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Backend Developer – Webhook & Preference Sync (Offshore)

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Backend Developer – Webhook & Preference Sync (Offshore)

Role Type: Full-Time | Offshore [Chennai]

Role 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

  • 3–5 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).

Preferred

  • Experience with preference/consent systems or ESP callback handling.

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