Flight Simulation, synthetic environment, network security, security clearedNetwork Security Engineer required to secure security classification approval or accreditation for simulation and synthetic virtual Training products. Skills Secure coding Security clearance, DV or above. Encryption algorithms and cryptographic protocols. Modelling and Simulation experience with knowledge of DIS and HLA Interoperability Standards. C++, C#, Java and Python COTS simulation, gaming products or specialist simulation tools including VR Forces, VBS2, 3 or4, MS Flight Sim, Prepar3d, Unity, Unreal, Xplane, FlightGear or similar. Role Achieve security approval or accreditation and Authority to Operate ATO for IT and CIS systems in a MOD Training Environment using Modelling and Simulation Tools.