6839 English-speaking jobs in Barcelona

Senior Python Developer needed for project-based AI work. Experience with pytest, Docker, Linux, Bash, and LLMs (e.g., Claude Code, Roo Code) required. Must be able to read and understand code in C, C++, Rust, or Go. 5+ years of software engineering experience primarily in Python. English proficiency (B2 or higher) is required.

Freelance Machine Learning Engineer needed to design computational STEM problems requiring Python programming and non-trivial reasoning. Must have 5+ years of experience, a portfolio of projects, and expertise in Python, statistics, machine learning, SQL, and GenAI technologies.

Freelance AI trainer needed to design computational engineering problems requiring Python programming and numerical methods. Must have a degree in Electrical Engineering or related field and 2+ years of experience. Strong written English (C1+) is required.

Bioinformatics & Python Specialist needed for part-time, project-based work with leading tech companies. Design computational biology problems requiring Python programming and bioinformatics expertise.

Senior Python developer needed for remote project-based AI code migration and testing. Requires 5+ years of Python experience, pytest expertise, Docker proficiency, and Linux/Bash scripting skills. Must be able to read and understand code in multiple languages (C, C++, Rust, Go) and utilize LLMs (Roo Code, Claude) for development.

Freelance AI trainer needed to design and develop computationally intensive financial problems requiring Python programming. Must have a degree in Finance, Mathematics, or related field and 2+ years of experience. Strong written English (C1+) required.

Freelance AI trainer needed to design and develop computationally intensive statistical problems requiring Python programming. Must have a degree in Statistics or related field, 2+ years of experience, and strong written English.

Freelance AI trainer needed to design computational biology problems requiring Python programming. Must have a biology degree, Python proficiency, and experience with biological data analysis and algorithms.

This temporary contract position supports payroll functions for various countries. Responsibilities include processing payroll, managing salary information, and addressing payroll-related inquiries. Experience in payroll/HR, proficiency in English, and MS Office applications are required.

Executes data governance activities across Galderma's organization for assigned data scope. Supports implementation of data governance roadmap, acts as first-line support for Global Product Master Data, and collaborates with business owners to enhance data quality. Defines data standards, manages data dictionary, and oversees data change requests.

Senior React Native Engineer to join a mobile engineering team focused on providing a smooth user experience. Responsibilities include ideating, crafting, and deploying interactions and experiences for customers. The ideal candidate has experience in React Native and a deep understanding of its mechanics. Must be a team player, customer-centric, and comfortable communicating in English.

Senior React Native Engineer to join a mobile engineering team focused on providing a smooth user experience. Responsibilities include ideating, crafting, and deploying interactions and experiences for customers, participating in team objectives, and contributing to the continuous improvement of the app's technology, infrastructure, and architecture.

Design System Architect needed to lead and scale a company-wide design system. Responsibilities include defining architecture, tooling, documentation, and implementation plans. Will design and implement AI Skills, build tools connecting Figma to code, and partner with design, frontend, and product teams.

Design System Architect will own the architecture of the company-wide design system, evolving it from components to a product infrastructure. Responsibilities include defining technical architecture, tooling, documentation, governance, and implementation plan. Will design and implement AI Skills, build tools and plugins connecting Figma to code, and develop evaluation frameworks. Partner with design, frontend, and product to ensure pixel-perfect execution at scale.

The EMEA Channel Marketing Manager will develop and execute channel marketing strategy across EMEA, prioritizing markets, partners, and investments based on regional business goals. Responsibilities include planning and executing channel-led demand programs, managing co-op and MDF budgets, and driving channel marketing moments. The ideal candidate will have 5+ years of B2B marketing experience with a focus on channel and partner marketing.

ENGin pairs English-fluent volunteers with Ukrainian learners for weekly online conversation practice. Volunteers provide conversational English support and cultural exchange.

Civil, Aeronautical, or Industrial Engineer with a specialization in Data Science and Advanced Analytics sought for a consulting role. Responsibilities include collaborating on projects, providing solutions based on data analysis, and presenting findings to clients. Professional English proficiency and travel availability required.

ALG seeks a Consultant to collaborate on transportation and infrastructure projects globally. Responsibilities include providing solutions, analyzing data, presenting findings, and assisting with business strategies. Successful candidates will have a Bachelor's or Master's degree in Aeronautical, Civil, or Industrial Engineering, proficiency in English, and availability to travel.

The Marketing Operations Specialist – North & East builds and manages operational systems for scalable marketing across multiple HubSpot instances. This role ensures CRM structures, automation workflows, tracking frameworks, and reporting logic are implemented effectively and scaled. Responsibilities include managing HubSpot instances, building and maintaining governance frameworks, implementing GTM tags and GA4 events, and developing reporting infrastructure. The ideal candidate has +3 years of experience as a Marketing Operations Specialist, experience with HubSpot, Google Tag Manager, and Google Analytics, and strong problem-solving and communication skills.

Drive data-informed decision-making across global HR Operations. Analyze service performance, identify trends, and deliver actionable insights to enhance service quality, efficiency, and employee experience.