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.
Job Tags