Senior AI Agent Developer

About the Role
Job ID Location Spain Madrid Tres Cantos Country: SPAIN State/Province/County: Catalonia City: Barcelona
Country: ROMANIA State/Province/County: Bucuresti City: Bucharest
Organization Gas Services Business Unit Distributed Full / Part time Full-time Experience Level Professional / Experienced

A Snapshot of Your Day
You know the difference between a demo and a product.
As a Senior AI Agent Developer at Siemens Energy’s AI Factory, you’ll implement agent features and integrations that go live in production – APIs, tool-calling workflows, multi-step reasoning chains – inside a company whose technologies help generate an estimated one-sixth of the world’s electricity. Your code won’t sit in a notebook. It will triage engineering emails, assist project managers on multi-billion-euro installations, and help field service teams maintain gas turbines across continents.



This is a rare opportunity to truly transform the workplace with AI for thousands of employees & help support them manage the increased workload resulting from record breaking business growth - you’ll help prove that a company with over 150 years of heritage can ship AI faster than most startups.

How You’ll Make an Impact
Implement agent features and integrations in production codebases – APIs, websockets, tool-calling workflows – following established architecture patterns, no low-code platforms. Adapt and integrate pre-trained LLMs and embeddings into applications (prompting, fine-tuning, RAG pipelines) and keep them maintainable, testable, and observable over time. Build self-verifying agent workflows with chain-of-verification, evaluator models, and human-in-the-loop escalation paths that make agents trustworthy in enterprise environments. Create comprehensive agent observability – full audit trails, structured logging, performance metrics – so the team always knows what agents are doing and why. Ship autonomous agents making real business decisions with 95%+ re

📌 Senior AI Agent Developer (Madrid)
🏢 Siemens Energy
📍 Madrid