[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 · Bellevue, WA # Sr. Machine Learning Engineer, PXT EXR-Ops Tech US, WA, Bellevue Senior individual contributor Data & Analytics Listed on Amazon’s official careers site. Posted September 22, 2026. Check that it is still open and apply there. [Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10556688/sr-machine-learning-engineer-pxt-exr-ops-tech) [OpenNash Jobs](https://jobs.opennash.com/) / [Amazon](https://jobs.opennash.com/companies/amazon/) / Sr. Machine Learning Engineer, PXT EXR-Ops Tech ## Job description We are looking for a Senior Machine Learning Engineer who will serve as a technical leader, driving the design and delivery of complex, large-scale ML systems that have significant business impact. In this role, you will define the ML architecture and technical strategy for your team, influence cross-organizational ML platform decisions, and raise the bar for ML engineering excellence. You will build super-intelligent AI systems, lead the development of production-grade AI services including generative AI and LLMs, and mentor a team of ML engineers. This is a high-impact role requiring deep technical expertise, strong judgment, and the ability to operate in ambiguous problem spaces. ### Key job responsibilities - Define and drive the ML technical strategy and architecture for your team and adjacent teams - Design and lead the implementation of complex, multi-model ML systems at Amazon scale - Architect ML platforms and frameworks that enable rapid experimentation and deployment across the organization - Lead the design of real-time and batch ML serving infrastructure with high availability and low latency - Drive adoption of ML best practices including MLOps, model governance, responsible AI, and cost optimization - Evaluate and introduce new ML technologies, frameworks, and methodologies (e.g., foundation models, RAG, fine-tuning, RLHF) - Lead cross-functional initiatives spanning science, engineering, product, and business teams - Influence org-wide technical decisions through design reviews, architecture reviews, and technical writing (design documents, white papers) - Mentor and develop L4 and L5 ML engineers; raise the hiring bar as a bar raiser or interviewer ### Drive operational excellence - define SLAs, build dashboards, automate incident response, and reduce operational burden ## At a glance - Posted by the employer: Sep 22, 2026 - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 26 days - Location: US, WA, Bellevue[Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10556688/sr-machine-learning-engineer-pxt-exr-ops-tech) ## More jobs at Amazon ### [BIE I - FBA Analytics, FBA Analytics](https://jobs.opennash.com/companies/amazon/jobs/b732399d82cc343dc2d3/) US, WA, Bellevue ### [Business Intelligence Engineer, North America Supply Chain, Supply Chain Placement](https://jobs.opennash.com/companies/amazon/jobs/282b9302ed238d2603d9/) US, WA, Bellevue ### [Business Intelligence Engineer - SCOT, Fulfillment Optimization, SCOT-FO](https://jobs.opennash.com/companies/amazon/jobs/4f01f552ee326092d716/) US, WA, Bellevue ### [Business Intelligence Engineer - SCOT, Fulfillment Optimization, SCOT-FO LRN](https://jobs.opennash.com/companies/amazon/jobs/ea36ed21fd905eddc59e/) US, WA, Bellevue ### [Business Intelligence Engineer II, SCOT - Long Term Planning and Forecasting](https://jobs.opennash.com/companies/amazon/jobs/7aa33de73751df6faf2d/) US, WA, Bellevue ## Similar jobs at other companies ### [Senior Machine Learning Engineer](https://jobs.opennash.com/companies/microsoft/jobs/a28bc03521860e161cf2/) Microsoft · United States, Massachusetts, Cambridge ### [Senior Machine Learning Engineer](https://jobs.opennash.com/companies/cvs-health/jobs/6997911d5e1c02b976f9/) CVS Health · New York, NY ### [A/AI Machine Learning Engineer](https://jobs.opennash.com/companies/lockheed-martin/jobs/653cd776436867ec18c7/) Lockheed Martin · Manassas, VA ### [Senior Staff Engineer, Machine Learning Engineering ( On-device Learning SW)](https://jobs.opennash.com/companies/qualcomm/jobs/d561df305202050c72d5/) Qualcomm · San Diego, California, United States of America ### [Lead Machine Learning Engineer](https://jobs.opennash.com/companies/jpmorganchase/jobs/141a8c68ad71af53803f/) JPMorganChase · New York, NY, United States 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/)