Agentic AI Engineer — Build Real-World Customer Agents

Sixt; Viseu; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Flexible work setup

28 vacation days per year

Birthday day off

Private health insurance for you and a

Coverflex allowance

Daily meal allowance

Exclusive SIXT rates

Job summary

SIXT is building a Data Science team in Portugal, shaping Customer Service Transformation with an AI assistant that authenticates customers, manages reservations, and answers policies across 10+ markets and 7 languages.

You will own agent logic end to end, translating business problems into capabilities, and delivering real transactions with robust guardrails, authentication, and integration to Salesforce and Genesys.

Qualifications

• Hands-on software engineering with production ownership.
• Experience building tool-calling agents.
• Experience with LLMs and prompt engineering discipline.

Responsibilities

• Own agents end to end: prompt, orchestration graph, tools, evals, deployment, dashboard.
• Translate business problems into agent capabilities with stakeholders.
• Ensure cost and latency balance; implement multi-provider model routing and prompts caching.
• Collaborate across stack with software engineers, data scientists, MLOps and platform teams.

Skills

Python programming

AWS cloud experience

Lang Graph

Lang Chain

LLMOps

English fluency

Tools

Lang Graph

Lang Chain

Open API

AWS Bedrock

Job description

SIXT is building a Data Science team in Portugal, shaping Customer Service Transformation with an AI assistant that authenticates customers, manages reservations, and answers policies across 10+ markets and 7 languages.

You will own agent logic end to end, translating business problems into capabilities, and delivering real transactions with robust guardrails, authentication, and integration to Salesforce and Genesys.