Senior Java Engineer (Security, Elasticsearch)

Elastic; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Health coverage

Flexible location

Generous vacation days

Parental leave

Volunteer time

Donation matching

Job summary

Elastic is seeking a Senior Software Developer for the Elasticsearch Security team in the United Kingdom. You will shape architecture, design, and delivery of core security features, including authentication, authorization, and tenant isolation, at scale.

You will collaborate across engineering and product leadership to embed security into new customer features, optimize performance, and advance cryptographic approaches while driving vulnerability management with the InfoSec team and adopting

Qualifications

• Ability to work autonomously in distributed teams with async communication.
• Strong understanding of distributed systems security and zero-trust concepts.
• Experience building scalable authorization systems for large permission sets.
• Deep knowledge of Java internals and JVM memory management.
• Understanding of concurrency models.
• Experience with edge identity protocols (OAuth 2.0, SAML).
• Proven ability to use AI to accelerate development and debugging.
• Capacity to collaborate across functions and migrate between projects.

Responsibilities

• Contribute to architecture and design of Elasticsearch’s main features, including security aspects.
• Develop security components such as authentication, authorization, and tenant isolation.
• Collaborate with engineering and product leaders to deliver high-performance security at scale.
• Drive vulnerability management with the InfoSec team and leverage AI-driven triage.
• Optimize security performance in distributed systems and data stores.
• Embed security into new customer features from the outset.

Skills

Java internals

JVM memory management

Concurrency models

OAuth 2.0

SAML

Distributed systems security

Encryption concepts

AI in development

Job description

Responsibilities

• 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
• These features include authentication, authorization, and tenant isolation
• You will work with engineering and product leaders at Elastic
• Your goal is to participate in providing high-performance security at all levels
• This includes ensuring that our distributed data store has top-quality security at scale
• Contributing to core security initiatives from architecture to production, focusing on the delivery of new critical features. Participating in the technical design, planning, and execution for major security components inside the Elasticsearch core engine
• Developing the foundational security models for features
• Optimizing security performance at scale in distributed systems environments
• Applying cryptographic solutions to address genuine customer use cases
• Ensuring robust data isolation within shared infrastructure supporting disparate customers
• Monitoring and applying the latest advancements and best practices in security. This includes authentication, identity management, cryptography, and data access management
• Collaborating 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 to proactively identify, assess, and remediate security risks
• Leverage AI-driven tools to automate vulnerability triage, prioritization, and preliminary investigation, streamlining security workflows and reducing manual intervention

Benefits

• Toast to your health: Fully paid health coverage for you and your family, in many locations.
• Craft your calendar: Flexible location and schedule for most roles.
• Create space for you: Distributed by design workforce, plus generous number of vacation days each year.
• Embrace parenthood: Minimum of 16 weeks of parental leave, plus generous family formation benefits.
• Give back your time: 40 hours each year to use toward volunteering with organizations and causes you’re passionate about.
• Amplify your impact — we match donations up to $1500 USD (or local currency equivalent).

Qualifications

• You can work autonomously, supporting decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communication
• You have a solid comprehension of distributed systems security, including node-to-node mutual trust, zero-trust transport, partition tolerance and cluster state propagation
• You have experience building authorization systems that are scalable and performant under high concurrency and large permission sets, including designing access models, validating credentials/tokens at scale, and keeping authorization decisions consistent across a distributed system
• You have deep knowledge of Java internals and JVM memory management.
• You understand how concurrency models work.
• You can write code that is high-performance, thread-safe, and lock-free.
• This experience includes working with large open-source and enterprise codebases
• You have a deep knowledge of edge identity protocols (OAuth 2.0, SAML)
• You have a proven track record of using AI to accelerate development, debug complex systems, and optimize code, while still collaborating on the final outcomes
• You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities
• 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