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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AI Engineer / Data Scientist - **Company:** hello again GmbH - **Location:** Wien, Austria - **Salary:** €60,000.0 - **Contract:** Permanent contract - **Skills:** A/B Testing, Artificial Intelligence, Python (Programming Language), Machine Learning, Language Modeling, Tensorflow, Large Language Models, Pandas, Machine Learning Operations - **Published:** September 25, 2026 - **Apply:** https://devjobs.at/team/hello-again-gmb-h/career ## About the Role * Engineering Skills: Confident with Python (e.g. Pandas, common ML frameworks) and able to bring models into production in a clean, maintainable way. * Experiment & Causal Thinking: You don't just want to build models - you want to prove they work, with clean measurement and honest attribution. * Proactive Working Style: A structured, solution-oriented and self-directed approach to new, open-ended problems. * Language: Professional English skills; German is a welcome plus. * Location: You are ready to join our team on-site in Leonding (Linz) or Vienna., * LLM & GenAI Experience: Hands-on experience with modern language models - prompting, RAG/grounding, tool use, and above all the systematic evaluation of AI outputs. * AI-First Approach: You use AI tools daily, have built prototypes yourself, and hold a well-founded view on how AI products will evolve over the coming years. ## Description * We run 1,000+ white-label loyalty programs across Europe, serving 17M+ end consumers in 28 countries. * As we move into the next era of loyalty, we are looking for an AI Engineer & Data Scientist (d/f/m) to further build the intelligent core of our platform. * In this role you turn transaction and behavioral data into measurable impact. * You build the models, pipelines and experiments that move us from a "tool to run loyalty" to a platform that "runs loyalty - and proves it works." * Machine Learning & Data Science: Build and improve ML models that drive personalization and customer insights - e.g. segmentation, churn and behavior prediction, and uplift measurement. * Intelligent, Automated Features: Help develop AI-driven, personalized features across our platform, from automated messaging to smart campaign optimization. * LLM Integration: Integrate large language models into our product and build robust evaluation and grounding to ensure reliable, high-quality output at scale. * Experimentation & Measurement: Design and run A/B tests and causal measurement to prove the real impact of AI-driven features. * Data & ML Pipelines: Work with large-scale transaction and behavioral data, ensure data quality and instrumentation, and bring models reliably into production. * Prototyping & Impact: Rapidly prototype with modern AI tools, validate ideas directly on real data, and drive data-informed decisions across the team., * What matters more than a specific number of years is how you think and what you have already built - whether you are an early-career talent with strong projects or an experienced practitioner. ## Related Videos - [Bringing the power of AI to your application.](https://www.wearedevelopers.com/videos/1010-bringing-the-power-of-ai-to-your-application) - [How E.On productionizes its AI model & Implementation of Secure Generative AI.](https://www.wearedevelopers.com/videos/623-how-e-on-productionizes-its-ai-model-implementation-of-secure-generative-ai) - [Machine learning in the browser with TensorFlowjs](https://www.wearedevelopers.com/videos/155-machine-learning-in-the-browser-with-tensorflowjs) - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [You are not an AI developer](https://www.wearedevelopers.com/videos/1148-you-are-not-an-ai-developer) - [Beyond Autocomplete: Local AI Code Completion Demystified](https://www.wearedevelopers.com/videos/961-beyond-autocomplete-local-ai-code-completion-demystified) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Austria – the most livable place for software developers?](https://www.wearedevelopers.com/magazine/20-austria-the-most-livable-place-for-software-developers) - [How to Find Tech Jobs in Vienna](https://www.wearedevelopers.com/magazine/292-how-to-find-tech-jobs-in-vienna) - [Best Companies to Work For in Austria: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/192-best-companies-to-work-for-in-austria-top-25-companies-in-2023) - [IT Salaries in Austria](https://www.wearedevelopers.com/magazine/286-it-salaries-in-austria) - [Data Analyst Salary Austria](https://www.wearedevelopers.com/magazine/275-data-analyst-salary-austria)