The phrase "a smooth job" is correct and usable in written English.
It can be used to describe a task or work that is done easily and without complications.
Example: "The project was completed ahead of schedule, and the team did a smooth job executing the plan."
Alternatives: "a seamless task" or "an effortless job".
In this Second Stage Theater production, the director, Hal Brooks, does a smooth job of helping us over the more awkward transitions.
By the end of the movie Chris, who has done a smooth job of directing, seems almost as blank as he did at the beginning.
If "Return to Never Land," directed by Robin Budd, from a screenplay by Temple Mathews, doesn't have a story to match the original's in breadth and imagination, it does a smooth job of recycling its characters and themes.
In his message to Vojislav Kostunica, whose election was certified this week only after a popular uprising that eventually forced Mr. Milosevic to relinquish power, Mr. Jiang wished the new president "a smooth job in his new lofty position and remarkable achievements in his endeavors towards the stability and prosperity of Yugoslavia," according to a report by the New China News Agency.
Chris Sizemore did a smooth job as Chris' well-intentioned buddy, John.
For a really smooth job, use an airless sprayer with a.017 gun tip.
"A very smooth job," the captain said.
On Tuesday, Senator Barack Obama did his best to reclaim for Democrats the idea of partnerships between government and grass-roots religious groups — and except for six little words he did a very smooth job.
James Nesbitt – one of the dwarves, and he did a very smooth job hosting the Bifas last week – told me that after 300 days of shooting, and more than 1,000 hours in prosthetics and makeup in New Zealand, he'd proudly taken his wife to watch the film.
Mr. Hummel did a really smooth job of using Agent Ornellas' testimony to help out former Sgt. Arneson.
