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 integral 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

Design and deploy scalable AI/ML systems that power our customer platforms, focusing on personalization, semantic search, and retrieval-augmented generation (RAG).





Own our vector database strategy using technologies like Vertex AI Vector Search, pgvector, or Pinecone to support high‑scale similarity search.

Define and govern key data models in BigQuery, capturing complex customer behaviors, campaign interactions, and event schemas.

Build robust retrieval and embedding pipelines to integrate AI-driven intelligence into our CRM, CDP, and marketing automation tools.

Architect and launch AI services on GCP utilizing Vertex AI, Cloud Run, GKE, Dataflow, and Pub/Sub.

Partner directly with product and marketing teams to turn customer and commercial opportunities into highly optimized AI/ML products.

Set engineering standards for AI production reliability, leading system evaluations, and guiding fellow engineers through technical design and code reviews.

What you will need

Significant hands‑on experience architecting, deploying, and maintaining production‑grade AI/ML

📌 Senior AI Engineer – Customer (Barcelona)
🏢 Kiwi.com
📍 Barcelona