Cloud Engineer (GCP) Job at Openkyber, Illinois

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  • Openkyber
  • Illinois

Job Description

Lead Backend Engineer Notification Hub (Onsite):
Location: Onsite (Springfield, MO / Dallas, TX)
Role Type: C2C or W2

Note: Need only very senior resource who has stronger Coding skills. Preferred work location- Springfield, MO

Role Summary (JD Should match 100%)
Our Client is modernizing its customer messaging ecosystem through a centralized Notification Hub built on Google Cloud Platform (Google Cloud Platform). The Lead Backend Engineer will drive the architecture and development of this platform, overseeing GKE-based microservices, Pub/Sub event workflows, Avro schema governance, secure webhook processing, vendor integrations, and preference synchronization. This role sets the technical direction and ensures platform scalability, resilience, and extensibility.

Key Responsibilities

  • Lead design and development of Notification Hub services: Notification Router, Webhook Receiver, Preference Sync, and related components.
  • Architect and maintain event-driven pipelines using Google Pub/Sub with concurrency, retry/DLQ, idempotency, and backpressure handling.
  • Define and govern Avro schemas for all event types (order, cart, preference, profile).
  • Develop and evolve the vendor-agnostic adapter layer for messaging providers (Listrak today; Iterable/Braze/etc. future).
  • Oversee secure webhook ingestion through Apigee GKE with HMAC validation and rate limiting.
  • Enforce zero-trust security using IAM, Workload Identity, and least-privilege access.
  • Drive platform-level observability: logs, metrics, distributed tracing, and event audits.
  • Collaborate with Digital, Loyalty, CRM, MDM, Architecture, and Infrastructure teams.
  • Provide technical leadership to offshore Senior Developers, Developers, and QA/Automation.
  • Participate in architecture reviews, capacity planning (4M+ monthly events), and production operations.

Required Skills & Experience

  • 10+ years backend engineering; 5+ years implementing event-driven architectures.
  • Strong expertise in Java, Spring Boot, microservices, and distributed systems.
  • Hands-on experience with GKE/Kubernetes, Pub/Sub or Kafka, and cloud-native design.
  • Experience with Avro, Protobuf, or schema-based payload governance.
  • Strong integration experience with external APIs (MarTech, CRM, MDM, or messaging systems).
  • Understanding of IAM, secure webhook handling, and zero-trust principles.
  • Experience implementing observability frameworks across microservices.

Preferred Qualifications

  • Experience building or operating large-scale notification, messaging, or orchestration platforms.
  • Exposure to ESPs (Listrak, Braze, Iterable, SFMC, Adobe Campaign).
  • Experience with hybrid on-prem cloud event ingestion models.

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