Senior AI Software Engineer

Description

Summary: Seeking a hands-on Senior AI Software Engineer to build and ship end-to-end features powered by AI, integrating LLMs into user-facing products. Highlights: 1. Build end-to-end features powered by LLMs and agents 2. Integrate AI into real user-facing flows 3. Own features from idea to production in a fast-moving environment 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 * Must have hands\-on experience applying AI in live product environments, working with systems that are actively used and continuously evolving * 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 minimal 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)