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From the employer's careers site First seen 7 Nov 2026

Senior Java Engineer - Security - Elasticsearch

Elastic Spain senior full-time

Salary

€67,000-€106,000 EUR per year

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Description

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale , unleashing the potential of businesses and people.

We are seeking a Senior Software Developer to join the Elasticsearch Security team. In this role, you will contribute to the architecture and design of Elasticsearch's main features, including authentication, authorization, and tenant isolation. You will work with engineering and product leaders at Elastic to provide high-performance security at all levels.

Responsibilities

  • Contribute to core security initiatives from architecture to production, focusing on the delivery of new critical features.
  • Participate in the technical design, planning, and execution for major security components inside the Elasticsearch core engine.
  • Develop foundational security models for features.
  • Optimize security performance at scale in distributed systems environments.
  • Apply cryptographic solutions to address genuine customer use cases.
  • Ensure robust data isolation within shared infrastructure supporting disparate customers.
  • Monitor and apply the latest advancements and best practices in security.
  • Collaborate with peers across the company to embed security into new customer features from the outset.
  • Drive vulnerability management efforts by collaborating closely with the InfoSec team.
  • Leverage AI-driven tools to automate vulnerability triage, prioritization, and preliminary investigation.

Requirements

  • Deep knowledge of Java internals and JVM memory management.
  • Experience building authorization systems that are scalable and performant under high concurrency and large permission sets.
  • Solid comprehension of distributed systems security.
  • Deep knowledge of edge identity protocols (OAuth 2.0, SAML).
  • Proven track record of using AI to accelerate development, debug complex systems, and optimize code.
  • Ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities.
  • Ability to work autonomously, supporting decisions and results in a distributed team.

Nice to Have

  • Knowledge of cipher suites, TLS handshakes, and PKI/certificate lifecycle management.
  • Cryptographic methods considering memory usage and delays.
  • Familiarity with the implications of Post-Quantum Cryptography (PQC) and readiness to support the migration of services to quantum-resistant cryptographic algorithms.
  • Hands-on experience mapping engine-level technical controls to FedRAMP (Moderate/High), FIPS 140, and SOC 2 requirements.
  • Experience working on the internals of a data store or search engine.

Compensation

The typical starting salary range for this role is: €67,000-€106,000 EUR.

Benefits

  • Competitive pay based on the work you do here and not your previous salary.
  • Health coverage for you and your family in many locations.
  • Ability to craft your calendar with flexible locations and schedules for many roles.
  • Generous number of vacation days each year.
  • Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service.
  • Up to 40 hours each year to use toward volunteer projects you love.
  • Embracing parenthood with minimum of 16 weeks of parental leave.

Skills

Required

  • Java
  • JVM memory management
  • authorization systems
  • distributed systems security
  • edge identity protocols (OAuth 2.0, SAML)
  • AI-driven tools

Nice to have

  • cipher suites
  • TLS handshakes
  • PKI/certificate lifecycle management
  • Post-Quantum Cryptography (PQC)
  • FedRAMP (Moderate/High)
  • FIPS 140
  • SOC 2 requirements

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/elastic/jobs/8355159

Apply on Elastic