Senior Java Backend Engineer (Spring Boot / IAM Integration) - REMOTE

Pay range: $60/hr to $70/hr on C2C/1099/W2 (NEGOTIABLE based on experience and engagement terms) We are looking for a Senior Java Backend Engineer with strong experience in Spring Boot, API development, and enterprise-scale system design. The role focuses heavily on building and integrating Identity and Access Management (IAM) web services with external platforms such as Microsoft and Twilio, along with internal directory systems. Skillset required: Java development experience Knowledge of Spring Boot Knowledge of JUnit automated testing Requirements gathering experience Experience designing APIs and architecting a large-scale, enterprise level systemExperience writing in Java 17+Experience with mocking frameworks for testing like Mockito Experience with designing/implementing web services in Java/Spring Boot that can integrate with external platforms like Twilio, Microsoft, and an on-premises directory systemExperience writing extensive documentation using Markdown and Javadocs Experience using Maven as the build tool for Java projects Ability to work independently and be proactive

Nice to Have: Experience with Microsoft Azure ecosystem, including:

• Microsoft Graph APIEntra ID (Azure AD)
• Azure DevOpsExperience working with LDAP / on-premises directory systems
• Exposure to IAM (Identity & Access Management) systems
• Ability to quickly learn and integrate new APIs and libraries