Backend Systems Integration Specialist

4 days ago


Bengaluru, India Photon Full time

Photon (https://www.Photon.Com) is a fast growing global technology company, leading the industry in Digital Transformation for Enterprise. Photon is known for creating amazing mobile-first digital customer experiences and designs; and delivers technical expertise across all levels of corporate infrastructure.Note: Work from Office (All 5 days)Backend Developer – Webhook & Preference SyncRole Summary This role focuses on implementing webhook ingestion, HMAC verification, publishing vendor callbacks to Pub/Sub, and supporting preference synchronization across Listrak, MDM, and internal systems. Key Responsibilities Build secure webhook receivers with signature validation and request authentication. Publish vendor delivery, engagement, and opt-out events into Pub/Sub topics. Archive raw webhook payloads to Cloud Storage for auditing. Implement preference synchronization logic for email/SMS consent updates. Integrate with internal preference, profile, and MDM services. Handle retries, DLQ, and graceful degradation during vendor outages. Required Skills & Experience 3–6 years backend engineering experience. Experience developing webhook-based integrations. Familiarity with Pub/Sub, schema-based payloads, and secure API patterns. Understanding of HTTP security concepts (HMAC, TLS, replay protection). Experience in e-commerce/retail domainPreferred Experience with preference/consent systems or ESP callback handling.



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