Onust

Client Profile

Onust is disrupting the automotive protection space, offering honest and affordable best in class automotive protection plans on a subscription basis. Unique to the Onust offering are no up-front inspections and zero deductibles, as well as potential lifetime coverage. Onust emphasizes member satisfaction and nurturing.

Onust was founded by an industry veteran with 30+ years of experience and a proven track record of building several successful businesses from the ground up.

T4Bi designed and developed a robust, resilient and scalable solution that addresses the needs of all Onust stakeholders.

The Challenge

To provide a highly resilient and scalable set of services to members and partners, while integrating with various third-party platforms. Also, to maintain a high level of ownership while maximizing value from third-party services and platforms.

Solution Highlights

T4Bi designed and developed a robust, resilient and scalable solution that addresses the needs of all Onust stakeholders. Members have full access to manage their subscriptions and access their membership services. Affinity Partners have access to manage their organizations, refer customers and monitor performance. Administrators have access to manage and monitor all activity within the system. Onust also provides integration points for third-party platforms, to support referral creation from those platforms.

The Onust system is also integrated with various third-party platforms to support underlying membership services such as claims administration and roadside assistance. Asynchronous integrations provide resiliency, allowing these platforms to be unavailable without impacting the availability of Onust.

Domain Driven Design lies at the foundation of the entire project. Event Storming played a key role in the development and evolution of the domain model. This foundation supported the design and development of a fully event-driven and event sourced architecture with an implementation that truly represents and aligns with the domain model.

Highlights of the solution are:

Progressive Web Application (PWA) for members
Self-Service Partner Portal
Administrative Portal
Domain Driven Design
Event Driven Architecture
Event Sourcing
Command Query Responsibility Segregation
Eventual Consistency
Cloud Native Implementation
Hosted on AWS
RESTful (Synchronous) Web Services
Asynchronous Web Services (Event Driven)

Technologies Used:

Java 11
Postgres 12
DynamoDB (AWS)
S3 (AWS)
Cognito (AWS)
SES (AWS)
SNS (AWS)
CodeCommit, CodeBuild, CodeDeploy, CodePipeline (AWS)
Elastic Beanstalk (AWS)
CloudWatch (AWS)
CloudFront (AWS)
Other, Foundational AWS Services
Prometheus
Grafana
Jasper Reports
Spring Framework
Typescript
Angular
Docker / Containers

Ready to Modernize?

Modern IT systems aren’t just about compliance — they’re about enabling agility, scalability, and cost efficiency. They’re also about making the right judgment calls: preserving and evolving what makes your business unique, while integrating or
standardizing what is simply a table-stake capability.

Every year, code maintenance costs average 25% of the original build. The opportunity cost of not modernizing is even higher. The real challenge is making architectural decisions that avoid over-engineering or platform lock-in — and ensure systems remain sustainable.