Senior Java Software Engineer

Avenga · Romania · Posted Dec 17, 2025

This is us

 

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.

 

This is the job

Our client is a global technology leader building large-scale digital platforms. You will join a product engineering team developing next-generation booking systems, high-performance APIs, and cloud-native infrastructure. The ecosystem is powered by modern technologies

 

 

This is you

  • 4+ years of hands-on experience with Java (Java 11+).
  • Experience building high-performance, high-load systems.
  • Strong expertise with:
  • REST APIs, Spring Boot
  • Testing frameworks: JUnit, Mockito/PowerMock, WireMock
  • 2+ years of experience with relational databases: MySQL/MariaDB, PostgreSQL, Oracle, DynamoDB.
  • Experience with Redis/Memcached and messaging systems (Kafka, RabbitMQ, ActiveMQ, SQS, Pub/Sub).
  • Cloud experience (AWS preferred: Aurora, Lambda, Step Functions).
  • Fluent English, spoken and written.

 

This is your role

  • Collaborate closely with the client on technical decisions, requirements, and solution design.
  • Take part in new project initiations: architecture design, technology selection, and system setup.
  • Develop and maintain high-performance Java services, APIs, and microservices.
  • Work on dynamic, challenging engineering tasks across multiple projects.