Senior Java Authentication Platform Architect (Remote)

Eliassen Group; United States; Remote; USD 110,000 - 117,000; Full time

Job summary

Eliassen Group is seeking a Sr. Java Developer to lead the design and build of a custom authentication platform for a portfolio of consumer-facing websites.

The role focuses on identity, authentication, authorization, and application security leadership rather than traditional feature development. You will guide architecture, advise senior Java engineers, and drive secure, scalable implementation patterns while collaborating with engineering, architecture, product, and senior leadership

Qualifications

• Approximately 10+ years in software engineering, application security, or related fields.
• Deep expertise in authentication, authorization, identity management, and application security.
• Direct experience building or leading an enterprise authentication platform.
• Strong understanding of modern authentication standards and security practices.
• Experience with Java-based applications, microservices, and Spring technologies.
• Knowledge of SSO, SAML, JWT, one-time passwords, and passwordless authentication.

Responsibilities

• Lead the architecture and design of a custom authentication platform for multiple websites.
• Evaluate open-source authentication frameworks and recommend a secure platform.
• Provide expertise across authentication, authorization, identity management, and application security.
• Partner with senior Java architects to establish technical direction.
• Guide implementation using Java, microservices, Spring, and Spring Security.
• Define secure architectural patterns for user authentication across sites and applications.
• Advise on SSO, federated identity, token-based authentication, and passwordless options.
• Establish security standards, technical controls, and implementation guidelines.
• Identify architectural risks, vulnerabilities, and operational challenges early.
• Provide practical guidance based on authentication-platform experience.

Skills

Architecture leadership

Identity engineering

Authentication

Application security

Tools

Java

Spring

Spring Security

Job description

Eliassen Group is seeking a Sr. Java Developer to lead the design and build of a custom authentication platform for a portfolio of consumer-facing websites.

The role focuses on identity, authentication, authorization, and application security leadership rather than traditional feature development. You will guide architecture, advise senior Java engineers, and drive secure, scalable implementation patterns while collaborating with engineering, architecture, product, and senior leadership