HII MISSION TECHNOLOGIES Senior Avionics Systems Engineer | Level 4 | Page 2 of 2. Experience applying Digital Engineering, MBSE, model-based analysis, requirements traceability, architecture modeling, or equivalent data/model-driven systems-engineering methods. Demonstrated experience developing or leading reviews of RFP technical content, SOW/SOO, SRDs, specifications, SEPs, ICDs, DIDs/CDRLs, Technical Orders, contractor technical proposals, ECPs, or authorized technical proposal/source-selection support.