Junior Java Developer

Jobtailor; Deutschland; Vor Ort; EUR 70.000 - 95.000; Vollzeit

Zusammenfassung

Jobtailor in Germany seeks a Java API developer to design and implement APIs (REST, gRPC, GraphQL) and microservices in line with TDD and DevOps practices.

You will join a multidisciplinary team, shaping API strategy, ensuring security and observability, and contributing to CI/CD pipelines and modern integrations across the product stack.

Qualifikationen

• Experience delivering APIs (REST, gRPC, GraphQL).
• Developing Java-based microservices in production environments.
• Knowledge of EAI design patterns (EIP).
• RESTful modeling, API design and security best practices.
• Experience with API lifecycle management and developer portals.
• Data mapping, metrics, and reuse strategies for APIs.
• Canonical data models and Spring ecosystem expertise.
• Test automation and CI/CD pipelines knowledge.
• Version control with Git/Bitbucket.

Aufgaben

• Implement APIs (REST, gRPC, GraphQL).
• Develop and maintain Java microservices.
• Contribute to API design and security considerations.
• Support API lifecycle management and tooling.
• Collaborate on data modeling and reuse strategies.

Kenntnisse

API development

Java programming

RESTful design

Test automation

DevOps practices

EAI design patterns

Kafka/RabbitMQ messaging

CI/CD pipelines

Git/Bitbucket

Tools

Spring Framework

Spring Boot

JUnit

Maven

Git

Bitbucket

Kafka

RabbitMQ

Jobbeschreibung

Overview

Able to create solutions and implement APIs and microservices in Java, following TDD and DevOps practices. Join a multidisciplinary team, developing modern integrations (APIs) in our product and microservices solutions.

Responsibilities

• Implement APIs (REST, gRPC, GraphQL).
• Develop microservices using Java.

Requirements

• Implementation of APIs (REST, gRPC, GraphQL).
• Development of microservices using Java.
• Knowledge of EAI design patterns (EIP - Enterprise Integration Patterns).
• RESTful modeling, API design and security.
• Experience with API Lifecycle Management.
• Practical experience developing an API strategy (data mapping, metrics, reuse, developer portal, partner onboarding).
• Canonical data models.
• Spring Framework and Spring Boot.
• Knowledge of JUnit and Maven.
• Test automation.
• Messaging (preferably Kafka or RabbitMQ).
• Knowledge of source versioning tools (Git, Bitbucket).
• Knowledge of continuous integration and continuous deployment pipelines.