209 freelance English-speaking jobs in Lisbon

Freelance peer reviewers with a doctorate in Heart & Circulatory Disorders are needed to assess manuscripts for originality, study design, literature review, results, and provide constructive feedback.

Graphic Designer – Global Brand – Figma - Porto (Hybrid) Global Designer Brand is now looking for freelance

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscripts in aquatic ecology and conservation.

Freelance peer reviewers with a doctorate in Anesthesiology and Pain Medicine are needed to assess manuscripts for originality, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscripts in computational neuroscience and neuropharmacology.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscripts in agricultural and environmental sciences.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to evaluate manuscripts in neuropsychiatry and behavioral neuroscience.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscript originality, study design, literature review, results, and provide constructive feedback.

Freelance English Writer will train AI models by crafting text that teaches AI reasoning, logic, and clarity. Tasks include creating original, fact-checked responses and collaborating with Quality Assurance Specialists.

Freelance peer reviewers with a doctorate in a relevant field are needed to assess manuscripts for journals. Must have at least two publications in the last two years and strong analytical and written communication skills.

Freelance peer reviewers with a PhD/MD and two recent publications in nutritional epidemiology are needed to assess manuscript originality, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscripts for originality, study design, literature review, results, and conclusions.

Freelance peer reviewers with a PhD/MD and two recent publications in communicable diseases are needed to assess manuscript originality, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and two recent publications in blood disorders are needed to assess manuscript novelty, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and two recent publications in circadian rhythms are needed to assess manuscript novelty, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and at least two publications in the last two years are needed to assess manuscript novelty, study design, literature review, results, and provide constructive feedback.

Freelance peer reviewers with a PhD/MD and two recent publications in multiple myeloma are needed to assess manuscript novelty, study design, literature review, results, and provide constructive feedback.

$34/hour depending on your skills, experience, and project needs Take part in a part‐time, remote, freelance

Data Annotator needed for a freelance, remote role. Annotate and evaluate data to train Large Language Models (LLMs). Must have a Bachelor's degree and experience in data annotation, linguistic evaluation, or AI training projects.

Freelance AI trainer for energy engineering projects. Design problems, evaluate AI solutions, and validate calculations using Python. Requires 3+ years of energy engineering experience, strong Python skills, and excellent written English.