student English-speaking jobs in Castelló de la Plana

Senior Transaction Manager will manage a portfolio of syndicated loan agencies, bond trustee and security agent mandates. Responsibilities include reviewing documentation, managing transactions, calculating payments, and coordinating with stakeholders. Requires 10+ years of experience in project and infrastructure finance and fluency in English and Spanish.

Senior Java Developer needed for the Digital Euro project. Design, develop, and maintain secure, scalable, cloud-native solutions using Java (JavaEE), Spring Boot, Spring Cloud, and Spring Data.

Freelance Energy Projects Consultant supports the development and execution of energy infrastructure solutions, including microgrids, BESS, and distributed energy technologies. Responsibilities include project development, energy modeling, feasibility analysis, and stakeholder coordination. Requires experience with distributed energy resources, project management, and energy modeling.

Technical Assistant R&D will provide direct support to the Control & Quality laboratory Supervisor. Responsibilities include performing catalytic tests, supporting catalyst development, ensuring reactor operation, collecting and interpreting data, and documenting results.

The Middle Office Intern will support the Energy Management and Trading team in monitoring, controlling, and analyzing trading activities in electricity and environmental markets. The role involves risk reporting, trading controls, and analytical support, contributing to risk management tools and market analytics.

Senior R Developer to migrate SAS applications into scalable R packages, ensuring functional equivalence and contributing to validation processes. Requires a Master's degree or PhD, 7+ years of experience in statistical software development, advanced R programming skills, and experience in SAS to R migration.

SAP Order-to-Cash Business Analyst to support and improve Order-to-Invoice processes in a global SAP S/4HANA environment. Analyzes business requirements, translates them into functional specifications, and coordinates with development teams to deliver system improvements.

Experienced Packaging Manager needed for 2-month contract in Salas, Spain. Provide hands-on leadership and technical support for packaging operations, including case packers, flow packers, cup fillers, and palletisers. Troubleshoot issues and optimize workflow. Basic Spanish skills required.

Product Development Senior Scientist will lead technical execution of projects across veterinary medicines, hygiene, and feed. Responsibilities include managing project timelines, budgets, and specifications, collaborating with cross-functional teams, and ensuring technical documentation accuracy. Requires a degree in a relevant field, 5+ years of experience in pharmaceutical development, and strong communication skills.

Dog Friendly Co. seeks a Social Content Lead to own organic content strategy and execution across platforms like Instagram, TikTok, and YouTube. This role involves developing scalable content formats, managing creators, and driving business impact through content.

R&D Development Engineer will design, execute, and report on mechanical, thermodynamic, heat transfer, and materials tests. The role supports R&D projects, collaborates with teams, and analyzes customer requirements. Requires a Bachelor's or Master's degree in Industrial Engineering or related field, 1-3 years of experience, CAD proficiency (Siemens NX preferred), and V&V tool experience (LabVIEW preferred).

Provides IT support including workstation installation, hardware repair, and software updates. Supports terrestrial laser scanning campaigns, UAV flights, and point cloud processing. Organizes project data and assists with operational coordination.

Account Executive to drive the full sales cycle for a SaaS e-commerce search solution. Requires 2+ years of B2B SaaS sales experience, fluency in German (C2) and English (B2), and strong communication skills.

Diagnostics Engineer to test and validate solutions for electric vehicle battery health using OBD2, CAN bus, UDS, and DoIP protocols.

Designs and implements resilient VMware-based infrastructure architectures across Europe and Latin America. Manages NetApp storage systems and implements observability stacks for monitoring and reliability improvements. Leads deployment and operations of Docker and Kubernetes clusters, automating containerized workloads. Contributes to hybrid and multi-cloud strategies, including GCP, Azure, and on-premise environments.

Content Enablement Specialist will manage end-to-end content intake, validation, and preparation for submission. Coordinate across teams to ensure timely content progression and monitor jobs through all workflow stages. Support content calendars, campaign execution, and global content timelines. Manage content lifecycle, including version control, renewals, expirations, and archival. Support onboarding of external agencies and contribute to continuous improvement of content operations processes.

Technical Aerothermal Engineer sought for a leading renewable energy platform in Spain. Core responsibilities include providing technical expertise during sales, developing B2B opportunities, designing solutions, and managing projects. Requires engineering degree, experience with aerothermal systems, and some commercial experience.

Lead the strategic vision for Stuart's global delivery engine, bridging business goals and execution. Manage a multidisciplinary team across the UK, France, and Poland, ensuring operational excellence and a "1% better every day" mindset. Drive automation, supply-demand management, and BPO partnerships to scale operations sustainably.

Senior Product Manager to own vision, strategy, and roadmap for a core product area. Requires experience in data-informed decision making, customer insight, and market research. Proven ability to lead cross-functional teams and influence stakeholders. Strong communication skills essential.

Data Analytics Intern to gain hands-on experience with data, analytics tools, and digital solutions. Support data pipelines, dashboards, and integrations. Collaborate with teams in Spain and China. Fluent in English, Spanish, and Chinese required.