Senior AI/ML Engineer: C#/.NET & Python in Production

act digital; Porto; On-site; EUR 70,000 - 110,000; Full time

Job summary

act digital in Porto, Portugal is seeking a Senior AI/ML Software Engineer to join a Framework and Research team. You will design backend services with C#/.NET, train and deploy ML models, and develop reusable AI components for multiple product areas, while advancing AI initiatives and production-ready solutions.

You will build robust ML pipelines in Python, apply MLOps, and mentor engineers, contributing to governance and scalable backend systems.

Qualifications

• Requires strong C#/.NET software engineering skills.
• Hands-on ML/DL development experience across model types.
• Experience building, training, evaluating, and deploying ML models.

Responsibilities

• Build backend services with C# and .NET.
• Design, train, and deploy ML models.
• Develop reusable AI/ML components for multiple product areas.
• Transform business requirements into production-ready software and AI solutions.
• Contribute to LLM, RAG, and Generative AI initiatives.
• Develop ML pipelines using Python and modern frameworks.
• Apply MLOps across deployment, versioning, monitoring and retraining.
• Mentor engineers and promote best practices.

Skills

C#/.NET

Machine Learning

Python

Education

Bachelor's or Master's in CS/SE/Data Science

Tools

Docker

Kubernetes

PyTorch

TensorFlow

Job description

act digital in Porto, Portugal is seeking a Senior AI/ML Software Engineer to join a Framework and Research team. You will design backend services with C#/.NET, train and deploy ML models, and develop reusable AI components for multiple product areas, while advancing AI initiatives and production-ready solutions.

You will build robust ML pipelines in Python, apply MLOps, and mentor engineers, contributing to governance and scalable backend systems.