Senior Software Engineer | Scala, Kotlin, Java | AI/LLM Integration

Contributing to Thrives Kotlin monorepo and React microfrontend platform, building features that deliver personalized behavior-change experiences to users across Slack, web, and mobile surfaces. Designed and implemented backend services in Kotlin (Ktor, Koin, GraphQL) powering personalized microstep recommendations, reminders, and check-ins. Integrated AI/LLM-powered flows to personalize user content and improve engagement. Built and evolved GraphQL Federated APIs using Expedias Kotlin GraphQL extensions, backed by PostgreSQL with Flyway migrations. Delivered user-facing features across the React/TypeScript microfrontend stack. Rolled out new features behind ConfigCat feature flags and enforced access through scope-based RBAC. Operated production services with Datadog-based monitoring, tracing, and alerting. Mentored engineers on Kotlin idioms, coroutines, testing practices, and API design.

Independent contractor on backend and data engineering engagements alongside full-time work. Delivered a 6-month contract for Everylife Technologies (London, UK), delivering new features end-to-end across the AngularJS frontend and Xitrum/Scala backend of a care-management platform.

Staff engineer in the data platform team, leading the exposure of a Hadoop data lake storing all incident and ticketing information for the Santander Group through a unified API layer. Defined architectures for multiple big data use cases across new teams. Built reusable tooling and libraries adopted across the organization. Implemented core data pipelines and API services, and mentored existing teams on Scala, Spark, and streaming best practices.