The fintech industry in Southeast Asia is rapidly evolving, and companies must adopt modern solutions to keep pace. To stay competitive, enterprises need not only custom fintech platforms but also a cloud native fintech architecture that ensures scalability, security, and compliance with global standards.
This case study highlights how SotaTek partnered with a fast-growing fintech enterprise with over 5.9 million users and $400M GMV, delivering a platform that combines innovation with compliance.
How to scale with a cloud native fintech architecture?
Our client - a fintech leader with more than 500 employees - needed to scale product development fast without compromising security. They wanted a strategic technology partner who could deliver a future-ready cloud native fintech architecture while ensuring seamless integration with existing systems.
Readmore: See the full case study Scaling a Fintech Platform with Custom Software here.
The Solution
SotaTek developed a custom fintech platform built on a robust and modular cloud-native fintech architecture. The solution ensured both scalability and compliance, featuring:
- PCI/DSS - compliant card processing system with advanced security.
- ISO 8583 - compliant terminal system for frictionless transactions.
- Multi-processor payment gateway supporting cards, wallets, and loyalty programs.
- Merchant portal to empower dealers and partners with streamlined business management.
- Omnichannel payment infrastructure (mobile, web, API) that allowed rapid partner integrations.
- Upgraded POS system components for seamless retail operations.
Technology stack enabling cloud native fintech architecture
The cloud native fintech architecture leveraged best-in-class technologies to enable high performance and long-term adaptability:
- Frontend: ReactJS
- Backend: NestJS, MongoDB, PostgreSQL
- Data & Analytics: AWS Redshift, Holistics
- DevOps & Infrastructure: Kubernetes, AWS Lambda, GitLab CI, Serverless
- Messaging: Kafka
Key Results
By partnering with SotaTek, the client successfully accelerated their digital transformation and achieved significant business outcomes:
- Accelerated Product Development: Faster rollout of new features and services to match growth targets.
- Robust & Compliant Payment Infrastructure: PCI/DSS-aligned and ISO 8583-compliant, ensuring regulatory compliance.
- Improved Partner & Merchant Enablement: Merchant portal and API-ready systems streamlined operations and integrations.
- Enhanced Platform Scalability: Supported millions of users and high transaction volumes without compromising stability.
- Future-Ready Cloud native fintech architecture: Modular infrastructure powered by Kubernetes and AWS services for long-term adaptability.
Conclusion
This project demonstrates how a cloud-native fintech architecture can drive digital transformation in the financial sector. By combining scalability, compliance, and innovation, SotaTek helped the client reinforce its leadership in Southeast Asia’s fintech landscape.
Looking to build a scalable fintech platform with modern technologies? Contact SotaTek today to explore tailored solutions for your business.
https://www.sotatek.com/ 
(+84)2466585248 
