Senior Security Engineer — IAM & App Security (Hybrid)

Keystone Solutions; Brussel Hoofdstad; Hybrid; EUR 75,000 - 110,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Keystone Solutions seeks a hands-on Senior Security Engineer for a consultancy mission at a client site, combining operational security with improvement projects. You will strengthen identity and access management, authentication, and infrastructure security, translating requirements into practical solutions while sharing expertise across the organization.

You will stay current with state-of-the-art security practices, advising across staff and executives, and contributing to secure operations

Qualifications

• Experience with SSDLC, RUP, and Agile approaches.
• Strong understanding of authentication protocols and providers (OAuth, OpenID Connect, OpenLDAP, Active Directory).
• Solid knowledge of IAM concepts and solutions.
• Knowledge of application firewalls and web services.
• Scripting in Linux and/or Windows environments.
• Previous experience in network security is a plus.
• Knowledge of Auth0 web services is a plus.

Responsibilities

• Analyze and define security requirements.
• Configure, support and maintain security tools.
• Manage identity components, user accounts and provisioning processes.
• Set up and maintain access management components.
• Monitor security systems and improve observability.
• Defend systems against unauthorized access.
• Develop security procedures and make policy recommendations.
• Provide technical security advice, incl. guidance on OAuth and OpenID Connect.
• Advise staff, managers and executives on security best practices.
• Support employee awareness of security procedures.
• Train employees in security procedures.

Skills

Active Directory

AGile

Identity and Access Management

OAuth

Okta

Open ID Connect

SailPoint

SSDLC

Job description

Keystone Solutions seeks a hands-on Senior Security Engineer for a consultancy mission at a client site, combining operational security with improvement projects. You will strengthen identity and access management, authentication, and infrastructure security, translating requirements into practical solutions while sharing expertise across the organization.

You will stay current with state-of-the-art security practices, advising across staff and executives, and contributing to secure operations