Senior AI Software Engineer
External
Kiwi Financial · ColombiaFull-timeRemote1mo ago
LLMsNext.jsNode.jsPostgreSQLReactTypeScript
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Responsibilities
- 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
Requirements
- 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
Benefits
The opportunity to build AI features used by real users from day oneOwnership of end-to-end product development, not just isolated componentsReal-world challenges across backend, frontend, and AI systemsA fast-moving environment where your work quickly reaches productionFully remote (Colombia / Argentina)Remote work options
Additional Information
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.
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