INTERNSHIP DETAILS

Backend Engineer Intern

CompanyING
LocationMadrid
Work ModeOn Site
PostedMarch 11, 2026
Internship Information
Core Responsibilities
The intern will support the implementation of new backend features and improvements to existing systems, adhering to standards and best practices. Key tasks include assisting in defect identification, reviewing logs and metrics for improvements, and learning continuous integration and deployment pipelines.
Internship Type
part time
Company Size
69712
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
ING is a pioneer in digital banking and on the forefront as one of the most innovative banks in the world. As ING, we have a clear purpose that represents our conviction of people’s potential. We don’t judge, coach, or tell people how to live their lives. However big or small, modest or grand, we empower people and businesses to realise their vision for a better future. We made the promise to make banking frictionless, removing barriers to progress, and make people confident in their financial decisions. As a global bank we have a huge opportunity – and responsibility – to make an impact for the better. We can play a role by financing change, sharing knowledge, and innovating. Being sustainable is in all the choices we make—as a lender, as a partner and through the services we offer our customers
About the Role

At ING we are looking for Backend Engineer Intern

Your role and work environment:

We are looking for a talented and enthusiastic Backend Engineer Intern to join our Team

You will be part of our IT Engineering community. You will learn about the ING Way of Working and our technology platforms, which enables our ING business to build application that reach millions of customers.

As an intern you will be allocated to one of our projects and be given the opportunity to contribute to our code base and make impact to our customers.

During your internship you will learn new technologies, new engineering methodologies and you will be invited to share your learnings and experiences with other passionate engineers.

You will be invited to join all the rituals and ceremonies of our squads and be treated equally. As such we look forward to your contributions.

Your key responsibilities:

As a Backend Engineer Intern, you will:

  • Support the implementation of new backend features and improvements to existing systems, following standards and best practices.
  • Assist in identifying defects and proposing solutions under the guidance of senior engineers.
  • Help review logs, metrics, and data to detect issues and potential improvements across the squad’s digital products.
  • Learn and support the use of continuous integration and deployment pipelines in accordance with internal policies.
  • Contribute to understanding and using different environments (development, integration, production) within the software lifecycle.
  • Collaborate in creating and running basic tests to ensure correct backend behavior.
  • Become familiar with cybersecurity principles, performance optimization, and engineering best practices.

What are we looking for?

Want to know if this intership is made for you? These are some of the qualities that we value the most for this role. And if the shoe fits… don’t hesitate to apply!

  • Basic proficiency in software development using Java.
  • Familiarity with backend frameworks such as Spring Boot.
  • Understanding of secure and clean coding principles, and interest in learning automated and unit testing.
  • Familiarity with source control and CI/CD tools (e.g., Git, Azure DevOps).
  • Willingness to work in a collaborative Scrum environment and learn from senior engineers.
  • Curiosity about backend fundamentals such as APIs, databases, performance, logging, and observability.

What do we offer?

The time you spend at work, the challenges you face or the lessons you get are very important, but… What about your personal life? At ING we want your work to fulfill you in every way, and that is why we take care of even the smallest details.


Check out what is waiting for you!

Paid interships. Gain experience and learn while getting paid. Our paid internship program is designed to offer you real work experience while you continue your studies. Work alongside experienced professionals and acquire valuable skills that will prepare you for your future career.

Be flexible my friend. Our model is all about flexibility and accountability. Keeping both our customers and our colleagues needs in mind, you determine together which days you work at home and which you come to ING MAD to offer your best self. Do your thing.

Our house will be your home. In our offices you can find electric mobility solutions, doctor, hairdresser, gym, The Good Service (to help you with your errands) and much more!

Free company bus.  It doesn't matter where you live. We have 6 routes (North, Centre, South, A5, A42 and A6) so that you can get to our ING office in Madrid comfortably.

More vitality and more belonging 360º care of the employee (physical, mental, financial, and social). Health services in company (physiotherapy, phycological and medical services). Orange sports (football, basket, running, golf, gympass …).

Employee Networks: Rainbow Lions (LGBTQI+) & Leonas.

Get to know Us

We are a team of more than 1600 people sharing one idea: doing our bit in helping our clients create a better future for themselves, by providing them with the tools they need to get where they want to go.

A fully online bank where technology, innovation, simplicity and transparency are the main ingredients, and the first one to work with agile methodologies.

And although we are based in Spain, we are lucky to work in an international bank with presence in more than 40 countries.

We are proud to have a diverse team and we are committed to continue developing a culture of Diversity, Inclusion and Belonging to foster a culture of collaboration and innovation that represents all collectives in the society.

And even though we look orange on the outside, we are green on the inside. Our ambition in Sustainability is Empowering (y)our Sustainability journey. We are embarking on our path, for us, but we are also there for when our clints decide to embark on this journey.

Making things happen, helping others be successful, always being one step ahead—that’s our DNA. If you look at yourself in the mirror and your reflection matches our way of being and working…we are looking forward to meeting you!

             

Key Skills
JavaSpring BootSecure Coding PrinciplesClean Coding PrinciplesAutomated TestingUnit TestingGitAzure DevOpsScrumAPIsDatabasesPerformance OptimizationLoggingObservabilityContinuous IntegrationContinuous Deployment
Categories
TechnologySoftwareEngineeringData & Analytics
Benefits
Paid internshipsFlexibilityElectric mobility solutionsDoctorHairdresserGymErrand assistanceFree company bus360º care of the employee (physical, mental, financial, and social)Health services in company (physiotherapy, psychological and medical services)Orange sports (football, basket, running, golf, gympass)