66 freelance English-speaking jobs in Lisbon

At Toloka, we connect smart, curious people from around the world with freelance online tasks that train ... Take part in a part-time, remote, freelance project that fits around your primary professional or academic ... questions when needed Genuine interest in technology and artificial intelligence Benefits Why this freelance

We are looking for a freelance Senior QA Engineer with experience in Siebel to join a critical project ... Basic SQL knowledge Understanding of Order Management processes Project Details Contract: Freelance

Nortenho Dialect Specialist - Freelance AI Trainer ProjectPortugal OverviewAre you a Nortenho language ... Employment type: Freelance / Contract Workplace type: Remote Seniority level: Entry Level ResponsibilitiesConverse

Role We are hiring an IT or Digital Project Manager to run multiple international client projects end to end. You will work closely with engineers, designers, and global clients to deliver high-quality digital products on time and within scope. This role is ideal for someone who enjoys ownership, clear communication, and fast-moving agency environments.

Join Our Team: iGaming Recruitment Specialists (Freelance | Remote) We’re looking for experienced recruiters

Freelance peer reviewers needed for civil, mechanical, and computer science journals. Must have a doctorate, at least two publications in the last two years, and strong analytical and writing skills.

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 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.

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?

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

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?

Freelance AI trainer needed to design computationally intensive mathematical problems requiring Python programming. Must have a degree in Mathematics or related field, Python proficiency, and experience with numerical methods and symbolic computation.

This freelance role is fully remote and offers flexible hours—you can work whenever works best for you.You

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.

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.

and Primary Cover Teachers with recurring availability to provide short-term, occasional cover on a freelance

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

months per customer On-target earnings (OTE): EUR 4,000–5,000/month when hitting quota Arrangement: Freelance