Java Software Engineer

Explore Group; Amsterdam; Híbrido; EUR 50.000 - 83.000; A tiempo parcial

Descripción de la vacante

Explore Group in Amsterdam is seeking a Junior to Mid-Level Backend Developer to design, build, test and maintain Java-based microservices. You will work on robust backend applications in a fast-paced engineering environment.

This role is hybrid (2-3 days on-site) with an immediate start under a contract/freelance setup. It emphasizes Spring Boot, microservices, and scalable backend delivery; knowledge of Kafka, SQL/NoSQL, Docker, AWS, and CI/CD is a strong plus and will accelerate career growth.

Formación

• 1 to 3+ years of backend experience with Java, Spring Boot and microservices.
• Experience with SQL or NoSQL databases (Kafka is a strong plus).
• Exposure to AWS, Kubernetes, Docker, and GitLab CI/CD is desirable.

Responsabilidades

• Design, build, test, and maintain resilient Java-based backend applications and microservices.
• Write clean, maintainable code following best practices.
• Contribute to testing, deployment processes, and production support.
• Collaborate with stakeholders to deliver reliable solutions.

Conocimientos

Java

Spring Boot

Microservices

SQL/NoSQL

Kafka

AWS

Docker

Kubernetes

GitLab CI/CD

Educación

Relevant technical education

Herramientas

Kafka

Docker

Kubernetes

GitLab CI/CD

AWS

Descripción del empleo

Junior / Mid-Level Backend Developer (Java / Microservices)

Location: Amsterdam (Hybrid: 2-3 days on-site)

Type: Contract / Freelance

Rate: Up to €60 per hour (dependent on experience)

Start Date: Immediate / As soon as possible

About the Role:

We are looking for driven Junior to Mid-Level Backend Developers to join a dynamic engineering team in Amsterdam. You will play a key role in designing, building, testing, and maintaining robust backend applications and services. This is a fantastic opportunity for an early-to-mid career developer looking to accelerate their growth while working on high-impact, customer-facing applications.

Key Responsibilities:

• Design, build, test, and maintain resilient Java-based backend applications and microservices.
• Write clean, maintainable, and reusable code following established design patterns and best practices.
• Contribute actively to testing activities, basic deployment processes, and production support.
• Collaborate closely with both technical and non-technical stakeholders to deliver reliable solutions.

Requirements & Tech Stack:

• Core Skills: 1 to 3+ years of relevant backend experience with Java, Spring Boot, and microservices.
• Databases & Messaging: Experience with SQL or NoSQL databases (Kafka is a strong plus).
• Cloud & DevOps (Nice to have): Exposure to AWS, Kubernetes, Docker, and GitLab CI/CD.
• Background: A relevant technical education or background, with clear evidence of project impact and a proactive attitude toward learning.
• Soft Skills: Strong analytical thinking, solid communication skills, and growing accountability.