Senior Java Developer

4 Months ago • 4-8 Years • Backend Development

Job Summary

Job Description

This Senior Java Developer role requires expertise in Java JDK and Spring frameworks to design, develop, and maintain robust backend systems and services. Responsibilities include developing, testing, and maintaining backend applications, implementing and optimizing backend services (security, database management, web services), working with technologies like Spring Security, Spring Data JPA, Hibernate, Kafka, Redis, and Zuul Gateway, managing PostgreSQL databases, collaborating on BPMN/DMN engine integration (Camunda, Zeebe, Drools KIE), developing secure authentication protocols (Keycloak, OAUTH2, JWT, SAML, LDAP), and writing unit tests (Assertj, JUnit). Experience with Maven and Git is essential. Familiarity with BPMN and DMN engines is a plus.
Must have:
  • Proficiency in Java JDK and Spring frameworks
  • API and backend system development experience
  • PostgreSQL database management
  • Unit testing and authentication mechanisms (OAUTH2, JWT, SAML, LDAP)
  • Version control and dependency management
Good to have:
  • Experience with BPMN and DMN engines (Camunda, Drools)
  • Excellent communication and teamwork skills

Job Details

Description

Job Description:
We are seeking a highly skilled Backend Developer with a strong foundation in Java and Spring frameworks to join our dynamic team. The ideal candidate should possess expertise in designing, developing, and maintaining robust backend systems and services. Candidates with experience in BPMN and DMN engines are highly preferred, although not mandatory.

Key Responsibilities:

  • Develop, test, and maintain backend applications using Java JDK and Spring frameworks.
  • Implement and optimize backend services, including security, database management, and web services.
  • Work with technologies such as Spring Security, Spring Data JPA, Hibernate, Kafka, Redis, and Zuul Gateway.
  • Manage databases with PostgreSQL or similar database management systems.
  • Collaborate with the team to integrate BPMN engines (Camunda, Zeebe) and DMN engines (Drools KIE) when needed.
  • Develop and maintain secure authentication protocols using Keycloak (OAUTH2, JWT, SAML, LDAP).
  • Write efficient unit tests using tools such as Assertj and JUnit.
  • Utilize build and version control tools like Maven and Git for efficient project management.

Requirements

Required Skills:

  • Proficiency in Java JDK and Spring frameworks (Security, Data JPA, Web, Hibernate, Kafka, Redis).
  • Strong experience in developing APIs and backend systems.
  • Knowledge of Zuul Gateway and database management with PostgreSQL.
  • Familiarity with BPMN and DMN engines (Camunda, Zeebe, Drools KIE) is a plus.
  • Hands-on experience with unit testing frameworks and tools.
  • Experience with authentication mechanisms (OAUTH2, JWT, SAML, LDAP).
  • Good understanding of version control systems and dependency management tools.

Preferred Skills (Nice to Have):

  • Experience with BPMN and DMN engines, such as Camunda or Drools.

Soft Skills:

  • Strong problem-solving abilities.
  • Excellent communication and teamwork skills.
  • Ability to adapt to new technologies and methodologies quickly.

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