student English-speaking jobs in Castelló de la Plana

Laser Development Engineer needed for R&D team focused on cutting-edge laser system design, optical engineering, and photonics product development.

Leads a team of 2 Regulatory Associates in managing registration procedures for generic medicines in Spain. Manages existing registrations, translates product information, and communicates with local authorities. Requires a university degree in a relevant field and 3+ years of experience in pharmaceutical registrations.

Lead and deliver strength & conditioning programs for 60 international junior golf students. Design individualized training plans, oversee injury prevention, and integrate golf-specific training.

Product Influence & Repairability Engineer will conduct technical and economic repairability studies, analyze compliance with After-Sales requirements, and participate in defining repairability requirements for new models and technologies.

GBSB Global Business School seeks part-time lecturers to teach business courses in Barcelona. Applicants must have a Master's degree, strong English skills, and experience designing and delivering curriculum-based instruction.

Drive and scale B2B SaaS sales for a leading hospitality tech startup, targeting major European hotel chains. Manage an ARR target of approximately €30k/month and secure high-value deals.

Personal Assistant to the CEO providing high-level support for both professional and personal matters. Manage global travel, calendar, communications, and administrative tasks. Must be highly organized, proactive, and able to thrive in a fast-paced environment. Requires 3+ years of experience in a similar role, fluency in English and Spanish, and a valid EU driver's license.

Researcher to implement new processes and techniques for battery manufacturing in a pilot plant. Responsibilities include electrode and cell manufacture, electrochemical characterization, machinery maintenance, and project management. Requires knowledge of R&D in battery systems, manufacturing processes, quality control, and project coordination.

Information Security Architect needed to define and support application security requirements throughout the project lifecycle, with a focus on threat modeling. Responsibilities include conducting security reviews, assisting project teams, and ensuring compliance with security guidelines and regulations. Requires 5+ years of experience in security, strong technical knowledge, and relevant certifications.

Lead Hardware Engineer to drive hardware development lifecycle for electric aviation propulsion systems. Responsibilities include team leadership, system architecture, and coordination across multidisciplinary teams. Requires experience in EMI/EMC testing, LTSpice and MATLAB, and leading technical engineering activities.

Plaza Premium Group seeks a Sales Manager to drive brand awareness and revenue growth for their Madrid lounge. The role involves developing and executing marketing and sales strategies, managing social media, and building relationships with key clients. Requires a Bachelor's degree, 7+ years of experience, 3+ years in a managerial sales role, and proficiency in English and Spanish.

Intermediate Project Engineer for Logistics and Industrial Projects. Manages projects from planning to execution, including feasibility, preparation, and realization phases. Requires a degree in Civil or Industrial Engineering, 6-10 years of experience, at least 4 years in logistics, and experience with projects valued at 15-20 million.

Senior ALM, Structural and Treasury Risk Consultant to join a specialized business risk & CIB team. This role involves consulting projects on asset-liability management (ALM), banking book market and liquidity risk, and developing new solutions on FTP and treasury risk monitoring and management.

Business Development Manager to drive growth by identifying new retail clients, generating leads, and closing deals. Manage the full sales cycle, build relationships, and contribute to revenue targets. Requires 2-5+ years of experience in business development, sales, or a similar role (preferably in SaaS or retail tech). Fluency in English is required, native-level Spanish is preferred.

Senior UX/UI Designer will lead the full design process for digital products, applying Lean UX principles and collaborating with stakeholders. Responsibilities include designing user journeys, wireframes, prototypes, and AI-enabled features. Requires several years of experience, a design portfolio, and proficiency in design/prototyping tools. Strong analytical skills, user research capability, and understanding of AI/ML in product design are essential.

Associate/Senior Associate to join a Madrid-based private equity team focused on Spanish transactions with selective international exposure. Support investment lifecycle from sourcing to exit, including deal origination, due diligence, execution, and portfolio monitoring.

Senior Business Developer to identify and engage European startups and research institutions seeking EU funding. Generate new business opportunities and build relationships across the innovation ecosystem. 3+ years of experience in business development, strong negotiation skills, and fluency in English required.

Life Science Project Manager to lead the development and implementation of healthcare technology projects from conception to delivery. Responsibilities include translating customer needs into actionable specifications, ensuring project success within time and scope constraints, and providing clinical, technical, and regulatory guidance to customers. Must have strong knowledge of Good Clinical Practice (GCP) and clinical research regulations, proven project management experience in software medical device development, and deep understanding of the health industry.

Junior Project Coordinator to assist with coordinating Central Lab projects, client communication, sample logistics, and documentation. Requires a Life Sciences background, project coordination experience, and proficiency in MS Office.

Senior Network Security Engineer needed for long-term assignment. Manage Palo Alto firewalls, configure and maintain LAN/WiFi environments, and configure AWS cloud instances. Requires experience with Cisco networking, AWS networking, and Palo Alto firewalls. Must have strong troubleshooting and communication skills in Spanish and English.