Senior Data Engineer – AI & Agentic Pipelines… at Sixt GmbH · Lisbon

Job Description

The central Business Intelligence team builds and maintains the SIXT Data Platform and its Data Catalogue, serving thousands of users globally. Our flagship product, the SIXT Data Shop, ingests tens of millions of events daily, processes them to meet diverse consumer needs, and delivers insights through a comprehensive toolbox—from self-service batch processes to real-time ML model endpoints.

Our current focus areas include advancing operational automation, expanding self-service capabilities for data ingestion, ETL workflows, and distribution, and enabling innovative use cases for our customers. Our team of 20 Data Engineers and Business Intelligence Engineers is hands-on, collaborative, and constantly exploring cutting-edge technologies. At SIXT, we value success, agility, ownership, and intercultural collaboration. Join us and become part of the SIXT family.

YOUR ROLE AT SIXT

• Drive Innovation: Explore and implement the latest AWS and big data technologies to uncover hidden opportunities, enable new capabilities, and build integrations for the SIXT Data Shop.
• Collaborate Cross-Functionally: Partner with Data Engineers, BI Analysts, and Data Scientists to architect optimal solutions for diverse analytical use cases, including dashboarding, ad hoc analytics, data-as-a-product, and machine learning.
• Shape Platform Strategy: Contribute to the Data Platform vision and roadmap through your expertise, innovative ideas, and intellectual curiosity.
• Ensure Data Integrity: Demonstrate exceptional work ethics and integrity when handling sensitive customer data, maintaining the highest standards of data protection.
• Architect Agentic Pipelines for Analytics: Design and implement multi-agent workflows that automate end-to-end data operations — from ingestion and transformation to quality validation and distribution — defining clear specs, acceptance criteria, and quality gates so agents execute reliably with minimal human intervention.
• Enable AI-Powered Data Products: Drive the adoption of LLM-augmented data capabilities within the SIXT Data Shop, including RAG pipelines, semantic search over the Data Catalogue, and AI-assisted self-service experiences for internal consumers.

YOUR SKILLS MATTER

• Education&Professional Experience: Bachelor's or Master's degree in Computer Science, Data Engineering, or related field preferred. At least 5 years of professional experience as senior data engineer.
• Data Architecture Expertise: Strong experience with hybrid Data Lake and Data Warehouse architectures, including end-to-end automation of data models from source systems to analytical dashboards using ELT methodologies.
• Cloud Data Warehousing: Proven expertise with analytical cloud data warehouses (Redshift, Snowflake), data transformation using dbt, and orchestrating interdependent workflows with Apache Airflow.
• AI Proficiency: Hands-on experience with AI coding assistants and agentic workflow automation. Ability to leverage LLMs with contextual data and solid understanding of RAG systems and demonstrated experience designing agentic architectures where LLM-driven agents are orchestrated across coding, validation, and data quality stages with structured quality gates. Experince with vector and/or graph databases feeding RAG is a strong plus.
• Agentic Development Maturity: Defines specs and acceptance criteria that autonomous agents can execute end-to-end, reviews diffs rather than line-by-line output, and encodes quality standards as automated pipeline gates. Experience building or evaluating multi-agent orchestration (coding → QA → validation agents) is a strong plus.
• Specification & Direction Skills: Ability to decompose complex data problems into structured, measurable specs — including dependencies, non-functional requirements, and edge cases — that agent systems can consume and execute with high reliability. Capable of identifying architectural drift in agent-generated outputs and course-correcting before it compounds.
• Engineering Excellence: Strong foundation in engineering best practices throughout the development lifecycle, including agile methodologies, code reviews, source control (GitHub), CI/CD pipelines (Jenkins), testing, and operations. Deep understanding of data management fundamentals, distributed systems, and data storage/compute principles.
• Programming Fluency: Advanced proficiency in Python and SQL (required).

WHAT WE OFFER

• A Global Tech Hub in LisbonJoin a thriving international tech community and work alongside engineers, product experts, and business teams who turn ideas into real impact. Our hubs at Factory Lisboa in Beato and ARTs Lisboa in Parque das Nações are where great tech gets built
• Learning & Knowledge ExchangeLevel up through regular events with internal and external speakers. We value curiosity, continuous learning, and open exchange – across teams, disciplines, and borders
• Flexible Work SetupTwo office days a week, flexible hours, and modern spaces built for both deep focus and team collaboration – work the way that brings out your best
• Time Off & WellbeingEnjoy 28 vacation days per year, an additional day off on your birthday, one volunteer day annually, and private health insurance that also covers your spouse and children free of charge
• Practical Everyday BenefitsGet a yearly Coverflex allowance and a daily meal allowance to make everyday life a little easier
• SIXT PerksGet exclusive rates on all SIXT services, with special discounts extended to your family and friends. Because great perks are even better when you can share them

Additional Information

About us:

We are a globally leading mobility service provider with a revenue of €4.00 billion and around 9,000 employees worldwide. Our mobility platform ONE combines our products SIXT rent (car rental), SIXT share (car sharing), SIXT ride (taxi, ride, and chauffeur services), and SIXT+ (car subscription), giving our customers access to our fleet of 350,000 vehicles, the services of 4,000 cooperation partners, and around 5 million drivers worldwide. Together with our franchise partners, we are present in more than 110 countries at 2,000 rental stations. At SIXT, top-tier customer experience and outstanding customer service are our highest priorities. We believe in true entrepreneurship and long-term stability and align our corporate strategy with foresight. Get started with us and apply now!