65 freelance English-speaking jobs in Lisbon

type: Freelance - able to invoice Remuneration: Commission per placed candidates.  ... David Kennedy Recruitment is on the lookout for an amazing Mass Volume Freelance Recruitment Partner ... This freelance role offers a commission-based structure, meaning your earnings will be directly tied ... Position: Freelance Recruiter  Location: Anywhere in the world (ideally within GMT+2 max) Employment

Updated: 07 July 2026 Freelance | 8–20 hrs/week | Remote (EU/UK) Are you an experienced Lean / Six Sigma ... Join 10x Team as a Freelance Lean / Six Sigma Black Belt Expert – AI Trainer and put your process improvement ... Flexible, project‐based freelance assignments – 100% remote Directly influence how AI systems understand ... NOTE At 10x, There Are Two Types Of Opportunities Traditional freelance missions: These are regular project‐based

Freelance peer reviewers with a PhD/MD and two recent publications in Gonorrhea research are needed to assess manuscript novelty, study design, literature review, results, and provide constructive feedback.

Seeking freelance Peer Reviewers in Pediatric Hematology. Requires a PhD/MD or equivalent, two recent publications, and expertise in research methodology. Duties include assessing novelty, study design, literature, and conclusions to provide constructive feedback.

Freelance peer reviewers with a PhD/MD and two recent publications in blood disorders are needed to assess manuscript originality, study design, literature review, results, and provide constructive feedback.

Seeking freelance Peer Reviewers for critical care nursing journals. Requires a Doctorate or equivalent, two recent publications, and expertise in research methodology. Responsibilities include assessing novelty, study design, literature, and conclusions.

Employment type: Freelance / Contract Workplace type: Remote Seniority level: Entry Level #J-18808-Ljbffr

Seeking researchers or retired researchers for freelance peer review in Transplant and Reconstructive surgery. Requires a PhD/MD or equivalent, two recent publications, and strong analytical skills. Responsibilities include assessing novelty, methodology, and conclusions.

Freelance peer reviewers with a doctorate in Pediatric & Gynecologic Surgery are needed to assess manuscripts for originality, study design, literature review, results, and provide constructive feedback.

Seeking researchers with a PhD or equivalent for freelance peer review in Electric Power and Electricity generation. Candidates must have two recent publications, strong analytical skills, and expertise in research methodology.

Seeking researchers with a PhD or equivalent to perform peer reviews for journals focusing on Autism Spectrum and Neurodevelopmental Disorders. Candidates must have recent publications and strong analytical skills.

Freelance peer reviewers needed for civil, mechanical, and computer science journals. PhD or equivalent required, with at least two publications in the last two years. Strong analytical and writing skills, experience with manuscript review systems preferred.

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Software engineer with 7+ years of Java experience (Spring Boot, Spring Batch, Hibernate, REST API) sought for B2B/freelance contract. Collaborate in agile environment to deliver user-focused solutions. Automate development, testing, and deployment processes.

About the Role This is a freelance role for a Tendem project. 

Strategy consultants with 3+ years of experience at top-tier firms (McKinsey, BCG, Bain, etc.) are needed to build realistic consulting project environments for AI training.

About the Role This is a freelance role for a Tendem project.

, or query optimization Have done any kind of customer-facing technical work — support, consulting, freelance

, or query optimization Have done any kind of customer-facing technical work — support, consulting, freelance

Mindrift seeks a Senior Python Engineer to build realistic developer environments and design tasks for evaluating AI coding agents. Responsibilities include crafting prompts, defining task solutions, and writing tests to verify agent performance. Qualifications require 8+ years of software development experience with Python, JavaScript/TypeScript, Docker, Postgres, Kafka, and Redis, along with experience writing tests.