78 freelance English-speaking jobs in Lisbon

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.

Freelance AI Evaluation Engineer needed to create challenging coding test cases for AI systems. Requires 5+ years of Python development experience, full-stack development skills, and experience writing functional and integration tests.

Strategy & Corporate Finance Analyst will develop financial models, conduct market analysis, and prepare investment materials to support new products and strategic projects in the energy sector.

Freelance AI trainer needed to design mathematics problems, evaluate AI solutions, and validate calculations using Python. Must have a degree in Mathematics or related field, 3+ years of experience, strong Python proficiency, and excellent written English.

Physics Researcher needed for part-time, project-based AI training. Design physics problems, evaluate AI solutions, and validate calculations using Python.

internet; company‐sponsored benefits such as health insurance and PTO do not apply.Employment Type Freelance

Electrical Engineer with Python expertise sought for part-time, project-based AI training. Design electrical engineering problems, evaluate AI solutions, and validate calculations using Python. Strong written English and 3+ years of experience required.

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.

We do provide more security than a pure freelance contract, as we work with a30-day notice period(on ... ambition to become the #1 B2B Marketing Agency worldwide in the next ten years.Work setup We work with 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 or equivalent and 2+ years of experience.

Portuguese Language Specialist (Portugal) - Freelance AI Trainer Project PortugalAre you a Portuguese

This flexible freelance role allows you to set your own schedule, making it an ideal supplement to your

This freelance, remote role offers complete flexibility, allowing you to set your own business hours.

Graphic Designer – Global Brand – Figma - Porto (Hybrid) Global Designer Brand is now looking for freelance

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

Senior Consultant with 3+ years at a top-tier strategy consulting firm (McKinsey, BCG, Bain, etc.) needed to design and evaluate AI-powered consulting project scenarios.

Flexible, fully remote freelance work that fits your current commitmentsApply your expertise to a rapidly

architecture capability and production delivery experience; Immediate availability for an urgent contractor/freelance

Freelance work.

Hybrid (Lisbon)Software Engineer (Python) - Agentic PlatformFull Stack Django Developer (Fully Remote)Freelance