systems engineer
Loanword from English; refers to an IT professional who designs and manages computer systems. Often abbreviated as SE.
彼は大手IT企業でシステムエンジニアとして働いている。
He works as a systems engineer at a major IT company.
システムエンジニア is the full Japanese term for a systems engineer, while ＳＥ is the common workplace abbreviation.
Variant with interpunct; less common in running text.
Borrowed from English 'systems engineer'.