student English-speaking jobs in Castelló de la Plana

Lead Backend Tech Lead to drive the technical direction of an FP&A platform. Shape and evolve the architecture, ensuring scalability, reliability, and maintainability. Deep Python (FastAPI) experience in production environments required.

Customer Service Representative will handle incoming customer contacts via phone, email, chat, and other channels. Responsibilities include resolving customer issues, logging call details, and maintaining service and product knowledge. Must be proficient in Dutch and English, have 1 year of customer service experience, and possess working knowledge of IT platforms and applications.

Senior Backend / AI Engineer to build and maintain Python-based backend services, develop LLM-powered features, and design APIs for an AI product.

Senior Data Engineer to design, build, and own scalable data pipelines and architectures in Snowflake. Requires strong Snowflake experience, dbt, SQL, Python, and ELT pipeline development.

Dutch-speaking Interactive Customer Specialist needed for a full-time, on-site role in Valencia. Interact with users in a live environment, creating a positive customer experience. Must be a native Dutch speaker with B2+ English, confident, and comfortable working in a fast-paced, 24/7 setting.

Develops and tests ion, electron, and atomic beam sources. Designs, assembles, and operates plasma diagnostic instrumentation. Executes experiments to verify performance parameters.

Lyra Health seeks a Trilingual Psychologist & Case Manager to provide clinical and emotional support, case management, and conduct clinical evaluations in Spanish, English, and Portuguese. This role requires 3+ years of CBT experience, fluency in all three languages, and a Bachelor's degree in Psychology.

Senior Data Scientist will translate complex datasets into actionable business insights using analytics, data visualization, and statistical modeling. This role requires 5+ years of experience in data analysis, business analytics, or data science, preferably in B2C e-commerce or retail.

Atelier Madre seeks a detail-oriented individual with experience in fast-paced environments to assist in the production of leather bags. The role involves cutting, burnishing, sorting, riveting, and general workshop support. Applicants should be reliable, precise, and efficient with a willingness to learn.

Transforms raw data into usable datasets and visualizations for business users. Develops and maintains ELT pipelines using dbt and Snowflake. Collaborates with data analysts and engineers to optimize data models and ensure data quality. Requires 3+ years of experience in a data-focused role, expert-level SQL skills, and hands-on experience with dbt.

Area Sales Manager to manage LATAM distribution network and develop direct business in the Madrid region. Responsibilities include partner network animation, business reviews, expansion, sales support, and building a customer base in Madrid. Requires 5-15 years of export sales experience, MedTech industry knowledge, and fluency in Spanish and English. Portuguese is a plus.

Customer Service & Asset Specialist to provide support to UK & Ireland customers, managing onboarding, order processing, and issue resolution. Collaborate with internal departments to ensure customer satisfaction and process improvement.

IT Project Engineer to lead the transition of a large-scale Windows Security Patching program from delivery to steady-state operations. Responsibilities include defining the operating model, documenting processes, coordinating knowledge transfer, and managing the cutover strategy. Requires 3-5 years of experience in IT service transition, project coordination, or IT operations in a regulated environment, strong knowledge of ITIL v3/v4, and familiarity with CFR 21 Part 11.

Drive high-impact sales cycles and cultivate executive-level relationships as a Dutch-Speaking IT Sales Representative. You will be responsible for business development, revenue generation, and consultative selling within the SMB sector.

Group-IB seeks a Cyber Threat Intelligence Analyst specializing in phishing. The role involves researching threat groups, analyzing phishing campaigns, and creating detection rules. Requires 4+ years of experience, a cybersecurity-related degree, and knowledge of Python, Bash, and threat intelligence frameworks.

Senior Android Engineer to contribute to a global banking platform. 5+ years building scalable mobile solutions, experience with RSA cryptography, and understanding of reactive programming paradigms required.

Leads and manages a 3-person backoffice team, overseeing the full order lifecycle for B2B clients and bespoke projects. Ensures accuracy in invoicing, documentation, and commercial conditions. Acts as a key link between sales and internal teams. Requires a degree in Business Administration, International Business, or similar, with 5+ years of experience in commercial backoffice/customer service in B2B environments, including team management. Fluent English (C1 or above) is essential.

eXalt Madrid seeks an experienced Digital Sales Manager with ESN background to manage client relationships, identify new business opportunities, and source IT & Digital consultants.

Develop and execute sales strategies for aerial work platforms (AWP) to achieve sales targets. Identify, acquire, and manage key accounts in the AWP industry. Build and maintain relationships with major customers, negotiate contracts, and monitor market trends.

Senior AI Engineer will design and maintain an AI-powered service for intelligent automation. Responsibilities include training computer vision models, integrating OCR and LLMs, and building MLOps pipelines. Requires 4+ years of software development experience, expertise in Detection Transformers, LLMs, and Python.