Senior AI Engineer - Production LLMs for Pet E-commerce

zooplus SE; Madrid; Híbrido; EUR 90.000 - 130.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model (60% office, 40% at

20 days abroad in approved countries

Training and development opportunities

Wellbeing offers

20% product discount

Subsidised transport or bike leasing

Descripción de la vacante

zooplus SE is seeking a Senior AI Engineer to design, build, and operate production-grade AI applications in our Agentic Commerce Program. You will develop backend services and APIs that integrate large language models into business workflows, focusing on reliability, safety, observability, and maintainability.

You will own end-to-end services, adapt to evolving models, and help teams adopt effective AI engineering practices in a multinational, hybrid environment with offices across Madrid,

Formación

• Strong Python and backend engineering skills for building production-grade services.
• Proven experience shipping LLM-powered applications in production.
• Strong understanding of prompt engineering, structured outputs, context management, and tool calling.
• Experience integrating foundation models and LLM platforms such as Azure OpenAI, OpenAI, or Bedrock.
• Strong experience in API design, testing, deployment discipline, observability, evaluation, and failure handling.
• Solid practical understanding of AI safety, reliability, and evaluation, including guardrails, fallback patterns, and output validation.
• A pragmatic approach to solving messy real-world problems with clean, maintainable systems.
• Curious, delivery-focused, and comfortable working in a fast-moving technical landscape.

Responsabilidades

• Build and operate production-grade AI services and backend applications in Python.
• Design and implement LLM-powered workflows, including prompt design, context management, structured outputs, and tool calling.
• Define robust contracts for APIs and AI outputs.
• Test, evaluate, and improve AI services through automated testing, prompt iteration, and measurable evaluation approaches.
• Implement safety and reliability controls such as validation, guardrails, fallbacks, and error handling.
• Monitor and improve production systems using logs, metrics, traces, and AI observability tooling.
• Work closely with product owners, architects, AI teams and domain stakeholders to turn ambiguous use cases into production-ready solutions.
• Continuously improve systems through model upgrades, prompt iteration, and operational optimisation.

Conocimientos

Python backend

LLM applications

Prompt engineering

API design

Observability

AI safety

System design

Experience with LLM platforms

Herramientas

Azure OpenAI

OpenAI

Bedrock

Descripción del empleo

zooplus SE is seeking a Senior AI Engineer to design, build, and operate production-grade AI applications in our Agentic Commerce Program. You will develop backend services and APIs that integrate large language models into business workflows, focusing on reliability, safety, observability, and maintainability.

You will own end-to-end services, adapt to evolving models, and help teams adopt effective AI engineering practices in a multinational, hybrid environment with offices across Madrid,