> Markdown version of [/jobs/ext/4025376-harness-engineer-ai-platform-devops-lead-hybrid](https://www.wearedevelopers.com/jobs/ext/4025376-harness-engineer-ai-platform-devops-lead-hybrid). 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). --- # Harness Engineer: AI Platform & DevOps Lead (Hybrid) - **Company:** Banco Santander, S.A. - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Continuous Integration, DevOps, Python (Programming Language), Cloud Platform System, AI Platforms, Git Flow - **Published:** October 30, 2026 - **Apply:** https://www.jobleads.com/es/job/harness-engineer-ai-platform-devops-lead-hybrid--madrid--e6f15e21c2c2698d02b5782c298539d31 ## About the Role The role requires 8+ years in software/AI engineering, strong leadership, Python and AWS experience, with a focus on secure SDLC and governance. ## Description Santander is seeking a senior Harness Engineer to design and deliver secure, production-grade harnesses enabling coding agents across the Knowledge Base Platform and related solutions. You will define architecture, integrate with Git workflows, CI/CD, observability, and cloud environments, while mentoring teams and establishing reusable patterns. The role requires 8+ years in software/AI engineering, strong leadership, Python and AWS experience, with a focus on secure SDLC and governance.