intern internship English-speaking jobs in Cartagena

Technical Sales Representative for a leading industrial machinery company. Develops sales and manages projects by providing technical support and guidance.

Manage outbound logistics operations for finished vehicle distribution from factory to dealers. Optimize routes, transport modes, and carrier selection. Monitor KPIs, analyze data, and collaborate with sales and distribution teams.

Sales Development Representative will initiate conversations with C-Suite executives and owners of small-to-mid-sized companies to discuss strategic partnerships. Responsibilities include executive outreach, lead qualification, and strategy alignment. Must have 6+ months of experience in an SDR or B2B sales role and professional level English.

Implement and execute PPC strategies across SEM and Paid Social channels. Manage and optimize campaigns in Google Ads, Facebook Business Manager, SA360, and Google Analytics. Analyze performance data to identify insights, improvement opportunities, and growth levers. Build and maintain reports and dashboards in Looker Studio. Collaborate with clients to understand their business needs and translate them into actionable PPC strategies. Continuously optimize campaigns using KPI-driven methodologies, budget management, and testing frameworks. Design and execute tests to improve performance and scalability. Apply AI for advanced data analysis and propose strategic and tactical optimizations.

Event Specialist focused on Hospitality to prepare and execute global tennis tournaments. Requires 2-5 years experience in sports and events, strong communication and organizational skills, and proficiency in MS Office. Must be detail-oriented, adaptable, and able to work independently and as part of a team.

Senior Machine Learning Engineer will design, build, and maintain machine learning pipelines and infrastructure for both conventional and GenAI models. Collaborate with data scientists to integrate machine learning models, including LLMs, into production systems. Develop and maintain data processing pipelines for structured and unstructured data.

European International School of Barcelona seeks a passionate Speech and Language Therapist or Educational Psychologist with native English fluency. The ideal candidate will have experience in educational and clinical speech therapy, working with students with communication and language needs. Responsibilities include assessing, diagnosing, and supporting students with speech, language, and communication disorders, providing therapy in English, leading socio-emotional interventions, and collaborating with a multidisciplinary team.

Inside Sales Representative will provide expert account management, develop relationships with clients and partners, and drive sales growth. Responsibilities include researching new sales opportunities, preparing proposals, and achieving sales targets. Must be proficient in German and have a solid sales background.

As an Assistant Store Manager at Ferragamo's La Roca Village store, you will support the Store Manager in driving sales performance and creating a positive client experience. You will mentor team members, communicate effectively, and contribute to business action plans. Fluency in Spanish and English is required.

Collector responsible for managing invoice collection, resolving customer issues, and ensuring timely payments. Requires 2+ years of experience in credit and collections, familiarity with financial regulations, and proficiency in financial management tools.

Senior Performance Engineer needed for a leading renewable energy multinational group. Manage data sources, analyze asset operation, and propose improvements to power plant generation. Requires a Bachelor's degree, 8+ years of energy industry experience, and advanced English and native Spanish proficiency.

Sales Representative to build relationships with healthcare professionals, promote pharmaceutical products, and achieve sales targets. Requires a bachelor's degree, sales experience, strong communication skills, and proficiency in CRM software.

Senior Quality Assurance Technician to lead and execute process and cleaning validation activities in a pharmaceutical manufacturing site. Requires 5+ years' experience in GMP environments, strong technical documentation skills, and fluency in English and Spanish.

The IB Diploma Programme Coordinator will lead the implementation and development of the IB Diploma Programme at SIS Madrid. Responsibilities include curriculum coordination, IB documentation, and academic leadership of the DP teaching team.

Full Stack Developer will own and develop the API Developer Portal using React, Next.js & TypeScript. Responsibilities include designing testing environments, delivering SDK generation and monetization integrations, and implementing conversational developer support.

Business Developer Trainee to support negotiation of agreements with digital media partners. Assist in monitoring account KPIs, analyzing campaign performance, and conducting market research. Must be a French native speaker with C1 English and fluent Spanish.

Legal Assistant to support international legal team managing subrogation cases. Responsibilities include drafting legal documents, coordinating with clients and insurers, and providing administrative support. Requires fluency in English and Spanish.

Leads and manages technology transfer projects, providing project management, scientific, and technical expertise in quality, technology transfer, and regulatory affairs.

Accountant will prepare bank reconciliations, journal entries, and balance sheet reconciliations. The role requires 2+ years of accounting experience, knowledge of GAAP/IFRS, and proficiency in MS Office and ERP systems. English fluency is required.

Azure Machine Learning Engineer with 5+ years of experience designing, developing, and deploying AI models on Azure. Proficient in Python, PySpark, and ML frameworks (Scikit-learn, TensorFlow, PyTorch). Experience with Databricks, MLflow, and Azure Machine Learning. Solid understanding of data preprocessing, feature engineering, and model optimization.