Overview The Senior Systems Engineer (L3) at GXA is a highly experienced, hands‑on escalation engineer responsible for resolving complex technical issues across a broad MSP environment. While this role brings deep expertise in networking, firewalls, and infrastructure, it is not limited to networking work . Instead, this engineer serves as the primary escalation point for the most challenging service issues and plays a critical role in strengthening overall service delivery. This position exists to eliminate recurring escalations, reduce cross‑team dependencies, and raise the technical maturity of the service organization . The Senior Systems Engineer partners closely with L1/L2 engineers, service leadership, and project teams to troubleshoot advanced issues, improve standards, and ensure stable, scalable client environments. The ideal candidate has strong, practical networking expertise and solid mid‑to‑high level experience across standard MSP support , including servers, cloud servi...