Backend Developer Java | Microservices & Testing
Summary
Backend Java developer at consulting firm Amaris Consulting, building and evolving Spring Boot microservices and REST APIs for banking-sector solutions, with heavy focus on unit/integration testing (JUnit, Mockito). Based on-site in Madrid, Barcelona, or Valencia in agile teams.
This job advert was originally written in Spanish.
Requirements
What we're looking for
- Experience developing backend applications with Java.
- Knowledge of Spring Boot and microservices architecture.
- Experience with testing: JUnit, Mockito and integration testing.
- Knowledge of REST APIs and distributed services.
- Experience working with SQL and/or NoSQL databases.
- Familiarity with Git and agile methodologies such as Scrum or Kanban.
- Analytical mindset, orientation towards quality, and a desire to learn and contribute.
- Intermediate-advanced English level.
Nice to have
We value: experience in banking or financial environments, continuous integration, Docker, Kubernetes, Kafka, and test automation tools.
Pay & benefits
What you'll get
- Rapid growth through a personalized career path and salary review. 70% of our senior leaders started in entry-level positions.
- Improve your skills through our catalog of our Technology Academy, the Udemy platform, language classes, webinars and workshops.
- Take control of your training with an annual personal budget and company-paid certifications.
- Enjoy flexible policies, remote work options, and excellent social benefits such as transport and restaurant vouchers, childcare support, and private health insurance.
- Benefit from our WeCare program, which provides support to employees in critical situations.
- Unleash your full potential, both professionally and personally.
The role
Take your career to the next level with Amaris Consulting as BACKEND DEVELOPER JAVA | MICROSERVICES & TESTING - Madrid, Barcelona or Valencia. Become part of an international team, thrive in a global group with €800M turnover and more than 1,000 clients worldwide, and an agile environment. The ideal candidate must possess solid experience in .NET for backend development, as well as knowledge of Vue.js, Angular or React for frontend development. It is also essential to have experience in Git, working in agile environments such as Scrum or Agile, implementing microservices architectures, and interacting with APIs. Join Amaris Consulting, where you will be able to develop your potential and make a difference within the company.
What you'll do
- Develop and evolve backend applications using Java and Spring Boot.
- Design, implement, and maintain architectures based on microservices.
- Create and consume REST APIs to ensure efficient communication between systems.
- Develop unit and integration tests to ensure software quality, stability, and performance.
- Apply development best practices, SOLID principles, and design patterns.
- Participate in code reviews, incident resolution, and continuous improvement.
- Collaborate with multidisciplinary teams in agile environments, contributing to the evolution of critical solutions for the banking business.
WHY US?
Join our dynamic team of talented people and discover a world full of growth and opportunities. This is what we offer:
About Amaris Consulting
Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses, gathering 7,600 people across 5 continents and more than 60 countries. With more than 1,000 clients worldwide, its experts work across sectors ranging from financial services and transportation to healthcare and technology, organized around practices such as Life Sciences, IS & Digital, Telecom, and Engineering, plus Centers of Excellence covering areas like Agile Transformation, Quality Assurance, Health Economics & Market Access, and Advanced Application Development. The firm is part of Mantu, an international consulting group with a turnover of 1 billion and 12,000 people, headquartered in Geneva, Switzerland.
Amaris lists Spain among its countries of presence and is actively hiring there, with current openings including IT & Digital Project Manager, Senior Java Developer, Cybersecurity Engineer, Data Engineer - Spanish speaker, and several pharma-focused automation and clinical project roles. The company describes itself as an equal opportunity workplace and affirmative action employer, and highlights a workforce of 110+ nationalities, which points to a multicultural environment. Candidates should note that Amaris communicates only through its official email domains (amaris.com or mantu.com) and never requests money or personal details via informal channels.
- Industry
- Consulting
- Founded
- 2007
- Employees
- 7,600
- Headquarters
- Geneva, Switzerland
Good to know if you are moving
- Amaris operates in more than 60 countries across 5 continents with a workforce of 110+ nationalities, indicating a highly international environment.
- The company is an equal opportunity workplace and affirmative action employer, committed to equal employment opportunity regardless of national origin, citizenship, and other protected characteristics.
- Amaris is actively hiring in Spain, with open roles including IT & Digital Project Manager, Senior Java Developer, Cybersecurity Engineer, Data Engineer - Spanish speaker, and pharma automation leads.
- Some Spain-based roles, such as Data Engineer, explicitly require Spanish, so language requirements vary by position.
- The company warns candidates about recruitment scams: it only uses official email domains (amaris.com or mantu.com) and never requests money or personal details via informal channels.
In their own words
Additional information
Amaris Consulting prides itself on being an equal opportunity workplace. We are committed to promoting diversity within our workforce and creating an inclusive work environment. To this end, we welcome applications from all qualified candidates, regardless of gender, sexual orientation, race, ethnicity, beliefs, age, marital status, disability, or other characteristics.