster recovery to ensure high availability and performance.
  • Containerization & Orchestration: Delivered managed container services for faster, more secure deployments.

The AWS migration and re-platforming led to substantial improvements across key metrics:

The Results

The AWS migration and re-platforming led to substantial improvements across key metrics:

  • 70% Infrastructure Cost Reduction: Pay-as-you-go billing and autoscaling cut operational costs significantly.
  • 65% Bug and Incident Reduction: DevOps automation and monitoring reduced issue frequency and improved reliability.
  • 50% Faster Feature Delivery: Streamlined CI/CD pipelines and scalability cut manual deployment time in half.
  • 15X Faster Time to Recovery: Automated disaster recovery enabled near-instant response to incidents.

Conclusion

Aokumo’s AWS migration strategy transformed the client’s legacy infrastructure into a cloud-native, secure, and high-performing platform optimized for financial services.

With 70% cost savings, 15X faster recovery, and a modernized deployment pipeline, the client now operates with increased agility, security, and compliance, positioning it for long-term growth in the competitive FinTech space.

This case study illustrates how strategic cloud migration can unlock cost-efficiency, performance, and innovation. Aokumo continues to help FinTech companies scale with confidence using cloud-native best practices.

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