150 freelance English-speaking jobs in Warsaw

Freelance AI trainer for automotive engineering projects. Design, evaluate, and improve AI solutions using Python. Requires 3+ years of automotive engineering experience and strong Python proficiency.

We’re currently seeking a passionate freelance Senior Android Developer to join our forthcoming projects

For our client – agency at EC we are looking forSenior Software Developer – SharePoint Freelance Opportunity

This is a freelance position, starting no earlier than May 2026, available on-site in Warsaw or remotely

Exciting extra projects and freelance opportunities – expand your skills and experience!

Automotive engineers with Python experience are sought for freelance AI training projects. Tasks include designing automotive engineering problems, evaluating AI solutions, validating results using Python, and improving AI reasoning.

Overview Join to apply for the DevOps in Digital& team (freelance) role at PwC Polska.

We're building a curated network of talented freelance UI Designers that we can call upon for existing

We’re currently seeking a passionate freelance Senior QA Engineer to join our forthcoming projects.

We're building a curated network of talented freelance UX Designers that we can call upon for existing

Freelance AI trainer for electrical engineers with Python experience. Design electrical engineering problems, evaluate AI solutions, and validate calculations using Python. Must have 3+ years of experience and strong written English.

Freelance AI trainer needed to design math problems, evaluate AI solutions, and validate calculations using Python. Requires a mathematics degree, 3+ years of experience, strong Python skills, and excellent written English.

510(k), NDA, ANDA, DMF, depending ondomain).Ability towork independently inapre-sales/ consulting/ freelance

Senior Python Engineer needed for freelance projects. Experience with Python backend development, extending production systems, and designing GxP-compliant services is required. Must have experience with secure authentication, electronic signatures, and database solutions.

Competitive freelance B2B rate (15-30k net, depending on experience).

Netguru seeks a Solution Architect for a full-time, remote position. The role requires expertise in Enterprise Solution Architecture, ERP/Operational Backbone architecture, and Logistics/Supply Chain domain experience.

Netguru seeks a Senior AI Engineer for a 3-month, full-time project. Responsibilities include driving technical decisions, leveraging AI APIs and workflow automation tools, and collaborating with a team to build and iterate on AI-powered solutions. Proven experience launching PoCs, working with LLM/AI APIs, and a solid generalist tech foundation are required.

Freelance job till 31.12.2026 Work as part of an Agile squad delivering the migration of legacy applications

Form of cooperation: freelance project-specific B2B contract with an estimated duration through the end

: Flutter Dart iOS Android Jira Confluence about-project : We’re currently seeking a passionate freelance