[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Amazon jobs](https://jobs.opennash.com/companies/amazon/) · [Search jobs](/search/) Amazon · Seattle, WA # Software Development Engineer, Amazon Java Runtime US, WA, Seattle Software Engineering Listed on Amazon’s official careers site. Posted September 23, 2026. Check that it is still open and apply there. [Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10558008/software-development-engineer-amazon-java-runtime) [OpenNash Jobs](https://jobs.opennash.com/) / [Amazon](https://jobs.opennash.com/companies/amazon/) / Software Development Engineer, Amazon Java Runtime ## Job description The Java Runtimes Team (JRT) owns and advances the Java runtime that powers a large share of Amazon's production services. We work at the intersection of language runtimes, compilers, and hardware — tuning the JVM and its ecosystem so that thousands of services run faster, use less memory, and scale more efficiently across x86 and Graviton (AArch64) fleets. We contribute directly to OpenJDK and our Corretto JDK, and we build the tooling that turns deep runtime expertise into automated, fleet-wide performance gains. We are hiring a Runtime Engineer to work across three closely-linked areas: the JIT compiler, garbage collection, and systems-level software optimization. You will profile real production workloads, identify runtime bottlenecks, prototype and land improvements in the JVM, and help encode that expertise into tools that scale beyond one-to-one consultation. ### Key job responsibilities 1. Analyze production JVM workloads to identify compiler, GC, and runtime bottlenecks, and translate findings into concrete optimizations. 2. Design, implement, and benchmark improvements to JIT compilation, garbage collection, and core runtime subsystems. 3. Contribute changes upstream to OpenJDK and to Amazon Corretto, working through code review and community processes. 4. Tune runtime behavior for performance and efficiency across x86 and Graviton (AArch64) architectures. 5. Build and improve profiling, observability, and auto-tuning tooling so runtime expertise scales across the fleet rather than through manual, per-service consultation. 6. Validate performance and reliability of changes against real workloads before broad rollout. 7. Partner with service teams to drive adoption of runtime improvements and newer JDK versions. ## At a glance - Posted by the employer: Sep 23, 2026 - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 11, 2026 - Listed for: 18 days - Location: US, WA, Seattle[Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10558008/software-development-engineer-amazon-java-runtime) ## More jobs at Amazon ### [AWS Software Development Manager, Elastic Load Balancing](https://jobs.opennash.com/companies/amazon/jobs/8bc81eb90a02a81cc9b1/) US, WA, Seattle ### [Applied Science Manager, Computer Vision, Perception Science, Prime Air Vehicle Software](https://jobs.opennash.com/companies/amazon/jobs/f8f3afcff56816849d13/) US, WA, Seattle ### [Developer Experience Engineer, AWS Developer Experience](https://jobs.opennash.com/companies/amazon/jobs/fbd46cd6cad9f0b7a4b1/) US, WA, Seattle ### [Developer Marketing Manager, Developer Marketing](https://jobs.opennash.com/companies/amazon/jobs/d8c4520c33f205cd0159/) US, WA, Seattle ### [Director of Software Development](https://jobs.opennash.com/companies/amazon/jobs/cff67c726a21a2a83042/) US, WA, Seattle ## Similar jobs at other companies ### [Senior Software Engineer, Contact Center Platforms (Java/AWS/Amazon Connect)](https://jobs.opennash.com/companies/ntt/jobs/24a713cd9cf528ae7fd4/) NTT · Plano, TX, US, United States ### [Software Development Engineer](https://jobs.opennash.com/companies/fortinet/jobs/28951e39aa65fab8d748/) Fortinet · Sunnyvale, CA, United States ### [Software Development Engineer (GUI)](https://jobs.opennash.com/companies/fortinet/jobs/bb39f255ec65bd5058b8/) Fortinet · Sunnyvale, CA, United States ### [Software Development Engineer II](https://jobs.opennash.com/companies/optimum/jobs/bdef493135bced9dff7b/) Optimum · Bethpage, NY, US ### [Software Development Engineer III](https://jobs.opennash.com/companies/optimum/jobs/3fea6604c9aa98bcc956/) Optimum · Bethpage, NY, US OpenNash lists jobs from employers’ own careers sites and does not handle applications. Dates come from the employer where stated; “first seen” and “last checked” are our own observations. OpenNash Jobs · Official listings with dates and links to the employer. [Weekly hiring report](/reports/hiring/) · [Methodology](/methodology/)