Senior Java Backend/Microservices Engineer – Telecom
1 week ago
Plano, Texas, United States
American IT Systems
Full-time
$50 - $60/hour
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Job Description:
Must Have
- Java 17+ (ideally 21 with virtual threads experience)
- Spring Boot — dependency injection, auto-configuration, profiles
- Apache Kafka — producers, consumers, consumer groups, offset management, SASL/SSL
- Redis — data structures (hashes, lists), connection pooling, pub/sub patterns
- Kubernetes — pods, services, ConfigMaps, deployments, debugging with kubectl
- REST API design — Spring MVC controllers, OpenAPI/Swagger
Strong Plus
- Cassandra — data modeling (partition keys, clustering), CQL, TimeWindowCompaction
- Elasticsearch/OpenSearch — indexing, queries, mapping
- Protocol Buffers — schema definition, serialization/deserialization
- Helm charts — templating, values, chart dependencies
- AWS — MSK, Secrets Manager, EKS, IAM roles for service accounts
- WebSocket — long-lived connections, binary frames, STOMP protocol
Highly Desirable
- Development experience in cloud-based telecom CPE management, telemetry, and service orchestration
Nice to Have
- GraalJS / polyglot JVM experience
- Kafka Connect, schema registries
- Performance tuning at scale (GC tuning, thread pools, connection pools)