Looking on the internet deeply has found these results:

when I served as one of the leaders is the most popular phrase on the web.

when I worked as one of the leaders 10 results on the web	when I served as one of the leaders 13 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	... his true essence as a therapist and as a man only came through to me in January and February of 1998, when I served as one of the leaders of The ARK Apr 22, 2014 ... ... came home to me in unexpected ways over the last five years, when I served as one of the leaders at the U.S. Department of Transportation. Oct 19, 2012 ... ... including when I served as one of the leaders of the ANC, the leadership cadre required by the continuing National Democratic Revolution;�... 1998�...

when I worked as one of the leaders

10 results on the web

when I served as one of the leaders

13 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

... his true essence as a therapist and as a man only came through to me in January and February of 1998, when I served as one of the leaders of The ARK
Apr 22, 2014 ... ... came home to me in unexpected ways over the last five years, when I served as one of the leaders at the U.S. Department of Transportation.
Oct 19, 2012 ... ... including when I served as one of the leaders of the ANC, the leadership cadre required by the continuing National Democratic Revolution;�...
1998�...