✍️ Open Banking Microservices Architecture on AWS

🚀 Introduction

Modern Open Banking platforms are built using microservices.

Each banking capability becomes an independent service that can be developed, deployed, and scaled separately.

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Core Services

Account Information Services

Handles:

• Customer profiles
• Deposits
• Transactions
• Account balances

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Payment Services

Handles:

• Domestic payments
• Standing orders
• Scheduled payments

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Consent Services

Handles:

• Customer approvals
• Data sharing permissions
• Regulatory compliance

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🌍 Real Banking Scenario

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☁️ AWS Services

Compute

• AWS Lambda
• Amazon ECS
• Amazon EKS

Databases

• Amazon RDS
• Amazon Aurora
• DynamoDB

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🔒 Security Best Practices

✅ Service-to-service authentication

✅ Least privilege IAM policies

✅ Encrypted databases

✅ Private VPC communication

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🎯 Conclusion

Microservices increase scalability, resilience, and deployment speed for banking platforms.

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