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NTT DATA Logo NTT DATA · IT - Software Development

Software Development Senior Specialist

Mexico, Guadalajara Employment contract · Job Posted May 31, 2026
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Job Description

We are seeking a highly skilled Full Stack Developer specialized in PHP and Identity & Access Management (IAM) to support the modernization and migration of enterprise applications from traditional LDAP-based authentication to a modern Single Sign-On (SSO) architecture.

Job Responsibility

  • Design, develop, enhance, and maintain full stack web applications using PHP and modern frontend technologies
  • Refactor existing authentication modules and legacy LDAP integrations
  • Implement secure authentication and authorization mechanisms aligned with enterprise security standards
  • Develop reusable APIs and middleware services for authentication orchestration
  • Analyze existing LDAP authentication flows and user access dependencies
  • Lead migration activities from LDAP authentication to enterprise SSO platforms
  • Integrate applications with Identity Providers (IdPs) using SAML 2.0, OAuth 2.0, OpenID Connect (OIDC)
  • Support user federation, role mapping, token validation, and session management
  • Troubleshoot authentication issues during migration and cutover phases
  • Ensure backward compatibility and minimal business disruption during transition
  • Apply secure coding standards and cybersecurity best practices
  • Ensure authentication flows comply with enterprise IAM governance and audit requirements
  • Participate in vulnerability remediation and penetration testing support
  • Manage encryption, token security, session expiration, and secure credential handling
  • Work closely with Enterprise Architects, Security Teams, DevOps Engineers, and Infrastructure teams
  • Participate in Agile ceremonies including sprint planning, backlog refinement, demos, and retrospectives
  • Provide technical documentation, architecture diagrams, and migration runbooks
  • Mentor junior developers and contribute to technical best practices

Requirements

  • Bachelor's degree in Computer Science, Information Technology, Software Engineering, or related field
  • 5+ years of experience in full stack software development
  • 3+ years of experience implementing authentication and SSO solutions
  • Proven experience migrating applications from LDAP to SSO architectures
  • Strong troubleshooting and debugging capabilities in authentication workflows
  • Experience working within Agile delivery environments
  • Strong expertise in PHP 7/8+
  • Laravel, Symfony, or similar PHP frameworks
  • REST API development and integration
  • Microservices and backend integration patterns
  • JavaScript / TypeScript
  • HTML5 / CSS3
  • Modern frontend frameworks preferred: Angular, React, Vue.js
  • Strong experience with LDAP / Active Directory, Single Sign-On (SSO), Identity Federation, Multi-Factor Authentication (MFA)
  • Experience implementing SAML 2.0, OAuth 2.0, OpenID Connect (OIDC)
  • Experience with enterprise IdPs such as Okta, Azure AD / Entra ID, Ping Identity, Auth0, ADFS
  • MySQL
  • PostgreSQL
  • SQL optimization and performance tuning
  • Git / GitHub / GitLab
  • CI/CD pipelines
  • Docker preferred
  • Basic cloud knowledge: AWS, Azure, GCP

Nice to have

  • Experience with enterprise modernization initiatives
  • Knowledge of Zero Trust security models
  • Familiarity with IAM governance and access lifecycle management
  • Experience supporting highly available enterprise applications
  • Security certifications or IAM-related certifications are a plus
  • Experience with SCIM provisioning
  • RBAC/ABAC authorization models
  • API gateways
  • Kubernetes
  • Enterprise integration middleware
  • Exposure to regulated enterprise environments and cybersecurity audits
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