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Leading the technical design, plan, and execution for major architectural and code-level performance improvements.</li>\n<li>Developing foundational performance models and methodologies for complex, distributed systems.</li>\n<li>Driving optimization strategies to ensure Elasticsearch remains performant, predictable, and scalable in diverse environments.</li>\n<li>Profiling and analyzing system behavior to identify bottlenecks in logging, metrics, vector search, and ES|QL.</li>\n<li>Ensuring robust performance benchmarks and regression detection for both stateful and stateless (Serverless) architectures.</li>\n<li>Collaborating across the company to embed performance-first thinking into new features from the outset.</li>\n<li>Drive automation efforts by designing and building AI-assisted optimization harnesses that streamline profiling, hypothesis testing, and benchmarking.</li>\n<li>Mentoring and coaching other engineers, fostering a culture of technical excellence and performance-aware development.</li>\n</ul>\n<p><strong>Requirements</strong></p>\n<ul>\n<li>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.</li>\n<li>You have proven experience in profiling and optimizing distributed systems. This includes deep experience with benchmarking tools (e.g., flamegraphs, JMH, Rally), identifying performance regressions, and implementing algorithmic or hardware-aware optimizations.</li>\n<li>You have a solid comprehension of distributed systems architecture, including partition tolerance, cluster state propagation, and scaling challenges in large-scale data stores.</li>\n<li>You have a proven track record of using AI or advanced tooling to accelerate optimization, debug complex performance issues, and automate benchmarking workflows.</li>\n<li>You possess the ability to collaborate across functions and teams, acting as a force multiplier for performance engineering across the organization.</li>\n<li>You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities.</li>\n<li>You can work autonomously, drive decisions and result in a distributed team by leveraging asynchronous, direct, and transparent communication.</li>\n</ul>\n<p><strong>Nice to Have</strong></p>\n<ul>\n<li>Experience integrating high-performance native libraries (e.g., C++, Rust, SIMD-accelerated code) into Java applications.</li>\n<li>Deep knowledge of modern storage engine performance, index modes, or vector search optimizations.</li>\n<li>Experience defining and managing Performance SLAs and success criteria for distributed systems.</li>\n<li>Experience working on the internals of a large-scale data store or search engine.</li>\n<li>Experience working on the internals of a data store or search engine.</li>\n</ul>\n<p><strong>Compensation</strong></p>\n<p>The typical starting salary range for this role is: 326,400 Lei - 516,400 Lei RON</p>\n<p><strong>Benefits</strong></p>\n<ul>\n<li>Competitive pay based on the work you do here and not your previous salary</li>\n<li>Health coverage for you and your family in many locations</li>\n<li>Ability to craft your calendar with flexible locations and schedules for many roles</li>\n<li>Generous number of vacation days each year</li>\n<li>Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service</li>\n<li>Up to 40 hours each year to use toward volunteer projects you love</li>\n<li>Embracing parenthood with minimum of 16 weeks of parental leave</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_28919197-5df","directApply":true,"hiringOrganization":{"@type":"Organization","name":"Elastic","sameAs":"https://www.elastic.co/","logo":"https://logos.yubhub.co/elastic.co.png"},"x-apply-url":"https://job-boards.greenhouse.io/elastic/jobs/8138694?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply","x-work-arrangement":null,"x-experience-level":"senior","x-job-type":"full-time","x-salary-range":"326,400 Lei - 516,400 Lei RON","x-skills-required":["Java","JVM memory management","concurrency models","distributed systems","performance optimization","benchmarking tools","AI-assisted optimization"],"x-skills-preferred":["high-performance native libraries","modern storage engine performance","index modes","vector search optimizations","Performance SLAs"],"datePosted":"2026-08-19T00:13:05.949Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Romania"}},"employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Technology","skills":"Java, JVM memory management, concurrency models, distributed systems, performance optimization, benchmarking tools, AI-assisted optimization, high-performance native libraries, modern storage engine performance, index modes, vector search optimizations, Performance SLAs","baseSalary":{"@type":"MonetaryAmount","currency":"USD","value":{"@type":"QuantitativeValue","minValue":326400,"maxValue":516400,"unitText":"YEAR"}}},{"@context":"https://schema.org","@type":"JobPosting","identifier":{"@type":"PropertyValue","name":"YubHub","value":"job_cdadd38d-61e"},"title":"Senior Software Engineer - Storage Engine - Elasticsearch","description":"<p>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.</p>\n<p>We&#39;re looking for a Senior Software Engineer to join the Elasticsearch - Storage Engine team. This globally distributed, fully remote team of experienced engineers develops core storage and query technologies for observability workloads, including improving storage efficiency, advancing ES|QL query processing and performance, and optimizing data layouts for object storage.</p>\n<p><strong>Responsibilities</strong></p>\n<ul>\n<li>Lead the architectural evolution of core storage engine components, continuously identifying and resolving performance bottlenecks in indexing layouts, serialization formats, and resource utilization.</li>\n<li>Lead cross organisational initiatives to drive and build industry-leading observability solutions.</li>\n<li>Work with a globally distributed team of experienced engineers focused on the logs and metrics capabilities of Elasticsearch.</li>\n<li>Drive continuous operational and system improvements by introducing best practices for clean coding standards, demystifying complex system behaviours, untangling complexity to bring architectural clarity across the platform.</li>\n<li>Serve as a subject matter expert (SME) across key areas of Elasticsearch, acting as a trusted technical advisor and mentor to the wider engineering organisation.</li>\n<li>Work with a global community to triage, resolve, and review issues and pull requests, collaborating with domain experts as needed.</li>\n<li>Write idiomatic modern Java -- Elasticsearch is 99.8% Java!</li>\n</ul>\n<p><strong>Requirements</strong></p>\n<ul>\n<li>You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities.</li>\n<li>You work autonomously and can drive decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communication.</li>\n<li>You have a proven track record of using AI to accelerate development, debug complex systems, and optimise code, while still owning the final outcomes.</li>\n<li>You bring a prompt-engineering mindset to know how to leverage AI agents effectively, using sound engineering judgement to validate results and recognise its limitations.</li>\n<li>You have implemented novel techniques to efficiently index, store, and query time-series or logs data.</li>\n<li>You have experience with one or more data storage technologies like Elasticsearch, Solr, PostgreSQL, MongoDB, or Prometheus and have some idea how they work and why they work that way.</li>\n<li>You have strong core Java skills, a deep understanding of its concurrency primitives, with a proven ability to design and optimise efficient data structures and algorithms.</li>\n<li>You excel in a collaborative environment, actively participate in technical discussions, and work effectively across distributed teams.</li>\n<li>You have excellent verbal and written communication skills and collaborate with respect, empathy, and professionalism in a distributed team.</li>\n</ul>\n<p><strong>Nice to Have</strong></p>\n<ul>\n<li>You&#39;ve built things with Elasticsearch before.</li>\n<li>You&#39;ve worked with open source projects and are familiar with different styles of source control workflow and continuous integration.</li>\n<li>You’ve worked on data storage technology.</li>\n<li>You have experience designing, leading, and owning cross-functional initiatives.</li>\n<li>You have past working experience with database, search engine, OS, or cloud service development.</li>\n</ul>\n<p><strong>Compensation</strong> The typical starting salary range for this role is: 272,000 Lei - 430,200 Lei RON</p>\n<p><strong>Benefits</strong></p>\n<ul>\n<li>Competitive pay based on the work you do here and not your previous salary.</li>\n<li>Health coverage for you and your family in many locations.</li>\n<li>Ability to craft your calendar with flexible locations and schedules for many roles.</li>\n<li>Generous number of vacation days each year.</li>\n<li>Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service.</li>\n<li>Up to 40 hours each year to use toward volunteer projects you love.</li>\n<li>Embracing parenthood with minimum of 16 weeks of parental leave.</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_cdadd38d-61e","directApply":true,"hiringOrganization":{"@type":"Organization","name":"Elastic","sameAs":"https://www.elastic.co/","logo":"https://logos.yubhub.co/elastic.co.png"},"x-apply-url":"https://job-boards.greenhouse.io/elastic/jobs/8074894?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply","x-work-arrangement":"remote","x-experience-level":"senior","x-job-type":"full-time","x-salary-range":"272,000 Lei - 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Distributed Systems - Elasticsearch","description":"<p>We are on the lookout for a Principal Software Engineer I to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. This team owns how nodes in an Elasticsearch cluster communicate, and how data are indexed, allocated, and replicated across nodes.</p>\n<p>Improving Elasticsearch’s components that support concurrent and consistent indexing across multiple machines.</p>\n<p>Maintaining our cluster coordination system to keep performance high even though nodes come and go from the cluster and data moves around, while maintaining the safety and liveness properties of the system as a whole.</p>\n<p>Pushing the limits on the number of shards, nodes, and petabytes that Elasticsearch can handle today</p>\n<p>Looking into all kinds of issues, including performance or concurrency issues, and proposing solutions.</p>\n<p>Supporting our support engineers with the harder problems.</p>\n<p>A strong background in distributed systems and consensus algorithms.</p>\n<p>You have strong skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as newer language features.</p>\n<p>You have a deep technical proficiency in algorithms.</p>\n<p>You have shown your ability to understand and work on complex, highly distributed systems.</p>\n<p>You demonstrate the ability to build and debug features with a broad impact, running on multiple machines.</p>\n<p>You are able to own projects from beginning to end. This covers both technical design and working with others to develop needed components.</p>\n<p>You have experience managing projects involving multiple engineers.</p>\n<p>Bonus Points:</p>\n<p>Data stores</p>\n<p>Search, analytics, Lucene</p>\n<p>Strong knowledge of the JDK</p>\n<p>Asynchronous event-driven network frameworks such as Netty</p>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_5e57dc1e-f7a","directApply":true,"hiringOrganization":{"@type":"Organization","name":"Elastic","sameAs":"https://www.elastic.co/","logo":"https://logos.yubhub.co/elastic.co.png"},"x-apply-url":"https://job-boards.greenhouse.io/elastic/jobs/8002561?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply","x-work-arrangement":"remote","x-experience-level":"senior","x-job-type":"full-time","x-salary-range":"326.400 Lei-516.400 Lei RON","x-skills-required":["distributed systems","consensus algorithms","core Java","data structures","concurrency constructs","newer language features","algorithms","Java Development Kit","asynchronous event-driven network frameworks"],"x-skills-preferred":["data stores","search","analytics","Lucene"],"datePosted":"2026-06-12T12:10:21.730Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Romania"}},"jobLocationType":"TELECOMMUTE","employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Technology","skills":"distributed systems, consensus algorithms, core Java, data structures, concurrency constructs, newer language features, algorithms, Java Development Kit, asynchronous event-driven network frameworks, data stores, search, analytics, Lucene"},{"@context":"https://schema.org","@type":"JobPosting","identifier":{"@type":"PropertyValue","name":"YubHub","value":"job_b4fbd917-85a"},"title":"Senior Java Engineer - Distributed Systems - Elasticsearch","description":"<p>We are on the lookout for a Senior Software Engineer to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. This team owns how nodes in an Elasticsearch cluster communicate, and how data are indexed, allocated, and replicated across nodes.</p>\n<p>Improving Elasticsearch’s components that support concurrent and consistent indexing across multiple machines.</p>\n<p>Maintaining our cluster coordination system to keep performance high even though nodes come and go from the cluster and data moves around, while maintaining the safety and liveness properties of the system as a whole.</p>\n<p>Pushing the limits on the number of shards, nodes, and petabytes that Elasticsearch can handle today</p>\n<p>Looking into all kinds of issues, including performance or concurrency issues, and proposing solutions.</p>\n<p>Supporting our support engineers with the harder problems.</p>\n<p>The ideal candidate will have a strong background in distributed systems and consensus algorithms, strong skills in core Java, and a deep technical proficiency in algorithms. 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It doesn’t matter if you’re just out of college or your children are; we need you for what you can do.</p>\n<p>We strive to have parity of benefits across regions and while regulations differ from place to place, we believe taking care of our people is the right thing to do.</p>\n<p>Competitive pay based on the work you do here and not your previous salary</p>\n<p>Health coverage for you and your family in many locations</p>\n<p>Ability to craft your calendar with flexible locations and schedules for many roles</p>\n<p>Generous number of vacation days each year</p>\n<p>Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service</p>\n<p>Up to 40 hours each year to use toward volunteer projects you love</p>\n<p>Embracing parenthood with minimum of 16 weeks of parental leave</p>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_b4fbd917-85a","directApply":true,"hiringOrganization":{"@type":"Organization","name":"Elastic","sameAs":"https://www.elastic.co/","logo":"https://logos.yubhub.co/elastic.co.png"},"x-apply-url":"https://job-boards.greenhouse.io/elastic/jobs/8001191?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply","x-work-arrangement":"remote","x-experience-level":"senior","x-job-type":"full-time","x-salary-range":"272.000 Lei-430.200 Lei RON","x-skills-required":["Java","Distributed systems","Consensus algorithms","Data stores","Search","Analytics","Lucene","JDK","Asynchronous event-driven network frameworks"],"x-skills-preferred":[],"datePosted":"2026-06-12T12:09:28.277Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Romania"}},"jobLocationType":"TELECOMMUTE","employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Technology","skills":"Java, Distributed systems, Consensus algorithms, Data stores, Search, Analytics, Lucene, JDK, Asynchronous event-driven network frameworks"}]}