FanDuel | Our Experience

FanDuel partnered with us to deliver a modernisation-led AWS migration focused on improving the reliability, security, and auditability of its configuration management approach.

Operating within a regulated, high-availability environment, FanDuel required a more robust and decoupled solution that would reduce operational risk while supporting consistent, scalable service delivery.

By introducing an AWS-aligned, containerised configuration management capability, we helped establish a controlled and production-ready foundation that lowers delivery complexity, strengthens compliance, and supports long-term platform evolution.

About the customer

FanDuel is a leading online sports betting and gaming operator, delivering highly available digital services in a regulated environment. Operating at scale and under regulatory scrutiny, FanDuel requires secure, reliable platforms that enable rapid delivery while maintaining operational stability and compliance.

Customer challenge

FanDuel needed to reduce the complexity of its configuration management and delivery processes, which had become a significant burden on development teams. Configuration was tightly coupled to legacy tooling, increasing cognitive load for engineers and slowing down delivery of new functionality.

This complexity had also contributed to configuration-related outages, creating operational risk for a platform operating in a regulated environment. FanDuel required a more robust, auditable, and decoupled approach that would reduce delivery risk while improving security and consistency.

Without modernising this part of the platform, FanDuel risked continued delivery friction, operational instability, and increased regulatory scrutiny resulting from avoidable service disruption.

Partner solution

AWS migration & modernisation delivery

We partnered with FanDuel to design and deliver a modernised, AWS-based approach to configuration management and service delivery, aligned to AWS best practices and production requirements.

Migration strategy

We worked with FanDuel to define a modernisation-led migration strategy focused on reducing delivery complexity and decoupling configuration from legacy tooling. Rather than lifting existing patterns directly into AWS, the solution introduced a new, containerised application to manage configuration publishing and consumption in a more controlled and auditable way.

This approach enabled FanDuel to modernise incrementally while maintaining confidence in production behaviour and minimising risk during transition.

Migration and modernisation execution

A new containerised application was developed to manage configuration publishing to Vault and retrieval by application services. Configuration was migrated out of legacy tooling and into application repositories, allowing teams to manage configuration alongside code using familiar development workflows.

To manage risk, both the legacy configuration approach and the new AWS-based approach were deployed in parallel. Configuration outputs were compared side by side, enabling teams to validate behaviour before cutting over production services to the new mechanism.

The first service using the modernised approach went live in production in March 2025. Development ran from August 2024 to February 2025, with migration handover and off-boarding completed by the end of March 2025.

Operational readiness and support

We provided architecture and design, hands-on delivery of the modernised solution, and full documentation of the migration approach to support handover. Ongoing operational support was subsequently delivered as part of FanDuel’s Cloud Platform Engineering (CPE) DevOps team through a separate engagement following completion of the initial delivery.

All components were designed and implemented in line with AWS best practices, with security, observability, and auditability built into the solution from the outset.

AWS services used

Amazon EC2 – hosting application and platform workloads
AWS Lambda – event-driven processing and automation
Amazon SQS – decoupled messaging between services
Amazon SNS – event and notification distribution
Amazon S3 – secure storage for configuration artifacts
AWS Identity and Access Management (IAM) – access control and least-privilege security
Amazon CloudWatch – monitoring, logging, and alerting
AWS CloudTrail – audit logging and change tracking

Results and business outcomes

The modernised AWS-based approach reduced configuration complexity and decoupled delivery from legacy tooling, significantly lowering the operational and cognitive burden on development teams. The new solution improved delivery confidence by enabling parallel validation before cutover and reduced the risk of configuration-related outages.

While formal quantitative metrics have not been published, the work improved platform stability, strengthened security and auditability, and provided a scalable foundation for future service delivery improvements on AWS. The solution directly addressed regulatory and operational concerns by improving control, visibility, and consistency across environments.

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