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Back End Development

Telefónica
Telefónica
Madrid, SpainOn-siteCompetitiveAdded 1 month agoPermanent

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

BACK END DEVELOPMENT

Telefónica España

Do you want to join a leading company in the technology industry?

We know you are looking for a change...

And that is why, at Telefónica España, we offer you the opportunity to join our team.

WORK LOCATION: MADRID

WHAT ARE WE LOOKING FOR?

People who are eager to give their all and make a difference. Passionate about innovation and cutting-edge technologies.

With this opportunity, you can dive into the exciting technological universe and be part of the change: a more connected, more human world, full of stories that transform lives.

Remember to attach your updated CV in PDF format.

WE WANT PEOPLE LIKE YOU...

Be responsible for the definition, design, and evolution of backend solutions on Cloud‑native and microservices architectures, guaranteeing the security, scalability, availability, and efficiency of the systems that support the transactional ecosystem.

You must ensure correct integration with core and third-party systems, as well as the application of technical standards, development best practices, and security policies, continuously adapting the architecture to changes in business and technological requirements.

WHAT CHALLENGES WILL YOU FACE DAY-TO-DAY:

  • Participate in the development and adaptation of the transactional ecosystem.
  • Design and implement multi-channel authentication solutions for agents.
  • Develop and evolve the Agent Gateway and its integration with core systems.
  • Evolve the middleware and COL systems, facilitating secure communication with multiple data sources and services.
  • Collaborate in the orchestration of critical services in distributed environments.
  • Guarantee the security and scalability of the solutions.
  • Agent Gateways or integration platforms.

DO YOU IDENTIFY WITH THIS? IT'S TIME TO TAKE THE LEAP!

EDUCATION

Bachelor's Degree in Computer Science or Telecommunications, or Vocational Training or equivalent in back end development

SKILLS

  • Solid experience in backend development with technologies such as:
  • Java (primary)
  • Python / Node.js (valued)
  • Experience in microservices architectures, based on REST services
  • Advanced knowledge in Google Cloud Platform (GCP). GCP Professional Cloud Developer certification will be valued
  • Experience in security and authentication, including:
  • OAuth2
  • OpenID Connect
  • JWT
  • Experience in design and optimization of APIs / Gateways.
  • Ability to work in complex high-availability environments and critical systems. Knowledge of the software development life cycle (SDLC)
  • Knowledge of AI applied to transactional systems.
  • Previous experience with integration platforms and token management,

At Telefónica, we firmly believe that promoting diversity and inclusion is a great opportunity to connect talent, grow as a company and as a society. There is a place at Telefónica for all types of talent; above all, we seek diversity of talents. What is yours?

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WHY TELEFÓNICA?

If you join Telefónica, you join one of the TOP TEN technology companies to work for in Spain and a team that never stops reinventing itself every day to be a leader in its sector.

At Telefónica España, we firmly believe that it is people like you who give meaning to technology and not the other way around. We want to make our world more human, connecting people's lives. Therefore, we aim to digitalize the entire society, leaving no one behind.

Additionally, we are one of the best employers:

  • Immersing yourself in novel and challenging projects.
  • Boosting your professional development, through continuous training adapted to your needs and motivations.
  • We bet on the balance between professional and personal life. At Telefónica España, we promote flexibility, positioning ourselves as a benchmark in new ways of working, schedules, workdays, and reconciliation measures: you can enjoy a hybrid work model.
  • We offer you a Permanent contract and very attractive remuneration.
  • Life insurance, pension plan, and private medical insurance.
  • Inviting you to participate in our volunteer program.

It is necessary that you are aware of our company's Responsible Business Principles. We seek reliable professionals with integrity, who are committed to ethical and transparent management, promoting a fairer and more sustainable social and environmental development.

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