#NC26ICT190601 - L3 Support Engineer for COTS Applications
Deadline: September 1, 2026
Requester: NATO
Location: Braine L'Alleud, Belgium
Job type: Contractor
Start date: October, 2026
Security clearance: NATO SECRET
SCOPE OF WORK / DUTIES / ROLES
COTS Application Support:
- Deploy and manage server applications running on Windows or Linux servers;
- Integrate applications with identity providers;
- Support creation and deployment of client applications on end-user workstations;
- Gathering and reporting metrics and Key Performance Indicators (KPIs);
- Supporting in-service operations of the systems;
- Support and operation of the assigned system(s) including:
- Systems operationally used by NATO Enterprise community;
- Local systems currently used by Local Commands;
- Atlassian Products management and configuration;
- Maintenance of the operational & support environments;
- Monitoring performance of the assigned service applications;
- Support CIS Support Units (CSU) and other support staff for daily operations of the systems.
Cloud Configuration (Azure, AWS):
- Manage EntraID Groups and Roles;
- Manage and configure different Cloud components.
AI related activities:
- Deployment, configuration and support of AI based solutions, tools and agents;
- Support of COTS applications-AI integration in production environments;
- Ongoing Monitoring, Maintenance and Support.
COTS End-User Support:
- Provision of support services in accordance with the SLA, based on the NCI Agency support levels, roles and responsibilities;
- Provide second-level and third-level support for end-user queries;
- Troubleshoot and resolve software issues, ensuring minimal disruption to users;
- Communicating solutions or advices to customers and users;
- Troubleshoot and resolve software problems, ensuring efficient use of resources and problem resolution.
Incident Logging and Tracking:
- Monitor the incident management process for tickets created in the helpdesk ticketing system;
- Log and track support incidents using the helpdesk ticketing system;
- Ensure all tickets are updated with accurate and detailed information and resolved within the agreed service levels.
Escalation:
- Escalate complex issues to vendor support or appropriate teams when necessary,
- Follow up on escalated issues to ensure timely resolution and user satisfaction.
Knowledge Base Management:
- Contribute to the creation and maintenance of a knowledge base, documenting common issues and solutions;
- Share knowledge and best practices with team members to improve overall service quality;
- Contribute to analysis and documentation of new requirements and change requests;
- Participate in review of documentation such as requirements definitions, software design (functional/technical analysis), systems specifications or other deliverables.
Technical:
- Controlling, managing and providing access to the restricted areas managed by the business area;
- Ensuring the proper functionality and security of software and hardware managed by NBAC;
- Monitoring COTS Applications and other software managed by NBAC by identifying and reporting any problems with the infrastructure, hardware and software applications;
- Providing support to NBAC team for security approval and accreditation of software applications and CIS;
- Controlling and checking compliance with security regulations laid down by NCIA and NATO on the use of software and hardware which is part of the NBAC services;
- Gathering functional and non-functional requirements, including drafting systems specifications;
- Support technical reviews, walkthroughs and audits;
- Support preparation of functional and technical specifications for software and hardware with special focus on the SSBA BA domain;
- Support to change management, configuration management, release/deployment and testing.
Communication and Collaboration:
- Work with and provide input to Service Delivery Managers, Project Managers, Portfolio Managers and other stakeholders;
- Communicate with users to understand their issues and provide clear instructions;
- Collaborate with NCIA and vendors teams.
REQUIRED SKILLS, KNOWLEDGE AND EXPERIENCE
- Deep understanding of end-user devices (desktops, laptops, tablets, smartphones) running Windows OS, Android OS and Apple iPhones/iPads;
- Expert knowledge of Linux server infrastructure, Windows server infrastructure and Active Directory;
- Expert knowledge of Microsoft SQL Server 2019-2025 and IIS based web applications;
- Very good understanding and experience with AI/LLM:
- LLMs knowledge (cloud and on premises based);
- Agentic systems development;
- AI/LLM integration;
- MLOps and AI Lifecycle Management.
- Deep understanding of networking infrastructure;
- Very good knowledge of cloud technologies and cloud deployment for both AWS and Azure;
- Deep understanding of PKI;
- Expert knowledge relevant to software engineering:
- Technologies and standards (at least 4 of them): HTML5, REST & Web Services, XML, HTTP, SQL, Visual Basic for Applications;
- Identity Management (OAuth, OIDC, SAML2) application integration;
- Application server technologies and Relational Database Management Systems;
- Programming languages and platforms - .NET/C#, JAVA, JavaScript;
- Task automation through scripting in both Windows and Linux.
- Deep understanding of security constraints and requirements in CIS;
- Deep understanding of NCIA and NATO security directives and regulations, along with understanding of industry best practices and standards;
- Familiarity with Microsoft services and tools, including Outlook, Teams, SharePoint;
- Experience and good knowledge of at least the following COTS technologies:
- IIS, JBOSS, Apache Tomcat;
- .NET based applications.
- Extensive experience in deployment and management of client-server applications, application integration and data transformation for application integration.
- Strong troubleshooting skills to diagnose and resolve hardware, software, and network issues;
- Ability to guide users through problem-solving steps effectively;
- Excellent verbal and written communication skills;
- Full proficiency in English. French language proficiency is of advantage;
- Ability to communicate technical information to non-technical users in a clear and concise manner;
- Ability to work in cross-functional application management/deployment teams;
- Strong customer service focus with a commitment to user satisfaction;
- Patience and empathy when dealing with user issues and concerns;
- Ability to manage multiple support tickets and prioritize tasks effectively;
- Attention to detail in documenting support activities and maintaining accurate records;
- At least 3 years of relevant experience in the field of computer science or electronic engineering;
- Very good knowledge and in various areas of Software Engineering including some of the following:
- Requirements elicitation and management (including non-functional requirements for Operations & Maintenance);
- SW change management and testing;
- Software design, implementation and testing;
- Software Engineering techniques and methodologies;
- Application release and deployment management;
- Configuration management practices and tools;
- Application Lifecycle Management concept and tools.
- Ability to work effectively as part of a team and share knowledge and resources;
- Willingness to collaborate with colleagues to solve complex issues;
- Candidate has strong customer relationship skills, including negotiating complex and sensitive situations under pressure;
- Candidate must have the nationality of one of the NATO nations;
- Candidate must possess a NATO Secret Security Clearance or national equivalent;
- Prior experience in an international environment comprising both military and civilian elements.
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