intern internship English-speaking jobs in Cartagena

Accounting & Administrative Manager to support the financial and administrative management of three growing companies. Responsibilities include coordinating accounting activities, organizing documentation, tracking expenses, and assisting with personal finance organization. Requires a degree in a related field, 1-2 years of experience, fluency in English, and experience with Sage Despacho and/or Sage 200.

Business Development Manager to develop and implement B2B sales strategies for digital campaigns across Poland and Europe. Requires fluency in Polish and English, 3+ years of experience in digital media sales, and a strong network within the digital industry.

Enterprise Architect for Client Channels will define target architecture, standards, and roadmap for CIB client-facing channels. This role requires expertise in ensuring cross-domain alignment across Markets, Transaction Banking, and Client Services while adhering to Group/CTO standards.

IE University's School of Science and Technology seeks a tenure-track Research Professor in Computer Architecture and Systems. The successful candidate will establish a world-class research program and teach undergraduate and graduate courses. Priority research areas include advanced processor architectures, hardware-software co-design, emerging memory systems, energy-efficient computing, and security-aware hardware design.

Junior Full-Stack Developer will build features for a production-ready platform using Next.js and Node.js. Collaborate with founders and senior engineers on LLM orchestration, infrastructure, and data velocity solutions.

Manages HR transformation projects focused on technology and data to enhance the employee experience and provide HR teams with efficient tools.

Mechanical Production Engineer needed for optical payload manufacturing and testing. Responsibilities include leading production processes, ensuring quality standards, and collaborating with engineering and supply chain teams. Requires 1-3 years of experience in mechanical production or manufacturing engineering.

Senior Backend Engineer to design, develop, and maintain scalable APIs and backend services for autonomous inspection robots. Will work closely with robotics engineers and software teams to ensure system reliability and usability. Requires experience building maintainable backend systems and APIs, strong problem-solving skills, and proficiency in TypeScript.

Sales Assistant to contribute to store turnover and customer satisfaction. Achieve sales goals, present products, identify customer needs, and build customer loyalty. Experience in luxury sales and customer service required. Fluent Spanish and English.

Payroll Supervisor will review payroll work, process payroll, ensure compliance with Spanish labor laws, and manage a team. Requires a Bachelor's degree in Human Resources, fluency in English, and at least three years of experience in payroll outsourcing.

Senior Solution Architect with 5+ years of experience leading cloud architecture initiatives, preferably on AWS. Expertise in defining enterprise-level architectures, hybrid cloud, and migration strategies. Strong understanding of systems design, networking, security, and distributed architectures. Proven experience with containers and container orchestration. Excellent communication and leadership skills.

Designs and implements engineering processes (design, product, and manufacturing) within the 3DEXPERIENCE platform. Requires 5+ years of 3DEXPERIENCE/ENOVIA PLM implementation experience and end-to-end project experience.

Business Development Director to lead sales and revenue growth in South East Europe. Experience selling software or enterprise technology to insurance companies required. Fluency in English and Spanish essential.

Provides administrative and commercial support to the Iberia sales team. Creates quotes, coordinates gym layout drawings and BOMs, and manages CRM records. Supports lead generation and qualification activities.

Full Stack Engineer needed to build and maintain scalable web applications using Python and TypeScript. Experience with Web Components, Strapi, Docker, and CI/CD pipelines required.

The Headmaster/Headmistress will lead the development and deployment of staff, curriculum, teaching, management, and efficiency. Responsibilities include motivating the school community, ensuring student welfare, maintaining educational quality, managing the school budget, and developing a strategic plan.

Provides administrative support to a team of Partners and Directors in the financial services sector. Manages calendars, coordinates meetings, arranges travel, and maintains client records. Requires fluency in English and Spanish (C1 level) and proficiency in standard office applications. Minimum 3-4 years of experience as an Executive Assistant is required.

International Business Intern to support company expansion. Conduct market research, assist with contract preparation, and collaborate on logistics and strategic initiatives.

Plant General Manager to lead multiple manufacturing sites in the Vigo region. Full accountability for safety, quality, delivery, costs, and productivity. Experience in plant or industrial management, automotive or Tier-1 industrial environments, and transformation contexts is required.

Allfunds seeks a Fullstack Developer trainee with knowledge of modern JavaScript (ES6+), React.js, Node.js, Express.js, and REST APIs. Responsibilities include frontend development with React.js, backend development with Node.js, testing, and collaboration on projects.