Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 16 Nov 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	48	-9	£55,000	-12.00%	39 3.29%	14
HTML	50	-22	£55,000	+2.32%	37 3.12%	16
XML	64	+30	£55,000	-12.00%	22 1.86%	6
JSON	64	+30	£55,000	-15.38%	22 1.86%	5
.NET	66	-29	£42,500	-39.28%	20 1.69%	26
React	78	-26	£51,250	-6.81%	8 0.67%	11
LDAP	79	+2	£66,750	+4.70%	7 0.59%	4
Vue	80	-3	£42,500	-32.00%	6 0.51%	4
AngularJS	81	-15	£60,000	+20.00%	5 0.42%	14
Kafka	82	+14	£85,750	-15.30%	4 0.34%	3
SignalR	82	-	£42,500	-	4 0.34%
jQuery	82	-7	£42,500	-43.33%	4 0.34%	1
Middleware	82	-	£66,250	-	4 0.34%	10
SAP Basis	82	-	£75,000	-	4 0.34%
Node.js	82	-15	£80,000	+77.77%	4 0.34%	16
ASP.NET	82	-1	£51,250	-24.07%	4 0.34%	15
SOAP	83	+12	£67,500	-	3 0.25%	10
.NET Framework	83	-10	£60,000	-27.27%	3 0.25%	7
TensorFlow	83	-	£47,500	-	3 0.25%	1
SAP PI	83	+10	-	-	3 0.25%
REST	83	-7	£67,500	-28.94%	3 0.25%	14
Playwright	83	-	£75,000	-	3 0.25%	1
Hugging Face	83	-	£100,000	-	3 0.25%
PyTorch	83	-	£47,500	-	3 0.25%	1
Apache NiFi	84	-	£71,500	-	2 0.17%
Nuxt	84	-	£100,000	-	2 0.17%
.NET Core	84	+5	£60,000	-	2 0.17%	18
RabbitMQ	84	+13	£100,000	+21.21%	2 0.17%
Entity Framework	84	-15	£60,000	-25.00%	2 0.17%	10
EDI	84	+8	-	-	2 0.17%	5
Web Services	84	+11	£50,000	-	2 0.17%	12
XMPP	85	-	£55,000	-	1 0.084%
Oracle Fusion	85	+9	£70,000	+3.70%	1 0.084%	10
HTML5	85	-23	£42,500	-43.33%	1 0.084%	8
NumPy	85	-	-	-	1 0.084%
Matplotlib	85	-	-	-	1 0.084%
MDX	85	-	£60,000	-	1 0.084%
WPF	85	+7	£57,500	-	1 0.084%	2
scikit-learn	85	-	-	-	1 0.084%
SAP Fiori	85	+11	£75,000	+15.38%	1 0.084%	3
Pandas	85	-	-	-	1 0.084%
Keras	85	-	-	-	1 0.084%
Seaborn	85	-	-	-	1 0.084%
LangChain	85	-	£47,500	-	1 0.084%