Software Backend Engineer

ING España&Portugal; Comunidad de Madrid; Presencial; EUR 60.000 - 100.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health insurance

Flexible remuneration

Free company shuttle

Pension plan

Descripción de la vacante

ING España&Portugal is seeking a skilled Software Backend Engineer to design, develop and test backend services for our banking applications, ensuring performance and reliability. You will own Java microservices including REST APIs, design patterns, testing (unit/integration), configuration with Docker/OpenShift/Kubernetes, and collaboration across squads to maintain a robust production stack.

This role emphasizes DevOps awareness, modern security practices, and strong English communication; the

Formación

• Experience designing and implementing backend software for complex applications.
• Strong knowledge of Java and microservices architectures.
• Familiarity with REST APIs, OpenAPI, Swagger, and testing strategies.
• Experience with middleware, database access, and DevOps tooling.

Responsabilidades

• Design, develop and test backend services meeting functionality and performance goals.
• Deliver production-ready software and support in Production by analyzing issues.
• Collaborate across squads to improve technical discipline and architecture.

Conocimientos

Java

Microservices

REST APIs

Design patterns

SOLID

Testing

Maven

JPA

Oracle

JDBC

Git

DDD

Docker

Kubernetes

OpenShift

Azure DevOps

5+ years experience

Agile/SCRUM/Kanban/XP

English

Feature Flags

Retail banking knowledge

Flyway/Liquibase

Grafana

ELK stack

JWT

Mutual TLS

Ansible

BDD

Selenium

Cucumber

RabbitMQ

Kafka

NoSQL (Cassandra/MongoDB)

Herramientas

Docker

Kubernetes

OpenShift

Jenkins/Azure DevOps

Maven

Git

Descripción del empleo

At ING we are looking for a Software Backend Engineer

Your role and work environment:

We are looking for a talented and enthusiastic Software Engineer Backend to join us.

Your key responsibilities:

As an experienced Software Engineer Backend, 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 documentation and parameters that can help reaching that goal. To support Production by 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 Backend area, 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 major responsibility areas:

• Coding
• Environments management
• 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…

As a Software Engineer Backend for one of our tribes you should have the following knowledge and experience:

• Good coding Skills on all Middleware layer: Java 8/11/17/21
• Microservices: Hexagonal architecture, APIs composition, RestFul, OpenAPI, Swagger.
• Design Patterns, SOLID, Clean Code, Software Craftmanship.
• Testing: Unit Testing (Techniques: White-box/ Black-box, What is a unit?); Type of testing

(unit testing, integration and smoke); Junit; Contract Testing; Framework mocks (Mockito,

• Maven.
• JPA, Oracle, JDBC
• Git.
• DDD.
• Backend & Devops awareness (understand the global architecture / infrastructure).
• Docker, Openshift or Kubernetes.
• Experience working with Azure Devops (pipelines).
• 5 years of experience on similar technical stack.
• Agile team experience with SCRUM or Kanban or XP.
• Excellent speaking and writing skills in English is a must.
• Feature Flags
• Retail banking knowledge.
• Database migration tools (such as Flyway, Liquibase).
• DevOps Skills.
• Grafana
• ELK STACK (Elastic Search, Logstash, Kibana).
• Security: JWT, Mutual TLS, Access token.
• Ansible.
• BDD.
• Automatic testing (Selenium, Cucumber).
• Reactive programming: futures.
• Message Brokers (such as RabbitMQ, Kafka).
• NoSQL knowledge (such as Cassandra, MongoDB).

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.

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.

Special loans with more beneficial conditions.

Special mortgage conditions after 6 months working at the bank.

And you can benefit from our pension