student English-speaking jobs in Castelló de la Plana

Solution Specialist will work with small and medium-sized companies, maximizing up-sell and cross-sell opportunities. Responsibilities include presenting cloud solutions, providing technical product overviews, and conducting trainings. Requires proficiency in Swedish and English, 3-6+ years of technology sales or business development experience, and a minimum Fundamentals certification.

Support the onboarding and delivery of global accounting and compliance engagements. Assist with proposal coordination, transition activities, and performance tracking.

Junior QA Engineer will design, execute, and automate test cases for embedded system products (eSIM) in R&D. Responsibilities include identifying and tracking bugs, ensuring test coverage, and collaborating with development teams to resolve issues.

Senior Cloud Security Operations Engineer will drive detection, hardening, incident analysis, and response across cloud, CI/CD, and on-prem environments. Responsibilities include building security tooling, implementing hardening strategies, monitoring alerts, and collaborating with IT and Engineering. Requires extensive experience in Cloud Security / SecOps, AWS / Azure, Terraform, Kubernetes, and modern cyberattack techniques.

Leads ad creative strategy across Meta, TikTok, and emerging platforms, translating data into creative briefs and driving high-velocity iteration.

Software Engineer (Full-Stack) will design and implement backend services for signal ingestion, processing, and execution. Responsibilities include building and maintaining event-driven, distributed systems, working with AI-powered workflows, and developing frontend dashboards. Requires 3+ years of experience as a software engineer (full-stack) with strong experience in React + TypeScript and Node.js.

Senior Infrastructure Engineer to design and improve core infrastructure architecture across Azure, on-prem network, and security. Define standards, guardrails, and reusable patterns. Collaborate with internal teams and stakeholders to align technical decisions.

Deploy cutting-edge ML/LLM models to Fortune Global 500 clients. Employ automation tools to enhance ML/LLM processes. Establish monitoring systems to track model performance and address issues. Collaborate with Product, DevOps, and research teams to optimize model performance. Manage cloud infrastructure for Large Language Model workloads.

The Category Manager delivers best-in-class category leadership with customers to drive growth and engagement. The role leverages market, shopper, and customer insights to identify category growth opportunities and executes these through strategic category plans. The Category Manager collaborates with customers, sales teams, and internal stakeholders to achieve mutual, profitable, and sustainable category growth.

Manages clinical trials from feasibility through delivery, providing leadership and oversight to CRAs and functional teams. Ensures projects are executed on time, within budget, and in accordance with regulations.

Leads IT infrastructure and application support teams in a hybrid environment. Manages live services, incident response, and operational discipline. Requires experience in IT infrastructure operations, leadership, and ITIL.

We’re Hiring: Accounts & Administrative Officer for a leading yacht service company! Based in Mallorca, the company is looking for an Accounts & Administrative Officer to support the financial and their administrative operations.

Senior Sales Manager for events and exhibitions. Drives new business, manages client relationships, and closes high-value projects. Requires proven experience in events and exhibitions sales, B2B sales, and strong communication skills.

The Manager, Digital Sales develops and executes sales strategies to drive revenue growth across distribution channels. This role provides leadership to sales teams, manages relationships with key customers and partners, and identifies new market opportunities. Requires a Bachelor's degree, 7+ years of B2B software sales experience, and proven success in exceeding sales objectives.

Field Service Engineer to support European clients. Responsibilities include device maintenance, on-site and remote issue diagnosis and resolution, installation, and documentation development. Requires a degree in a relevant field and at least three years of 2nd level field support experience.

Senior/Lead Game Artist to create concepts and final assets for a high-energy casual mobile game. Responsibilities include market research, cross-team collaboration, and hands-on art creation. Requires strong 2D and 3D production skills, Unity experience, and a proven portfolio.

Clinical Evaluation Specialist to develop and create clinical documents per EU MDR. Responsibilities include conducting literature reviews, writing Clinical Evaluation Reports, and supporting clinical evaluation strategy. Requires 3+ years experience in medical device clinical evaluation under EU MDR 2017/745.

Investment Analyst to support private equity investments in technology-enabled financial businesses. Responsibilities include financial analysis, valuation, company research, and portfolio monitoring. Seeking recent graduates or those graduating in 2026 with strong analytical skills and interest in finance and technology.

Manages the Group's Climate Action Plan and Decarbonization and Energy Transition plans. Develops and implements decarbonization strategies for facilities and supply chains. Calculates and manages GHG emissions, including Scope 3 calculations. Collaborates with stakeholders to gather data and identify decarbonization opportunities. Leads the Technical Workstream on 'Environmental Stewardship – Energy and Emissions'.

Part-time Receptionist needed for a growing aparthotel company. The Guest Services Advisor will be the primary point of contact for guests, providing exceptional customer service and ensuring a seamless stay.