AI engineer for LLM integration

We are looking for an AI Engineer with a strong Software Engineering background, preferably in C#/.NET Backend Development, who has transitioned or is transitioning into Artificial Intelligence. The ideal candidate combines solid backend development skills with practical experience integrating LLMs, AI-powered features, and modern AI technologies into software applications.

• Design, develop, and maintain scalable backend applications and APIs using C#/.NET.
• Develop and integrate AI-powered features, LLMs, and intelligent services into existing applications.
• Explore and implement AI Agents, Agentic AI workflows, and automation solutions.
• Design cloud-based architectures, database integrations, and CI/CD pipelines.
• Apply software engineering best practices, design patterns, and AI-assisted development tools.
• Collaborate with technical teams and stakeholders in Agile environments, ensuring quality, performance, and maintainability.

• 3–4+ years of professional experience in Software Engineering or Backend Development, preferably with C#/.NET/.NET Core.
• Strong hands-on experience developing backend services, APIs, and scalable applications.
• Practical experience or demonstrated exposure to AI development, LLM integration, or AI-powered applications.
• Good understanding of software architecture, design patterns, and engineering best practices.
• Experience with cloud technologies, preferably Microsoft Azure.
• Knowledge of SQL, data modelling, relational/non-relational databases, CI/CD, and version control.
• Familiarity with AI-assisted development tools, coding agents, Git, Jira, Confluence, and Agile methodologies.
• Relevant technical degree, strong analytical skills, and fluent English.
• Будет плюсом: Experience with Generative AI, Agentic AI, AI Agents, and RAG architectures; Knowledge of Semantic Kernel, Microsoft AutoGen, LangChain, or similar frameworks; Experience with Azure OpenAI, Azure AI Foundry, and AI model orchestration; Knowledge of prompt engineering, fine-tuning, Python, or multi-agent architectures; Experience deploying AI-powered applications into production

• Hybrid — 2 to 3 days per week in the office
• Only candidates already based in Portugal will be considered
• Rate Between €3500 - 4000 RV or Unipessoal (gross value) OR €2100–€2300/month gross salary + benefits (employment contract)
• 6 months, with possibility of renewal