Companies act where the government is not and push workers to get the jab to get the job. The share of job postings on Indeed requiring vaccination has jumped 90% in just the last month. Vaccination rates in the U.S. are climbing, but hesitancy remains high in certain places. And the Delta variant is foiling companies' return-to-work plans. Now, it's not just front-line jobs at restaurants and shops requiring vaccination. Postings for careers in software development, marketing, and sales are mandating that applicants have the shot too.