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New Relic is building an intelligent observability platform that empowers companies to optimize their digital applications and operate reliably in an AI-first world. We are seeking a Senior Software Engineer to join our backend engineering team focused on building and operating JVM-based services that ingest, process, and serve massive volumes of telemetry data.
You will design, build, and operate high-scale, low-latency microservices (primarily Java and Kotlin) with a focus on performance, scalability, and reliability. You'll own services end-to-end: architecture, implementation, deployment, monitoring, on-call participation, and continuous improvement. Your work will involve applying strong concurrency and performance practices including asynchronous programming, backpressure, efficient I/O, memory management, and GC tuning.
Key responsibilities include building and evolving event-driven systems using Kafka for streaming, partitioning, and consumer groups; instrumenting services for deep observability (metrics, logs, traces); defining SLIs/SLOs; designing REST/gRPC APIs and service-to-service communication with resilience patterns; working with containers and Kubernetes; implementing CI/CD pipelines; operating services in production with monitoring, alerting, and incident response; automating testing and operational tasks; collaborating across product, architecture, and cross-functional teams; and mentoring peers while contributing to technical standards.
The role is based in Barcelona, Spain, with a flexible workforce model supporting office-based, remote, or hybrid work arrangements. Visa sponsorship is not available for this position.
REQUIREMENTS:
- Strong experience building and operating production-grade backend services on the JVM (Java and/or Kotlin)
- Solid understanding of distributed systems concepts (consistency, partitioning, replication, fault tolerance) and microservice design
- Hands-on experience with asynchronous and reactive programming (e.g., CompletableFuture, Project Reactor, RxJava, Kotlin coroutines)
BONUS QUALIFICATIONS:
- Deep JVM performance profiling and tuning experience (JFR, async-profiler, JMH)
- Experience with schema registries and serialization formats (Avro, Protobuf) and stream processing (Kafka Streams, Flink)
- Familiarity with data stores used in observability stacks (e.g., Cassandra, Elasticsearch, Redis) and their trade-offs at scale
- Experience with OpenTelemetry
- Prior technical mentorship or leadership in reliability and performance initiatives
