intern internship English-speaking jobs in Cartagena

Senior Customer Support Agent needed for our European team. Provide technical and non-technical support to customers via chat (Intercom) in English and German. Must have 2+ years of customer support experience and fluency in English and German.

Develop and maintain business relationships with corporate customers to meet sales objectives. Manage client portfolios, leading negotiations and reviews, including contractual terms, pricing, and renewals.

Lead a research group and drive high-impact R&D projects in Gas Capture & Separation Technologies. Design, plan, and execute projects aligned with European innovation agendas. Develop competitive proposals for European programs and coordinate multidisciplinary consortia. Manage project execution, ensuring timely delivery of milestones and deliverables.

Provides technical support for the installation, commissioning, operation, and maintenance of lithium-ion energy storage systems. Analyzes customer applications, ensures product adaptation, and resolves field issues. Trains third-party providers and supports the bidding process. Requires engineering, technical, and electrical skills, field experience, and knowledge of batteries and applications. Must have REA certification.

This role focuses on extracting insights from trading performance data and translating them into actionable recommendations for management. Responsibilities include analyzing performance against benchmarks, developing deeper analyses of underperforming regions, and supporting commercial teams with trading information.

The ESG Administrator supports the organization's environmental, social, and governance (ESG) strategy by coordinating, tracking, and reporting ESG data and initiatives. This role ensures accurate data management, facilitates compliance with relevant regulations, and assists with stakeholder communications and project support.

Document Control Technician will support quality system management, facilitating document flow and audits. Responsibilities include document audits, training support, and non-conformity closure.

The Senior Financial Controller ensures the accuracy and strategic relevance of financial reporting. This role oversees month-end closing, complex financial analysis, and forecasting processes, providing insights to support decision-making and drive business growth.

Experienced OT Security Engineer needed for global shopfloor security program. Implement and operate OT security controls, deploy security platforms, monitor alerts, and support incident response. Collaborate with SOC, OT, and engineering teams. Travel to manufacturing sites required.

Provides administrative support to the Chief Sales Officer, Head of Sales, and Sales Project Managers. Manages travel arrangements, meeting minutes, and CRM data. Responsible for local adaptations and translations of sales materials.

As an Assistant Store Manager, you will support the Store Manager in driving sales, profitability, and team performance. You will coach and develop a team, analyze sales trends, manage payroll, and ensure brand standards are met.

Supports Marketing & Trade team in project development and brand management. Assists with daily operations, including performance monitoring, sell-in/sell-out analysis, and digital plan management. Collaborates with agencies and internal teams on marketing materials and customer support.

Support the management of framework contracts with International Organisations and European Institutions. Manage contracts end to end, coordinate with clients, consultants, and partners, and ensure contract execution, quality delivery, and compliance.

Deploy cutting-edge ML/LLM models to Fortune Global 500 clients. Employ automation tools to enhance ML/LLM processes. Establish monitoring systems to track model performance and address issues. Collaborate with Product, DevOps, and research teams to optimize model performance. Manage cloud infrastructure for Large Language Model workloads.

Experienced Year 1 Primary Teacher needed for maternity cover at BSB City Campus. Successful candidate will deliver engaging phonics sessions, use assessment to support early reading development, and ensure pupil progress. UK qualifications and relevant experience are essential.

Senior Product Manager to develop and grow mobile apps (iOS and Android). Define product roadmap, analyze user behavior, and drive optimization strategies. Collaborate with cross-functional teams to launch new features and products.

Commercial Operations & Business Partner supports the Commercial Department by analyzing inventory, margins, and sales data. Develops sales proposals, manages the order cycle, and collaborates with the commercial team on sales strategies. Requires 5+ years of experience in commercial operations, S&OP, or trade/retail with a focus on profitability and efficiency.

Digital Marketing Manager to build and execute a global marketing strategy for SalesGoal.com, focusing on B2B SaaS product positioning and demand generation.

Develop and implement optimization algorithms for route planning, inventory management, and supply chain scheduling in the animal feed sector.

Animator & VFX Artist to create 2D and 3D animations and real-time VFX in Unity for gameplay and UI. Collaborate with teams to ensure responsive and readable interactions.