65 freelance English-speaking jobs in Lisbon

Freelance AI trainer needed to design and develop material engineering problems requiring Python programming. Must have a degree in Material Science or related field, Python proficiency, and 2+ years of professional experience.

Freelance AI trainer needed to design and develop computationally intensive statistical problems requiring Python programming. Must have a degree in Statistics or related field, 2+ years of experience, and strong written English.

shaping the future of healthcare Fully remote and flexible — work on your schedule, wherever you are Freelance

Simple task, remote, global participation.We are hiring freelance contributors worldwide to help us collect

Graphic & Digital Designer – Global Brand Global Fashion retail Brand is now looking for freelance designers

projects alongside leading research labs Fully remote and flexible — work when and where it suits you Freelance

Freelance English writers train AI models by crafting text that teaches AI reasoning, logic, and clarity. Contributors create original, fact-checked responses, collaborate with Quality Assurance Specialists, and adhere to style and quality standards.

research labs and healthcare innovators Fully remote and flexible—work when and where it suits you Freelance

AI.Impactful, challenging work with direct business influence.Competitive salary and benefits (full‐time or freelance

cancer research is understood and advanced Fully remote and flexible — work when and where it suits you Freelance

Experienced IT Procurement Specialist needed for software procurement, contract management, and supplier negotiations. Minimum 5 years of experience in vendor management, contract negotiation, and international environments required.

Freelance Mechanical Engineer and Python expert needed for AI training projects. Design computational engineering problems, create Python-based solutions, and verify results. Requires a degree in Mechanical Engineering or related field, Python proficiency, and 2+ years of experience. Strong written English (C1+) is essential.

Freelance Data Analyst (Python) - AI TrainerStudent Intern - Data Analyst & AdministratorWe're unlocking

Portugal Is Required)Machine Learning Platform Engineer (M/F) - Remote (Living In Portugal Is Required)Freelance

We are looking for a Senior Salesforce Marketing Cloud Developer (freelance) to deliver large and complex

companies connects businesses with global, AI-enabled talent across every contingent work type including freelance

Civil Engineer with Python expertise sought for part-time, project-based AI training. Design computational engineering problems, requiring Python programming and numerical methods. Must have a Civil Engineering degree, 2+ years of experience, and strong written English.

HaveLeadership experience within a talent acquisition function.Experience building hiring pipelines for freelance

companies connects businesses with global, AI enabled talent across every contingent work type including freelance

Meeting bonus: EUR 25–50 per qualified meeting On-target monthly earnings: EUR 800–1,200+ Arrangement: Freelance