I worked at...
A2I had a job at...
My job was to...
A2My responsibility was to...
I was responsible for...
A2I had the duty of...
I learned to...
A2I acquired the skill of...
I helped with...
A2I assisted with...
I dealt with...
A2I handled...
I used to...
A2I previously did...
I had the opportunity to...
A2I was given the chance to...
Part of my job was...
A2One of my duties included...
I was in charge of...
A2I was responsible for...
My duties included...
A2My responsibilities were...
I worked with...
A2I collaborated with...
I gained experience in...
A2I developed expertise in...
I am experienced in...
A2I have expertise in...
I'm good at...
A2I excel at...
I'm familiar with...
A2I have knowledge of...
I'm comfortable with...
A2I am confident handling...
I quit my job because...
A2I resigned from my position due to...
I left my job to...
A2I resigned to pursue...
I was let go from my job.
A2I was dismissed from my employment.
I gained experience in...
B1I learned and developed skills in a particular area.
I was responsible for...
B1My duties and tasks included...
I worked on...
B1I participated in or contributed to...
I dealt with...
B1I handled or managed...