74 freelance English-speaking jobs in Lisbon

  • Innodata Inc.
  • Lisbon
  • March 14
Innodata seeks a remote Content Reviewer to evaluate online content for accuracy and quality. This freelance role requires 30 hours per week and involves identifying errors, categorizing content, and improving AI responses.
  • Mindrift
  • Lisbon
  • April 24
LogoFreelance AI trainer needed to design and develop computational biology problems requiring Python programming. Must have a biology degree, Python proficiency, and experience with biological data analysis and algorithms.
  • Mindrift
  • Lisbon
  • April 10
LogoFreelance AI trainer needed to design computational physics problems requiring Python programming. Must have a degree in Physics or related field, 2+ years of experience, and strong Python skills.
  • Mindrift
  • Lisbon
  • April 10
LogoFreelance optical engineer with Python experience needed to design and develop computationally intensive physics problems. Must have strong Python skills (Numpy, SciPy, Sympy) and experience with numerical simulation methods.
  • Intellect
  • Lisbon
  • April 12
This flexible freelance role allows you to set your own schedule, making it an ideal supplement to your
  • Visit.org
  • Lisbon
  • April 7
LogoVisit.org is looking for a passionate and ambitious Freelance In-Person Event Host in Lisbon, Portugal
  • Prolific
  • Lisbon
  • March 24
Certified Accountants needed for freelance, on-call advisory roles. Analyze financial documents, validate data, and provide expert analysis for B2B and AI research projects. Must have active professional certification (CPA, ACCA, ACA, CIMA, or equivalent).
  • Shakers
  • Lisbon
  • April 9
(no need to be an expert)Role detailsStart : ImmediateLocation : Remote, based inLisbonEngagement : Freelance
  • Vanilleo
  • Lisbon
  • May 1
results-driven attitude Ability to work independently and manage your own territory Status:independent / freelance
  • Mindrift
  • Lisbon
  • April 17
LogoFreelance 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.
  • Mindrift
  • Lisbon
  • April 27
LogoFreelance 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.
  • Alignerr
  • Lisbon
  • April 19
projects alongside leading research labs Fully remote and flexible — work when and where it suits you Freelance
  • Randstad Enterprise
  • Lisbon
  • April 16
chances of interviewing at Randstad Enterprise by 2x Sign in to set job alerts for "Recruiter" roles.Tech Freelance
  • Alignerr
  • Lisbon
  • May 1
research labs and healthcare innovators Fully remote and flexible—work when and where it suits you Freelance
  • Keyrock
  • Lisbon
  • April 28
AI.Impactful, challenging work with direct business influence.Competitive salary and benefits (full‐time or freelance
  • Collective.work
  • Lisbon
  • April 14
LogoExperienced 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.
  • Alignerr
  • Lisbon
  • February 13
cancer research is understood and advanced Fully remote and flexible — work when and where it suits you Freelance
  • Mindrift
  • Lisbon
  • April 4
LogoFreelance 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.
  • Prolific
  • Lisbon
  • March 30
LinkedIn Profile required for eligibility check.Location Remote (US, UK, CAN, EMEA)Type of contract Freelance
  • Valtech
  • Lisbon
  • March 29
We are looking for a Senior Salesforce Marketing Cloud Developer (freelance) to deliver large and complex
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