student English-speaking jobs in Castelló de la Plana

This is a fixed-term contract until July 2026 for a Machine Learning Platform Engineer to design, deploy, and operate production-grade machine learning and AI systems. Responsibilities include deploying models, building automated pipelines, and improving reliability and performance of ML services. Strong Python engineering background and experience running production services on cloud platforms are required.

FLUZO seeks a Sales Representative to develop and execute sales strategies for the UK market. The ideal candidate will have at least two years of B2B sales experience, preferably in advertising, and a network of UK advertisers and media agencies. Fluency in English and Spanish is required.

Provides on-site desktop support, troubleshooting and resolving hardware, software, and network issues. Experience with Windows operating systems, Microsoft Office Suite, and Cisco Jabber required.

Lead and evolve the QA strategy across 35+ teams, encompassing all levels of testing. Build automation infrastructure, promote automation-first approaches, and manage a group of QA Managers.

Experienced Restaurant Manager needed for luxury lifestyle brand COYA Ibiza. Minimum 3 years' experience in a similar role, strong people management skills, and familiarity with lifestyle brand concepts are required. Must have excellent communication skills, be fluent in Spanish and English, and possess a passion for working with people.

This hybrid role in Barcelona offers flexibility for remote work. The Immigration Specialist will manage immigration processes, including visa applications, work permits, and compliance with immigration policies.

Leads the Supply Chain Transformation PMO, partnering with the Head of Supply Chain to drive strategic initiatives and optimize warehouse management in Europe. Manages project execution, risk mitigation, and collaboration with global teams. Requires a Bachelor's degree in a relevant field, PMP certification, and experience in supply chain transformation projects. Fluent in English and Spanish is mandatory.

QA Automation Engineer (Mobile - Kotlin & Swift) will design, develop, and maintain automated test scripts for mobile applications. Collaborate with cross-functional teams to ensure high product quality and participate in test planning, execution, and reporting within agile environments.

Senior Underwriter to lead the development of a new Renewable Energy underwriting practice. Develop business strategy, underwriting processes, and product offerings. Analyze underwriting submissions, build a book of business, and drive new business growth. Requires experience in Renewable Energy, Power/Energy, or related specialty underwriting. Fluent English & Spanish.

Provides day-to-day desktop support, troubleshooting hardware, software, and application issues. Resolves customer issues and documents steps taken. Requires 2-4 years of IT experience, Windows 10-11, Active Directory, and MS Office 365 knowledge.

Platform/DevOps Engineer will design, build, and operate distributed systems in AWS. Manage and optimize Kubernetes clusters, implement infrastructure as code with Terraform, and automate processes.

The Biorepository Technician will maintain, develop, and implement protocols within the Biorepository team. Responsibilities include sample reception, quality control, aliquot preparation, and data management. The successful candidate will have at least 3 years of experience in molecular biology laboratory techniques and 1 year of experience with LIMS databases.

Software Engineer for CRM Marketing Automation on Salesforce Marketing Cloud. Design, develop, and maintain backend systems and services for global platforms. Collaborate with engineers, product managers, and stakeholders to define requirements and prioritize feature development.

Maintains high-performance PostgreSQL databases, ensuring reliability, availability, and scalability. Designs, implements, and optimizes database solutions, collaborating with development teams and managing security controls.

Senior React Developer will develop, maintain, and optimize React-based front-end applications. Responsibilities include building reusable UI components, working with JavaScript and TypeScript, implementing testing strategies, and collaborating with cross-functional teams.

General Health Psychologist specializing in pediatrics and early intervention needed for a team supporting children aged 3-12. Responsibilities include assessment, diagnosis, treatment, and family therapy. Must be fluent in English.

DevOps Engineer will develop and maintain operational systems, automate workflows, and integrate platforms. Responsibilities include building automation scripts, dashboards, and integrations, supporting KPIs and SLAs, and ensuring compliance with security standards. Requires 5+ years of experience in DevOps, systems engineering, or data engineering with strong scripting and querying skills.

Leads a global, 24/7 cyber defense and security operations function spanning IT and OT environments. Sets the long-term vision for the Cyber Defense Centre while ensuring seamless day-to-day security monitoring, detection, and incident response. Accountable for service quality, tooling strategy, KPIs, budget ownership, and development of cyber professionals. Represents the CDC internally and externally, contributing to enterprise-wide security initiatives and engaging with the wider cybersecurity community.

Sales Development & Specification Specialist to expand distribution network and specify products within architecture and design firms.

Client Advisor needed for part-time position (20 hours/week) at the Madrid Las Rozas store. The role focuses on providing exceptional customer service, building client relationships, and driving sales. Proficiency in Spanish and English is required. This position is directed towards people with disabilities.