Back End Developer

Senior Backend Engineer – Backend Java & Spring Boot development

Start date: Beginning May 2026

Contract: till end of 2026 + extension 2027 - B2B

Location: Bucharest on Site

Daily rate: €280 - €300

Languages: English

Seniority: >7 years

Two Senior Backend Engineer – Backend Java & Spring Boot development

Responsibilities: Develop, maintain, test and deploy SpringBoot web portals, applications, components and libraries, using Java and Spring framework. Collaborate with team leads, tech leads business analysts, developers and other testers to understand requirements and ensure consistency and coherence of requirements; Deploy and monitor applications on-prem and in cloud containerized environment

Technology stack:

• Java 17 (preferably 21 or higher)
• Spring Framework 6.x (or higher) & Spring Boot 3.x (or higher)
• JPA / Hibernate
• Web services (REST, SOAP); asynchronous communication using event streaming (Kafka)
• JUnit/TestNG; Mockito or similar mocking framework
• DevOps: Maven, Git, CI/CD pipelines (preferable Azure DevOps), containers (Docker), cloud (preferable Azure)
• Auth/Authz using OIDC/OAuth

Would be a big plus:

• For one profile, we would need experience with integration technologies and micro-services, preferably with Apache Camel (but Spring Integration would be a plus)
• Full stack web development with a JavaScript framework (preferably React)
• Process/workflow engine experience (eg: Temporal)