The phrase "unfilled positions" refers to job vacancies that are available but have not yet been filled by someone to work in that role. Full definition
Although jobs in the service and manufacturing sector have become a scarcity, there are apparently still thousands of unfilled positions in other fields, such as health care, technology, and R&D. (sciencemag.org)
The number of unfilled positions in the sector stood at 103,000 in May, marking four of the last five months for which the total number of open positions was greater than 100,000. (eyeonhousing.org)
When it comes to recruiting we often enlist the help of higher education partnerships and invite trainee teachers who have completed their teacher training at the school to apply for unfilled positions. (educationbusinessuk.net)