221 freelance English-speaking jobs in Portugal

  • Pubgenius Inc.
  • Lisbon
  • April 17
Manage international client projects from planning to delivery. Define scope, milestones, and deliverables. Translate requirements into tasks and iterations. Lead Agile ceremonies and provide status updates.
  • Mindrift
  • Portugal
  • May 1
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
  • Outlier AI, Inc.
  • Portugal
  • May 1
This freelance opportunity is remote and hours are flexible, so you can work whenever is best for you ... Because this is a freelance opportunity, we do not offer internships, sponsorship, or employment.
  • Cross Border Talents
  • Lisbon
  • May 3
Join Cross Border Talents as a Freelance Recruiter and work with a global network of professionals across
  • Savior Artigos Texteis Lda
  • Portugal
  • April 29
Join Our Team: iGaming Recruitment Specialists (Freelance | Remote)We're looking for experienced recruiters
  • Mindrift
  • Porto
  • April 24
Freelance Mechanical Engineer and Python expert to design and develop computationally intensive AI training problems. Must have a degree in Mechanical Engineering or related field, Python proficiency, and 2+ years of professional experience.
  • Mindrift
  • Porto
  • May 27
Design and develop computationally intensive physics problems requiring Python programming for AI system testing and evaluation.
  • Invisible Agency
  • Lisbon
  • April 30
Portuguese Language Specialist (Portugal) - Freelance AI Trainer Project PortugalAre you a Portuguese
  • Mindrift
  • Porto
  • May 6
LogoFreelance Junior Journalist will train AI models to understand and generate human-like text. Tasks include crafting responses, generating prompts, defining scoring criteria, and ensuring quality.
  • Mindrift
  • Lisbon
  • April 24
LogoFreelance 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.
  • Mindrift
  • Porto
  • April 24
LogoFreelance 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.
  • Mindrift
  • Lisbon
  • April 17
LogoFreelance 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.
  • Innodata Inc.
  • Portalegre
  • May 1
Job Title: Content Reviewer Location: Remote /Portugal Type: Freelance Required Engagement: 30 hours
  • Mindrift
  • Portugal
  • May 1
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.
  • iTRecruiter
  • Porto
  • May 22
environment within the Automotive Technology industry; Flexible contract conditions, including freelance ... ITIL, Automotive Tech, Hybrid Porto, Security Governance, Access Lifecycle Management, SAP Consultant, Freelance
  • Onyx-Conseil
  • Portugal
  • May 27
Freelancer - 3 months +RED Global is looking for a SAP Test Lead for a Greenfield project in Porto, Hybrid - Freelance
  • Mindrift
  • Porto
  • May 6
LogoFreelance Agent Evaluation Engineer needed to create challenging tasks and evaluation criteria for AI coding agents within simulated environments. Requires experience in software development, testing, and Python.
  • Cactus Communications
  • Lisbon
  • May 4
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.
  • Hire Abroad
  • Portugal
  • May 31
HireAbroad is a recruitment marketplace that connects freelance recruiters with verified blue-collar
  • Innodata Inc.
  • Lisbon
  • May 1
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.
Email me future jobs like these: