Photon
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
Originally posted on Himalayas
To apply for this job please visit himalayas.app.
Working in India
India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the most populous country in the world and, since its independence in 1947, the world's most populous democracy. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal and Bhutan to the north; Bangladesh and Myanmar to the east. In the Indian Ocean, India is near Sri Lanka and the Maldives. Its Andaman and Nicobar Islands share a maritime border with Myanmar, Th
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