I

ING

Global banking and insurance group

Software Backend Engineer

Full-Time
No salary listed
Senior
Madrid, Spain
HybridHybrid schedule with days worked from home and days at the ING Madrid office.
Software EngineeringBackend Engineering

About the job

Requirements
  • Good coding skills across the middleware layer using Java 8, 11, 17, or 21.
  • Experience with Spring Boot, Spring MVC, Spring Core, Spring Security, and dependency injection.
  • Knowledge of microservices, hexagonal architecture, API composition, RESTful APIs, OpenAPI, and Swagger.
  • Knowledge of design patterns, SOLID, Clean Code, and software craftsmanship.
  • Experience with unit, integration, smoke, and contract testing, including JUnit, Mockito, MockMvc, WireMock, and PowerMock.
  • Experience with Maven, JPA, Oracle, JDBC, Git, and domain-driven design.
  • Backend and DevOps awareness, including understanding global architecture and infrastructure.
  • Experience with Docker and OpenShift or Kubernetes.
  • Experience with CI/CD pipelines and Azure DevOps pipelines.
  • At least 5 years of experience with a similar technical stack.
  • Experience working in Agile teams using Scrum, Kanban, or Extreme Programming.
  • Excellent spoken and written English skills.
Responsibilities
  • Design, develop, and test code for application components while meeting functionality, quality, and performance requirements.
  • Deliver working software to production using appropriate technology and development practices, including supporting documentation and parameters.
  • Support production by analyzing and fixing software bugs.
  • Contribute to improving technical discipline by collaborating with the cross-technical chapter.
  • Add value to the backend technical layer while considering the full technical stack as part of squad responsibilities.
  • Perform coding, story refinement, environment management, release activities, and monitoring.
Desired Qualifications
  • Knowledge of microservices architecture patterns including circuit breakers, API gateways, and service discovery.
  • Experience with feature flags.
  • Knowledge of retail banking.
  • Experience with database migration tools such as Flyway and Liquibase.
  • DevOps skills.
  • Experience with Prometheus and Grafana.
  • Experience with the ELK stack, including Elasticsearch, Logstash, and Kibana.
  • Knowledge of security technologies including JWT, mutual TLS, and access tokens.
  • Experience with Ansible.
  • Experience with behavior-driven development.
  • Experience with automated testing tools such as Selenium and Cucumber.
  • Knowledge of reactive programming and futures.
  • Experience with Akka and Scala.
  • Knowledge of message brokers such as RabbitMQ and Kafka.
  • Knowledge of NoSQL databases such as Cassandra and MongoDB.

About the company

ING Group is a large financial services company that provides banking, investments, and insurance. It operates by combining banking and insurance services for individuals and businesses, offering products like savings accounts, loans, payments, asset management, and insurance through a global network and digital channels. Its distinction comes from its long history of mergers (Nationale-Nederlanden and NMB Postbank) that created an integrated financial group, its substantial European footprint, international reach, and ability to manage both banking and insurance within one organization. The company aims to help customers manage money and risk across Europe and beyond, with services spanning retail and corporate banking, investment products, and insurance.

Company Size

10,001+

Company Stage

IPO

Headquarters

Amsterdam, Netherlands

Founded

1991

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Simplify's Take

What believers are saying

  • On 21 September 2026, ING financed GridStor's $220 million Arizona battery project.
  • ING's Q2 2026 net core lending grew €15.2 billion and deposits €15.9 billion.
  • ING upgraded 2026 income guidance above €24.5 billion and kept a €1.0 billion buyback.

What critics are saying

  • On 5 May 2026, ING settled a Belgium money-laundering probe for €1.6 million.
  • ING announced 1,250 job cuts in March 2026, including 950 Dutch roles.
  • Repeated AML failures would trigger Dutch, Belgian, and ECB scrutiny, crushing ING's franchise.

What makes ING unique

  • ING mixes European retail deposits with global wholesale lending, funding large project finance.
  • On 30 July 2026, ING reported a 13.1% CET1 ratio and 17.0% ROTE.
  • ING mobilized €86.5 billion of sustainable finance in H1 2026, led by SLLs.

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Benefits

  • Health Insurance
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Paid Vacation
  • Flexible Work Hours
  • Hybrid Work Options
  • Family Planning Benefits
  • Fertility Treatment Support
  • Wellness Program
  • Mental Health Support
  • Phone/Internet Stipend
  • Home Office Stipend

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