Depends on the interviewer, company and job.
Say I saved a million dollars a year by adjusting a configuration setting, no coding required. That might go over well with a business type, but if the interviewer is all about the programming, it doesn't demonstrate technical mastery. There will be no scope for talking about the technical challenges, the languages and databases I used, what I learned from the experience, or how much I enjoyed it and grew as a person and a professional.
Say I introduced source control and automated testing at a medium sized company. Again, the technical work is limited - you can install Jenkins with apt-get, the real challenges are political and educational, changing 'official' workflows and 'supported' software and convincing people to sink time into using the tools for long enough that they can see the benefits which are not immediately apparent. If I'm being interviewed by a young guy at a startup they might think they have no politics so my skills will be useless - or worse that I'll introduce politics. Or it just won't seem like much of an achievement, after all the six of us at this startup switched from bzr to git in an afternoon.
Needless to say, if the original job description says "wanted: someone to teach us source control and automated testing" that would be a different matter :)