intern internship English-speaking jobs in Cartagena

Leads the design and implementation of AI solutions from concept to production. Requires 7+ years of experience building production-grade AI & Data systems, expertise in LLMs, cloud platforms, and end-to-end project delivery.

Alantra Private Equity seeks off-cycle interns for a 6-month program. Interns will support investment analysis, research, and execution, including market analysis, financial modeling, and valuation.

Corporate & Business Development Manager will drive strategic growth by identifying, evaluating, and executing business opportunities, with a focus on M&A and corporate initiatives.

Trading Systems Engineer needed to build high-throughput data platforms and trading systems. Responsibilities include designing, developing, and stress-testing systems handling high trade volume. Requires 2+ years of Python/Rust experience, a quantitative background, and strong problem-solving skills.

Salesforce Developer / Administrator needed for a global digital company specializing in accelerating business experience through customer-centric solutions. Responsibilities include analyzing requirements, participating in technical design, and collaborating with teams to achieve project objectives. Requires a degree in Computer Engineering or a related field and at least 2 years of experience as a Salesforce Developer with experience in Sales Cloud and/or Service Cloud.

Supports the Quality Management Manager in implementing quality systems, ensuring compliance with food safety standards. Manages quality assurance processes, conducts audits, and contributes to continuous improvement initiatives.

Technical-Commercial Engineer for District Heating needed. Must have a university degree in Engineering and excellent German and English communication skills (C1 level German 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.

Part-time Marketing & Social Media Intern to manage Instagram and TikTok presence, identify and engage influencers, and support influencer marketing campaigns.

Maintains inventory records, receives and verifies merchandise, and ensures timely dispatch. Organizes and labels goods, processes documentation, and participates in fiscal inventories. Supports sales by providing product presentations and assisting with customer service.

Data Engineer specializing in Azure Databricks needed to design, develop, and maintain data pipelines and Lakehouse architectures. Responsibilities include building data transformations using PySpark and SQL, implementing Delta Lake architectures, and integrating data from various sources. Requires 3+ years of experience in data engineering or data warehouse development with strong Azure Databricks, PySpark, and SQL Server experience.

Backend Developer with 5+ years of Go (Golang) experience sought for full-remote role. Expertise in ORM tools, Postgres, Docker, Kubernetes, and Git required. Experience with testing frameworks and CI/CD practices is essential.

Financial Crime Consultant to lead end-to-end delivery of projects within a TSB Fincrime Data and Transaction Monitoring migration program. Requires 5+ years of experience in Financial Crime or related domains, strong understanding of controls and data pipelines, and proven track record of project delivery in Agile and/or Waterfall environments.

Business Analyst to support data-driven decision-making and growth strategy. Analyze sales and performance data, identify revenue-maximizing opportunities, and track progress toward KPIs. Collaborate with internal teams to implement initiatives and contribute to long-term planning.

The Predictive Diagnostics Associate will detect, report, and document potential failures in wind turbines, solar panels, and other electric systems using condition monitoring and data analytics. Responsibilities include analyzing operational data, communicating inspection recommendations, assessing asset condition, creating reports, and managing relationships with vendors.

Senior Project Manager to lead a large-scale green/brownfield expansion project for an industrial terminal in Spain. Full lifecycle project ownership from engineering through execution and delivery.

Skilled Rust Engineer needed to build and maintain next-generation WebAssembly infrastructure. Experience with WebAssembly, WASI, Emscripten, and POSIX required. Strong ownership and communication skills essential.

Leads campaign development for OPPO in the Spanish market, translating consumer insights into engaging, youth-oriented content. Manages strategy from ideation to execution, collaborating with cross-functional teams and external partners.

Water Engineer needed for industrial projects in metals and minerals. Responsibilities include hydraulic modeling, design, and analysis of water systems. Requires a Bachelor's degree in a relevant field and 4+ years of experience.

Manage and develop relationships with clients, providing ongoing support and optimizing account performance. Track performance, identify growth opportunities, and collaborate with internal teams.

As a Purchaser & Technical Support, you will ensure the availability of parts and components for after-sales service projects. You will define purchasing and outsourcing solutions, manage supplier relationships, and provide technical support.