Senior Java Developer for Legacy System Migration Program

Harbor Softworks

Contract · Remote · Flexible hours

About the role

Harbor Softworks is launching an integration project that ties together billing, CRM, and internal APIs. We need a Java Developer – Billing Integration to design, develop, and test the core services that will enable seamless data flow across systems.

Key responsibilities

• Architect and implement micro‑service components using Java and Spring Boot
• Build RESTful endpoints that connect billing, CRM, and internal APIs
• Write unit, integration, and contract tests to ensure reliability
• Collaborate with product owners to translate business rules into technical specifications
• Maintain CI/CD pipelines and support automated deployments
• Monitor performance and troubleshoot issues in production

Must-have skills

• 5+ years of Java development experience
• Strong knowledge of Spring Boot and microservices architecture
• Hands‑on experience with API design and integration patterns
• Proficiency in Docker and container orchestration basics

Nice to have

• Familiarity with billing platforms or CRM systems
• Experience with Kubernetes or cloud services (AWS, GCP)
• Knowledge of event‑driven architectures and messaging queues