Senior Support Engineer, Application and CIS Security

Jobtailor; Eigenbrakel; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Jobtailor is seeking an experienced IT security and systems engineer to design and validate secure architectures for NATO/NCIA compliant environments. The role supports Windows and Linux servers, application integration, and identity provider integration.

You will lead threat modeling, manage risk, and coordinate with vendors and NCIA/NATO teams to ensure secure operations and compliant deployments across cloud and on-premises environments.

Qualifications

• Deep understanding of end-user devices and servers in mixed environments.
• Experience with security directives and NATO NCIA requirements.
• Proven ability to manage complex IT deployments and operations.
• Fluency in English with French beneficial.

Responsabilités

• Design and run proofs of concept with evidence-based recommendations.
• Define secure-by-design architectures and review service designs.
• Lead threat modeling and track mitigations in risk register.
• Support deployment and integration of server apps and identity providers.
• Monitor performance and provide KPI reports.
• Coordinate with NCIA, NATO and vendors on security compliance.

Connaissances

Windows OS

Linux

Active Directory

Microsoft SQL Server

AI/LLM

AWS

Azure

HTML5

REST Web Services

Security Engineering

PKI & Post-Quantum

Outils

IIS

JBOSS

Apache Tomcat

Outlook

Teams

SharePoint

EntraID

AI-Based Solutions

Description du poste

• Design and run proofs of concept and produce evidence-based recommendations covering cost, operational impact, lock-in and exit strategy


• Define secure-by-design reference architectures, patterns and hardening baselines; review service designs at architecture gates


• Lead threat modelling, own technical risk register entries, propose mitigations and track remediation


• Support deployment of Windows and Linux server applications


• Integrate applications with identity providers


• Support creation and deployment of client applications on end-user workstations


• Gather and report metrics and KPIs


• Support in-service operations and assigned NATO, local command and Atlassian systems


• Maintain operational and support environments; monitor application performance


• Support CIS Support Units and other staff with daily system operations


• Manage EntraID groups and roles and configure Azure/AWS cloud components


• Deploy, configure and support AI-based solutions, tools and agents


• Support COTS-AI integration in production and coordinate monitoring and maintenance


• Troubleshoot and resolve complex software problems


• Monitor helpdesk incident management, ticket updates and service-level resolution


• Escalate complex issues to vendors or appropriate teams and follow up through resolution


• Create and maintain knowledge-base documentation and share best practices


• Analyze and document requirements and change requests; review technical documentation


• Control access to restricted areas and ensure software/hardware functionality and security


• Monitor COTS applications and report infrastructure, hardware and software issues


• Support security approval/accreditation and compliance with NCIA/NATO regulations


• Gather functional/non-functional requirements and draft system specifications


• Support technical reviews, walkthroughs, audits, change/configuration management, releases, deployments and testing


• Provide input to service, project and portfolio managers and collaborate with NCIA and vendors

Requirements

• Deep understanding of end-user devices running Windows OS, Android OS and Apple iPhones/iPads


• Expert knowledge of Linux, Windows and Active Directory


• Expert knowledge of Microsoft SQL Server 2019-2025 and IIS-based web applications


• Very good understanding and experience with AI/LLM


• Deep understanding of networking infrastructure


• Very good knowledge of AWS and Azure cloud technologies and deployment


• Deep understanding of PKI, certificate management and post-quantum migration


• Expertise in at least four specified software engineering technologies and standards, including HTML5, REST & Web Services, XML, HTTP, SQL, Visual Basic for Applications, OAuth, OIDC, SAML2, .NET/C#, Java and JavaScript


• Deep understanding of security constraints and requirements in CIS


• Deep understanding of NCIA and NATO security directives, regulations, industry best practices and standards


• Familiarity with Outlook, Teams and SharePoint


• Experience with IIS, JBOSS, Apache Tomcat and .NET-based applications


• Extensive experience deploying and managing client-server applications, application integration and data transformation


• Strong technical skills investigating, diagnosing and resolving complex IT issues


• Excellent verbal and written communication skills


• Full proficiency in English; French proficiency advantageous


• Ability to communicate technical information to non-technical users


• Ability to work in cross-functional application management/deployment teams


• Strong customer service focus and commitment to user satisfaction


• Ability to manage multiple projects/activities and prioritize tasks


• Attention to detail in documentation and record keeping


• At least 10 years of relevant experience in computer science or electronic engineering


• Very good knowledge of software engineering areas including requirements management, software change management and testing, secure software engineering, configuration management and application lifecycle management


• Ability to work effectively in a team and share knowledge/resources


• Willingness to collaborate on complex issues


• Strong customer relationship skills, including negotiating complex and sensitive situations under pressure


• NATO nation nationality


• NATO Secret Security Clearance or national equivalent


• Prior experience in an international environment comprising military and civilian elements

Core Competencies

Demonstrates expertise in deploying and managing Windows and Linux server applications, integrating applications with identity providers, and ensuring compliance with NCIA/NATO security directives. Proficient in application performance monitoring, technical risk management, and providing evidence-based recommendations for operational impact.

Highest-signal resume keywords

• Expert Knowledge of Linux


• Expert Knowledge of Windows


• Expert Knowledge of Microsoft SQL Server 2019-2025


• Deep Understanding of Networking Infrastructure


• Extensive Experience Deploying Client-Server Applications

ATS Optimization Keywords

Hard Skills

• Windows OS


• Linux


• Active Directory


• Microsoft SQL Server


• AI/LLM


• AWS


• Azure


• HTML5


• REST & Web Services


• Secure Software Engineering

Soft Skills

• Excellent Verbal and Written Communication Skills


• Strong Customer Service Focus


• Ability to Manage Multiple Projects


• Attention to Detail


• Ability to Work Effectively in a Team

Certifications & Qualifications

• NATO Secret Security Clearance


• National Equivalent Security Clearance

Industry Keywords

• NCIA


• NATO Security Directives


• Certificate Management


• Post-Quantum Migration


• Application Lifecycle Management


• Configuration Management


• Change Management


• Software Testing


• Cross-Functional Teams


• International Military Environment

Tools & Technologies

• IIS


• JBOSS


• Apache Tomcat


• Outlook


• Teams


• SharePoint


• COTS Applications


• EntraID


• AI-Based Solutions


• Ticket Management Systems