Senior Java Developer

TechBiz Global GmbH; Bernau; Vor Ort; EUR 60.000 - 85.000; Vollzeit

Zusammenfassung

A leading company in the recruitment services sector is looking for a Senior Java Developer for a 6-month contract with potential extension. In this role, you will design and develop robust Java-based applications, ensure the efficient deployment of cloud infrastructure, and collaborate closely with both German and English-speaking teams. This opportunity is suited for candidates with strong expertise in Spring Boot, AWS, and CI/CD processes, alongside excellent leadership and communication skills.

Qualifikationen

• 8+ years of commercial experience with Java.
• Strong expertise with Spring/Spring Boot and cloud-native development.
• Experience with CI/CD practices and DevOps workflows.

Aufgaben

• Design, develop, test, and maintain scalable Java applications.
• Coordinate with stakeholders and collaborate with offshore teams.
• Guide and mentor junior developers.

Kenntnisse

Java

Spring Boot

Cloud-native development

CI/CD

REST APIs

Git

Agile methodology

Team leadership

Communication

Tools

AWS

Jobbeschreibung

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At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Senior Java Developer to join one of our clients ' teams with 6 months contract with possibility to extend . If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

Design, develop, test, and maintain scalable Java-based backend applications.

Write clean, efficient, and well-documented code using Java 11+ and Spring Boot .

Design and implement RESTful APIs and microservices architectures.

Optimize performance and ensure high availability of backend components.

Conduct code reviews, unit testing, and integration testing.

Troubleshoot and resolve complex technical issues across environments.

Participate in AWS infrastructure optimization and implementation:

Multi-account structure setup via AWS Organizations

Security hardening (IAM policies, SSM Secure Strings)

Deployment pipelines using AWS CDK and Infrastructure as Code (IaC)

Cost-efficiency strategies including Aurora Serverless , rightsizing, and savings plans

Work closely with DevOps/Cloud teams to ensure smooth CI/CD processes.

Coordinate and communicate regularly with German-speaking stakeholders ( C1 German required ).

Collaborate with offshore team members in Vietnam ( English B2+ required ).

Take initiative in planning, prioritizing, and delegating development tasks.

Provide technical mentorship to junior developers as needed.

Requirements:

8+ years of commercial experience with Java

Strong expertise with Spring/Spring Boot , JPA/Hibernate, REST APIs

Solid background in cloud-native development with AWS

Experience with CI/CD , Git, and modern DevOps workflows

German – C1 level (mandatory)

English – B2 level (for internal collaboration)

Strong communication, organizational, and team leadership skills

Experience working in agile/Scrum environments

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