Senior Java Developer – Service Reliability Initiative

LumenWorks

Project-based · Remote · Flexible hours

About the role

LumenWorks is launching a security hardening initiative for its cloud‑hosted applications. We need a Java Developer to design, implement, and test hardened services that protect data in transit and at rest.

Key responsibilities

• Audit existing microservice code for security gaps and recommend fixes
• Implement authentication, authorization, and encryption using Spring Security
• Refactor services to follow secure coding standards and OWASP guidelines
• Write automated unit and integration tests to validate hardening measures
• Collaborate with DevOps to ensure secure CI/CD pipelines

Must-have skills

• Strong Java development experience (3+ years)
• Proficiency with Spring Boot and microservice architecture
• Hands‑on knowledge of security best practices for cloud environments
• Experience writing automated tests (JUnit, Mockito)

Nice to have

• Familiarity with AWS security services (KMS, IAM)
• Exposure to container security (Docker, Kubernetes)
• Certifications such as CISSP or AWS Security Specialty