PoolPay: Modernization and Scale on AWS

PoolPay is a São Paulo-based fintech offering a Payments as a Service platform for digital businesses. Integrated into the checkout of major companies, its solution enables connecting multiple payment providers and methods such as PIX, credit card, boleto, and more — with intelligent orchestration, anti-fraud systems, SPLIT, and recurring billing. PoolPay focuses on payment performance, security, and conversion for businesses and consumers that need reliable checkout and settlement flows.

Despite already operating on AWS, PoolPay faced barriers to scaling its infrastructure with security and predictability. With the company's accelerated growth and onboarding of new clients, challenges emerged such as:

• Limited Scalability: lack of a modular and standardized architecture.
• Cost Visibility: difficulty in breaking down expenses and planning accurately.
• Governance and Security: need to strengthen practices aligned with AWS guidelines, such as PCI-DSS.
• Low Automation: absence of modern CI/CD pipelines and infrastructure as code best practices.

The company needed a more robust and modern foundation to support future integrations, transactional growth, and continuous innovation without compromising security or performance.

Elevata, an AWS strategic partner specializing in startups and an Advanced Tier Partner, was chosen to lead this process. The journey began with Elevata Compass, our technical assessment offering that deeply evaluates the client's environment. Through Compass, we conducted a complete analysis of PoolPay's infrastructure, mapping points of attention, operational risks, and improvement opportunities in architecture, security, performance, governance, and cost areas.

The result was a detailed diagnosis, a customized modernization plan, and a prioritized backlog with practical recommendations aligned with AWS best practices. This process not only provided technical visibility into the current environment but also prepared decision-making for modernization work with greater agility and security.

With Compass insights in hand, we moved to execution with Elevata Accelerate, implementing a secure, scalable, and automated Landing Zone with Terraform. This new foundation included networking, policies, centralized monitoring, and security configurations prepared for PoolPay's future.

The new infrastructure enables:

• Environment segregation (e.g., production, staging, development).
• Secure expansion with a modular and adaptable foundation.
• Resource and cost optimization with modern IaC practices.
• Compliance with standards such as PCI-DSS.
• Use of containers (EKS) and databases (RDS) optimized to handle peaks and scale more effectively.
• Use of Helm charts for better control and versioning of applications.
• Build and deploy processes (CI/CD) for greater automation and minimizing production errors.