intern internship English-speaking jobs in Cartagena

DFT & Post-Silicon Validation Engineer will develop and implement DFT methodologies, perform scan insertion, ATPG, and test coverage analysis.

Manager to oversee daily operations of a bathhouse, ensuring guest experience, team management, and profitability. Responsibilities include performance reporting, staff supervision, and maintaining operational excellence.

Account Manager responsible for visiting customers, developing relationships, identifying business opportunities, and promoting sales of construction machinery. Requires familiarity with the local market and construction machinery knowledge.

Performance Test Engineer to design, build, and execute automated non-functional tests for a low-latency system. Analyze performance, identify issues, and collaborate with development and infrastructure teams.

The Accounting & Administration Specialist ensures financial transaction accuracy, maintains records, and supports regulatory compliance. Provides financial analysis, manages accounts receivable, and collaborates with internal and external partners. Supports the Finance Manager and implements finance department initiatives. Requires knowledge of accounting, administration, process optimization, and cost analysis. Fluent English is essential.

Roc360 seeks a Real Estate Closing Specialist in Madrid to oversee and manage US real estate loan closings. The role involves collaborating with legal counsel, title companies, and internal teams to ensure compliance, manage risk, and deliver a positive client experience. Requires fluency in English, a bachelor's degree, 3-5 years of relevant experience, and strong communication and organizational skills.

Technical-Commercial Engineer needed for District Heating projects. Must have a University Degree or Master's in Engineering and excellent communication skills in German and English (C1 level required). Will act as a liaison between Process and Commercial teams, providing technical support for proposals and bids. Experience with District Heating/Cooling networks, thermodynamics, and energy markets is a plus.

Bilingual School Secretary needed to provide administrative support, manage student records, and serve as the first point of contact for families and visitors. Must be fluent in English and Spanish, possess excellent organizational skills, and have experience with office technology.

Lead the design and execution of portfolio optimization and hedging strategies across European power markets. Manage market positions, structure PPAs, and develop valuation frameworks.

Senior Java Software Engineer to design, implement, and maintain Spring Boot services for ingesting and processing event-driven data. Experience with Java 21, Spring Boot 3.x, Docker, AWS Kinesis, and PostgreSQL required. Must be able to provide 6 hours overlap with US Central Time.

Business Partner Cost Center Controller for Global Function Management in Onshore. Analyzes budgets, prepares forecasts, and provides financial insights for decision-making. Manages yearly budgets, analyzes cost structures, and prepares monthly reports. Requires a Master's degree and 2-5 years of experience in controlling, finance, or accounting. Proficiency in Excel, SAP, and Power BI is essential.

CENTIRO Consultant to manage implementation and delivery of IT solutions for new CMS logistic projects. Responsibilities include scope management, functional requirements definition, stakeholder management, and user acceptance testing.

Conducts inspections of products, materials, and services to ensure quality standards compliance. Performs tests, measurements, and audits to verify quality and accuracy. Prepares reports and communicates findings to management. Ensures processes meet regulatory, safety, and internal quality requirements. Identifies areas for quality improvement.

Receptionist needed for part-time, seasonal position (April 15th - October 15th) in Tarifa. Responsibilities include welcoming guests, managing bookings, handling inquiries, and providing administrative support. Fluent English and Spanish required.

Jira Administrator needed to manage and optimize the Atlassian ecosystem (Jira Software, Jira Service Management, and Confluence). Responsibilities include configuring workflows, implementing automations, and collaborating with engineering and program management teams. Experience administering Jira, understanding Jira APIs, and knowledge of agile methodologies are required.

Scope is on the lookout for a dynamic and results-driven Project Finance Analyst to join our EU Project Finance & Infrastructure Credit Rating team. This is an exciting opportunity to actively contribute to the growth of the burgeoning infrastructure and project finance asset class. You will leverage Scope’s proprietary rating methodology and extensive industry expertise to make a tangible impact.

As an Enterprise Customer Success Manager, you will partner with customers to successfully execute their strategies using Cascade's AI-powered platform. You will drive product adoption, renewals, and expansion while building relationships with senior leaders. You will translate strategic plans into operational frameworks, advise on strategy execution, and guide customers through organizational change.

SRE/DevOps Lead to ensure high availability, reliability, and scalability of critical systems for a banking client. Requires +6 years experience as a DevOps Engineer, Cloud Engineer, or similar role in cloud environments, previous experience as a Team Lead, and strong experience in AWS, Infrastructure as Code, CI/CD pipelines, Docker, Kubernetes, and monitoring tools. Must have excellent English skills (B2+/C1).

Recruitment Intern will manage the full recruitment cycle, source candidates, conduct interviews, and present to clients. Must be a current student enrolled in a Bachelor's or Master's degree and fluent in French, German, or Dutch.

Senior AI Software Engineer to design, develop, and maintain full-stack applications, integrating AI models into real products. Build prototypes, data pipelines, and automate processes. Requires 6+ years software development experience, strong web development skills, cloud platform knowledge, and AI technology understanding.