intern internship English-speaking jobs in Cartagena

We are looking for a Project Manager to lead the development, construction, and commissioning of electrical and utilities infrastructure for a new data centre in Madrid. This role will also support business development and strategy activities related to project development. Key Responsibilities: Lead energy & utilities projects from concept to delivery, ensuring alignment with goals.

Andesite Partners is delighted to be working with a leading Madrid-based private equity firm to recruit 2–3 Investment Associates as part of a planned expansion of the investment team in Q1 2026. The firm invests in high-quality small and mid-sized businesses, partnering closely with management teams to drive long-term value creation.

Solution Architect – iGaming Location: Remote from Spain (Spanish employment contract) We are seeking an experienced Solution Architect to design, implement, and evolve large-scale, high-transaction iGaming platforms.

Hanshow is one of the world's leading digital shop solution providers in the retail field, with independent R&D and innovation, software and hardware solution integration, and industry-wide resource integration capabilities.

Are you an empathetic problem-solver with excellent communication skills and a passion for teamwork? Join our clients team in Barcelona and help deliver exceptional customer experiences worldwide. Key Responsibilities:Understand and identify customer needs, providing tailored solutions. Act as a mediator between international travelers and accommodation suppliers, ensuring top-tier customer service.

Product Owner | Clinical Trials & AI Innovation | Madrid Are you passionate about transforming healthcare through technology? We're seeking a Product Owner to join our growing team at the intersection of clinical data science, AI, and pharmaceutical innovation.

We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We're building a more open world. Join us.

Digital Design and or Verification experience is very interesting for my client. Role Overview We're seeking a highly skilled Verification Engineer to work on cutting edge nanometre scale projects (3–4nm). You'll play a key role in verifying complex digital architectures, switch designs, and chiplet based systems for high performance ASICs.

We are looking for a Customer Service Representative to join our client in their office in the Barcelona area. Our client helps global customers manufacture with precision—from aircraft to electric vehicles to medical devices. They thrive on collaboration and accountability, valuing every voice as they push boundaries and transform manufacturing.

M&A Manager Location: Spain (Remote - Ad hoc travel) Sector: Business Services Salary: €70,000 – €80,000 We are partnering exclusively with a PE-backed business services platform executing an ambitious EU-wide buy-and-build strategy.

Procurement Transformation Director We are partnering with a leading international organization undergoing a major transformation in its procurement function. This is a unique opportunity to play a pivotal role in shaping the future of procurement within a dynamic, growth-focused environment.

Job OverviewThe Onshore Wind Troubleshooter / Service Technician is responsible for the maintenance, fault diagnosis, and repair of onshore wind turbines to ensure optimal performance, safety, and availability. This role involves advanced troubleshooting of mechanical, electrical, and control systems, supporting both scheduled and unscheduled maintenance activities, and minimizing turbine downtime.

A superb opportunity to join this global, online travel business where you will be responsible for bringing their product to life across their social channels.

Who we are For over 14 years, Novalins has supported healthcare and life sciences companies with medical translation and language services that meet the highest standards of quality and regulatory compliance.

At Avincis, we're dedicated to meaningful work with a clear purpose. We're seeking talented individuals passionate about making a difference while growing their careers in a dynamic environment. Avincis is one of the world's leading Emergency Aerial Service Operators and the largest in Europe.

ResponsibilitiesBackend & Microservices Develop and maintain backend services (ideally Python / FastAPI or similar). Design APIs, data pipelines, and internal services. Integrate services with relational or time-series databases (MariaDB, InfluxDB, QuestDB). DevOps & Cloud Operate and deploy services on Kubernetes (manifests, Helm, Kustomize). Build and maintain Docker images and container workflows.

In this role you be responsible for leading and executing the sales strategy across Spain and Portugal. This role involves managing regional sales teams, driving revenue growth, building strong client relationships, and ensuring alignment with global business objectives. The ideal candidate is a strategic thinker with proven leadership skills and deep knowledge of the Iberian market.

Their CRM team is at the core of their growth, driving retention, engagement, and long-term success. As they continue to grow, they are looking for a CRM Manager to focus on the Swedish speaking market, creating localized and effective campaigns that drive results across both casino and sportsbook verticals.

Oxford Global Resources is seeking a Global CMC Regulatory Affairs Manager Consultant to support as external contractor on behalf of Oxford a top leading pharma company to support headquartered in Barcelona through our consulting services division.

Communications Specialist Summary Location: Barcelona (Hybrid) OR Reading, UK (Hybrid) OR potentially Remote. Day Rate: Negotiable Duration: 3 Months (with a potential view to extend further) Availability: ASAP About the Client My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments.