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Senior Java Engineer - Core/Infra - Elasticsearch

United Kingdom🌐 Remote💼 Full-time💰 $133,100–$133,100🗓 2026-07-20 → 2026-07-31

Core

Building foundational infrastructure and shared functionality for the Elasticsearch platform to ensure it is performant, maintainable, and secure.

Role type

Senior individual contributor Java engineer (core/infra)

Builds

Core Elasticsearch services, APIs, and shared platform functionalities

Domain

Search engine infrastructure and distributed systems

Deliverable

production ML models | product features | infrastructure

Required skills

Core Java, algorithms and data structures, concurrency and parallelism, low-level Java (classloaders), CI/CD systems, large-scale project leadership, API design

Preferred skills

JDK internals (memory model, garbage collection), observability and telemetry (OpenTelemetry), Go, containers and Kubernetes, Java build tools (Gradle)

Technologies

Elasticsearch, Java, Painless, Buildkite, Argo CD, GitOps, OpenTelemetry, Kubernetes, Gradle, Maven

Responsibilities

Design and implement horizontally-scalable features and APIs, solve performance and concurrency issues, improve operation and observability of cloud systems, own operational investigations end-to-end, collaborate on open-source projects, automate developer workflows

Seniority

Senior, hands-on IC

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