student English-speaking jobs in Castelló de la Plana

Data Analyst needed for a foundation focused on innovation and R&D. Responsibilities include defining, monitoring, and analyzing KPIs to evaluate product and service performance. Experience with large datasets, Python, and Power BI is required. Fluent English is essential.

HR Business Partner within the Organization/IT team. Collaborates with HR and IT to define and integrate new functionalities in HR processes. Acts as the end-to-end coordinator of HR initiatives, translating business needs into system and product requirements. Manages the HR product backlog, defines and executes testing activities, and provides user training and support.

Senior Optimization Engineer needed to architect and deploy advanced nonlinear optimization engines. Responsibilities include designing custom algorithms, translating multi-physics phenomena into optimization problems, and customizing solver behaviors. Requires a PhD in a relevant field and deep knowledge of nonlinear optimization theory, programming languages (Julia, C++, Python), and large-scale solvers.

Lead the delivery of mobile applications for premium brands, combining iOS expertise with end-to-end ownership, team leadership, and technical execution. Define architecture, manage the mobile roadmap, and partner with cross-functional stakeholders.

Manages daily HR operations including recruitment, payroll, employee relations, onboarding, training, and compliance. Ensures HR processes are consistent and compliant. Supports the COO in maintaining a positive and efficient work environment.

Full-time hybrid Night Drinks Host for Drink Home Ibiza, a premium beverage delivery service. Responsibilities include taking and managing drink orders, ensuring timely delivery, and assisting customers via WhatsApp, calls, and app.

Leads all operational areas of a fully integrated production facility, ensuring safe, efficient, and high-quality production. Manages plant P&L, develops budgets and production schedules, and champions cost optimization and continuous improvement initiatives. Requires a Bachelor's degree in Industrial Engineering and 8+ years of experience leading operations in manufacturing, ideally within highly regulated industries.

Provide customer support for the evoke brand across multiple communication channels. Resolve customer issues, collaborate with internal departments, and ensure a positive customer experience while adhering to regulatory standards.

Full-Stack Application Developer will design, develop, and maintain applications for Tier-1 telecommunications operators. Responsibilities include contributing to the functional and non-functional aspects of the application lifecycle, collaborating with international teams, and applying software engineering best practices. Required skills include Java EE, Spring Boot, Angular, Git, Jira, Docker, and Kubernetes.

Support the Defense-AMP team in defining, piloting, and administering security solutions for CIB EMEA. Collaborate with the PSIRT to ensure alert relevance and drive remediation. Maintain malware protection tools, ensure 100% AV/EDR coverage, and automate tasks.

The Engineering Manager leads and develops a team of 20 engineers, ensuring the execution of multiple concurrent R&D projects. Responsibilities include project planning, resource allocation, team management, and communication with customers and stakeholders.

The Labour Relations Manager is responsible for shaping and executing the labour relations strategy in Iberia. This role manages negotiations with unions, ensures compliance with labour law, and advises senior leadership on labour relations matters.

Provides 1st and 2nd line eTrading support for Bonds, Inflation linked, and Swaps products. Resolves incidents, manages user requests, and collaborates with development and platform teams. Requires strong Fixed Income knowledge, experience with ION Marketview and TOMS, and capital markets support background.

Junior RF Engineer (Chinese) needed for radio network optimization, data analysis, and digital platform maintenance. Must have a science or engineering background, strong logical thinking, and fluency in Chinese.

Senior CCM & CXM Integration Architect needed for enterprise-grade customer communication solutions. Design, integrate, and support OpenText Exstream (SB & CN) architectures in complex, cloud-based environments.

Provide customer service support to dealers and end users via phone and email, resolving technical issues and product inquiries. Collaborate with internal teams to address complex cases and maintain accurate customer records.

As a Test Development Engineer, you will design, develop, and implement Automated Test Equipment (ATE) and test programs to ensure product quality. You will specialize in either hardware or software, focusing on test architecture, development, and integration. Responsibilities include solution architecture, end-to-end development, strategic planning, debugging, and technical representation.

Technical Engineering Director to lead complex ML and LLM projects, translating customer needs into scalable solutions. Oversee end-to-end project delivery, mentor engineering teams, and act as a technical advisor to clients. Requires strong experience with LLMs, applied Machine Learning, and Python.

QuiverTree Media seeks a Key Account Manager to manage and grow strategic airline relationships. This role involves account ownership, internal coordination, client presentations, and project management.

Causality Research Scientist to develop and improve foundational methods in causal inference. Conduct data analysis on observational-longitudinal studies and collaborate with domain experts.