Senior Java Developer
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Job Description: Build a Java Spring Boot microservice deployed on Client's Kubernetes infrastructureEnable event-driven user provisioning and lifecycle management between HubSpot (system of record) and Entra External ID via Microsoft GraphRequirements: 6-8 weeks engagement delivering a HubSpot-to-Microsoft Entra External ID integrationJava / Spring Boot - Production-grade microservice development; this is the core of the engagementREST API development - Designing and implementing Create/Update/Disable endpoints; Swagger/OpenAPI documentationWebhook integration - Building and securing inbound webhook receivers (HubSpot webhooks specifically)Microsoft Graph API - Entra External ID user provisioning and lifecycle management (create, update, disable)Docker - Containerization, Dockerfile authoring, Docker Compose for local dev environmentsKubernetes - Deployment artifact creation (manifests or Helm); familiarity with Argo CD a plusCI/CD - GitHub Actions for build/packaging pipelinesObservability tooling - Loki log exporter configuration; Grafana/Prometheus familiaritySecurity patterns - Service-to-service authentication, secrets management (API keys, Graph credentials), WAF/API gateway awareness (Imperva, Tyke)