intern internship English-speaking jobs in Cartagena

Sales & Technical Account to grow Food Ingredients business in Spain. Manage full sales process, build client partnerships, and identify new business opportunities. Proven sales experience in food ingredients, nutraceuticals, or chemical raw materials required.

Junior Account Manager to manage relationships with business partners, support client needs, and ensure partner satisfaction. Assist with onboarding, track performance, and identify growth opportunities.

Regional Sales Manager to drive growth of workflow automation and print software solutions across Spain. Manage the full sales cycle, build relationships with printing industry clients, and represent ECO3 at industry events.

As a Sales Development Representative, you will attract new customers by making initial contact, educating them on Red Points' solutions, and arranging qualified meetings. You will collaborate with Account Executives to source accounts, manage your pipeline in Salesforce, and drive deal progression.

Senior Biostatistician Consultant will lead projects including ITC, Network Meta-Analysis, clinical trial data analysis, and Real World Evidence studies. Responsibilities include interacting with clients, identifying methodological solutions, leading project implementation, and providing management and technical support to team members. Requires an advanced degree in Statistics, Biostatistics, or Epidemiology, 4+ years of relevant experience, proficiency in R or SAS, and strong knowledge of statistical methods.

Design and build the multi-agent orchestration framework for a memory substrate that allows AI agents to remember, reason, and act. Own the hybrid retrieval system combining vector search, knowledge graphs, and temporal decay models. Translate product vision into production agent architectures. Build and evolve the integration layer enabling Memorae to act as the memory substrate for third-party AI agents. Define evaluation frameworks and observability infrastructure for a probabilistic and context-dependent system.

Senior Project Planner needed for a data center project in Madrid. Develop and maintain schedules for pre-construction, construction, and commissioning. Requires 5+ years of experience with Primavera P6, Earned Value Management, and Excel.

Manage a development office, present properties to clients and agents, conduct tours, and deliver sales at an exclusive Estepona development.

Key Account Manager will manage relationships with key distributors and customers, oversee financial management of the Fresh-Cut business, and lead the end-to-end Fresh-Cut operation.

Leads and coordinates all warranty-related activities at rolling stock maintenance depots. Manages the warranty activities at the customer's depot and leads the internal warranty team. Oversees fault diagnosis, issue resolution, and repair validation. Coordinates with the warranty team, project team, and external suppliers.

Coordinates domestic and international inbound and outbound shipments, ensuring timely and cost-effective deliveries. Manages transport orders, communicates with carriers and stakeholders, and resolves operational issues. Analyzes transport data, tracks costs, and supports continuous improvement initiatives.

Country Services Director for multinational company providing engineering, architecture, and civil engineering solutions. Requires proven experience in business management, team leadership, and service delivery within a multinational environment.

Telecommunication/electrical engineer to coordinate subcontractors, integrate measuring devices, and maintain electronic systems. Requires an engineering degree, knowledge of energy and communication management, and experience with cabinet design and assembly.

Lead system engineering and architecture of innovative automotive systems, translating customer needs into specifications and system documents.

Sales Executive to join a fast-growing real estate developer in the Murcia region. Fluent English and Dutch required. Experience in a commercial or sales role is necessary.

Plan and deliver English lessons tailored to student needs, fostering a positive learning environment. Requires a Bachelor's degree in Education or related field, specialized English teaching training, and native or fluent English proficiency.

Senior Designer to elevate sportswear and technical outerwear into fashion-forward products. Interpret concepts, research trends, and collaborate with the Activewear team to develop new collections. Requires 5+ years of experience, strong fashion awareness, and excellent communication skills.

Coordinate and conduct clinical research studies, ensuring compliance with protocols, GCP, and regulations. Recruit, screen, and enroll patients, obtain informed consent, and administer investigational drugs. Monitor participants for adverse events and maintain accurate documentation.

Review and quality-check annotations, gradings, and evaluations for LLM and multimodal projects (text, image, audio, and/or video). Validate annotations and ratings against project guidelines and quality standards. Identify errors, inconsistencies, and potential biases in annotated data and AI-generated outputs. Provide feedback to annotators and collaborate with Quality Management and project teams to improve QA processes.

Lead and coordinate an operations team, optimize workflows, and ensure client satisfaction. Manage team tasks, assign cases, oversee payments and communications, and monitor KPIs.