Senior Java Developer
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.
Java Development
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Design, develop, test, and maintain scalable Java-based backend applications.
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Write clean, efficient, and well-documented code using Java 11+ and Spring Boot.
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Design and implement RESTful APIs and microservices architectures.
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Optimize performance and ensure high availability of backend components.
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Conduct code reviews, unit testing, and integration testing.
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Troubleshoot and resolve complex technical issues across environments.
☁️ Cloud & Infrastructure (AWS):
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Participate in AWS infrastructure optimization and implementation:
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Centralized monitoring via CloudWatch alarms
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Multi-account structure setup via AWS Organizations
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Security hardening (IAM policies, SSM Secure Strings)
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Deployment pipelines using AWS CDK and Infrastructure as Code (IaC)
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Cost-efficiency strategies including Aurora Serverless, rightsizing, and savings plans
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Work closely with DevOps/Cloud teams to ensure smooth CI/CD processes.
Team Collaboration & Coordination
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Coordinate and communicate regularly with German-speaking stakeholders (C1 German required).
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Collaborate with offshore team members in Vietnam (English B2+ required).
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Take initiative in planning, prioritizing, and delegating development tasks.
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Provide technical mentorship to junior developers as needed.
Requirements
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8+ years of commercial experience with Java
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Strong expertise with Spring/Spring Boot, JPA/Hibernate, REST APIs
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Solid background in cloud-native development with AWS
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Experience with CI/CD, Git, and modern DevOps workflows
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German – C1 level (mandatory)
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English – B2 level (for internal collaboration)
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Strong communication, organizational, and team leadership skills
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Experience working in agile/Scrum environments