A leading technology firm is seeking a Senior IT Systems Engineer with active DV clearance in London. Responsibilities include delivering a test environment for a secure messaging system, configuring RedHat OpenShift Platform, and liaising with stakeholders. The role requires on-site presence at least 4 days a week. The ideal candidate will have strong skills in Linux and OpenShift, along with the ability to contribute to build documentation and test plans. #J-18808-Ljbffr