AI Engineer - Customer & Marketing Systems

About Kiwi.com Kiwi.com is a leading global travel-tech company headquartered in the Czech Republic. Our innovative algorithm enables users to find better route options and prices other search engines can’t see, daily performing billions of price checks across 95% of global flight content. Are you bold, bright and curious? Join a global business that’s still got a start-up heart. About our Customer & Marketing Engineering Team In the Kiwi.com Customer & Marketing Engineering team, we focus on building intelligent systems that drive how we interact with millions of global travelers. Working with a Google Cloud-native stack, our mission is to leverage cutting-edge AI, machine learning, and semantic search to personalize travel discovery and campaign automation. We build for depth and speed, deploying models that have an immediate business impact and directly shape the customer journey. What you will do Build and deploy intelligent features that enhance customer segmentation, targeting, and marketing performance. Work with advanced vector databases like Vertex AI Vector Search and pgvector to support embedding storage and high-scale similarity search. Contribute to core data models in BigQuery, mapping complex customer behaviors and campaign interactions. Maintain and optimize retrieval pipelines that integrate directly with our CRM, CDP, and marketing automation platforms. Develop AI services on Google Cloud Platform using modern tools such as Vertex AI, Cloud Run, and BigQuery. Collaborate closely with product and marketing teams to turn fresh ideas into production-ready software features. Write clean, fully tested code while actively participating in engineering design and code reviews to accelerate your own growth. Experiment with new AI tools and techniques , keeping our engineering workflows at the cutting edge. What you will need Some hands-on experience in software, data, or machine learning engineering (including high-impact projects or internships). Solid programming fundamentals in Python along with a clean code mindset. Strong SQL skills and a genuine interest in relational or dimensional data modeling. Exposure to AI/ML concepts such as embeddings, large language models (LLMs), or retrieval-augmented generation (RAG). A strong bias for action and automation , thriving in a fast-moving environment where we value speed over perfection and iterate in real-time. Intellectual curiosity and high ownership over your technical growth, with a readiness to take on increasingly complex problems. Strong written and verbal communication skills in English language to ensure smooth, clear collaboration within international teams. We offer you We give our employees the freedom to choose between the environment of work from home and our office in Prague, situated in the heart of the Karlin district with an in-house gym, sleeping spots, canteen, showers, chillout zones, and free refreshments. We enjoy benefits, such as meal vouchers, 25 days of paid vacation, Cafeteria, sick days, VIP Medical Care, Multisport card, Makro Cash & Carry Card, Employee Assistance Program, and career development framework. Annual financial bonus based on company and individual performance. Relocation package (including visa transfer support). We're rewarding Kiwis with flight vouchers to celebrate their Kiwi anniversaries. Grow.Kiwi program which supports parents and keeps them engaged with the company. Dogs are welcome in our offices. Interested? Join us and help us make travel more accessible to all. Kiwi.com is proud to be an equal opportunity workplace and employer. We review applications for employment without regard to their race, colour, religion, sex, sexual orientation, gender identity, national origin, ancestry, citizenship, age, uniformed services, genetic information, physical or mental disability, medical condition, marital status, or any other basis prohibited by law. Throughout the recruitment process and for some time after it’s finished, we’re going to process your Personal Data. You can find all the necessary information in our Privacy Policy available at: https://jobs.kiwi.com/recruitment-privacy-policy/ .