Build AI-powered product capabilities that automate, predict, and simplify user workflows Spendesk is looking for a Backend Software Engineer (IC3) to join our AI & Data Products squad and help build the next generation of product features powered by AI, ML, and intelligent automation.
This is a hands-on backend role focused on turning predictive models, LLM capabilities, and business intelligence into real product experiences. You will work on backend services, APIs and MCPs that bring automation, prediction, and assisted decision-making into Spendesk’s user journeys, helping reduce manual work and make our product more proactive and intelligent.
As a Backend Software Engineer (IC3) in the AI & Data Products squad, you will design, build, and operate backend services that power AI-native and ML-native product features.
In practice, this means partnering with ML Engineers to productionize predictive logic, expose it through clean APIs and services, and integrate it into workflows that automate tasks, simplify decision-making, or anticipate user needs.




backend services that make AI capabilities reusable across multiple product flows.
Backend services for AI and ML-powered product features
Design, build, and operate backend services and APIs that power AI-driven, ML-driven, or automation-heavy product capabilities.
Translate predictive logic and AI outputs into reliable backend behaviors that can be consumed by user-facing product flows.
Ensure features are designed for production, not just experimentation, with clear ownership of deployment, monitoring, and maintainability.
Integrate model-serving APIs or LLM calls into robust backend services (your squad, or the applicative squad’s services) with proper retries, fallbacks, and observability.
Help define evaluation and monitoring patterns that make intelligent product behaviors measurable over time.
Build backend capabilities that help automate repetitive tasks, anticipate user needs, or simplify complex workflows.
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📌 Backend Software Engineer (España)
🏢 Spendesk
📍 España