intern internship English-speaking jobs in Cartagena

Leads strategic relationship with a global talent solutions partner, driving new client acquisition and growth in existing accounts. Designs and executes commercial strategy for high-value B2B solutions, managing international coordination and commercial alignment.

Senior Designer to join the Activewear Department at Oysho in Tordera, Barcelona. Responsibilities include interpreting concepts, researching trends, and designing sportswear collections. Must have 5+ years of experience in a similar role, a strong understanding of fabrics and construction, and excellent communication skills. Fluency in English is required.

Experienced Buyer Agent to work inbound leads, close deals, and earn commission (30%-65%) on property sales in the Costa del Sol. Requires 2 years of real estate experience on the Costa del Sol and fluency in English.

Trina Solar seeks a Pre-Sales Engineer to support international projects. The role involves technical client interaction, project scope definition, design document preparation, and cost estimation. Minimum 2 years' experience in proposals, structural, or mechanical engineering is required. Strong English communication skills and proficiency in 2D design tools are essential.

Project Director for Power EPC projects with over 15 years of experience, including at least 5 years in power plant execution. Responsible for managing project execution, ensuring cost, schedule, quality, and HSE targets are met. Requires a BSc in Industrial Engineering or equivalent and willingness to travel internationally.

Lead BIM projects, ensuring on-time and on-budget delivery while acting as the primary client contact. Manage the project lifecycle, identify growth opportunities, and demonstrate the ROI of BIM workflows.

Infrastructure Engineer will build and maintain automated infrastructure solutions, integrate APIs, and ensure operational efficiency. Experience with scripting, automation tools, monitoring solutions, and identity management is required.

International Product Manager will work in a global environment, collaborating with Area and Store Managers to implement commercial strategies. Responsibilities include analyzing sales data, identifying opportunities, and coordinating product distribution. Requires a minimum of 2 years of experience as a Product Manager, fluency in Spanish and English, and strong analytical skills.

WeGrow seeks a Sales Manager in Spain to develop and execute sales strategies, manage customer and supplier relationships, and drive sales execution. The ideal candidate will have a strong understanding of agricultural markets, technologies, and experience in WSF, inhibitors, and/or biostimulant sales.

The Corporate Treasury and Financial Technician will lead bank loan negotiations, supervise banking relationships, and oversee credit insurance policies. This role also involves providing financial support to the Group and subsidiaries, managing cash flow forecasts, and ensuring accuracy of financial documentation.

This role requires a System Engineer with 5+ years of experience in virtualization, particularly Nutanix. Responsibilities include L3 IT support for Prism Element and Prism Central, ESXi management, virtual server deployments and upgrades, and storage/network configuration. Fluency in English is required, along with relevant IT certifications (Nutanix mandatory, VMware preferred).

Accounting Intern will support the finance team with tasks such as collaborating on accounting, tax processing, and preparing reports. Interns will participate in annual audit work and utilize ERP systems like SAP.

Process Engineer will provide technical support, drive continuous improvement initiatives, and optimize plant performance.

Senior Demand Manager will maintain relationships with sales, marketing, finance, and supply planning teams. Responsibilities include challenging and building consensus-driven forecasts, analyzing sales performance, and leading the Sales & Operations Planning (S&OP) process.

Manages all Barcelona Sorting Center operations, including inbound, sorting, distribution, and outbound processes. Leads and optimizes the operations team, collaborating with cross-functional departments to ensure efficient and cost-effective operations. Resolves operational disruptions and implements process improvements to achieve operational excellence.

Provides administrative and operational support, ensuring tasks are handled with precision and efficiency. Requires administrative, scheduling, and office management skills, as well as customer service and communication skills. Must be detail-oriented, organized, and proficient in Microsoft Office Suite. Fluency in Spanish and English is required. Possession of a personal car is necessary.

Site Manager needed for photovoltaic projects. Responsibilities include ensuring project completion, monitoring progress, coordinating with internal departments, and managing the site team. Requires experience in construction project management and strong communication skills.

Technical Engineer to provide pre- and post-sales support for solar tracker solutions. Responsibilities include technical proposal development, system sizing, customer support, installation assistance, and product development. Requires a degree in a relevant field, solar energy experience, and proficiency in design and simulation tools.

Experienced Completions Coordinator needed for a major industrial project. Coordinate mechanical completion activities, manage system boundaries, track progress, and compile handover documentation.

Client Experience and Admissions Lead oversees client onboarding, manages admissions, tracks progress, and implements engagement strategies.