Denys Dushyn developed and integrated the MistralAI LLM Client for the JetBrains/koog repository, enabling GDPR-compliant, Europe-hosted large language model workloads. He designed configurable client options and model definitions in Kotlin, focusing on seamless API integration and cloud service compatibility. Denys provided example usage to accelerate onboarding and validated the client’s support for completions, embeddings, and moderation tasks. His work addressed data residency requirements and streamlined integration into existing service layers, reducing setup time for downstream teams. The project demonstrated depth in full stack development and security-conscious API client design, delivering a modular solution tailored for enterprise compliance needs.