About this role

Junior Mid Fullstack Developer (.NET + React) Directio Sp. z o.o. Daily tasks: - As a Junior/Mid Fullstack Developer, you will be developing and maintaining web applications using .NET/C# on the backend and React on the frontend; - You will be implementing new application features, APIs, UI components, and integrations, ensuring clean and maintainable code; - You will be supporting the development of AI-enabled features, such as assistants, document-based Q&A, summaries, analysis, or workflow automation; - You will be working with LLM-based tools and APIs, helping integrate AI capabilities into business applications; - You will be supporting simple RAG or knowledge-based solutions, where AI generates answers based on provided documents, data, or context; - You will be helping create reusable AI workflows, prompts, or “skills” for repeatable business tasks; - You will be collaborating with developers, product stakeholders, and business users to translate requirements into working software solutions; - You will be testing, validating, and improving application features, including AI-generated outputs where relevant; - You will be using modern development tools, including AI-assisted tools, to support coding, debugging, documentation, and research.

Musts: C#, .NET, React, JavaScript, TypeScript, REST API, Security, AI, GitHub, ChatGPT, Communication skills, LLM Commercial or strong project experience with C#/.NET, enabling backend development of business applications; Experience with React and JavaScript or TypeScript, enabling development of modern frontend interfaces; Good understanding of REST APIs, databases, application integrations, and basic software architecture; Practical interest or initial experience in building AI-enabled application features using LLMs or similar tools; Basic understanding of RAG, AI-in-the-loop, prompts, and the use of external knowledge or documents in AI-based features; Awareness of common AI-related risks, such as hallucinations, data privacy, security, and the need to validate AI-generated outputs; Experience using AI tools in the software development process, such as GitHub Copilot, ChatGPT, Claude, Cursor, or similar tools; Willingness to learn, experiment, and work with new AI-related technologies and approaches; Strong communication skills, enabling effective collaboration with technical and non-technical stakeholders; Good command of English, enabling clear communication in an international environment.

Nice to have Experience with OpenAI, Azure OpenAI, Claude, Semantic Kernel, LangChain, or similar tools; Experience with vector search, knowledge-base search, document processing, or AI assistants; Experience building chatbots, document Q&A tools, automation workflows, or AI-supported business features; Own AI-related project, demo, GitHub repository, or portfolio showing practical use of AI in software development. We are looking for a Junior/Mid Fullstack Developer (.NET + React) for our client developing modern business applications with a growing focus on AI-enabled features.

The role is suitable for a developer with solid .NET and React foundations who is interested in practical use of AI in software development, including LLM-based features, RAG, AI-in-the-loop workflows, and reusable AI-assisted processes.

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