> Markdown version of [/jobs/ext/4595868-senior-software-engineer-fullstack](https://www.wearedevelopers.com/jobs/ext/4595868-senior-software-engineer-fullstack). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - Fullstack - **Company:** Commercehub, Inc. - **Location:** Granada, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Training Data, Artificial Intelligence - **Published:** November 6, 2026 - **Apply:** https://www.jobleads.com/es/job/senior-software-engineer-fullstack--granada--ed97cd0bcd83f4464ad2d1847341c7634 ## About the Role * 5+ years of experience working at top US tech firms. * Passion for improving model capabilities in complex SWE tasks. ## Description Senior Software Engineer - Fully Remote | Upto $210/hr Role Responsibilities * Evaluate and enhance AI model capabilities in complex SWE tasks. * Collaborate with AI research teams to improve training data quality. * Develop benchmarks for assessing AI-generated solutions. * Work independently and asynchronously to meet project deadlines. * Shape model reasoning and elevate training data quality. Qualifications * 5+ years of experience working at top US tech firms. * Passion for improving model capabilities in complex SWE tasks.