Senior Java Backend Engineer - Banking, Spring Boot & Kafka

Expleo; Brussel; Hybrid; EUR 70,000 - 100,000; Full time

Benefits offered by this job

Health insurance

Pension plan

Wellbeing programs

Sports events

Meal vouchers

Eco vouchers

Monthly representation fees

32 vacation days

Flexible homeworking

Job summary

Expleo seeks an experienced Java backend engineer to develop and maintain robust backend services in a fast-paced environment. You will design RESTful APIs, integrate with Kafka and Flink for distributed data processing, and participate in design reviews and automated testing.

Collaboration with Agile/Scrum teams is essential to deliver reliable solutions and quickly resolve production issues. The role emphasizes hands-on coding, technical leadership, and problem solving in complex enterprise

Qualifications

• 6+ years of software development experience.
• Strong hands-on experience with Java / Java 8.
• Strong knowledge of Spring 4 & Spring Boot.
• Experience with REST APIs, Kafka & Flink.
• Good knowledge of SQL and database integration.
• Experience with Maven, Jenkins & Git.
• Hands-on experience with JUnit, Cucumber/Gherkin & WireMock.
• Experience working in an Agile/Scrum environment.

Responsibilities

• Develop and maintain Java backend applications.
• Design and integrate REST APIs and backend services.
• Work with Kafka & Flink for distributed data processing.
• Participate in technical design, code reviews and automated testing.
• Collaborate with Agile/Scrum teams to deliver reliable solutions.
• Support production issues and continuous improvement.

Skills

6+ years exp

Agile/Scrum

Technical communication

Education

Bachelor’s or Master’s degree

Tools

Java / Java 8

Spring 4 & Spring Boot

REST APIs

Kafka & Flink

SQL

Maven, Jenkins & Git

JUnit, Cucumber/Gherkin & WireMock

Job description

Expleo seeks an experienced Java backend engineer to develop and maintain robust backend services in a fast-paced environment. You will design RESTful APIs, integrate with Kafka and Flink for distributed data processing, and participate in design reviews and automated testing.

Collaboration with Agile/Scrum teams is essential to deliver reliable solutions and quickly resolve production issues. The role emphasizes hands-on coding, technical leadership, and problem solving in complex enterprise