Senior Java Software Engineer
Core
Develop and maintain the Inference API integration layer between Elasticsearch and external machine learning services, enabling semantic search, reranking, and generative AI features.
Role type
Senior Java Software Engineer (Search/AI Platform)
Builds
Elasticsearch Inference API, plugin framework, and REST API integrations for Elastic Cloud and hosted environments.
Domain
Search technology, Machine Learning integration, Cloud infrastructure
Deliverable
production ML models
Required skills
Java (core, concurrency, parallelism, classloaders), REST API design, Protocol design, Streaming (SSE), Async execution, Unit testing, Integration testing, Open source contribution, AI-assisted development
Preferred skills
JDK internals (modules, memory model, GC), ML systems knowledge, Java build tools (Gradle, Maven), Platform team experience
Technologies
Elasticsearch, Elastic Inference Service (EIS), Anthropic, OpenAI, Cohere, Google, Kibana, Gradle, Maven, ESTestCase, YAML
Responsibilities
Build and maintain integrations with internal systems and external inference providers; Contribute to the inference plugin's internal architecture (task settings, chunking, rate limiting); Review open source contributions; Participate in on-call rotation; Write thorough tests (unit, REST integration, rolling-upgrade)
Seniority
Senior, hands-on IC
