The phrase "after gaining experience" is correct and usable in written English.
You can use it to indicate that something occurs following the acquisition of knowledge or skills through practice or exposure.
Example: "After gaining experience in the field, she felt more confident in her abilities."
Alternatives: "upon acquiring experience" or "after acquiring skills".
One rat with hippocampal lesions was removed from the experiment after gaining experience of swimming in the pool during the passive training, which resulted in the hippocampal group containing 12 rats.
After gaining experience as an assistant conductor at Bayreuth, in 1902 he conducted the first French performance of Wagner's music drama Götterdämmerung (The Twilight of the Gods).
After gaining experience in Europe with Carter Berlind, Mr. Edelman set himself up in business, emerging in the 1980's as one of America's best-known takeover investors.
After gaining experience in both traditional and modern jazz, he joined John Stevens's Spontaneous Music Ensemble, with which he helped pioneer the free-improvisation idiom in the late 1960s.
After gaining experience at European hotels including the Excelsior in Cologne and Claridge's, Mr. Ortlieb was general manager of both Mondrian in West Hollywood and then the Beverly Hills Hotel.
After gaining experience as assistant superintendent of the Central Railroad of New Jersey, he incorporated the Gilbert Electric Railway Company on June 17 , 1872 to build elevated lines in New York City.
Born in the shipping port of Briton Ferry on Swansea Bay, Williams was rejected by Swansea Town after a trial, gaining experience as a teenaged guest for Belfast Celtic and Cliftonville in wartime football.
After building clientele and gaining experience, you may choose to venture out on your own.
Characters progress and grow by gaining experience points after a battle, discovering crest graphs, finding ARMs, and mastering sword techniques prompted by various events in the game.
But simple math tells you top people are rare; their training costs are high, and after they gain experience, many will jilt you to start their own companies.
In fact, their protocol is no more than a small set of written guidelines that nurses hardly ever use after having gained experience with it for some months, because (to quote the nurses) 'TGC is something you do by heart, not from a sheet of paper'.
