intern internship English-speaking jobs in Cartagena

Manages and elevates butler service standards across a luxury fleet. Drives consistent, personalized service delivery and strengthens Butler team capabilities. Provides training, feedback, and support to ensure high-quality service.

Part-time Sales Assistant needed for a Bimba y Lola store in Ondara, Alicante. The role involves providing excellent customer service, assisting with sales, managing stock, and implementing visual merchandising guidelines. Previous sales experience and a passion for fashion are required.

QA Specialist to ensure compliance, product integrity, and operational excellence in a new pharmaceutical facility. Review and approve qualification/validation documents, maintain aseptic techniques, and provide QA oversight for CQV activities.

Finance Specialist to review, validate, and create financial content for AI model training. Responsibilities include identifying errors, biases, and hallucinations in financial outputs, designing training datasets, and evaluating AI-generated financial responses. Requires a Bachelor's or Master's degree in Finance, Accounting, Economics, or a related field and strong understanding of core financial concepts.

Computer Vision Engineer to develop and deploy 3D imaging and visualization software. Responsibilities include data preprocessing, model training, and production deployment. Requires strong deep learning fundamentals, Python proficiency, and experience with PyTorch or a similar framework.

Designs, develops, and implements automated solutions for testing and deploying software applications. Focus on front-end applications using Javascript/Typescript and tools like Selenium and Appium. Collaborates with QA engineers and developers to define test strategies and integrate automated tests into CI/CD pipelines.

Senior Software Engineer to design, develop, and maintain mobile applications for public transport operators and drivers using React Native and TypeScript.

Business Development Manager will originate and manage development applications in Spain, building relationships with brokers, developers, and intermediaries.

Leads end-to-end onboarding of new FMCG Manufacturers, develops new services, and drives inorganic growth by analyzing markets and identifying potential partners. Collaborates with operations, sales, and finance to shape strategies and manage projects.

Receptionists provide exceptional customer service as the first point of contact for students, managing daily operations, handling inquiries, and resolving issues. They ensure smooth check-in/check-out processes, process payments, and assist with administrative tasks.

FlowTiger seeks a Media Buyer to manage paid campaigns for ecommerce brands across Meta, Google, TikTok, and more. Proven experience buying media for ecommerce brands (3+ years) and hands-on experience with major platforms required.

Akens \ Nordburg seeks a Java Developer to design, develop, and maintain backend systems using Java and Spring Boot. Responsibilities include building reactive applications, implementing event-driven architectures, and integrating databases.

Sets the sales strategy for Xiaomi AIoT products in Spain, ensuring product launch readiness and managing business planning. Responsible for meeting sales and margin guidelines, driving product portfolio decisions, and identifying market opportunities. Collaborates with cross-functional teams to execute GTM strategies and ensure smooth product launches.

The Bar Supervisor ensures smooth bar operations, upholds Nobu brand standards, leads bartenders, develops new cocktails, conducts training, and oversees compliance with procedures.

Validate power converters and control systems, ensuring product reliability and compliance with international standards. Analyze test results, automate tests, and collaborate with engineering and quality teams.

Vue, a fast-growing skincare brand, seeks a Lead Graphic Designer to elevate brand visuals and ensure consistency across all customer touchpoints. This part-time freelance role (10-15 hours/week) focuses on brand design and visual leadership. Responsibilities include refining the brand look and feel, creating scalable design systems, and collaborating with the marketing team to ensure visuals support performance.

Senior Client Accountant will manage accounting for a portfolio of client companies, focusing on a specific sector. Responsibilities include preparing financial statements, tax filings, and managing a team. Requires 6+ years of experience, a degree in Accounting or Business Administration, and strong English proficiency.

Restaurant Manager to lead dining experience, ensuring guest satisfaction. Oversees daily operations, service, and team management. Requires previous experience, strong leadership, and communication skills.

Datacenter Network Technician will perform fiber testing, cabling, and installation. Support network and server teams with rack and stack, circuit migration, and maintenance. Conduct failure analysis, perform functional testing, and update IT ticketing systems. Experience with server provisioning, troubleshooting, and fiber optic testing is required.

Database Administrator (PostgreSQL) will design, implement, and maintain high-performance PostgreSQL databases. Responsibilities include optimizing queries, managing backups and disaster recovery, and collaborating with development teams.