Senior Ai Agent Developer

Senior AI Agent Developer
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
About the Role
You know the difference between a demo and a product.
A Snapshot of Your Day
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%+ reliability, optimising the balance between reasoning depth, latency, and cost.
Embed with product teams to evolve agent capabilities based on real usage data, closing the loop between what's built and what actually works.
What You Bring
6–9 years in software engineering with 3+ years in GenAI, building and shipping production systems in enterprise settings.
Strong proficiency in Python with production deployment experience – you write code that other engineers can maintain, test, and extend.
Solid AWS knowledge (CDK, Serverless, Bedrock) with production deployment experience; familiarity with other cloud platforms is a plus.
Hands-on experience with LLM providers and frameworks: Azure OpenAI, AWS Bedrock, Hugging Face, LangChain/LangGraph – and the judgment to know when to use a framework vs. build custom.
Deep expertise in agent frameworks (LangGraph, AutoGen, CrewAI) combined with the ability to build custom orchestration when off-the-shelf doesn't cut it.
University degree or equivalent experience in Computer Science, Engineering, or a related field.
About the team
Our Gas Services division offers Low-emission power generation through service and decarbonization.
Zero or low emission power generation and all gas turbines under one roof, steam turbines and generators.
Decarbonization opportunities through service offerings, modernization, and digitalization of the fleet.
Who is Siemens Energy?
At Siemens Energy, we are more than just an energy technology company.
With +100,000 dedicated employees in more than 90 countries, we develop the energy systems of the future, ensuring that the growing energy demand of the global community is met reliably and sustainably.
The technologies created in our research departments and factories drive the energy transition and provide the base for one sixth of the world's electricity generation.Our global team is committed to making sustainable, reliable, and affordable energy a reality by pushing the boundaries of what is possible.
We uphold a 150-year legacy of innovation that encourages our search for people who will support our focus on decarbonization, new technologies, and energy transformation.Find out how you can make a difference at Siemens Energy: Our Commitment to DiversityLucky for us, we are not all the same.
Through diversity, we generate power.
We run on inclusion, and our combined creative energy is fueled by over 130 nationalities.
Siemens Energy celebrates character—no matter what ethnic background, gender, age, religion, identity, or disability.
We energize society, all of society, and we do not discriminate based on our differences.We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
Please contact us to request accommodation.Rewards/Benefits
Rewards/Benefits
Competitive salary and meal allowance
Fair compensation for international work
Health insurance coverage
Remote work permitted within the country
Additional 5 "Pontes" days off and Birthday off if it falls on a weekday, when not abroad (only applies for Portugal)
Among others
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