Open Innovation Campus

Location

Madrid

Weekly hours

25

Expected Start Date

October, 2025

Job Profile

Technology

Speciality

Full Stack

Language

Español / English

Full Stack Developer

Description of the team offering the internship

We are the Telefónica Venture Builder team and we are part of the “Discovery” area of Telefónica Innovación Digital. Our projects are born from an exhaustive process of survey and validation of ideas and / or technologies owned by Telefónica or any of the other external sources with which we are working. Once the idea is selected, the team proceeds to perform an in-depth analysis of the proposal from all areas: technical, UX, product, business and financial. We help in building prototypes, launching MVPs, facilitating deployments, etc. The location can be Madrid or Valladolid. You can learn more about us here: https://venturebuilder.telefonica.com

What will you learn during your internship with us?

You will be part of the engineering team, where we prototype concepts and technologies that become future businesses. In particular, you will participate in the construction of tools and projects that help us to build prototypes more quickly to test functionalities, experiment with users, estimate architecture costs, etc. Our prototypes usually have a BE, a FE and the associated infrastructure to enable CD/CI. About the technologies: BE: we typically use Python with Poetry. FE: we typically use React CI/CD: Docker, Ansible for cloud deployment (Azure)... Although we are looking for a Full Stack profile, we will probably ask you to focus a bit more on the FE part, where current projects may pose new requirements.

Training and skills you will need to develop this internship

Education: studying engineering/graduate degree in computer science, telecommunications or similar. Knowledge: we value knowledge in python and javascript (especially with the React library). English: it is enough technical knowledge to be able to handle documentation in English. Experience: it is not necessary, although we would like to see any personal project, internship, test... that you have developed with the technologies mentioned above. Soft-skills: we are looking for a person with the ability to solve problems on their own, search for information and complete their training by resorting to sources of knowledge, in short, that you can have autonomy in your daily work, although we will always be available to help you and make you evolve.