student English-speaking jobs in Castelló de la Plana

Customer Support Agent needed to provide phone, email, and in-person support to clients. Responsibilities include managing client issues, providing information about processes, and coordinating with other departments. Fluency in English and Spanish is required.

Sales Broker needed for energy sector specializing in biomethane commodities. Fluent Dutch and English required. Experience in sales, brokerage, or trading desired. Build customer relationships, identify solutions, and negotiate deals.

The Cybersecurity Site Leader Specialist will manage the Digital Operations deployment roadmap and lead Smart Operation internal projects. Responsibilities include ensuring cybersecurity compliance, managing OT assets, monitoring cyber threats, and promoting the deployment of Digital Solutions.

Sales Representative / Business Developer responsible for developing new business and managing client accounts in Northern Spain and the Central region.

Nuclio Talent seeks a Partner Business Developer for the Italian market. Develop and execute partner programs to generate leads and nurture relationships. Must have sales experience, fluency in Italian, and strong communication skills.

The Nando and Elsa Peretti Foundation seeks a Program Manager to manage the administrative lifecycle of grants, ensuring compliance and reporting. The role involves partner relations, documentation, and portfolio support.

Causality Research Scientist to develop and improve foundational methods in causal inference. Conduct data analysis on observational-longitudinal studies and collaborate with domain experts.

Accounts Receivable Intern will monitor accounts, investigate outstanding debts, contact clients, and process payments. Requires a finance background, English fluency, and knowledge of billing and collection techniques.

Senior Backend Engineer to design, build, and maintain scalable backend systems and APIs for robotic applications. Develop core services, build foundational backend systems, and collaborate with partners. Requires a degree in Computer Science, Engineering, Robotics, or similar, strong experience with APIs, TypeScript, and backend web technologies.

Customer Service Agents provide support to customers via phone, email, chat, and other channels. They resolve issues, ensure customer satisfaction, and contribute to service quality improvement. Native French speakers with 3+ years of customer service experience are required.

Full-Stack AI Native Engineer needed to design, ship, and monitor end-to-end features for a SaaS AI hiring platform. Must have 4+ years of professional software engineering experience, proficiency with Next.js, Python/FastAPI, and experience with AI coding agents and LLMs.

Supports the Director of Revenue Management by providing market information, forecasts, and revenue management strategies. Monitors competitive pricing, conducts competitor analysis, and assists with group bookings and OTA management.

Assembly Technician needed for a leading space engineering and telecommunications company. Responsibilities include operating technical equipment, performing maintenance, fault finding, soldering, and assembling mechanical structures. Requires vocational training in electronics, experience in manufacturing and testing, and strong communication skills.

This Business Analyst role focuses on data mapping, UAT, and defect resolution for new country and compliance requirements. You will ensure smooth system integration and releases. Experience with data mapping, UAT, defect tracking, and working across business, IT, and vendor teams is essential.

MEP Manager to oversee electrical & mechanical works on a large-scale Data Centre project in Madrid. Develop and maintain relationships with engineers, consultants, subcontractors, and suppliers. Lead, supervise, and develop MEP staff. Manage MEP procurement, budgets, quality, safety, engineering, coordination, scheduling, installation, commissioning, and close-out processes.

QuiverTree Media seeks a Key Account Manager to manage and grow strategic airline relationships. This role involves account ownership, internal coordination, client presentations, and project management.

Junior RF Engineer (Chinese) needed for radio network optimization, data analysis, and digital platform maintenance. Must have a science or engineering background, strong logical thinking, and fluency in Chinese.

The Chief Technology Officer (CTO) will lead the company's technology strategy and execution, ensuring alignment with business objectives. This role oversees engineering and development teams, manages technology infrastructure, and drives growth and innovation.

Payroll Administrator needed for UK payroll processing, ensuring timely and accurate payments. Requires 3+ years of hands-on payroll experience, knowledge of UK legislation, and proficiency in SAP Payroll Software.

Lead, manage, and execute Lean projects across the organization. Coordinate and implement process standardization strategy. Build and maintain a process management structure.