Remote Senior Backend Engineer - Java/Spring, Microservices

adesso Spain; Madrid; Hybrid; EUR 70,000 - 100,000; Full time

Benefits offered by this job

Private health insurance

Hybrid work model

International projects

Development plan with training

Language learning

Job summary

adesso Spain is assembling a backend team to build and evolve Java/Spring services supporting digital mobility. You will design and implement reliable distributed systems, focusing on data integrity, transactions, and scalable architecture.

You’ll work on backend services, microservices, and event-driven flows with Kafka, in a cross-functional team spanning Madrid, Barcelona, and Portugal. The role emphasizes collaboration with Product Owners, QA, and other engineering teams.

Qualifications

• 6+ years of backend development with Java/Spring.
• Experience with microservice architectures and distributed systems.
• Knowledge of Kafka or similar messaging platforms, including partitions and ordering.
• Understanding concurrency, locking, and data integrity.
• Experience with relational databases and performance analysis.
• Ability to explain trade-offs and design decisions.
• Experience creating automated tests and collaborating with QA.

Responsibilities

• Design, build, and maintain backend services using Java and Spring.
• Develop microservices and distributed systems for mobility services.
• Handle transactional processes and understand transaction boundaries in Spring.
• Create reliable integrations and event-driven flows using Kafka or equivalent.
• Address concurrency challenges and data integrity concerns.
• Optimize relational databases and query performance.
• Create and maintain automated tests in collaboration with QA.
• Contribute to architectural decisions and communicate trade-offs.
• Collaborate with client and adesso teams in an international environment.

Skills

Java

Spring Framework

Backend development

Distributed systems

Kafka

Relational databases

Concurrency

Automated tests

English communication

Tools

Kafka

Kubernetes

CI/CD

Monitoring

SQL performance tuning

Job description

adesso Spain is assembling a backend team to build and evolve Java/Spring services supporting digital mobility. You will design and implement reliable distributed systems, focusing on data integrity, transactions, and scalable architecture.

You’ll work on backend services, microservices, and event-driven flows with Kafka, in a cross-functional team spanning Madrid, Barcelona, and Portugal. The role emphasizes collaboration with Product Owners, QA, and other engineering teams.