intern internship English-speaking jobs in Cartagena

About RateGainRateGain Travel Technologies Limited is a global provider of AI-powered SaaS solutions for travel and hospitality that works with 3,200+ customers and 700+ partners in 100+ countries helping them accelerate revenue generation through acquisition, retention, and wallet share expansion.

We are seeking a 3-4 experienced Corporate Affairs Manager to join our team to design and execute corporate public affairs and regulatory strategy. The ideal candidate will have a background in consultancy or in-house public affairs, expertise in government relations, and excellent analytical and communication skills.

In KernTerminal we are looking for an accountant for our headquarters in Villanueva del Pardillo, Madrid.

The purpose of the role is to act as a Team Leader; supervising, managing and motivating team members on a daily basis. You will be part of a rapidly growing multilingual team, focused on providing optimization consultancy to our client's Account managers. Your role is to guide the team and be the point of contact for all team members and team related matters.

5 years of experience in finance, internal control, or audit; experience in the logistics industry is preferred; 2. Proficient in both Chinese and English; proficiency in a third language is a plus; 3. Experience with financial systems; proficiency in Oracle is a plus; proficient in Excel and other MS Office software; 4.

We are looking for a full time API Solid State Chemist to act as Project Leader in our Technical Department. ENANTIA is a leading Contract Research Organization (CRO) with over 20 years of experience providing chemical R&D services to the pharmaceutical and fine chemicals industry, specialized in R&D Process Chemistry, Solid Forms and Medicinal Chemistry.

At Think Ahead Academy, we are redefining academic excellence. Specialising in the IGCSE, A-Level, and IB programmes, we deliver tailored instruction to high-achieving students from diverse international backgrounds. Founded in 2016, our academy is built on a foundation of innovation, support, and a commitment to transform teaching into an engaging and rewarding experience.

At AMFRESH, we are a global fresh food company focused on leading varietal innovation, agronomy and biotechnology, large-scale farming, and the global commercialization of citrus, table grapes, cherries, tropical fruits, berries, apples, pears, freshly squeezed juices, and flowers.

ROLE: Coherency Verification Engineer LOCATION: Barcelona, Spain SALARY: Negotiable DURATION: Permanent Description We are seeking a Coherency Verification Engineer with a strong passion for microprocessor architecture. You will join the Verification Team and play a key role in ensuring the correctness and functionality of complex digital designs at the Register Transfer Level (RTL).

Process Engineer – Clean Room Packaging Area Barcelona (UAB Campus) | Micro/Nano Fabrication | International Research Environment The IMB-CNM (CSIC) is one of the largest institute in Spain dedicated to Micro and Nano Technologies and Microsystems , and home to the biggest clean room facilities in the country.

One of our partners, a leading international tech company in the eCommerce sector, is looking for Backend Engineers to join their growing team in Barcelona . We are open to candidates with strong experience in PHP who are eager to transition into Golang, as well as developers already working with Go who want to deepen their expertise in a technically challenging and collaborative environment.

At Itera Mobility Engineering, we are seeking a Quality Engineer to join our automotive engineering team in Valencia, Spain.

Where E-commerce Excellence Meets Global ScaleAbout FloraQueenFloraQueen is a global e-commerce company specializing in international gift and flower delivery, operating across more than 100 countries.

Pilot Line Equipment Installation & Acceptance Manager - PIXEuropeBarcelona (UAB Campus) | Micro/Nano Fabrication | International Research EnvironmentThe Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Spain’s leading centre for micro- and nanotechnologies, is seeking a Pilot Line Equipment Installation & Acceptance Manager to join the PIXEurope Project, a flagship initiative funded

Our high level of professionalism and commitment drive us to a permanent research to improve efficiency and sustainability and always in compliance with the law and aligned with the highest ethical standards. At Tecnicas Reunidas, we have a strong commitment to equal opportunities between men and women, as well as diversity. To achieve this, we carry out rigorous selection processes that ensure it.

We are hiring: BUSINESS DEVELOPMENT MANAGER Purpose of the position: Manage in alignment with Business Development Director, the candidate will be responsible for the deployment of new project proposal in the area of generics for livestock and companion animals.

We are looking for a highly experienced Design Evaluation Engineer to join our team, working on the development of advanced measurement solutions and the evaluation of next-generation products. This role offers the opportunity to shape product validation methodologies and ensure that our technologies meet the highest levels of accuracy, compliance, and performance.

We are looking for a motivated IT Technician to join our dynamic team. The successful candidate will be responsible for providing technical support, troubleshooting, and maintenance of IT systems and infrastructure—from internal users to external customers and suppliers. This role is key to ensuring the smooth operation of hardware, software, and networking components.

Why we need this role Join a team of highly skilled and passionate customer support engineers, taking full responsibility for resolving customer faults and technical challenges related to Colt’s Packet & SDN products and services.

About Us Hi there! We know you've seen many job descriptions. This one might look like the others, but what we’re building, and the role you could play in it, is something we are very excited about. We are Bihar Batteries, a new-generation battery startup based in San Sebastian.