AI Engineer

• 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.

• Significant hands-on experience architecting, deploying, and maintaining production-grade AI/ML systems at scale.
• Deep expertise within the GCP ecosystem, especially with BigQuery and Vertex AI, alongside hands-on vector database utilization.
• Strong data modeling skills (relational and dimensional) with experience handling high-volume customer datasets and event schemas.
• Advanced Python proficiency and deep familiarity with machine learning frameworks, LLMs, and RAG architectures.
• Familiarity with marketing tech infrastructure-such as CRMs, CDPs, or automation tools-and a solid grasp of data privacy (e.g., GDPR).
• A strong bias for action and automation, thriving in a lean, fast-paced environment where we value speed over perfection and iterate in real-time.
• Strong written and verbal communication skills in English language, with the ability to articulate complex technical decisions to diverse stakeholders.

• We offer a hybrid and flexible work environment. A lovely, modern office in the center of Barcelona (Passeig de Gracia) with great views and amenities.
• Monthly entitlement of 200 Euro redeemable through Cobee. Cobee is a benefits platform offering a range of benefits (meals, transport, nursery, health insurance, and physical wellness) and flexible compensation. It also allows our employees to allocate up to 30% of their gross salary to the consumption of certain products or services, leveraging tax exemption.
• We also enjoy benefits, such as flexible working hours, 30 paid vacation days and sick days.
• Annual financial bonus based on company and individual performance.
• Flight vouchers to celebrate your Kiwi anniversaries.
• Relocation package (including visa transfer support).
• Dogs are welcome in our offices.

Kiwi is a Swiss-Mexican fintech startup targeting micro-merchants in upper-end emerging markets.

• Where cards issuance is growing fast, but acceptance remains low
• Where most of the economy is driven by unbanked micro-merchants, a massive untapped market of +600m micro and small businesses
• Where smartphones penetration is
  already strong

We are live in Mexico since 2015.

We are scaling up: +2,000 card reader sold per month through organic growth

Transactions volume is now above $US 3M, and Revenue reached the milestone of $US 200K