Professionally, this placement comes into its own where the work runs through people, aesthetics and long relationships: diplomacy, law, HR at the negotiating level, fashion, design, architecture, art history, psychotherapy, mediation, high-end client service, translation. Anywhere you have to hold several interests in one place and build from them a settlement that suits everyone. In my experience the Libra Sun is strongest as the go-between for two strong sides, and as the keeper of the atmosphere in a team.
A corporate career comes to them through a network of contacts and a reputation as a pleasant partner. They get invited readily to the key meetings, because they're easy to deal with and no conflict flares up in their presence. The catch is that in the hard roles — where you have to sack people, raise prices, hand a supplier an ultimatum — this person falters and often passes the job to a colleague. The ones who reach senior roles usually pick a tough deputy for their team who lifts that load off them.
Money, with this Sun, tends to be earned through relationships rather than through head-on competition. Projects where the client comes back year after year sit well; one-off deals haggled to the last penny sit badly. I'd put it like this: the single most useful career skill for this placement is learning to name your price out loud and not drop it under pressure. Often that one skill is what separates the Libras who've made it professionally from those who spend a whole working life on a little less than they're worth, because asking for more feels awkward.