At Kiwi, we are already running AI in production, not just designing it, but building and shipping it across the product.

We’re looking for a Senior AI Software Engineer who is deeply hands-on and comfortable owning features end-to-end: from backend logic and AI integration to frontend experiences. This role is about building fast, iterating in production, and making AI usable for real users.
- What you’ll do:
- Build end-to-end features powered by LLMs and agents (backend + frontend)
- Integrate AI into real user-facing flows (voice, chat, product interfaces)
- Design and implement APIs and services that connect AI systems with the product
- Work on performance across the stack: frontend responsiveness, backend latency, AI cost/throughput
- Ship quickly, iterate in production, and continuously improve real user experiences

What we’re looking for:
- 5+ years in software development, ideally in full-stack roles- Strong backend skills (Node.js, TypeScript, etc)



and solid frontend experience (React, Next.js, etc)
- Experience integrating LLM APIs, agents, or automation into real products
- Ability to own features end-to-end, from idea to production
- Hands-on experience with PostgreSQL or other relational databases.
- Comfortable working in fast-moving environments with mínimal structure
- Strong execution mindset, you build, ship, and improve
- Fluent English communication
- Preferred: experience in fintech or digital financial products

What we offer:
- The opportunity to build AI features used by real users from day one
- Ownership of end-to-end product development, not just isolated components
- Real-world challenges across backend, frontend, and AI systems
- A fast-moving environment where your work quickly reaches production
- Fully remote (Colombia / Argentina)

📌 Senior Ai Software Engineer (Buenos Aires)
🏢 Kiwi Financial
📍 Buenos Aires