Flywire Improves Speed to Deployment by 60% Using Amazon ECS with AWS Fargate

Founded in 2011, Flywire originated from one student’s vision to simplify his tuition payments while studying abroad. Since then, the company’s mission has evolved into delivering some of the world’s most important and complex payments to its clients across multiple industries, underpinned by the company's proprietary global payment network, next-gen payments platform, and industry-specific software. The company has experienced year-over-year growth and serves more than 3,700 global clients with diverse payment methods in more than 140 currencies across 240 countries and territories around the world.

As Flywire expanded, it migrated to AWS, seeking increased scalability, security, and efficiency. Following its initial migration, Flywire wanted to free its teams from self-managing its AWS resources. “We aim to make our products more resilient and to improve the lives of our engineers,” says José Luis Salas, head of site reliability engineering at Flywire. “Instead of patching servers, we wanted to focus on supporting the business.”

In 2018, Flywire migrated its workloads to Amazon Elastic Container Service (Amazon ECS), which runs highly secure, reliable, and scalable containers. To further boost engineering productivity, Flywire decided to run Amazon ECS with AWS Fargate, a serverless, pay-as-you-go compute engine that gives Flywire’s teams the ability to focus on building applications without managing servers. By running its containers on AWS Fargate, Flywire has saved its teams up to 40 percent of their time on manual security patches. “Amazon ECS with AWS Fargate has been the perfect combination for us,” says Salas. “AWS Fargate integrates well with other AWS services with almost zero maintenance.”

As Flywire rearchitected its environment, cloud security was its top priority. Flywire must comply with SOC 2, HIPAA, ISO, and other industry standards. Flywire bolstered its security posture by adopting AWS Security Hub, which automates AWS security checks and centralizes security alerts, and Amazon GuardDuty, which protects Flywire’s AWS accounts with intelligent threat detection. As the company spun up more than 700 clusters on Amazon ECS, its site reliability engineering team benefited from fully managed services. “There’s zero additional maintenance for that team,” says Salas. Additionally, the team achieved 70 percent cost savings by running its development environment on AWS Fargate Spot, which can run fault-tolerant Amazon ECS tasks at up to a 70 percent discount off Amazon EC2 On-Demand Pricing.

Throughout the project, Flywire worked alongside a complete account team within AWS as well as AWS Enterprise Support, which provides a suite of resources to help organizations scale, optimize costs, and accelerate value from their cloud investment. Together, the teams focused on architecting an environment that would support operational excellence and efficiency. To avoid misconfigurations, Flywire has set up development, testing, and production environments using AWS Fargate. “The ability to automatically scale on Amazon ECS has meant that we can rely on a cloud security team of three people,” says Salas. By designing its architecture with three separate environments, Flywire’s engineers can rapidly test out new ideas by spinning up resources under a self-service model that has preset controls and guardrails.

After experiencing the benefits of going serverless, Flywire enrolled in the private preview for the Seekable OCI (SOCI) feature, a technology open sourced by AWS that helps containers launch faster by lazily loading the container image. “We want to be early adopters of AWS technology,” says Salas. “By participating in beta tests and private previews, we’re able to contribute feedback during the development of features and solutions.”

With this feature, the Flywire team saw an immediate improvement in startup times, helping its engineers innovate and release features quickly. “Using SOCI with AWS Fargate was amazing and saved us a lot of time,” says Salas. “Our pipelines run 60 percent faster than before.”