intern internship English-speaking jobs in Cartagena

Lead lawyer for M&A transactions, focusing on the U.S. market. Manage asset and company purchase and sale operations, from legal structure design to post-acquisition integration. Provide legal advice to U.S. subsidiaries and coordinate multi-jurisdictional legal audits.

Provides day-to-day HSE support for high-voltage cable manufacturing, construction, and offshore installation projects. Conducts site inspections, audits, and safety walks to ensure compliance with HSE standards and legislation. Leads incident investigations and delivers HSE training.

Lead a team of embedded software engineers, driving the full software development lifecycle for space applications. Expertise in C/C++, embedded systems, Linux (PetaLinux), Python, and MBSE tools is required.

Customer Success Specialist to champion user experience across applications. Manage feedback channels, analyze trends, and collaborate with product and development teams to improve usability. Minimum 2 years of experience in customer success, community management, or QA with a UX focus required.

Administrative Assistant Trainee to support operational and compliance tasks for a pharmaceutical client. Assist with project management, digital tools, and internal systems.

Leads monthly, quarterly, and annual consolidation for 23+ legal entities, ensuring accuracy under IFRS and Spanish GAAP. Manages intercompany reconciliations, eliminations, and foreign exchange impacts. Serves as the internal subject matter expert on IFRS and Spanish GAAP. Produces consolidated financial statements and disclosure notes. Oversees statutory accounts preparation for international entities.

The Sales Executive manages client relationships and accounts, achieving revenue goals through new business development and existing client management. This role involves market research, sales calls, site inspections, and coordinating events.

Lead Data Scientist will own and advance the architecture and delivery of AI-powered Search and discovery platforms. This role will define and execute the technical strategy for scalable, production-grade search systems, building and optimizing machine learning and information retrieval pipelines.

Senior Consultant & Market Researcher with 5+ years experience in consultancy, marketing, market research, or innovation. Expertise in User and Market Research, especially within Healthcare. Strong analytical, communication, and leadership skills. Fluent in Spanish, English, and conversational Catalan.

The CMMS System Adoption Engineer maximizes the use of the CMMS across offshore wind projects. This role ensures standardized system usage, user training, and continuous improvement. The position requires 5+ years of experience in maintenance operations, CMMS administration, and change management.

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.

Experienced Network Engineer L1 needed for on-demand dispatch support in Leon, Spain. Provide onsite technical support for server, storage, network, and data center infrastructure. Responsibilities include deployment, break-fix, IMAC, and operational tasks. Strong troubleshooting, customer-facing, and communication skills required.

Supervises a team of Service Center Agents and Training Administrators, ensuring training consultancy delivery according to procedures. Manages workload, provides customer service through email, and escalates queries. Monitors quality, KPIs, and documentation. Leads team development, knowledge retention, and onboarding.

The Crew Recruitment Consultant interviews crew, vets references and licenses, and sources candidates using CRM and social media. They present shortlists to clients, ensure MLC compliance, and provide after-sales service.

Senior Software Engineer (Backend) to develop and deliver new products, improve existing ones, and mentor colleagues. Requires experience in developing complex systems, ideally using Python, and strong communication skills.

AI Technical Business Analyst needed to bridge business and engineering teams for internal AI tooling. Analyze business processes, identify automation opportunities, and design solutions. Drive change management and ensure compliance with AI governance standards. Requires 5+ years of business analysis experience, including 2+ years in AI, data, or automation. Hands-on experience with AI-assisted documentation and code-generation tools is essential.

| Import & Export Specialist – Linares (Spain) Location: Linares, Spain Department: Supply Chain / Logistics Contract: Full-time / Permanent Desay SV is growing in Europe! We’re looking for an Import & Export Specialist to join our team in Linares.

Leads the Massimo Dutti Feel Loyalty Program strategy, defining benefits, communication, and analysis. Manages program implementation across online and offline channels, collaborating with departments to ensure a cohesive customer experience. Requires 7+ years managing loyalty programs, preferably in fashion, with strong analytical and communication skills.

Full-Stack Developer will translate business requirements into working products, identify and solve critical challenges, and work with architects, developers, and scrum masters. Responsibilities include implementing new designs, importing data through web services, and working with JavaScript, HTML, CSS3, and frameworks like AngularJS, React, and Vue.

Frontend Developer to build the client-side of web tools and websites. Requires 3+ years of experience, proficiency in JavaScript, Typescript, React, Next.js or Astro, Git, Unix, SASS, HTML, CSS3, and testing. Must have a passion for developing user interfaces. EU citizenship or valid work permit required.