student English-speaking jobs in Castelló de la Plana

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.

Lead engineering strategy, team, and technical delivery for a fast-growing FinTech company. Define and execute engineering strategy, build scalable systems, and manage a high-performing team.

DXC seeks a Consultative AI Sales Professional to drive growth through net-new client acquisition and expansion of AI-led work. This role focuses on translating client needs into AI-enabled solutions and leading consultative sales cycles.

Senior Software Engineer (Laravel) will maintain and expand Rinkel's backend platform, including invoicing, customer insights, and internal support tools. Responsibilities include designing, building, and maintaining backend services and APIs, integrating with external APIs, and collaborating with frontend developers.

Lead business development and market penetration in Spain for an international software development agency. Manage the full sales cycle, build client relationships, and contribute to the company's commercial strategy in the Spanish market.

Mechanical Design Engineer needed for the design, development, and validation of mechanical systems in Defense and Space applications. Requires a degree in Mechanical, Naval, or Aerospace Engineering and 5+ years of experience. Proficiency in SAP and PLM tools is essential.

Plant Manager to lead manufacturing facility operations, ensuring production efficiency, quality, cost control, and safety compliance. Minimum 8 years manufacturing experience with 3-5 years in a leadership role.

We are currently looking for a Content Reviewer to review and evaluate online content to help improve AI responses and overall accuracy. The role involves checking content quality, correctness, and proper categorization according to project guidelines.

DSP Manufacturing Technician will prepare, control, and develop processes for the production of recombinant proteins and monoclonal antibodies. Responsibilities include operating equipment, conducting chromatographic runs, and ensuring compliance with GMP and safety standards.

Provides quality support to Engineering Teams on process applicability and DOA/POA interfaces. Assures application of standards and tools in RFE, acting as Business Quality Manager for processes across all A/C programs. Drives RFE perimeter in transnational operational projects.

Senior Lighting Designer to lead and deliver lighting design projects from concept to completion. Develop lighting concepts, present to clients, and collaborate with architects and engineers. Requires 8+ years experience, proficiency in design software, and fluency in Spanish and English.

Senior AI Engineer to design, develop, and maintain AI-powered solutions. Expertise in backend engineering, DevOps, and AI frameworks (TensorFlow, PyTorch, BERT) required.

Manages social media strategy and brand positioning for an automotive OEM in Spain. Develops and executes content plans, oversees platform management, and drives lead generation through social media campaigns. Analyzes performance data, manages community interactions, and collaborates with influencers and dealers to achieve brand objectives.

Treasury Specialist will execute daily Treasury operations, including cash position management, payment processing, and bank operations control. Responsibilities include building and maintaining cash forecasts, preparing cash reporting, and supporting funding and refinancing processes. Requires 5+ years of Treasury experience, strong SAP and Sage XRT knowledge, and advanced Excel skills.

Senior Java Backend Engineer to design, develop, and maintain scalable enterprise applications. Experience with Java 17+, Spring Boot, REST APIs, microservices, and Azure cloud services required.

After nearly 50 years of building our brand, we are entering a new phase of global growth and are looking for the right person to help us open the next markets. We design and manufacture innovative outdoor decking systems used in high-end hospitality, residential, and architectural projects worldwide.

Sales Representative to manage inbound leads and convert them into successful projects in the Spanish/Portuguese market. Responsibilities include achieving sales targets, managing the full sales cycle, and providing customer consultation.

Business Analyst (HSE) to define, document, and guide the implementation of a new HSE system for an industrial client. Responsibilities include gathering business requirements, preparing documentation, identifying risks, and supporting implementation activities. Requires 5+ years of experience as a Business Analyst and 2+ years with HSE systems in industrial environments. Strong analytical, communication, and problem-solving skills are essential. Bilingual Spanish & English required.

Embedded Software Engineer to design, implement, and maintain cryptographic libraries for embedded systems. Develop security algorithms and cryptographic primitives for constrained environments. Contribute to the implementation and evaluation of post-quantum cryptography (PQC) algorithms.

Mechanical Engineer / Mechanical Design Engineer to lead and execute the complete mechanical development process, from architecture definition to final design release.