Technical project manager & security connectivity engineer M/F

We are looking or a Technical project manager & security connectivity engineer.

Location: Luxembourg - Findel
Contract: Until 15 December 2026
Start: ASAP
Context: Office relocation - network deployment + user subnet & firewall rule migration

• building and commissioning a new Arista Type‑1 network (~1,500 ports), and
• the assessment, migration, testing and decommissioning of user subnets and security connectivity rules (ACRs).

• Validate requirements, design baseline, constraints and dependencies.
• Check network capacity (switch ports, IP addressing, circuit/cross‑connect utilisation).
• Coordinate IP assignment (MIRA / NCP) and distribute IP/subnet data.
• Update documentation (NetApp(s), Site Builder, CTM, Virtual Container, NCE outputs, Excel sheets).
• Organise configuration reviews and track findings & approvals.
• Coordinate staging readiness, cabinet elevation planning and patching schedule.
• Prepare CHG packs; support implementation (configuration execution, ZTP/CVP, cutover tests).
• Ensure step, rollback and test plans are agreed and followed.
• Coordinate the 4‑eyes implementation plan and approval evidence.
• Finalise closure: handover, documentation and lessons learned.

• Build the user subnet inventory using Netbase (source of truth).
• Run Eagle Eye reports (src/dst, last‑used timestamps, ports/applications).
• Present results to ITAOs and support iterative analysis.
• Maintain the Rules to Remain register (retain/review/retire + rationale).
• Support onboarding of new user subnets and creation of new ACRs.
• Support testing of new ACRs (connectivity validation, rule hits, troubleshooting).
• Support decommissioning of old ACRs with evidence traceable to the analysis register.
• Maintain an activity log (reports, workshops, ACR support).

• Experience in technical project management in network or infrastructure environments.
• Understanding of firewall rules, ACRs, connectivity flows and change governance.
• Ability to interpret technical reports and maintain structured documentation.
• Comfortable coordinating technical teams and business stakeholders.
• English and German mandatory.