Contract Operating System Statistics

Contract Job Market Index

Description	Rank 6 Months to 6 May 2026	Rank YoY Change	Median Daily Rate	Median Daily Rate YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
Windows	27	Down -5 places-5	£415	-2.35%	2,836 5.96%	1,134
Linux	51	Down -20 places-20	£500	-9.09%	1,886 3.96%	934
Windows Server	188	Down -49 places-49	£485	-7.61%	658 1.38%	367
Unix	212	Down -62 places-62	£469	-6.20%	549 1.15%	132
Windows 10	237	Down -76 places-76	£200	-11.11%	499 1.05%	117
Android	297	Down -29 places-29	£450	+12.50%	378 0.79%	176
Apple iOS	345	Down -74 places-74	£450	+12.50%	311 0.65%	146
Red Hat Enterprise Linux	378	Down -144 places-144	£500	-9.09%	269 0.56%	82
Mac OS	436	Down -55 places-55	£263	-19.23%	203 0.43%	103
VMS	498	Down -47 places-47	£500	-6.89%	139 0.29%	52
Ubuntu	552	Down -95 places-95	£525	+5.00%	85 0.18%	60
zOS	553	Down -69 places-69	£493	-3.90%	84 0.18%	10
Windows Server 2016	562	Down -137 places-137	£475	+11.76%	75 0.16%	48
Windows Server 2019	564	Down -129 places-129	£500	-	73 0.15%	44
Solaris	565	Down -94 places-94	£481	-14.40%	72 0.15%	40
AIX	575	Down -103 places-103	£421	-11.47%	62 0.13%	11
Windows 7	588	Down -127 places-127	£212	-11.57%	49 0.10%	14
CentOS	596	Down -149 places-149	£525	-19.23%	41 0.086%	26
Windows Server 2012	600	Down -142 places-142	£515	+21.17%	37 0.078%	21
Embedded Linux	604	Down -104 places-104	£425	-15.00%	33 0.069%	68
Mac OS X	615	Down -117 places-117	£314	-21.56%	22 0.046%	1
Data ONTAP	617	Down -101 places-101	£500	+25.00%	20 0.042%	3
Debian	617	Down -100 places-100	£555	+0.90%	20 0.042%	9
Windows Server 2003	619	Down -120 places-120	£173	-68.34%	18 0.038%	1
FreeRTOS	620	Down -100 places-100	£425	-32.00%	17 0.036%	36
Windows Server 2008	624	Down -113 places-113	£525	+49.78%	13 0.027%	6
SUSE	624	Down -111 places-111	£500	-9.09%	13 0.027%	4