MI5 exists to protect the UK from threats to our national security, primarily terrorism and threats posed by states.
More than 5,000 people work at MI5, bringing together people with lots of different backgrounds, and lots of different skills. Everyone at MI5 has the same mission: to keep the country safe.
We have roles that you will not find anywhere else, like our investigators and surveillance officers. We also have roles that you’d expect to see at any large organisation, like data analysts and, of course, the security officers who work to keep our buildings safe.
