intern internship English-speaking jobs in Cartagena

Join Amaris Consulting and contribute to large-scale digital projects with real impact on thousands of users. Be part of an international, agile environment and grow within a global organization that values expertise, innovation, and delivery excellence.

Senior Technical Asset Manager to oversee wind and solar portfolios. Manage O&M service providers, ensure compliance with technical and regulatory standards, and analyze performance data.

System Configuration Specialist to resolve Murex incidents, interact with users, and manage tasks using Jira and Service-Now. Requires Murex and Financial Markets knowledge, financial products knowledge, trade lifecycle knowledge, client orientation, basic programming skills, and teamwork skills.

Technip Energies is a leading engineering and technology company for the energy transition, with leadership positions in LNG, hydrogen, and ethylene, as well as growing market positions in blue and green hydrogen, sustainable chemistry, and CO2 management. The company benefits from its robust project execution model, backed by a broad offering of technologies, products, and services.

Key Account Manager, Barcelona AreaManufacturing (High Innovation model)Hybrid Model (minimum 3 days per week in office + some international travel) Salary: 70-75k + bonus + car Retained & Exclusive Search: B-People is working with a new Advanced Manufacturing Division to find a strategic Key Account Manager.

Manage luxury group travel projects from inquiry to completion, designing and coordinating bespoke cultural itineraries across Spain.

About the job How would you like to work for a leading fintech company? Roc360 is a leading US fintech servicing the largest market in the world, the $43trn US residential real estate market.

Content Reviewer needed to evaluate digital content for accuracy and quality. Assist in improving AI responses by following project guidelines and identifying errors or inappropriate content. Must have strong attention to detail and familiarity with social media platforms.

Senior Full Stack Developer needed to architect scalable growth systems for newly acquired ventures. Lead technical due diligence, post-merger integration, and define technology stack across diverse product lines. Must have experience with Python, PHP, NodeJS, cloud computing, and security best practices. Proven ability to lead and stabilize underperforming engineering teams.

Role Summary Henko Partners seeks an M&A Manager to scale a new buy & build platform in industrial technical services. This is a high-growth, setup and scale role, working closely with the incoming CEO and CFO of the platform company, in direct coordination with Henko. The platform targets a highly fragmented sector with significant white space for consolidation.

Company description The Marketing Hub is a digital B2B marketing agency, specializing in the management of sales and marketing programmes that deliver increased sales volume for global leading technology companies, telecommunications carriers, and software start-ups. Our client is helping educators and businesses succeed worldwide.

Position: Scientific Labeler & LaTeX Specialist Job Type: Freelance, Fully Remote Job Summary: Thoth AI is seeking detail-driven, STEM-literate individuals to train vision-language models (VLMs) to understand and process complex scientific content.

We're looking for a driven Account Manager to accelerate our growth in Poland based in our HQ in Madrid. About us: Vidoomy is a specialized adtech company in video advertising across 3,000+ premium publishers. We connect advertisers with quality audiences while maximizing publisher revenue.

Drive sales growth in Northern Spain and Portugal for a growing industrial equipment manufacturer. Develop and manage a distributor network, identify new business opportunities, and promote technical compressed air solutions.

Lead Planner for a large-scale data center construction project in Zaragoza, Spain. Develop and maintain resource-loaded schedules using Primavera P6. Minimum 5 years' experience in planning large-scale construction projects required. Proficiency in Primavera P6, Earned Value Management, and Excel.

Java Developer to build microservices using Spring Boot and REST APIs. Requires 3+ years of experience with Java, PostgreSQL, JPA/Hibernate, AWS, and unit testing.

Customer Experience Business Consultant will participate in customer experience and transformation projects, analyzing customer journeys and collaborating with multidisciplinary teams to deliver end-to-end transformations.

Senior Client Payroll Specialist leads end-to-end payroll operations, ensuring accurate and timely processing, compliance with regulations, and continuous process improvement. Manages a portfolio of clients, oversees payroll adjustments, and acts as a subject matter expert.

This hands-on role focuses on keeping merchant operations running smoothly. You will handle customer queries, manage support tickets, and collaborate with Sales, Product, and Engineering teams to ensure issue resolution and customer retention.

Leads global medical, clinical, and regulatory strategy for a diversified portfolio of injectable and device technologies. Responsible for innovation, R&D, clinical development, and regulatory compliance across 70+ international markets.