# Senior Consultant - Application Production Support Engineer (Security Clearance)

**Company:** [Adservio Luxembourg](null/companies/pXCnp24JhtGsk9yJzDGjbF.md)
**Location:** Luxembourg, Luxembourg
**Workplace:** on site
**Employment type:** Full-time
**Department:** Dev

[Apply for this job](null/view/cd4fec60-f11c-4fa8-9025-a7fe9178704b)

## Description

**Adservio Luxembourg**  
Adservio Luxembourg is the Luxembourg arm of Adservio Group — 300+ consultants across Paris, Brussels and Luxembourg, 15 years serving regulated industries. We opened in Luxembourg in 2022 and work across financial services, energy and utilities, transport and mobility, insurance and the public sector. You join our Technologies & Engineering team.

**The context**  
With our team, you work for an international organisation in the defence sector, based in Luxembourg. Its business applications support critical logistics and operations in a security-classified environment, where availability, traceability and information security are not negotiable. The role is full-time on-site and requires a security clearance.

**Your mission**  
You keep business-critical applications available, and you make sure that every incident is resolved, documented and not repeated.

_Monitor and anticipate_

-   Monitor applications, interfaces and batch chains, and act before users are affected
-   Follow nightly processing and restart or correct failed jobs within the agreed timeframes

_Resolve incidents_

-   Diagnose and resolve level 2 and level 3 incidents, together with development teams and vendors
-   Lead root-cause analysis on recurring problems and follow the fixes through to closure

_Improve and secure the run_

-   Apply the change, release and security procedures of a classified environment
-   Keep runbooks and operating documentation up to date, and automate repetitive checks

**Your profile**  
_What is essential_

-   At least 5 years in application production support on Windows Server environments
-   A valid NATO SECRET security clearance, or a dormant clearance that can be reactivated
-   Proven incident and problem management practice with an ITSM tool such as ServiceNow
-   Hands-on experience with batch scheduling, monitoring tools and SQL for investigation
-   A degree in computer science or IT engineering

_What makes the difference_

-   ITIL Foundation certification
-   PowerShell scripting to automate checks and routine tasks
-   Previous work for an international organisation or in a defence environment

**Languages**  
Required: fluent professional English · Asset: French, German or any other language

**What you find with us**  
**A tribe.** You join a senior peers, for peer reviews and shared technology watch.  
**Recognised expertise.** Subject Matter Expert is a real status with us: other consultants and group clients come to our experts.  
**Regulated environments, across sectors.** Your work sits where compliance is not optional and failure is not acceptable. The run practices you apply here carry over to our work in energy, transport, insurance and the public sector.  
**A practice still being built, with a clear path.** Our Luxembourg office opened in 2022 and is backed by a group of 300+ consultants: what you help set up becomes the way we work. Our grade framework is explicit, with an expert track if you prefer depth over management.

**The process**  
Application → HR conversation → Technical interview with your future peers → Feedback and decision. Whatever the outcome, you will get an answer.