intern internship English-speaking jobs in Cartagena

Lead and evolve IT operations and infrastructure for a European deep-tech company developing RISC-V processor technology. Manage a hybrid infrastructure including on-premise HPC clusters, cloud platforms, and Rocky Linux/RHEL-based compute farms.

Manage and support a sales team in Santa Eulalia, acquiring and selling real estate properties. Develop market analyses and property presentations.

The S&OP Technician - Demand Planning will develop demand forecasts, support risk assessments, and propose solutions to improve forecast accuracy. The role requires proficiency in statistics, forecasting methods, and SAP or related software.

Prototype Factory seeks a Frontend Developer to build beautiful, responsive, and functional UIs for MVPs and prototypes. Collaborate with designers and backend engineers to translate Figma designs into production-ready components. Experience with TypeScript, React, Next.js, and UI libraries is required.

Teach English to kids, teens, and adults in Barcelona at Language Avenue. Must have C2 English proficiency, cultural knowledge of an English-speaking country, and experience teaching various CEFR levels.

This Systems Engineer role focuses on owning and optimizing the global cloud infrastructure for N26. Responsibilities include system lifecycle management, automation, AI infrastructure provisioning, monitoring, and troubleshooting. The ideal candidate will have experience with AWS services, IaC (Terraform or AWS CDK), containerization, and DevOps practices.

Senior Engineer to lead proposal and bid management for an international company specializing in Oil & Gas and Offshore Wind. Requires 5+ years of experience in the sector, strong analytical and communication skills, and the ability to coordinate cross-functional teams.

Key Account Manager (KAM) for the Trade channel in Central Spain (Madrid, Valladolid, Toledo, Zamora, Salamanca, Palencia, Segovia, Guadalajara, Ávila). Develop and execute 12-24 month sales programs to achieve revenue and EBITDA targets. Manage key accounts, build commercial plans, and lead a GPV. Requires 5+ years of relevant commercial experience in FMCG/consumer goods business development and fluency in English.

This role requires a CSV Specialist to manage and optimize the Pragma eQMS system, ensuring data integrity and user support. Responsibilities include system configuration, data handling, user training, and collaboration with various departments. Proven experience with electronic quality systems and CSV data handling is essential.

Leads engineering operations and maintenance across data center availability zones. Manages infrastructure build-out, project timelines, and vendor relationships. Oversees critical mechanical and electrical service availability. Develops and implements risk management strategies.

Sales Assistant / Sales Specialist will support sales teams in developing new opportunities, generating leads, and setting up appointments. Responsibilities include following up with prospects, collaborating with marketing and operations, and maintaining accurate sales records.

Develop and maintain robust web applications using Java and reactive frameworks. Design and implement microservices in a cloud environment.

Business Development Manager to build and manage a client portfolio in the Portuguese IT market. Responsibilities include prospecting, sourcing consultants, and driving the full sales cycle. Requires 1+ year of experience, native-level Portuguese, and fluency in English and Spanish.

Execute Upstream (USP) activities in Cell Culture, following GMP regulations. Responsibilities include cell culture execution, SOP writing, batch record preparation, equipment maintenance, and process improvement support.

Max Ricart, a luxury real estate agency in Barcelona, seeks a Rental Agent to specialize in Zona Alta properties. The role involves marketing, renting, and managing properties, building relationships with owners and tenants, and ensuring compliance with rental documentation.

Senior Sales Executive to define and execute sales strategy for advanced tech solutions in Spain and Europe, targeting large-scale B2B clients. Requires proven expertise in enterprise B2B sales, excellent communication skills, and fluency in Spanish and English.

Cyber Security Engineer - Red Team will simulate adversarial attacks against cloud architecture, AI models, and SaaS platforms. Responsibilities include penetration testing, vulnerability research, threat modeling, and collaborating with SecOps and Bug Bounty teams.

A growing technology company seeks a Junior DevOps Engineer to support automation, deployment, and scalability of core systems. Responsibilities include building and maintaining CI/CD pipelines, supporting containerization with Docker and Kubernetes, and collaborating with engineering teams. Requires 2+ years of commercial experience in DevOps or software development with a Java background, experience with CI/CD platforms, Docker, and Kubernetes, and strong Git and communication skills.

An Oracle Data Center Technician will act as a technical liaison between technology teams and the data center environment. Responsibilities include troubleshooting hardware issues, installing and maintaining server hardware, and providing technical solutions to internal customers. The role requires experience in rack and stack equipment, structured cabling, and hardware repair.

Performance Engineer needed to conduct performance, load, and stress tests on web applications. Analyze frontend performance and identify bottlenecks. Collaborate with developers and stakeholders to integrate performance testing into CI/CD pipelines.