Identity Front-End Developer at Airitos Georgia

Ellenco Estágios e Treinamentos; Georgia; On-site; USD 90,000 - 150,000; Full time

Job summary

Ellenco Estágios e Treinamentos is seeking an experienced Front-End (UX/UI) Developer to own login and identity flows across web and mobile. The role emphasizes secure UI design, MFA, SSO, and passkeys, with collaboration across identity, backend, and security teams.

The ideal candidate will have 4+ years in front-end or mobile UI development and hands-on experience with authentication SDKs in regulated environments.

Qualifications

• 4+ years in front-end or mobile UI development.
• Experience implementing login, MFA, SSO, OAuth/OIDC or SAML.
• Knowledge of security principles for UI and token handling.

Responsibilities

• Design and build user-facing authentication components across web, Android, and iOS.
• Develop and maintain UI libraries and SDK wrappers for identity services.
• Collaborate with identity architects, backend teams, and security engineers.
• Implement passkey/passwordless flows using FIDO2/WebAuthn.
• Maintain documentation and ensure accessibility and performance.

Skills

React

Mobile UI

Authentication flows

Security best practices

Education

Bachelor's degree in CS or related field

Tools

Authentication SDKs

OAuth 2.0 / OIDC

Job description

About the Role

We are looking for an experienced Front-End (UX/UI) Developer with a background in authentication and identity workflows to join a large, complex enterprise organization on a contract basis. You will be part of a team building a next-generation, centralized authentication platform from the ground up, owning all user-facing login and identity flows across web, Android, and iOS. This role is well-suited for someone accustomed to the governance and change management demands of a large global organization, and who understands the unique UX and security requirements of authentication surfaces. Experience in banking/financial services or other highly regulated industries is a big plus.

Key Responsibilities

• Design and build user-facing authentication components including login pages, multi-factor authentication flows, and account recovery experiences across web, Android, and iOS
• Develop and maintain SDKs and UI libraries that integrate with underlying identity vendor services (Transmit, Ping, Arcus Labs, ThreatMetrix, and others)
• Contribute to the identity Abstraction Layer, a vendor-agnostic library that decouples application teams from specific identity vendor SDKs
• Collaborate with identity architects, backend API teams, and security engineers to ensure UI implementations align with authentication protocols and security requirements
• Implement passkey and passwordless flows using FIDO2/WebAuthn standards
• Build with forward compatibility in mind to support credential consolidation across multiple products and business lines over time
• Maintain documentation for components, integration guides, and change requests in alignment with enterprise change management policies
• Support testing, accessibility compliance, and performance optimization across all platforms

Required Qualifications

• 4+ years of experience in front-end or mobile UI development
• Proficiency in React for web development; experience with React Native, native Android (Kotlin/Java), or native iOS (Swift) for mobile
• Hands-on experience building or integrating with authentication flows: login, MFA, SSO, OAuth 2.0 / OIDC, or SAML
• Familiarity with identity or authentication SDKs (any vendor: Ping, Transmit, Okta, ForgeRock, Auth0, or similar)
• Understanding of security principles as they apply to UI: token handling, session management, secure storage on mobile
• Experience working within large, complex enterprise environments; exposure to regulated industries (financial services, healthcare, government) is a plus

Preferred Qualifications

• Experience with passkeys or FIDO2/WebAuthn implementations
• Familiarity with Transmit Security or Ping Identity products
• Experience building shared UI component libraries or SDK wrapper layers
• Exposure to centralized authentication or single sign-on architecture patterns
• Familiarity with WCAG accessibility standards
• Prior work in financial services, online banking, or other high-stakes consumer-facing digital products is a plus

Contractor Requirements

• Must be based in the United States and authorized to work without sponsorship
• Must be able to pass a background check