Backend Engineer Jobs

Backend Engineer

Adevinta

Location:
Spain, Barcelona

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

Within our Core User Profile Team, we are looking to define how ratings should look like and behave to enable trust between buyer/seller and to create the best shopping experience. This role is based at our Barcelona Tech Hub, where we develop cutting-edge technology to power our marketplaces at scale. As part of a cross-functional product development team, you will contribute to the success of Kleinanzeigen, Germany’s leading online classifieds platform with over 36 million monthly users and 50 million active listings. We’re seeking a passionate new team member to join us as a Backend Engineer. This is an excellent opportunity to join one of our Core Marketplace Teams at Kleinanzeigen working with User Profile products. We are looking for a skilled Backend developer to join us; someone who can solve complex engineering problems with a strong user focus and loves to work with passionate and engaged people in one of the world’s leading classifieds platforms. You will work in an agile and cross-functional team together with Frontend and Native app Engineers, Backend Engineers, Product Manager and UX experts to enable our customers to have the best experience. You'll collaborate closely with other platform core teams to ensure seamless integration and a cohesive user experience.

Job Responsibility:

Be part of a welcoming and multicultural team, working in an Agile environment
Collaborate closely with Backend, Frontend and Mobile Engineers, as well as Product Managers and UX designers
Develop and maintain high-quality backend systems applications, scaling to thousands of concurrent requests
Write clean, efficient, and reusable code following best practices and coding standards
Participate in design decisions and code reviews
Own the entire development and release cycle from specification to running in production together with your cross-functional team
Ensure the quality of your product because you understand that quality is the responsibility of the entire team
Work with the team to constantly evolve our ways of working
Be an active part of our Engineering community to make sure the discipline keeps advancing throughout the company
Stay up-to-date with industry trends. Learn new tech and non-tech related skills to grow yourself and your team

Requirements:

At least 2-3 years of experience developing Java/Spring Boot based backend services
Hands-on experience with Spring Boot and the broader Spring ecosystem
Experience with MySQL or other relational databases
Experience with AWS and cloud-native development
Experience with version control systems such as Git
Experience with containerization technologies (e.g., Docker, Kubernetes)
Experience with distributed message brokers (e.g., Kafka, Kinesis/Firehose)
Knowledge of monitoring and observability tools like Grafana or Datadog
Familiarity with continuous integration and deployment (CI/CD) tools such as Jenkins or GitHub Actions
Understanding of APIs, microservices architecture, and server-side processes
Excellent soft skills: strong communication in English and a high degree of ownership
True team player with an excellent collaborative mindset and a drive to face challenges and learn

Nice to have:

Familiarity with NoSQL databases (e.g. MongoDB)
Experience with Elasticsearch
Understanding of performance optimization and scalability best practices in distributed systems
Prior experience in e-commerce, marketplace platforms, or large-scale consumer applications
Familiarity with event-driven architectures or domain-driven design principles
Familiarity with machine learning or data engineering is a plus

What we offer:

An attractive Base Salary
Participation in our Short Term Incentive plan (annual bonus)
Work From Anywhere: Enjoy up to 20 days a year of working from anywhere
A 24/7 Employee Assistance Program for you and your family
A collaborative environment with an opportunity to explore your potential and grow
A range of locally relevant benefits

Additional Information:

Job Posted:
December 15, 2025

Employment Type:

Fulltime

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