About this role
This Senior Machine Learning Engineer position is suited for an experienced practitioner who wants to independently own critical machine learning subsystems in Portugal. The role involves designing practical solutions for proactive AI applications that operate reliably at scale.
Role Overview
ACTAI seeks a Senior Member of Technical Staff for Machine Learning in Portugal to build core systems that bring intelligence to everyday workflows without complex prompting. The position focuses on hands-on technical depth, taking ambiguous problems, and shipping production-ready machine learning solutions.
Key Responsibilities
Requirements
Skills and Tools
About the Company
ACTAI develops proactive applications designed to bring intelligence to conversations, errands, organizing, and workflows with minimal to no prompting. The organization aims to replace basic, non-AI-native utilities used by over five billion people with reliable, long-running workflow tools that reduce hallucinations. Operating as a small and hands-on team, the company focuses on high talent density, rapid decision-making, and independent execution.
How to Apply
Interested candidates should apply on the official company careers page.
Skills and tech stack
Questions candidates ask
What is the location of this job?
The position is located in Portugal.
What technologies and tools are used in this role?
The tech stack includes Python, PyTorch, JAX, and GPU-based training and inference systems.
What is the interview process like?
The interview process consists of three to four interviews conducted virtually or onsite, evaluated by technical team members with a focus on transparency and prompt decisions.
What are the core duties of this role?
Duties include building core machine learning systems, managing end-to-end pipelines, debugging production issues, collaborating cross-functionally, and mentoring other engineers.