> Markdown version of [/jobs/ext/2195350-senior-full-stack-ai-core-engineer-remote](https://www.wearedevelopers.com/jobs/ext/2195350-senior-full-stack-ai-core-engineer-remote). 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 Full-Stack Ai Core Engineer - Remote

- **Company:** Circle
- **Location:** Santander, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, ReactJS, Backend, Front End Software Development
- **Published:** August 23, 2026
- **Apply:** https://www.buscojobs.com.es/senior-full-stack-ai-core-engineer-remote-en-santander-ID-368570532

## About the Role

The role requires 6+ years of experience on high-traffic apps, hands-on AI feature delivery, and strong Rails/React proficiency. Global, remotely distributed team with competitive compensation and benefits.
#J-*****-Ljbffr

## Description

Circle is hiring a strong full-stack engineer to lead AI-enabled features on a Rails backend and React frontend. You'll ship end-to-end AI projects, design experiments, and build scalable AI infrastructure in a remote, async environment.The role requires 6+ years of experience on high-traffic apps, hands-on AI feature delivery, and strong Rails/React proficiency. Global, remotely distributed team with competitive compensation and benefits.#J-*****-Ljbffr


## Related Videos

- [Edit Your Future: Queerverse Radical AI](https://www.wearedevelopers.com/videos/909-edit-your-future-queerverse-radical-ai)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs)
- [WeAreDevelopers LIVE – AI, Freelancing, Keeping Up with Tech and More](https://www.wearedevelopers.com/videos/1786-wearedevelopers-live-ai-freelancing-keeping-up-with-tech-and-more)
- [AI is dead, long live AK](https://www.wearedevelopers.com/videos/1093-ai-is-dead-long-live-ak)
- [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean)

## Related Articles

- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023)
- [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)