Senior AI Engineer - .NET Backend with LLMs (Hybrid)

iTRTech Group; Lisboa; Hybrid; EUR 23,000 - 26,000; Full time

Job summary

iTRTech Group is seeking an AI Engineer with a strong .NET backend background to join a hybrid role in Portugal (Lisbon/Porto/Fundão/Coimbra). You will design and deliver scalable C#/.NET APIs, and integrate AI-powered features and LLMs into software.

The ideal candidate has 3–4+ years in software engineering, cloud experience (Azure), and familiarity with CI/CD and databases. English fluency is required, and the role offers hybrid work 2–3 days in the office.

Qualifications

• 3–4+ years in software engineering or backend development, preferably with C#/.NET.
• Strong backend services, APIs, and scalable applications experience.
• Experience with AI development, LLM integration, or AI-powered apps.
• Knowledge of software architecture, design patterns, and best practices.
• Experience with Azure and cloud technologies.
• Familiarity with CI/CD, SQL, data modelling, and version control; English fluency.

Responsibilities

• Design, develop, and maintain scalable backend apps and APIs using C#/.NET.
• Develop and integrate AI-powered features, LLMs, and AI services into apps.
• Explore AI Agents, agentic AI workflows, and automation solutions.
• Design cloud architectures, DB integrations, and CI/CD pipelines.
• Apply software engineering patterns and AI-assisted development tools.
• Collaborate with teams in Agile environments to ensure quality and performance.

Skills

C#/.NET

AI development

LLMs integration

Azure cloud

CI/CD pipelines

Education

Bachelor/Master in CS or related

Tools

Git

Jira

Confluence

LangChain

Semantic Kernel

Job description

iTRTech Group is seeking an AI Engineer with a strong .NET backend background to join a hybrid role in Portugal (Lisbon/Porto/Fundão/Coimbra). You will design and deliver scalable C#/.NET APIs, and integrate AI-powered features and LLMs into software.

The ideal candidate has 3–4+ years in software engineering, cloud experience (Azure), and familiarity with CI/CD and databases. English fluency is required, and the role offers hybrid work 2–3 days in the office.