Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 17 Nov 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	51	-6	£55,000	-12.00%	39 3.29%	13
HTML	53	-19	£55,000	+2.32%	37 3.12%	14
XML	68	+32	£55,000	-12.00%	22 1.86%	6
JSON	68	+32	£55,000	-15.38%	22 1.86%	5
.NET	70	-27	£42,500	-39.28%	20 1.69%	24
React	82	-24	£51,250	-6.81%	8 0.68%	11
Vue	84	-1	£42,500	-32.00%	6 0.51%	4
LDAP	84	+3	£66,750	+4.70%	6 0.51%	3
AngularJS	85	-13	£60,000	+20.00%	5 0.42%	13
Kafka	86	+16	£85,750	-15.30%	4 0.34%	4
SignalR	86	-	£42,500	-	4 0.34%
jQuery	86	-5	£42,500	-43.33%	4 0.34%	1
Middleware	86	-	£66,250	-	4 0.34%	9
SAP Basis	86	-	£75,000	-	4 0.34%
Node.js	86	-13	£80,000	+77.77%	4 0.34%	16
ASP.NET	86	+1	£51,250	-24.07%	4 0.34%	13
SOAP	87	+14	£67,500	-	3 0.25%	10
.NET Framework	87	-8	£60,000	-27.27%	3 0.25%	7
TensorFlow	87	-	£47,500	-	3 0.25%	1
SAP PI	87	+13	-	-	3 0.25%
REST	87	-5	£67,500	-28.94%	3 0.25%	15
Playwright	87	-	£75,000	-	3 0.25%	1
Hugging Face	87	-	£100,000	-	3 0.25%
PyTorch	87	-	£47,500	-	3 0.25%	1
Apache NiFi	88	-	£71,500	-	2 0.17%
Nuxt	88	-	£100,000	-	2 0.17%
.NET Core	88	+7	£60,000	-	2 0.17%	16
RabbitMQ	88	+15	£100,000	+21.21%	2 0.17%
Entity Framework	88	-13	£60,000	-25.00%	2 0.17%	9
EDI	88	+10	-	-	2 0.17%	5
Web Services	88	+13	£50,000	-	2 0.17%	12
XMPP	89	-	£55,000	-	1 0.084%
Oracle Fusion	89	+13	£70,000	+5.66%	1 0.084%	9
HTML5	89	-21	£42,500	-43.33%	1 0.084%	6
NumPy	89	-	-	-	1 0.084%
Matplotlib	89	-	-	-	1 0.084%
MDX	89	-	£60,000	-	1 0.084%
WPF	89	+9	£57,500	-	1 0.084%	2
scikit-learn	89	-	-	-	1 0.084%
SAP Fiori	89	+13	£75,000	+15.38%	1 0.084%	3
Pandas	89	-	-	-	1 0.084%
Keras	89	-	-	-	1 0.084%
Seaborn	89	-	-	-	1 0.084%
LangChain	89	-	£47,500	-	1 0.084%