About this role
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 handling and event publishing.
- Implement resilience features: circuit breakers, exponential backoff, and message-level deduplication.
- Participate in code reviews, performance tuning, and operational troubleshooting.
Required Skills & Experience
- 6–10 years backend engineering experience.
- Strong expertise with Java, Spring Boot, REST APIs, and microservices.
- Experience with event-driven platforms (Pub/Sub, Kafka, RabbitMQ, etc.).
- Familiarity with Avro or schema-based messaging formats.
- Experience with Kubernetes/GKE deployments.
- Strong integration experience with external APIs.
Preferred
- Experience in messaging platforms, ESP integrations, or customer engagement systems.
- Knowledge of webhook design and security
Other facts
About Photon
Photon, a global leader in AI and digital solutions, helps clients accelerate AI adoption and embrace DigitalHyper-expansion® to ‘make tomorrow happen today’. We work with 40% of the Fortune 100, enabling them to stay agile and future-ready in an era of converging digital and AI boundaries. Powering billions of touchpoints a day, Photon combines AI management, digital innovation, product design thinking, and engineering excellence to drive lasting transformation for F500 clients. We employ several thousand people across dozens of countries. Learn more at www.photon.com
What you'll do
- The Senior Backend Developer will implement backend services for the Notification Hub, focusing on routing logic and webhook ingestion components. Responsibilities include developing microservices, processing Avro payloads, and integrating with internal and external APIs.
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