Backend Developer – Webhook & Preference Sync (Offshore)

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.