92 freelance English-speaking jobs in Lisbon

Physics Researcher needed for part-time, project-based AI training. Design physics problems, evaluate AI solutions, and validate calculations using Python.

Manage international client projects from planning to delivery. Define scope, milestones, and deliverables. Translate requirements into tasks and iterations. Lead Agile ceremonies and provide status updates.

Freelance AI Evaluation Engineer needed to create challenging coding test cases for AI systems. Requires 5+ years of Python development experience, full-stack development skills, and experience writing functional and integration tests.

Freelance Supply Chain Consultant to design disruption scenarios, evaluate AI recommendations, and assess outputs for accuracy and business relevance within ERP systems.

Freelance Data Scientist to design and develop computationally intensive data science problems using Python and SQL. Must have 5+ years of experience, expertise in Python libraries (Pandas, NumPy, Scikit-learn), statistical analysis, and machine learning.

Portuguese Language Specialist (Portugal) - Freelance AI Trainer Project PortugalAre you a Portuguese

Portugal/ Remote / Freelance or PermanentWe are looking for a Senior ML Engineer / Data Scientist who

About the Role This is a freelance role for a Tendem project. ... Benefits Why this freelance opportunity might be a great fit for you?

This role is ideal for someone who has worked in an agency, freelance, or multi-client environment and ... Requirements What We're Looking For Required: 2+ years of email marketing experience, preferably in an agency, freelance

of Generative AI by tapping into real-world expertise from across the globe.About The Role This is a freelance ... troubleshoot independentlyEnglish proficiency: Upper-intermediate (B2) or above (required)Benefits Why this freelance

Flexible, fully remote freelance work that fits your current commitmentsApply your migration expertise

About the Role This is a freelance role for a Tendem project. ... Benefits Why this freelance opportunity might be a great fit for you?

About the Role This is a freelance role for a Tendem project. ... Benefits Why this freelance opportunity might be a great fit for you?

Join Cross Border Talents as a Freelance Recruiter and work with a global network of professionals across

Freelance AI trainer needed to design computational physics problems requiring Python programming. Must have a physics degree, Python proficiency, and experience with numerical simulation methods.

Freelance AI trainer needed to design computational chemistry problems requiring Python programming. Must have a chemistry degree, Python proficiency, and experience with numerical methods in chemistry.

Freelance mathematicians with a degree and 2+ years of experience are sought to design problems, evaluate AI solutions, and improve AI reasoning for leading tech companies.

Freelance Junior Journalist will train AI models to understand and generate human-like text. Tasks include crafting responses, generating prompts, defining scoring criteria, and ensuring quality.

About the Role This is a freelance role for a Tendem project. ... Benefits Why this freelance opportunity might be a great fit for you?

About the Role This is a freelance role for a Tendem project. ... Benefits Why this freelance opportunity might be a great fit for you?