Our partner is looking for a Staff Backend Engineer, AI Tooling based in Spain. This is a high-impact engineering role focused on building the platforms, tooling, and AI-powered capabilities that help engineering teams move faster without compromising quality. Your work will shape developer productivity, CI/CD, testing, observability, engineering insights, and AI-assisted development practices across the organization.

You'll operate with significant autonomy, leading multi-quarter projects and turning complex technical challenges into measurable outcomes. The role combines hands-on backend engineering with technical leadership, mentorship, and ownership of systems used by other engineers every day. It's an opportunity to have a broad technical footprint while helping define how modern, AI-enabled software engineering teams operate.

Own the architecture, development, deployment, and long-term evolution of developer platform and AI tooling capabilities. Lead multi-quarter technical projects, breaking complex initiatives into clear milestones and delivering measurable improvements iteratively. Build and operate systems covering developer productivity, CI/CD, observability and engineering metrics, code quality automation, testing infrastructure, and AI-assisted development.

Take ownership of the operational health of systems, using data and feedback to guide improvements, maintenance, iteration, and deprecation. 7+ years of professional software engineering experience,



including 2-3+ years operating at Senior or Staff level. Strong hands-on experience building and operating developer platforms, developer tooling, CI/CD systems, observability or metrics infrastructure, code quality automation, testing infrastructure, or related engineering systems. Demonstrated experience delivering infrastructure or tooling that measurably improves developer velocity, productivity, quality, or reduces engineering complexity.

Experience working within a high-performing engineering environment, such as a scale-up or established technology organization, with a strong understanding of how infrastructure decisions affect developer productivity and product quality.

Experience integrating third-party services, APIs, SaaS tools, or external platforms into internal systems, with strong attention to reliability, security, maintainability, and user experience. Strong understanding of how platform and infrastructure investments enable broader product and commercial outcomes. Full-time employment; contractor arrangements are not available.

Remote work options available in Romania, subject to applicable employment, compliance, and right-to-work requirements. 25 days of annual leave, plus applicable local public holidays. Collaboration with highly experienced engineering teams working at the forefront of AI-enabled software development. Visa sponsorship may be available for eligible candidates already located in a UK/EU country who require support;

📌 (Senior or Staff) Backend Engineer, AI tooling (Madrid)
🏢 Lever
📍 Madrid