Senior Product Engineer (AI Agents) (m/w/d)
charlesBerlin, Germany
Posted October 30, 2025
Full Time
About the Company
Charles is a Berlin-based WhatsApp marketing platform and Meta Solution Partner. The company offers an easy-to-use software enabling businesses to drive revenue, retention, and innovative customer experiences through personalized messaging and automation. Charles supports GDPR compliance and integrates with popular CRM systems like Shopify, Klaviyo, Emarsys, and Zendesk, making it a key player in the omnichannel marketing space.
Job Description
Charles is a conversational AI and CRM company revolutionizing customer engagement through AI-powered agents. They are seeking a Senior Product Engineer to help drive product and infrastructure development, focusing on building scalable systems for high-performing conversational AI. The role involves collaboration with various teams, developing AI-powered features, and ensuring reliable, data-driven solutions.
Requirements
- 5+ years of experience in software engineering
- Proficiency in Node.js, TypeScript, or another high-level programming language
- Experience with LLMs and AI (prompt engineering, AI APIs, understanding practical limitations)
- Cloud platforms experience (GCP preferred)
- Strong testing-first mindset and monitoring skills
- Data-driven decision-making and creativity
Benefits
- Competitive compensation package
- Health insurance
- Employee discounts
- Open company culture
- Dog-friendly office
- Wellness programs
