Senior Java Developer - Security & Authentication (Keycloak Expert)

Flow RMS Overview
Flow RMS is transforming the manufacturing sales rep and distributor industry with our advanced SaaS platform, powered by AI and automation. We are committed to building high-performance, scalable software that streamlines operations and maximizes efficiency. Our fully remote development team, based in Central and South America, collaborates on innovative solutions that drive real-world impact.
Flow RMS is looking for a Senior Java Developer specializing in security and authentication , with expert-level experience in Keycloak . In this role, you will design, develop, and optimize authentication systems to ensure our platform is secure, scalable, and seamless. You will work closely with our back-end team, DevOps engineers, and product managers to implement best-in-class identity and access management solutions.
Key Responsibilities
- Architect and implement authentication, authorization, and security protocols using Keycloak (OIDC, SAML, RBAC, MFA, User Federation).
- Customize and extend Keycloak with custom providers, authentication flows, and integrations with external identity providers, including Microsoft 365 and Google .
- Develop and enforce API security best practices, including OAuth2, JWT handling, and token management.
- Ensure secure deployment and management of authentication services using AWS, Docker, and Kubernetes .
- Conduct regular security assessments, implement SOC2 best practices , and ensure compliance with industry standards.
- Work closely with cross-functional teams to ensure secure, high-quality code and perform code reviews.
Qualifications
- Expert in Keycloak - Extensive experience configuring, customizing, and optimizing Keycloak for enterprise authentication solutions.
- Java Development - 5+ years of experience in Java, Spring Boot, Quarkus, or similar frameworks .
- Authentication & Security - Strong knowledge of OAuth2, OpenID Connect, SAML, JWT, RBAC, MFA, and security best practices .
- API & Microservices Security - Experience securing RESTful APIs and GraphQL .
- AWS & DevOps - Strong experience with AWS, including IAM, Cognito, Lambda, and API Gateway . Familiarity with Docker and Kubernetes.
- Database & Identity Management - Experience with PostgreSQL, Redis, LDAP, and Identity Federation .
- Security Best Practices - Understanding of encryption, secure session management, and zero-trust security models.
- Problem Solver - Ability to troubleshoot authentication issues, optimize security, and enhance system performance.
- Remote Collaboration - Strong communication skills and ability to work independently in a remote team.
Preferred Skills
- Experience integrating Keycloak with Microsoft 365 authentication :
- Familiarity with SOC2 compliance and industry security certifications
- Knowledge of CI/CD pipelines, Terraform, and Ansible :
- Understanding of WebSockets, event-driven security models, and real-time authentication
Why Join Flow RMS?
- Work with a cutting-edge tech stack in a high-impact industry.
- Be part of a fast-growing SaaS company that values security-first development.
- Fully remote role with flexible work arrangements (must be available during EST business hours).
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Pay: $1,000,000.00 - $1,300,000.00 per year
Work Location: Remote