intern internship English-speaking jobs in Cartagena

Business Analyst Intern will analyze client marketplace performance, build business reviews, and implement strategic recommendations.

Full Stack Engineer to join a growing development hub in Valencia. Develop and maintain web application features across the full stack (React + TypeScript frontend, Express.js + TypeScript backend). Design and implement database schemas, migrations, and optimized queries (MySQL / MariaDB). Build and maintain REST APIs and integrate them with frontend systems.

Manages the day-to-day operations of a global IT service desk, ensuring service levels and KPIs are met. Acts as the main point of contact for internal stakeholders and external service providers. Drives process standardization and adoption of ITIL best practices.

Leads product category strategy and execution, driving market share, volume, and profit targets. Manages brand strategy, marketing plans, product lifecycle, pricing, and financial performance. Requires B2B marketing experience in food, ingredients, or related sectors.

Brand Ambassador needed to deliver premium customer experiences via phone and email for a luxury automotive manufacturer. Must be native or bilingual in Austrian German and have advanced English skills.

SEO expert to develop and optimize content across ZAGA Centers brands, with primary focus on Smile24h.com. Responsibilities include technical website maintenance, content creation, keyword research, and performance analysis. Requires 2+ years of technical SEO experience and proficiency in English. Familiarity with SEO and CMS tools (SEMRush, Ahrefs, WordPress) is essential.

Stormshield, a subsidiary of Airbus Defence and Space Cyber Programmes, seeks a Key Account Manager for Defence in Spain. The role involves developing account strategies, identifying customer needs, prospecting for opportunities, and building relationships with decision-makers.

FPGA Development Engineer will design and develop electronic units for flight equipment, including analysis, specification, design implementation, and verification. Responsibilities include RTL VHDL design, physical implementation, documentation, and customer communication.

Senior Graphic Designer will create visuals for social media, digital campaigns, and marketing materials. Must have 6+ years of experience, a strong portfolio, and proficiency in Adobe Creative Suite. Experience in skincare, beauty, or cosmetics is preferred.

SAP SuccessFactors People Analytics Consultant needed to configure, maintain, and optimize reporting for a global workforce of 100,000 employees.

Senior Performance Marketing Manager will own paid media strategy and execution for B2B SaaS clients across LinkedIn, Google, Reddit, and other channels. Responsibilities include budget allocation, testing roadmaps, CRM and attribution alignment, and revenue-focused reporting. Requires 5+ years in paid media, strong hands-on experience with LinkedIn & Google Ads, and a deep understanding of B2B sales cycles. Must be comfortable integrating AI into campaign research, testing, and creative iteration.

Recruitment Consultant to lead end-to-end recruitment projects in the Netherlands. Minimum 2 years experience in recruitment, strong sourcing skills, and fluency in Dutch and English required.

Lead expansion into new geographies, platforms, and sub-brands for a high-performing supplement brand. Own commercial performance, define success metrics, and build new sub-brands. Requires 3+ years of experience growing ecommerce brands, excellent commercial judgment, and comfort with ambiguity.

The Centro Nacional de Análisis Genómico (CNAG) seeks a Head of People to manage personnel administration, training, talent attraction, and strategic HR projects. The role reports to the General Manager and collaborates with researchers to foster a supportive and inclusive work environment.

GBSB Global Business School seeks part-time lecturers to teach business courses in Barcelona. Applicants must have a Master's degree, strong English skills, and experience designing and delivering curriculum-based instruction.

Office Manager needed to ensure smooth daily operations. Coordinate office tasks, manage supplies, and provide administrative support. Strong organizational, communication, and problem-solving skills required.

Manages customer complaints and product recalls, acting as a liaison between customers and technical teams. Analyzes complaints, coordinates investigations, and proposes corrective actions. Provides technical customer service and supports product recall planning and execution.

Experienced Account Managers are needed to manage relationships with telecom partners, identify needs, and sell SMS or Voice routes. Responsibilities include coordinating traffic exchange, building partnerships, overseeing the sales process, and preparing performance reports.

Airframe Automation Specialist will contribute to the development and deployment of automation-aided design capabilities within the Airframe. Responsibilities include methodology development, strategic deployment, architecture integration, and process definition. Requires a degree in a relevant field, experience with CATIA V5, KBE, and coding/scripting, and knowledge of Airframe Engineering.

Love Brand Group seeks a People & HR Operations Intern to support team growth, documentation, and leadership coordination. This role involves managing the employee lifecycle, organizing internal tools, and assisting with client and financial operations.