Operating System Statistics in Hertfordshire

Permanent Job Market Index

Description	Rank 6 Months to 13 Oct 2026	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
Windows	11	Down -5 places-5	£36,500	-29.12%	179 7.32%	55
Windows Server	46	Down -34 places-34	£40,000	-24.17%	71 2.91%	23
Linux	76	Down -39 places-39	£75,000	+36.36%	36 1.47%	33
Windows 10	88	Down -26 places-26	£38,250	+15.03%	24 0.98%	7
Apple iOS	88	Down -29 places-29	£26,500	-20.89%	24 0.98%	6
macOS	99	Down -45 places-45	£18,000	-64.17%	13 0.53%	6
Windows Server 2019	101	Down -38 places-38	£42,000	-	11 0.45%
Windows Server 2016	104	Down -27 places-27	£42,000	+50.00%	8 0.33%
Android	105	Down -50 places-50	£46,250	+15.62%	7 0.29%	5
Red Hat Enterprise Linux	105	Down -36 places-36	£55,000	+26.43%	7 0.29%	7
CentOS	107	New entry-	£70,000	-	5 0.20%
Rocky	108	New entry-	-	-	4 0.16%
Embedded Linux	108	New entry-	-	-	4 0.16%	2
Windows Server 2012	111	Down -32 places-32	£65,000	+4.00%	1 0.041%
Windows Server 2008	111	New entry-	£65,000	-	1 0.041%
Windows 7	111	New entry-	£30,000	-	1 0.041%
Ubuntu	111	New entry-	£70,000	-	1 0.041%