Senior AI Product Engineer

Cosuno

9d•Hybrid

About The Position

Join our team and build the intelligent systems at the core of Cosuno's platform. Generative AI: Build and improve our LLM-powered systems that navigate the complex, often messy tendering workflow. Ship end-to-end into the product: Own features from model/agent through API to the TypeScript front-end — backend service, API, and the integration into the web app. Collaborate across teams: Work with Product, Engineering, and Data to translate business problems into shipped AI features. Maintain production AI: Monitoring, alerting, and continuous improvement of everything we deploy.

Requirements

TypeScript, React, Node: Non-negotiable. Comfortable shipping into our web app end-to-end — front-end, backend service, API.
Strong Python: 5+ years writing production-grade Python. Write clean, well-structured code.
End-to-end product delivery: Shipped AI-powered features into a production web app and owned the integration from research code to real users.
LLM application depth: Deep hands-on experience building and deploying LLM/agent systems — RAG, tool use, multi-step reasoning, evals.
Backend engineering skills: Design APIs, data pipelines, and services.
Product mindset: Comfortable with ambiguity and can judge when something is good enough to ship.
Sharp problem solver: Quickly identify what matters in a complex system and decide what to do next.
Bias for action: Instinct to find out with data rather than keep wondering when unsure something will work.

Responsibilities

Build and improve LLM-powered systems.
Ship end-to-end features from model/agent through API to the TypeScript front-end.
Own features from model/agent through API to the TypeScript front-end — backend service, API, and the integration into the web app.
Collaborate with Product, Engineering, and Data to translate business problems into shipped AI features.
Monitor, alert, and continuously improve deployed AI systems.