intern internship English-speaking jobs in Cartagena

Develop and maintain business relationships with corporate customers to meet sales objectives. Manage client portfolios, leading negotiations and reviews, including contractual terms, pricing, and renewals.

Short-term project (approx. 5 weeks) reviewing employee personnel files onsite at client locations. Requires fluency in English, accuracy, and confidentiality.

Leads IT infrastructure and application support teams in a hybrid environment. Manages live services, incident response, and operational discipline. Requires experience in IT infrastructure operations, leadership, and ITIL.

DevOps Engineer needed to orchestrate containerized environments using Terraform and manage infrastructure as code. Responsibilities include monitoring system performance, implementing improvements, and reporting to the CI DevOps Lead. Requires deep Python knowledge, experience with CI/CD platforms, and expertise in cloud-based infrastructure automation.

Senior Machine Learning Engineer to develop and productize LLM-based, agentic, and generative AI pipelines. Design scalable architectures integrating AI into Keysight's software and hardware platforms. Collaborate with domain experts to gather requirements and implement ML solutions for data augmentation, anomaly detection, modeling, and automation.

The Quality Assurance & Regulatory Officer ensures ELEM Solutions comply with quality and regulatory requirements. Responsibilities include designing, developing, and documenting solutions, managing non-conformities, and ensuring product release compliance. The role also involves regulatory monitoring, document control, and training.

Technical Sales Specialist for Adhesives in Barcelona region. Develop new customers and maintain existing relationships. Provide technical support and sales expertise in the adhesives sector. Requires a Bachelor's or Master's degree in a relevant field and 3-5 years of experience in sales within the adhesives industry.

C# Developer to implement business logic and interfaces for Dynamics 365 CRM using C#, TypeScript, and ASP.NET Core. Integrate existing systems with Azure Service Bus and Logic Apps. Collaborate with a team in Barcelona and Switzerland.

Senior Account Executive to manage and develop key client accounts. Collaborate on strategic and creative projects, prepare communication materials, and manage client relationships. Requires native or bilingual English, a related degree, and over four years of agency experience.

Design and develop scalable ABAP solutions for a leading international retailer's IT hub in Barcelona. 5+ years of ABAP development experience, focusing on the SD module, is required. Experience with S/4HANA and SAP Fiori is essential. Strong English skills (B2+) and a collaborative mindset are key.

As a Commercial and Technical Advisor, you will accelerate Rockpanel growth in Spain through technical and commercial support to the local operating company. You will act as a liaison between Rockpanel and Rockwool Spain, ensuring alignment with stakeholders across sales, technical services, marketing, and application & development. You will translate local market needs into fit-for-purpose solutions, optimize specifications, and drive project success.

AX Partners seeks a Lawyer to provide legal support for real estate investments. Responsibilities include due diligence, transaction documentation review, legal oversight of investment vehicles, and asset management.

Computer Vision / Machine Learning Engineer to join R&D team focused on improving license plate recognition, vehicle detection, and parking occupancy systems. Develop, implement, and optimize deep learning models using Python. Must have strong Python programming skills, experience with machine learning models, and a software engineering background. Fluent Catalan and/or Spanish, with English at B2 level or higher.

Ensures correct preparation, review, and management of technical and regulatory documentation for HVAC equipment, guaranteeing compliance with international standards and internal quality.

Production Planning Specialist will develop and maintain the annual production plan, analyze capacity, and manage MRP data. Requires a degree in Engineering or Science, strong analytical skills, and experience with ERP systems and production planning.

DevOps Engineer with deep Python development experience and expertise in Terraform, CI/CD platforms, and cloud infrastructure automation. Requires knowledge of containerization (Docker), AWS services (EC2, ECS, S3, IAM, CloudWatch, VPC), and cloud security.

The Sales Support Officer Trainee will support Inside and Outside Sales teams in Barcelona. Responsibilities include following up on shipments, managing quotations, assisting with market data, and promoting CMA CGM services. The ideal candidate will have a strong understanding of customer needs, familiarity with commercial policies, and proficiency in Spanish and English.

Operations Research Engineer will design and implement optimization algorithms for route planning, inventory management, and supply chain scheduling in the animal feed sector.

DevOps Engineer to design, automate, and operate scalable cloud infrastructure. Build and manage cloud infrastructure using Terraform, automate CI/CD pipelines, and manage AWS environments.

Senior Risk Analyst will supervise and coordinate the payments and fraud operations team, analyze risks related to payment methods, identity verification, and gaming behavior, and propose process improvements. Requires 3-4 years of experience in risk, fraud, payments, or KYC roles, strong analytical skills, and fluency in Spanish and English.