Senior Extreme Networks Engineer/Consultant Required – Extreme Fabric Connect (SPB) Migration

---

Duration: 2 months+ | Start: 12/2026 | Remote: 80%

Beschreibung

IT
Network Configuration and Change Management
Network Architecture
Network Engineering
Network Information Services
Extreme Programming
Description
Energize are looking for a Senior Extreme Networks Consultant to support a critical infrastructure (KRITIS) customer in Hamburg, focusing on the design and migration of an existing Layer 2/Layer 3 network to Extreme Fabric Connect (SPB).

The initial phase will focus on network design, requiring a technically strong consultant to validate network concepts and provide expert guidance, before a potential longer-term extension into the hands-on implementation/integration phase, involving the configuration and migration of Extreme Networks infrastructure.

Key Requirements:
Senior Network Engineer / Consultant with extensive hands-on Extreme Networks experience
Strong expertise in Extreme Fabric Connect (SPB), including design, configuration and implementation
Proven experience migrating live Layer 2/Layer 3 networks to Extreme Fabric Connect
In-depth knowledge of Fabric Engine (VOSS), Switch Engine (EXOS) and Extreme switching/routing
Good understanding of SPB technologies, including IS-IS, L2/L3 VSNs, Fabric Attach and SMLT/vIST
Experience developing and validating network designs, migration plans and cutover strategies
Hands-on experience configuring Extreme Networks switches, routers and core switches
Experience in critical infrastructure (KRITIS), OT or comparable high-availability environments
Understanding of OT network segmentation, availability and legacy infrastructure integration
Strong technical consulting skills, with the ability to review and challenge network designs
German fluent required

Details:
Start date: Mid-January 2027 (mid-December 2026 also possible)
Contract duration: Initial contract until the end of February 2027, with potential long-term extensions (next phase of project)
Capacity: Part-time initially, approximately 10 working days across 1–2 months (30–40% per week)
Location: Hamburg, Germany – Initial phase fully remote; up to 2 days per week on-site during potential implementation
German fluent required
If this opportunity sounds like a great match for you, please reply with your CV and we can arrange a call.