At ING we are looking for Android Developer

Your role and work environment:

We are looking for a talented and enthusiastic Android Developer to join us.

As an experienced Android Developer, your aim will be: 

To design, develop and test the code that will shape the different components of the application, ensuring that they meet the requirements of functionality, quality and performance. 

To deliver in Production a working software by giving the best use to technology and development practices. It includes the testing, observability,documentation and parameters that can help reaching that goal. To support Production by monitoring crashes, analysis and fixing any bugs that occurs. Contribute to improve the technical discipline by collaborating with the cross technical chapter.

As an expert in the native technology, you specifically add value on that technical layer but always keep in mind the rest of the technical stack as part of the Squad responsibilities.

Your key responsibilities:

Features &Stories Refinement

Coding

Testing & Release

Monitoring

What are we looking for?

Want to know if this job 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!

As an experienced Android Developer for one of our tribes you should have the following knowledge and experience:

Essential (must‑have)

- Advanced Kotlin (data/sealed classes, inline/reified, extensions, null‑safety, basic DSLs)

- Functional programming in Kotlin: immutability, pure functions, composition, explicit error handling with Either/Validated/Optional for safe domain modelling and flows.

- Clean Architecture applied to Android (domain/data/presentation layers, feature modules, dependency injection, separation of concerns) with MVVM and MVI following SOLID principles.

- Coroutines & Flows (scopes, structured concurrency, cancellation, operators, backpressure, cold/hot flows, StateFlow/SharedFlow) for asynchronous programming.

- Solid XML layouts (custom views, styles/themes, accessibility).

- Navigation and robust lifecycle management

- Communication layer: interceptors, timeouts/retries, serialization, caching strategies, error handling and modelling.

- Dependency Injection (DI): scopes, entry points, testing with fake modules.

- Unit tests with JUnit and MockK and reactive‑flow tests with Turbine or similar solutions

- Biometrics and operation‑validation flows with a focus on UX/security and resilience.

- Observability with Analytics and ability to correlate metrics with releases.

- Code review and teamwork in development teams.

- Security awareness (secure storage, obfuscation, SSL pinning, tampering/rooting protection according to policy), privacy, and approved dependency management.

Desirable (nice‑to‑have)

- Deep WebView integration: JS bridges, secure JavaScript injection, cookie/session management, error handling and log visibility. Experience debugging native↔web calls in critical flows (login/validation).

- Testing: UI tests with Espresso (Idling resources, robots, custom matchers/actions)

- Monitoring with Analytics and performance using Firebase (instrumentation of critical events, traces, ANRs/Crashlytics, performance traces) and ability to correlate metrics with releases.

- Advanced Jetpack Compose (Lazy performance, Compose testing, XML interoperability, multipreview, scalable theming).

- Security (Crypto, Keystore, hardware‑backed, risk evaluations, Play Integrity, Recaptcha, code obfuscation with R8).

- Performance: profiling with Android Studio Profiler, WebView optimization (caches, prerender, cold start).

- Quality Tools configuration: linters, detekt/ktlint, Gradle tasks for coverage, CI.

- Experience with App Bundles / Play Console.

- Accessibility (TalkBack, font sizes, contrast, focus, custom views).

- Continuous Integration: pipelines, automated checks, branching strategies, quality gates, security policies...

Specific technologies & tools

- Kotlin, Arrow

- Retrofit + OkHttp

- Hilt

- Google Services and Firebase (Analytics, Crashlytics, Performance)

- Android Keystore, R8, Recaptcha

- Detekt, Jacoco

- Azure DevOps

- Adjust, Adobe

- Lottie

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!

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.

Restaurant card.

So that thinking about what to have for lunch doesn’t take up your time or your cravings.

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!

Health insurance.

For you and all your family (spouse/partner and children).

Life insurance.

We help you protect what matters most to you.

Flexible remuneration.

In addition, you will enjoy our flexible remuneration model, through a more tax-advantaged way, you will be able to access other services such as nursery, transport card, training aids…

Free company shuttle.

It doesn't matter where you live. We have 6 routes (North, Central, South, A5, A42 and A6) to get you to our ING office in Madrid comfortably.

Banking benefits.

Special loans with more beneficial conditions.

Special mortgage conditions after 6 months working at the bank.

And you can benefit from our pension plan after 1 month with us!

More vitality and more belonging

360º care of the employee (physical, mental, social connection & purpose).

Physiotherapy service on site.

Clinics with professional, world-class athletes.

Gympass service.

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

International Remote work program.

Get to know Us

We are a team of more than 1700 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 clients 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!

----------------------------------------------------------------------------------------------------------------------------

¿Qué ofrecemos?

El tiempo que pasas en el trabajo, los retos que enfrentas o las lecciones que aprendes son muy importantes, pero… ¿qué pasa con tu vida personal? En ING queremos que tu trabajo te llene en todos los sentidos, y por eso cuidamos hasta el más mínimo detalle.

¡Descubre lo que te espera!

Be flexible my friend.
Nuestro modelo se basa en la flexibilidad y la responsabilidad. Teniendo en cuenta las necesidades de nuestra clientela y de nuestras personas compañeras, decidiréis conjuntamente qué días trabajas desde casa y cuáles vienes a ING MAD para dar lo mejor de ti. Haz lo tuyo.

Tarjeta restaurante.
Para que pensar en qué comer no te quite tiempo ni apetito.

Nuestra casa será tu hogar.
En nuestras oficinas encontrarás soluciones de movilidad eléctrica, servicio médico, peluquería, gimnasio, The Good Service (para ayudarte con tus gestiones) ¡y mucho más!

Seguro médico.
Para ti y toda tu familia (pareja y descendencia).

Seguro de vida.
Te ayudamos a proteger lo que más te importa.

Retribución flexible.
Además, disfrutarás de nuestro modelo de retribución flexible, que te permitirá acceder a otros servicios como guardería, tarjeta transporte, ayudas a la formación… de forma más ventajosa fiscalmente.

Lanzadera gratuita de empresa.
No importa dónde vivas. Tenemos 6 rutas (Norte, Centro, Sur, A5, A42 y A6) para que llegues cómodamente a nuestra oficina de ING en Madrid.

Beneficios bancarios.
Préstamos especiales con condiciones más beneficiosas.
Condiciones especiales en hipotecas tras 6 meses trabajando en el banco.
¡Y podrás beneficiarte de nuestro plan de pensiones tras 1 mes de estar en el banco!

Más vitalidad y más sentido de pertenencia
Cuidado 360º de la persona empleada (físico, mental, conexión social y propósito).
Servicio de fisioterapia in situ.
Club de runners con entrenador/a propio/a.
Clínicas con deportistas profesionales de élite.
Servicio Gympass.
Redes de personas empleadas: Rainbow Lions (LGBTQI+) & Leonas.

Conócenos

Somos un equipo de más de 1800 personas compartiendo una idea: aportar nuestro granito de arena para ayudar a nuestra clientela a crear un futuro mejor para sí misma, proporcionándole las herramientas que necesita para llegar donde quiere.

Un banco totalmente online donde la tecnología, la innovación, la simplicidad y la transparencia son los ingredientes principales, y el primero en trabajar con metodologías ágiles.

Y aunque estamos en España, tenemos la suerte de formar parte de un banco internacional con presencia en más de 40 países.

Estamos orgullosos/as de tener un equipo diverso y estamos comprometidos/as con seguir desarrollando una cultura de Diversidad, Inclusión y Sentido de Pertenencia para fomentar una cultura de colaboración e innovación que represente a todos los colectivos de la sociedad.

Y aunque por fuera somos naranjas, por dentro somos verdes. Nuestra ambición en Sostenibilidad es Empowering (y)our Sustainability journey. Estamos iniciando nuestro camino, por nosotros/as, pero también estaremos ahí cuando nuestra clientela decida emprender el suyo.

Hacer que las cosas pasen, ayudar a que otros/as tengan éxito, estar siempre un paso por delante… ese es nuestro ADN. Si te miras al espejo y tu reflejo encaja con nuestra forma de ser y trabajar… ¡estamos deseando conocerte!