I am a System & Platform/Bus independent consultant.I have acquired this experience through working at subcos, SAFT, AIRLIQUIDE, SODERN, then at primessatellite manufacturer like Thales, OHBI, Airbus, finally at operators with SES.My expertise is based on 23 years of experience in the procurement of S/C sub systems, along the various reviews, Spec defintions, EQSRs,PDRs, CDRs,AIT/AIV until in orbit hands off to Ground.Proven hands on experience, ability to challenge solutions, for LEO constellations, GEO S/C or LEO optical/IR S/C.Having developped launchers in the past for 3 years, I am a good interface with launch vehicle service provider.Recent experiences :Optical payload satellite development [SES].Spacecraft procurement O3B network [SES].NEO SAT procurement [SES].