Prompt Engineer & AI Interaction Designer

Dream your personal growth path at DENSHI!

At DENSHI, we’re not just building software – we’re building a community of innovators. We provide an environment where your ideas are valued, your skills are sharpened, and your potential is realized. This is your chance to work in a place where quality is paramount, and innovation drives every decision.

Our success rests on three foundational pillars: People, Process, and Technology. These pillars work together harmoniously to drive excellence. We empower our team with cutting-edge technology, guide them with refined processes, and rely on passionate individuals to lead the way.

We are looking for a Prompt Engineer & AI Interaction Designer to join us in building the next generation of scalable, high-performance applications.

Your Role

• Collaborate with the AI Architect and AI Software Engineer to design, test, and optimize prompts and conversational flows for LLM-powered applications.
• Develop and maintain prompt templates, grounding strategies, and orchestration logic for Retrieval-Augmented Generation (RAG) workflows.
• Translate business requirements into structured prompt chains and context-aware instructions for AI models (e.g., Azure OpenAI, Semantic Kernel).
• Evaluate and refine model responses for accuracy, consistency, tone, and compliance.
• Contribute to the design of prompt evaluation frameworks and automated testing methods.
• Manage version-controlled repositories for prompt patterns and evaluation datasets.
• Support experimentation with embeddings, vector search, and contextual augmentation for enhanced AI reasoning.
• Collaborate with stakeholders to ensure prompts align with business goals, data policies, and UX guidelines
• Document prompt logic, configuration, and performance metrics in clear, reproducible formats.

Key Requirements

• Bachelor’s degree in computer science, AI, Linguistics, or related field.
• 2–4 years of experience in applied AI, NLP, or conversational systems (or strong academic/research background).
• Deep knowledge of prompt engineering for large language models (LLMs).
• Experience with Azure OpenAI Service, OpenAI API, or similar enterprise LLM platforms.
• Familiarity with Semantic Kernel, LangChain for .NET, or equivalent orchestration frameworks.
• Ability to design structured, context-rich prompts using JSON or YAML.
• Understanding of Retrieval-Augmented Generation (RAG) and vector search fundamentals.
• Basic knowledge of .NET architecture, REST APIs, and C# syntax for effective collaboration with engineers.
• Strong analytical and communication skills with attention to linguistic nuance and logical flow.
• Curiosity-driven mindset for experimentation, iteration, and optimization.

Nice-to-Haves

• Academic background or experience in Computational Linguistics or related linguistic fields.
• Familiarity with Azure Cognitive Search, Redis Vector, Qdrant for .NET.
• Experience with Azure AI Studio (Playground, Prompt Flow).
• Experience using GitHub or Azure DevOps for versioning and CI/CD.
• Exposure to Application Insights and custom evaluation dashboards.
• Experience with Microsoft Copilot Studio, Azure ML Prompt Flow, or internal evaluation tools.
• Knowledge of experiment tracking and A/B testing for prompt performance

We offer you:

• Additional Health Insurance.
• 20 days annual paid leave with an additional +1 to that number for every year of employment.
• Hybrid working model.
• Clear career path.
• No Legacy code, only state-of-the-art technology and new projects!
• A small team in Sofia – we are focused on people growing in the company structure!
• Team buildings and office activities, a lot of memorable moments to come.
• Multisport membership card.
• Free parking for our employees.
• Brand new office with everything brand new in it.
• A wide variety of exciting ongoing projects, with many more new ones on the horizon.