**Req ID**:
We are currently seeking a Software Development Senior Specialist to join our team in Guadalajara, Jalisco (MX-JAL), Mexico (MX).
Position Overview
This position requires hands-on experience implementing and integrating authentication technologies such as SAML 2.0, OAuth 2.0, OpenID Connect (OIDC), Okta, Azure AD, Ping Identity, Auth0, or similar enterprise identity providers.
Key Responsibilities
Application Development Modernization
- 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.
LDAP to SSO Migration
- Analyze existing LDAP authentication flows and user access dependencies.
- Lead migration activities from LDAP authentication to enterprise SSO platforms.
- 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 mínimal business disruption during transition.
Security Compliance
- 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.
Collaboration Delivery
- 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.
Required Technical Skills
Backend Development
- Strong expertise in:
- PHP 7/8+
- Laravel, Symfony, or similar PHP frameworks
- REST API development and integration
- Microservices and backend integration patterns
Frontend Development
- JavaScript / TypeScript
- HTML5 / CSS3
- Modern frontend frameworks preferred:
- Angular
- React
- Vue.js
Authentication Identity Management
- 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
Databases
- MySQL
- PostgreSQL
- SQL optimization and performance tuning
DevOps Cloud
- Git / GitHub / GitLab
- CI/CD pipelines
- Docker preferred
- Basic cloud knowledge:
- AWS
- Azure
- GCP
Required Qualifications




- 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.
- Strong troubleshooting and debugging capabilities in authentication workflows.
- Experience working within Agile delivery environments.
Preferred Qualifications
- Experience with enterprise modernization initiatives.
- Knowledge of Zero Trust security models.
- Familiarity with IAM governance and access lifecycle management.
- Security certifications or IAM-related certifications are a plus.
Soft Skills
- Strong analytical and problem-solving skills
- Excellent communication and stakeholder management
- Ability to work independently in fast-paced environments
- Strong documentation and technical writing abilities
- Collaborative mindset with cross-functional teams
Success Metrics
- Successful migration of legacy LDAP authentication to enterprise SSO
- Minimal downtime and reduced authentication-related incidents
- Improved security posture and compliance alignment
- Increased user authentication efficiency and experience
- Delivery of scalable and maintainable authentication solutions
Nice to Have
- Experience with:
- SCIM provisioning
- RBAC/ABAC authorization models
- API gateways
- Kubernetes
- Enterprise integration middleware
- Exposure to regulated enterprise environments and cybersecurity audits
About NTT DATA

📌 Software Development Senior Specialist (Guadalajara)
🏢 NTT
📍 Guadalajara