[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, Catalog System Services - SPCL US, WA, Seattle Software Engineering Listed on Amazon’s official careers site. Posted September 14, 2026. Check that it is still open and apply there. [Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10539357/software-development-engineer-catalog-system-services-spcl) [OpenNash Jobs](https://jobs.opennash.com/) / [Amazon](https://jobs.opennash.com/companies/amazon/) / Software Development Engineer, Catalog System Services - SPCL ## Job description As a Software Development Engineer II in the SPCL (Selling Partner Close Looping) team, you will design and build innovative solutions that enhance how millions of customers discover and shop for related products across Amazon's global marketplaces. Working with billions of product variation relationships (sizes, colors, styles), you'll leverage cloud computing, machine learning, and Large Language Models to ensure variation data quality and consistency. Your work will directly impact customer shopping experiences, making it easier for them to navigate between product variants and find the right version of a product that meets their needs. ### Key job responsibilities * Design and develop scalable services that measure, validate, and improve variation relationship quality across billions of products * Implement sophisticated algorithms to ensure consistency in variation theme attributes (size, color, style) across all global marketplaces * Build innovative GenAI solutions using Large Language Models to automatically evaluate and enhance variation quality * Create robust feedback mechanisms that enable continuous improvement of variation data * Develop tooling and APIs that help Selling Partners address product variation quality issues * Collaborate with cross-functional teams to implement solutions that enhance customer discovery experiences * Participate in architectural decisions that balance performance, cost, and customer experience ### A day in the life * Write and review high-quality, well-tested code in languages such as Java and Python * Collaborate with team members on design documents and architectural decisions * Analyze data to identify variation quality issues and measure improvement impact * Attend daily stand-ups and participate in sprint planning/retrospective meetings * Work with product managers to scope and prioritize new features * Debug and resolve production issues while maintaining service reliability * Monitor system performance and optimize for scale and efficiency * Stay current with latest ML/AI technologies and evaluate their potential application * Mentor junior engineers and provide technical guidance ### About the team The SPCL team sits within Amazon's Catalog Systems division and is responsible for ensuring customers can easily navigate between related product options. We build systems at massive scale, processing billions of product relationships that power shopping experiences across all Amazon marketplaces. Our team maintains a high bar for operational and software engineering excellence while fostering a collaborative and supportive culture. We work closely with data scientists, product managers, and business stakeholders to continually improve the quality of variations in Amazon's catalog, directly enhancing the customer shopping journey. ## At a glance - Posted by the employer: Sep 14, 2026 - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 34 days - Location: US, WA, Seattle[Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10539357/software-development-engineer-catalog-system-services-spcl) ## 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 ### [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 ### [Senior Embedded Software Development Engineer](https://jobs.opennash.com/companies/microsoft/jobs/47f921f9ea9b6ae753e9/) Microsoft · United States, Washington, Redmond [Jobs in Seattle, WA](/locations/us/wa/seattle/)[Jobs in Washington](/locations/us-wa/)[Software Engineering jobs](/functions/software-engineering/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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