L3 Support Engineer — Commercial Applications and Cloud Identity for NATO with security clearance

L3 Support Engineer — Commercial Applications and Cloud Identity for NATO with security clearance Third-line on a portfolio of commercial applications — Atlassian, identity integration, cloud configuration, and the first real AI deployments alongside them. Third line is where the tickets arrive that nobody else could close. This post covers a portfolio of commercial applications running on Windows and Linux servers: deploying them, integrating them with identity providers, keeping them healthy, and answering for them when they are not. Alongside the established estate there is genuinely new work — deploying and supporting AI-based tools and agents, and integrating them with the existing applications in production. What you would be doing Deploy and manage server applications on Windows and Linux. Integrate applications with identity providers, and support client deployment to end-user workstations. Manage and configure Atlassian products across the estate. Maintain the operational and support environments, and monitor application performance. Manage identity groups and roles, and configure cloud components across Azure and AWS. Deploy, configure and support AI-based solutions and agents, and their integration with the applications. Provide second and third line support for end-user queries, and resolve software problems with minimal disruption. Monitor the incident process, keep tickets accurate and resolve within the service levels. Escalate to vendor support where that is genuinely the answer, and follow it through. Build the knowledge base and contribute to requirements analysis and change requests. Support security approval and accreditation of applications, and check compliance with the applicable regulations. What you would bring Deep knowledge of Microsoft SQL Server and IIS-based web applications. Good knowledge of cloud deployment on both AWS and Azure, and a solid grasp of PKI and networking. Software engineering breadth: HTML5, REST and web services, XML, HTTP, SQL, plus identity integration with OAuth, OIDC or SAML2. Experience with IIS, JBoss or Apache Tomcat, and .NET applications. Extensive experience deploying and managing client-server applications and application integration. Strong troubleshooting and a genuine service orientation — this role is judged on how users get on. Full proficiency in English; French is an advantage. Half of the working days each month are on site in Braine-l'Alleud. Department IT Support Locations Braine-l'Alleud Remote status Hybrid Braine-l'Alleud About WLG Work Life Group Sp. z o.o., agencja zatrudnienia (employment agency) KRAZ no. 19578. NIP 7010247728. ul. Nowogrodzka 50/54 lok. 515, 00-695 Warszawa, Poland.