Senior Security Engineer

h3Mission Overview: /h3 pKeystone Solutions is seeking a Senior Security Engineer for a consultancy mission at a client site. In this role, you will ensure the reliable day-to-day operation of security solutions and contribute to projects that evolve and strengthen these systems. /p h3Key

Responsibilities:
/h3 ul liAnalyze and define security requirements. /li liConfigure, support and maintain security tools. /li liManage identity components, user accounts and provisioning processes. /li liSet up and maintain access management components. /li liMonitor security systems and improve observability. /li liDefend systems against unauthorized access. /li liDevelop security procedures and make policy recommendations. /li liProvide technical security advice, including expert guidance on OAuth and OpenID Connect. /li liAdvise staff, managers and executives on security best practices. /li liSupport employee awareness of security procedures. /li liTrain employees in security procedures. /li /ul h3Candidate Profile: /h3 pYou are looking for a hands‑on role combining operational security responsibilities with improvement projects. You want to strengthen identity and access management, authentication, and infrastructure security. You aim to translate security requirements into practical solutions and clear recommendations while sharing your technical expertise and collaborating effectively with colleagues across the organization. You maintain and continuously update advanced knowledge of systems and methods in line with the current state of the art. /p h3Requirements: /h3 ul liExperience working with SSDLC, RUP, and Agile approaches. /li liA good understanding of authentication protocols and providers, including OAuth, OpenID Connect, open LDAP, and Active Directory. /li liSolid knowledge of identity and access management concepts and solutions. /li liKnowledge of application firewalls and web services. /li liPractical scripting knowledge in Linux and/or Windows environments. /li liPrevious experience in network security is considered an asset. /li liKnowledge of web services in Auth0 is a plus. /li /ul h3Personal Attributes: /h3 pYou are an experienced Security Engineer with a practical, solution‑oriented mindset. You are comfortable administering, troubleshooting, and continuously improving security solutions. You are a clear communicator who can provide sound technical advice to different audiences. You are proactive and attentive to reliable operations, security risks, and continuous improvement. You are fluent in Dutch or French (with a good command of the other language) and have a strong command of English. /p h3What

We Offer
/h3 pA pleasant and stimulating working environment with plenty of room for initiative. You will have the opportunity to contribute to security capabilities that support notaries and the public. /p h3Work Environment: /h3 pThis position offers a hybrid working model, with the flexibility to work from home up to three days a week, while two days per week in the office are required. /p h3Duration: /h3 pAs soon as possible
- 31/12/2026 3 months (full time) /p h3Skills required: /h3 ul libActive Directory /b
- Level: Advanced
- Most recent: Any time /li libAgile /b
- Level: Intermediate
- Most recent: Any time /li libIdentity and Access Management (IAM) /b
- Level: Advanced
- Most recent: This year /li libOAuth /b
- Level: Advanced
- Most recent: This year /li libOkta /b
- Level: Intermediate
- Most recent: Any time /li libOpen ID Connect /b
- Level: Intermediate
- Most recent: Any time /li libSailPoint /b
- Level: Nice to have
- Most recent: Any time /li libSSDLC /b
- Level: Intermediate
- Most recent: Any time /li /ul h3Language

requirements:
/h3 ul liDutch or French /li liLevel Full professional proficiency /li liEnglish /li liLevel Full professional proficiency /li liDocuments to be completed /li liNDA_Fednot.docx /li /ul