Senior Backend Developer/Lead – Notification Hub (Onsite) | US

Photon • United States, United States • Posted July 02, 2026

About the Role

Role Type: Full-Time | 
Role Summary 
The Senior Backend Developer will implement backend services powering the Notification Hub, including routing logic, preference synchronization workflows, webhook ingestion components, and vendor adapter integrations. This role focuses on building highly reliable, event-driven microservices deployed on GKE using Pub/Sub and Avro. 
Key Responsibilities 
Develop Java/Spring Boot microservices for routing, preference sync, webhook ingestion, and batch jobs. 
Implement Pub/Sub consumers with concurrency controls, retry logic, DLQ, and idempotency handling. 
Process Avro payloads and implement schema validation, transformation, and enrichment. 
Build API integrations with Listrak and other messaging/MarTech systems using the adapter pattern. 
Integrate with internal APIs (MDM, CRM, profile services) for data enrichment. 
Contribute to secure webhook handlin...
        