• 320 Bay Street, 101 Toronto ON M5H 4A6 Canada
  • info@metamartech.com
Serverless Buy Now Pay Later Platform - MetaMarTech

Serverless Buy Now Pay Later Platform

Cloud-Native Microservices Architecture for Fintech BNPL with Real-Time Credit Scoring

Serverless Architecture Microservices Real-Time Credit Scoring PCI DSS Compliance

At MetaMarTech, we provide innovative digital solutions that drive performance, scalability, and business growth. Whether it's optimizing website speed, implementing advanced cloud technologies, or rethinking infrastructure, we work with businesses to overcome complex challenges and unlock new opportunities.

Case Study

Serverless Buy Now Pay Later Platform Architecture

Industry: Fintech & Payment Services
Duration: 7 Months
Team Size: 18 Engineers
Region: Global Multi-Region

The Challenge

A fintech startup needed to build a Buy Now, Pay Later platform from the ground up using cloud-native technologies. The platform required secure customer authentication, real-time credit scoring, seamless merchant integrations, and the ability to scale rapidly to support ambitious growth projections. The solution needed to comply with PCI DSS standards and financial regulations while maintaining low latency for credit decisions and payment processing.

<2 sec Credit Decision Time
100K+ Expected Daily Transactions
PCI DSS Compliance Required
Zero Existing Infrastructure

Step-by-Step Approach for Understanding the Client's Needs

Our systematic 5-step approach to design and implement serverless BNPL platform architecture

1

Understanding Business Objectives and Requirements

Ask About Their Primary Business Objectives for Launching This BNPL Service

Begin by understanding the core business drivers for the BNPL platform. Are they aiming for financial inclusion, offering alternative payment methods, or targeting specific customer segments (e.g., younger demographics, underbanked users)?

Explore Their Target Customer Demographics and Expected Transaction Volumes

Inquire about the target customer base (e.g., age group, income level, geographies). What are the expected transaction volumes in the first year, and what is the growth trajectory? This will inform scalability and capacity planning for the platform.

Investigate Their Compliance Requirements, Including PCI Standards and Financial Regulations

Discuss the compliance landscape for the BNPL platform. Are they required to meet Payment Card Industry Data Security Standards (PCI DSS)? What other financial regulations or industry standards do they need to adhere to, such as GDPR, AML, or KYC?

Understand Their Credit Scoring Requirements and Third-Party Integrations Needed

Clarify the credit scoring process. Will they use third-party credit bureaus or have an in-house model? What external APIs or services (e.g., credit score providers, fraud detection services) will they need to integrate into the platform?

2

Technical Solution Design and Microservices Architecture

Analyze Their BNPL Plan Structures and Business Logic Requirements

Get clarity on the business logic of their BNPL product. What are the payment plans? How do they determine loan amounts, repayment schedules, and interest rates? This will help define the microservices architecture and workflow orchestration.

Review Their API Requirements for Merchant Partner Integrations

Discuss the API requirements for integrating with merchant partners. What kind of data will be exchanged (e.g., transaction details, payment status)? Will they require API rate limiting, authentication, or secure connections?

Assess Their Data Storage Requirements and Audit Trail Needs

Evaluate the data storage needs. What data will be stored (e.g., customer details, transaction history, credit scores)? Is there a need for audit trails or historical data storage to meet regulatory or operational needs?

Determine Their Performance Expectations and Uptime Requirements

Inquire about their performance expectations. What latency requirements do they have for user-facing processes like credit checks or payment transactions? What uptime or availability SLAs are they aiming for?

3

AWS Solution Architecture

Explain How Amazon Cognito Provides Secure Customer Authentication and Self-Service Registration

Describe how Amazon Cognito can be used to provide secure user authentication and self-service registration. Cognito's multi-factor authentication (MFA), user pools, and identity pools will support strong identity management while complying with industry regulations.

Describe How API Gateway Enables Secure and Scalable Merchant Integrations

Explain how Amazon API Gateway can handle merchant API integrations securely. Discuss the ability to scale the platform dynamically based on demand, secure access controls, and rate limiting for handling varying transaction loads.

Detail How AWS Lambda Supports Microservices Architecture for BNPL Processing

Illustrate how AWS Lambda enables a serverless microservices architecture by allowing each microservice to scale independently. Lambda functions can process individual components like credit scoring, payment processing, or order management without the need to provision or manage servers.

Demonstrate How DynamoDB Handles Customer Data and Credit Information Storage

Show how Amazon DynamoDB will be used to store customer data, transaction records, and credit information. Its scalability, low-latency reads, and pay-per-request pricing will ensure high performance during traffic spikes.

4

Compliance, Security, and Operational Support

Explain Compliance Features Available Across AWS Services for Financial Regulations

Review how AWS services comply with financial regulations and data security requirements. Highlight the encryption capabilities for data at-rest and in-transit, as well as how AWS services support PCI DSS, GDPR, and KYC compliance.

Assess Their Team's AWS Knowledge and Determine Comprehensive Training Requirements

Discuss the AWS knowledge of their technical team. Will they need training on AWS services like Lambda, API Gateway, and Cognito? Consider options like AWS Training and Certification programs or hands-on workshops.

Discuss Ongoing Operational Support and Architecture Review Options

Propose ongoing operational support post-launch. This includes monitoring the architecture using Amazon CloudWatch, cost management, security auditing, and performance tuning for continuous optimization.

5

Next Steps and Execution Planning

Thank the Attendees for Their Time and Confirm Meeting Objectives

Conclude the meeting by thanking the stakeholders for their time. Recap the key objectives of the discussion, including the architectural vision, compliance, and scalability considerations.

Assess Their Budget Constraints and Timeline Expectations for MVP Launch

Inquire about the budget and timeline for the platform's MVP launch. Discuss phased implementation and what aspects of the solution are critical for the initial release.

Outline Next Steps for Proof-of-Concept and Implementation

Summarize the key requirements, including serverless architecture, real-time credit scoring, merchant integrations, and compliance needs. Outline the next steps, such as proof-of-concept development, technical workshops, or a formal project proposal.

Resilient Cloud Infrastructure with Zero Downtime

High Availability

Achieved 99.99% uptime with multi-AZ deployment and auto-scaling, eliminating downtime during peak periods.

99.99% Uptime
🔒
Regulatory Compliance

Met all SOX, PCI DSS, and GDPR requirements with automated compliance monitoring and audit trails.

100% Compliant
🛡️
Disaster Recovery

Implemented automated backup and disaster recovery with RTO of 1 hour and RPO of 15 minutes.

1hr RTO
💰
Cost Optimization

Reduced infrastructure costs by 40% through right-sizing, reserved instances, and automated scaling.

40% Savings
99.99% Availability
1hr RTO
15min RPO
40% Cost Savings

Technologies Used

EC2 Auto Scaling
Application Load Balancer
Amazon RDS
AWS Backup
CloudWatch
AWS CloudTrail

Why Choose MetaMarTech?

🏛️

Financial Services Expertise

We specialize in cloud migrations for regulated industries, particularly in financial services. Our team understands the unique compliance and security requirements of banking applications.

🛡️

Fault-Tolerant Architecture

We design and implement highly available, fault-tolerant architectures that ensure business continuity and minimize downtime.

🔒

Compliance & Security

Our solutions are built with compliance and security at the core, ensuring adherence to SOX, PCI DSS, GDPR, and other regulatory requirements.

Secure Your Cloud Migration Journey

By leveraging AWS Cloud and its services such as EC2 Auto Scaling, Application Load Balancer, AWS Backup, and Amazon RDS, we can create a resilient, compliant, and scalable cloud architecture for your loan processing system. We will guide you through every step of the cloud adoption journey.

Contact Us Today

info@metamartech.com