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Sr. Java Developer

Zenith Algorithms • St. Louis, MO, US • published 2026-10-01 09:58:24.869299

Description

**Location:** St. Louis, MO (onsite client interview and worksite mandatory Only) Core Technical Must\-Haves * 8\+ years of professional Java development experience (enterprise\-scale microservices) * 5\+ years of hands\-on cloud platform experience (AWS strongly preferred) – architecture \+ deployment * Deep expertise with **Spring Boot** and related Java frameworks * Experience with GraphQL and Node.js in backend development * Strong background in **event\-driven architectures** and messaging systems (Apache Kafka, Apache Camel) * Proven experience leading application modernization (monolith\-to\-microservices, legacy integrations) * Expertise in containerization \& orchestration: Docker \+ Kubernetes * Familiarity with service meshes (e.g., Istio), API gateways (Zuul, NGINX), and OAuth2/SAML * Proficiency with CI/CD tools (GitLab, Jenkins) * Experience with observability tools (DataDog, SumoLogic) and distributed tracing * Strong understanding of telecommunications systems (identity management, billing systems, device/network management preferred) . Leadership \& Delivery Fit * Experience architecting and leading development of robust Java\-based microservices * Proven ability t...

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