Software Library & Framework Statistics in Hertfordshire

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There is a choice between 3 and 6 months to 14 November 2026 with year-over-year comparisons.

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Results 1 - 50 of 61

Permanent Job Market Index
Description	Rank 6 Months to 14 Nov 2026	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
.NET	52	Up 17 places+17	£60,000	+41.17%	79 3.09%	13
.NET Core	76	Up 12 places+12	£60,000	-	49 1.92%	1
RESTful	83	New entry-	£72,500	-	41 1.60%	5
ASP.NET	85	No change0	£60,000	+41.17%	38 1.49%	2
ASP.NET Core	85	New entry-	£60,000	-	38 1.49%	2
CSS	92	Down 41 places-41	£40,000	-27.27%	31 1.21%	10
HTML	96	Down 43 places-43	£37,500	-31.81%	27 1.06%	9
Kafka	97	Down 11 places-11	£72,500	-15.45%	26 1.02%	3
FastAPI	98	New entry-	£72,500	-	25 0.98%	6
Swagger	99	New entry-	£72,500	-	24 0.94%	1
RabbitMQ	99	Down 11 places-11	£72,500	-27.50%	24 0.94%	3
Blazor	99	New entry-	£52,500	-	24 0.94%	1
OpenAPI	99	New entry-	£72,500	-	24 0.94%	1
React	100	Down 18 places-18	£52,500	+2.43%	23 0.90%	10
Terraform	100	Down 16 places-16	£63,750	-10.83%	23 0.90%	12
ML.NET	103	New entry-	£60,000	-	20 0.78%
Entity Framework	107	Down 19 places-19	£60,000	-	16 0.63%	5
Node.js	107	Down 21 places-21	£60,000	-25.00%	16 0.63%	8
.NET Framework	111	Down 25 places-25	£50,000	-2.43%	12 0.47%	5
LINQ	112	New entry-	£60,000	-	11 0.43%	1
ASP.NET Web API	112	New entry-	£53,750	-	11 0.43%	2
REST	114	Down 27 places-27	£56,250	-16.66%	9 0.35%	24
LDAP	116	Down 33 places-33	£50,000	-25.09%	7 0.27%	7
WPF	116	Down 27 places-27	£50,000	-13.04%	7 0.27%	2
Playwright	116	Down 29 places-29	£55,000	-26.66%	7 0.27%	3
Microsoft Graph	117	New entry-	£60,000	-	6 0.23%	2
Middleware	118	Down 32 places-32	£47,500	-28.30%	5 0.20%	17
Vue	119	Down 35 places-35	£57,500	+35.29%	4 0.16%
WinForms	119	New entry-	£48,750	-	4 0.16%
AngularJS	119	Down 35 places-35	£57,500	-4.16%	4 0.16%	3
STL	120	New entry-	-	-	3 0.12%
Web Services	120	Down 32 places-32	-	-	3 0.12%	4
EDI	120	Down 32 places-32	-	-	3 0.12%	6
JSON	120	Down 52 places-52	-	-	3 0.12%	13
Laravel	120	New entry-	£42,500	-	3 0.12%	2
JWT	120	New entry-	-	-	3 0.12%
OAuth	120	New entry-	-	-	3 0.12%	1
Model Context Protocol	121	New entry-	£60,000	-	2 0.078%	4
Regular Expression	121	New entry-	-	-	2 0.078%	6
ModSecurity	121	New entry-	-	-	2 0.078%
Django	121	New entry-	£75,000	-	2 0.078%	1
Tailwind CSS	121	New entry-	£42,500	-	2 0.078%	2
Flask	121	New entry-	£75,000	-	2 0.078%
pytest	122	New entry-	-	-	1 0.039%	4
Visualforce	122	New entry-	£42,500	-	1 0.039%
WinUI	122	New entry-	£65,000	-	1 0.039%
SAP Fiori	122	Down 33 places-33	-	-	1 0.039%
TensorFlow	122	Down 35 places-35	-	-	1 0.039%
Ajax	122	New entry-	£50,000	-	1 0.039%
XMPP	122	Down 33 places-33	-	-	1 0.039%	5