94 freelance English-speaking jobs in Lisbon
AI Trainer - Freelance Data Annotator
- Toloka Annotators
- Lisbon
- April 27
Freelance Software Developer (Ruby) - AI Trainer
- Mindrift
- Lisbon
- May 4
Freelance Software Developer (Ruby) - AI Trainer 4 days ago Be among the first 25 applicantsThis opportunity ... and ambiguous project contextsTeam player: open to code reviews, feedback, and knowledge sharingOur freelance ... to $30/hour depending on your skills, experience, and project needsTake part in a part‐time, remote, freelance
Freelance Software Developer (Kotlin) - AI Trainer
- Mindrift
- Lisbon
- April 29
Freelance Software Developer (Kotlin) - AI Trainer 1 day ago Be among the first 25 applicantsGet AI-powered ... $30/hour depending on your skills, experience, and project needs.Take part in a part‐time, remote, freelance ... ConsultingReferrals increase your chances of interviewing at Mindrift by 2xSign in to set job alerts for "Freelance
Freelance Accounting Expert - AI Trainer
- Mindrift
- Lisbon
- May 4
Freelance Accounting Expert - AI Trainer 3 days ago – be among the first 25 applicants.Get AI‐powered ... switch between tasks and topics quickly and sometimes work with challenging, complex guidelines.Our freelance ... $33/hour depending on your skills, experience, and project needs.Take part in a part‐time, remote, freelance
Electrical Engineer with Python Experience - Freelance AI Trainer
- Mindrift
- Lisbon
- May 3
Electrical Engineer with Python Experience - Freelance AI Trainer 2 days ago Be among the first 25 applicantsThis ... engineering problemsBenefitsEarn up to $33/hour for your expertiseFully remote, flexible, part‐time freelance
Mechanical Engineer with Python Experience - Freelance AI Trainer
- Mindrift
- Lisbon
- April 29
Mechanical Engineer with Python Experience - Freelance AI Trainer 2 days ago Be among the first 25 applicantsThis ... computationally intensive problemsBenefitsEarn up to $33/hour for your expertiseFully remote, flexible, part‐time freelance
Freelance Machine Learning Research Engineer (Python)
- Mindrift
- Lisbon
- April 30
switch between tasks and topics quickly and sometimes work with challenging, complex guidelinesOur freelance ... to $34/hour depending on your skills, experience, and project needsTake part in a part-time, remote, freelance
Freelance Machine Learning Developer (Python)
- Mindrift
- Lisbon
- April 30
switch between tasks and topics quickly and sometimes work with challenging, complex guidelines Our freelance ... $34/hour depending on your skills, experience, and project needs Take part in a part-time, remote, freelance
Freelance Agent Evaluation Engineer
- Mindrift
- Lisbon
- April 30
Freelance Agent Evaluation Engineer needed to build virtual companies, design and calibrate tasks, and write tests for AI agents. Requires 5+ years software development experience, primarily Python, and experience with full-stack development, testing, Docker, and CI/CD.
Electrical Engineer & Python Expert - Freelance AI Trainer
- Mindrift
- Lisbon
- April 28
Electrical Engineer with Python expertise sought for freelance AI training projects. Design computational engineering problems, develop Python solutions, and verify results.
Freelance Financial Analyst - AI Trainer
- Mindrift
- Lisbon
- April 29
Freelance Financial Analyst - AI Trainer At Mindrift, innovation meets opportunity. ... $34/hour depending on your skills, experience, and project needs.Take part in a part‐time, remote, freelance
Mathematician with Python - Freelance AI Trainer
- Mindrift
- Lisbon
- May 4
Freelance AI trainer needed to design math problems, evaluate AI solutions, and validate calculations using Python. Must have a mathematics degree, 3+ years of experience, strong Python skills, and excellent written English.
Freelance Peer Reviewer - Clinical Psychiatry - Remote
- Cactus Communications
- Lisbon
- May 9
Researchers with a PhD and publications are needed to conduct peer reviews for academic journals and publishers. Reviewers will assess manuscripts for originality, methodology, and conclusions.
Material Scientist with Python - Freelance AI Trainer
- Mindrift
- Lisbon
- May 2
Freelance AI trainer needed to design material engineering problems requiring Python programming for AI system testing and evaluation. Must have a degree in Material Science or related field, Python proficiency, and 2+ years of professional experience.
Low-Code Automation Engineer - Freelance AI Trainer
- Mindrift
- Lisbon
- April 17
of Generative AI by tapping into real‐world expertise from across the globe.About The Role This is a freelance
Senior ML Engineer
- Masentó Group
- Lisbon
- April 26
Portugal/ Remote / Freelance or PermanentWe are looking for a Senior ML Engineer / Data Scientist who
Quantum Research Scientist with Python - Freelance AI Trainer
- Mindrift
- Lisbon
- April 24
Freelance AI trainer needed to design computational physics problems requiring Python programming. Must have a degree in Physics or related field and 2+ years of experience.
Physics Researcher (Python) - Freelance AI Trainer
- Mindrift
- Lisbon
- May 4
Physics Researcher needed for part-time, project-based AI training. Design physics problems, evaluate AI solutions, and validate calculations using Python.
Freelance Automation Workflow Specialist (No-Code)
- Mindrift
- Lisbon
- May 3
About The RoleThis is a freelance role for a Tendem project. ... scenarios) is a plus English proficiency: Upper‐intermediate (B2) or above (required) BenefitsWhy this freelance
Mathematics Researcher (Python) - Freelance AI Trainer
- Mindrift
- Lisbon
- May 2
Freelance AI trainer needed to design mathematics problems, evaluate AI solutions, and validate calculations using Python. Must have a degree in Mathematics or related field, 3+ years of experience, strong Python proficiency, and excellent written English.



























