Software Library & Framework Statistics in Hertfordshire

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There is a choice between 3 and 6 months to 26 October 2026 with year-over-year comparisons.

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Results 1 - 50 of 57

Permanent Job Market Index
Description	Rank 6 Months to 26 Oct 2026	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
.NET	35	Up 29 places+29	£60,000	+41.17%	95 3.75%	7
.NET Core	56	Up 25 places+25	£60,000	-	64 2.53%
ASP.NET	65	Up 13 places+13	£60,000	+41.17%	54 2.13%
ASP.NET Core	65	New entry-	£60,000	-	54 2.13%
RESTful	72	New entry-	£72,500	-	47 1.85%	2
CSS	84	Down 37 places-37	£60,000	+9.09%	35 1.38%	3
React	86	Down 8 places-8	£52,500	-12.50%	33 1.30%
Blazor	88	New entry-	£53,750	-	31 1.22%	1
HTML	88	Down 43 places-43	£60,000	+9.09%	31 1.22%	4
ML.NET	89	New entry-	£60,000	-	30 1.18%
Terraform	95	Down 18 places-18	£62,500	-12.58%	24 0.95%	4
FastAPI	95	New entry-	£72,500	-	24 0.95%	1
Kafka	97	Down 18 places-18	£72,500	-15.45%	22 0.87%	1
OpenAPI	97	New entry-	£72,500	-	22 0.87%	1
Swagger	97	New entry-	£72,500	-	22 0.87%	1
RabbitMQ	97	Down 16 places-16	£72,500	-27.50%	22 0.87%	1
Entity Framework	98	Down 17 places-17	£60,000	-	21 0.83%	2
Node.js	100	Down 21 places-21	£60,000	-25.00%	19 0.75%	1
LINQ	104	New entry-	£60,000	-	15 0.59%	1
ASP.NET Web API	105	New entry-	£57,500	-	14 0.55%
.NET Framework	106	Down 27 places-27	£50,000	-2.43%	13 0.51%	3
LDAP	110	Down 36 places-36	£50,000	-27.00%	9 0.36%	1
REST	110	Down 30 places-30	£56,250	-	9 0.36%	4
WPF	111	New entry-	£55,000	-	8 0.32%
Microsoft Graph	113	New entry-	£60,000	-	6 0.24%	1
AngularJS	113	Down 36 places-36	£57,500	-4.16%	6 0.24%	1
Playwright	113	Down 34 places-34	£55,000	-15.38%	6 0.24%	2
Vue	113	Down 33 places-33	£57,500	-42.50%	6 0.24%
WinForms	115	New entry-	£48,750	-	4 0.16%
Middleware	115	Down 35 places-35	£60,000	-20.00%	4 0.16%	2
Django	116	New entry-	£73,750	-	3 0.12%
OAuth	116	New entry-	-	-	3 0.12%
JWT	116	New entry-	-	-	3 0.12%
Flask	116	New entry-	£73,750	-	3 0.12%
WinUI	116	New entry-	£65,000	-	3 0.12%
Web Services	116	Down 35 places-35	-	-	3 0.12%	2
EDI	116	Down 35 places-35	-	-	3 0.12%	1
JSON	116	Down 53 places-53	-	-	3 0.12%	1
Laravel	116	New entry-	£42,500	-	3 0.12%
Regular Expression	117	New entry-	-	-	2 0.079%
ModSecurity	117	New entry-	-	-	2 0.079%
Tailwind CSS	117	New entry-	£42,500	-	2 0.079%
D3.js	118	New entry-	£45,000	-	1 0.040%
Elastic Stack	118	New entry-	-	-	1 0.040%
WebRTC	118	New entry-	£80,000	-	1 0.040%
PyTorch	118	Down 37 places-37	-	-	1 0.040%
YAML	118	New entry-	-	-	1 0.040%
Oracle Fusion	118	Down 36 places-36	£95,000	+35.71%	1 0.040%	3
Lightning Web Components	118	New entry-	£42,500	-	1 0.040%	1
pytest	118	New entry-	-	-	1 0.040%