Civil Service Administrative Officer (AO) jobs
There are currently 173 AO vacancies open across the Civil Service.
Administrative Officer is the grade most people mean when they talk about a Civil Service job. AO is where the state meets the public: benefit claims, tax enquiries, visa applications, court listings, driving licences. If a member of the public deals with a government department, there is usually an AO on the other side of it.
The distinguishing feature of AO work against AA is judgement within a framework. You are still applying rules rather than writing them, but the cases are less clear-cut, you are trusted to decide more of them without escalating, and you will often be the person explaining a decision to someone unhappy about it. Several departments also use AO as their standard customer-contact grade, which means telephony or face-to-face work as a defined part of the role rather than an occasional extra.
AO vacancies are the highest-volume campaigns on the board by a wide margin, and they are the reason the open-posts count on this tracker is worth checking. A department filling ninety AO posts in one campaign and a department filling one are advertising in exactly the same format, and the official results list does not distinguish them. Your odds are not remotely comparable.
On assessment, AO sits at the same behaviour level as AA but panels expect more independence in the examples. The strongest AO answers describe a situation where the answer was not obvious, say what you weighed up, and say what you decided — a story where you simply followed instructions correctly reads as an AA answer given at AO level.
Live vacancies
HM Prison & Probation Service
AOWrexham£29,107+23 days left
Business Administrator - Offender Management Unit (Ref: 21222)
HM Prison & Probation Service
AOThis position is based at HMP Channings Wood Newton Abbot, TQ12 6DW£29,107+21 days left
Army - Military Personnel Administration & Information Support
Ministry of Defence
AOYork£27,86620 days left
Forestry Commission
AOWestonbirt, South West England, GL8 8QS£30,10520 days left
HMP Bristol - ID & Banking Business Administrator (Ref: 21642)
HM Prison & Probation Service
AOBristol£29,107+20 days left
Operational Support Officer (Ref: 21628)
HM Courts and Tribunals Service
AOBristol£25,58218 days left
Business Administrator (Ref: 21693)
HM Prison & Probation Service
AONewport£29,107+18 days left
Ministry of Defence
AOChicksands, East of England, SG17 5PR£27,86618 days left
202608: Prison Officer - HMP Bedford
HM Prison & Probation Service
AOBedford£36,92817 days left
202608: Prison Officer - HMP Belmarsh
HM Prison & Probation Service
AOLondon£38,84017 days left
202608: Prison Officer - HMP Birmingham
HM Prison & Probation Service
AOBirmingham£34,92817 days left
202608: Prison Officer - HMP Bristol
HM Prison & Probation Service
AOBristol£34,92817 days left
202608: Prison Officer - HMP Brixton and HMP Wandsworth
HM Prison & Probation Service
AOLondon£40,87617 days left
202608: Prison Officer - HMP Bure
HM Prison & Probation Service
AOBadersfield, East of England, NR10 5GB£34,92817 days left
202608: Prison Officer - HMP Hull
HM Prison & Probation Service
AOHull£34,92817 days left
202608: Prison Officer - HMP Humber
HM Prison & Probation Service
AOSouth Cave, Yorkshire and the Humber, HU15 2JZ£34,92817 days left
202608: Prison Officer - HMP Isis
HM Prison & Probation Service
AOLondon£38,84017 days left
202608: Prison Officer - HMP Isle of Wight
HM Prison & Probation Service
AONewport£34,92817 days left
202608: Prison Officer - HMP Leeds
HM Prison & Probation Service
AOLeeds£34,92817 days left
202608: Prison Officer - HMP Littlehey
HM Prison & Probation Service
AOWest Perry, East of England, PE28 0SR£34,92817 days left
202608: Prison Officer - HMP Lowdham Grange
HM Prison & Probation Service
AOLowdham, East Midlands (England), NG14 7DA£34,92817 days left
202608: Prison Officer - HMP Chelmsford
HM Prison & Probation Service
AOChelmsford£34,92817 days left
202608: Prison Officer - HMP Coldingley
HM Prison & Probation Service
AOBisley, South East England, GU24 9EX£36,92817 days left
202608: Prison Officer - HMP Drake Hall
HM Prison & Probation Service
AOSturbridge, West Midlands (England), ST21 6LQ£34,92817 days left
202608: Prison Officer - HMP Durham
HM Prison & Probation Service
AODurham£34,92817 days left
The full board also shows how many posts each campaign is filling, which the official results list does not.
Common questions
- What is the difference between AA and AO in the Civil Service?
- AA work is largely defined and supervised; AO work involves applying judgement within a framework, deciding more cases without escalating, and often dealing directly with the public. AO also pays more and is the more common entry grade.
- How many people do Civil Service AO campaigns usually hire?
- It varies enormously — some AO campaigns fill a single post and others fill dozens across several sites. The official job board does not show this on its results list, which is why this tracker surfaces the number of posts per campaign.
- Do AO jobs involve working with the public?
- Often, yes. AO is the standard customer-contact grade in the large operational departments, so telephony, correspondence or face-to-face service is a defined part of many roles. The job summary on each advert says so explicitly.
- Is AO a good entry point into the Civil Service?
- It is the most common one. AO gives you a substantive grade, access to internal-only campaigns at EO and above, and experience of how a department actually works — which is difficult to evidence convincingly in an application from outside.