556 English-speaking jobs in Barcelona

As Product Director for Hole.io, you will lead a team of 25+ people, shaping and executing the product vision for this top-performing mobile game. You will define the product roadmap, own prioritization and planning, and drive strategies to increase player engagement and lifetime value. You will also manage and mentor the analytics team, lead A/B testing, and monitor key performance indicators.

Design and implement in-game economies for Cup Heroes, including currencies, upgrade systems, and monetization. Collaborate with game designers to create balanced meta systems and optimize economic systems through A/B testing.

Senior 3D Artist to create visual foundations for puzzle games. Responsibilities include creating 3D models, textures, and materials, defining art standards and pipelines, and collaborating with multidisciplinary teams. Requires 5+ years of experience as a 3D artist, expertise in 3ds Max and ZBrush, and strong knowledge of Unity.

BeReal’s Sales Manager will design and execute the Spanish sales strategy, selling ad inventory to agencies and brands. This role involves identifying, pitching, negotiating, and managing digital advertising revenue.

Product Lead to drive success of Paper.io 2, focusing on live operations, economy systems, and feature optimization. Collaborate with a team to maximize player engagement and business growth.

Technical Artist to join the Hole.io Live Studio team at Voodoo. Optimize game assets, shaders, and rendering pipelines for mobile performance. Develop tools and scripts in Unity to streamline workflows. Collaborate with designers, artists, and developers to enhance visual quality and player experience.

Senior UI/UX Artist to design and build the visual style of puzzle games. Will create UX flows, UI assets, and maintain the product's UX/UI framework in Figma. Requires 4+ years of UI art experience and 2+ years of UX design experience.

Supervises the installation and maintenance of Steam Turbines, ensuring quality and safety standards. Implements maintenance activities, reviews tooling, coordinates logistics, and leads a team. Troubleshoots turbine and auxiliary systems, prepares reports, and mentors team members. Requires a technical degree or equivalent experience, strong mechanical maintenance skills, and proficiency in English.

Senior Full-Stack Engineer will design, develop, and maintain cloud-native software solutions. Responsibilities include building backend microservices, developing web interfaces, and ensuring quality through automated testing and CI/CD pipelines. Collaboration with architects, data scientists, and cloud specialists is essential.

Lead the design and implementation of intelligent solutions for energy management. Apply advanced data science techniques to real-world problems and develop reusable AI/ML components. Ensure deployed models are robust, scalable, and production-ready. Guide junior engineers and align technical execution with platform strategy.

VF is seeking sales associates with two years of experience in fashion retail. Successful candidates will have a customer-focused approach, sales orientation, and proficiency in English.

Smadex seeks a Programmatic Account Manager to lead and develop a client portfolio across Europe. The role involves managing strategic partnerships, identifying growth opportunities, and optimizing user acquisition campaigns. Requires 1+ year of mobile programmatic experience, strong communication skills, and analytical expertise in mobile app marketing metrics.

Senior Machine Learning Engineer will develop, maintain, and optimize the creative selection recommendation engine. Requires 5+ years of experience in data science/machine learning, proficiency in Python, SQL, and Statistics, and hands-on experience in adtech, recommender systems, or marketplaces.

Smadex, a leading mobile ad-tech company, seeks ambitious Machine Learning Interns to develop algorithms and manage datasets. Experience in Python, SQL, and data warehousing is required. Fluency in English is essential.

Senior Data Analyst to analyze mobile user behavior data and influence product and ML strategies. Requires 3+ years of experience, a quantitative degree, and proficiency in Python, SQL, and statistical concepts.

Cyber Security Engineer to safeguard programmatic infrastructure. Architect and deploy cloud-native security protocols, design automated threat detection, and manage vulnerability assessments. Secure software supply chain, partner with engineering teams, and lead incident response efforts.

Junior Python Developer will work on algorithmic decision-making, generating alarms, dashboards, and reports. Develop new features, measure performance, and improve pipelines. Analyze data and provide insights to stakeholders. Requires a Bachelor's or Master's degree in Computer Science, 1+ years of Python programming experience, and proficiency in object-oriented programming and testing.

Data Scientist to bridge theoretical model design and real-world production. Analyze algorithms in a high-frequency auction ecosystem, monitor performance, and design experiments to improve bidding strategies. Requires a strong quantitative background, Python, SQL, and familiarity with ML architectures.

Senior Client Success Manager will lead and develop a portfolio of clients across Europe, focusing on growing partnerships and optimizing user acquisition campaigns. Responsibilities include identifying growth opportunities, translating data analysis into clear communications, and representing Smadex externally. Requires 3+ years of mobile performance-based user acquisition campaign experience and strong communication and analytical skills.

Leads the full lifecycle of STS automation products, defining scope, shaping modernization capabilities, and ensuring seamless integration with equipment. Manages product roadmap, OEM relationships, and translates operational needs into technical blueprints. Collaborates with terminals, product teams, and deployment groups to deliver solutions that meet value objectives. Ensures product safety, compliance, and integrity during deployment. Collects and implements user feedback to drive continuous improvement.