John Steven R.
ELV & Security Systems Design Engineer | CCTV, Fire Alarm, Access Control, Intrusion Detection, BMS,
Santa Cruz de la Sierra,
Bolivia
Global rank:
239,992
/
146,750
Skill pts: 0
Stats
0 followers, 0 following
Joined: March 13, 2026
Last seen: April 29, 2026
Location
Santa Cruz de la Sierra, Bolivia