Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 28 Nov 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	48	-8	£55,000	-2.22%	42 3.26%	16
HTML	53	-20	£55,000	+10.00%	37 2.87%	17
XML	67	+28	£55,000	-	23 1.79%	4
JSON	67	+30	£55,000	-13.72%	23 1.79%	4
.NET	74	-36	£52,500	-25.00%	16 1.24%	21
React	82	-30	£51,250	-6.81%	8 0.62%	5
Vue	84	-8	£42,500	-22.72%	6 0.47%	2
AngularJS	86	-20	£80,000	+45.45%	4 0.31%	10
SignalR	86	-	£42,500	-	4 0.31%
Node.js	86	-17	£80,000	+77.77%	4 0.31%	10
Middleware	86	-	£66,250	-	4 0.31%	9
SAP Basis	86	-	£75,000	-	4 0.31%
jQuery	86	-8	£42,500	-43.33%	4 0.31%	1
LDAP	86	-1	£66,750	+4.70%	4 0.31%	3
SOAP	87	+7	£67,500	+8.00%	3 0.23%	4
ASP.NET	87	-2	£60,000	-11.11%	3 0.23%	12
OpenGL	87	-	£40,000	-	3 0.23%	3
SAP PI	87	+12	-	-	3 0.23%
REST	87	-10	£67,500	-10.00%	3 0.23%	8
TensorFlow	87	-	£47,500	-	3 0.23%	2
Playwright	87	-	£75,000	-	3 0.23%
Hugging Face	87	-	£100,000	-	3 0.23%
.NET Core	87	+3	£60,000	-	3 0.23%	14
Vulkan	87	-	£40,000	-	3 0.23%	3
PyTorch	87	-	£47,500	-	3 0.23%	2
Nuxt	88	-	£100,000	-	2 0.16%
Kafka	88	+9	£100,000	+29.03%	2 0.16%	1
Oracle Fusion	88	+12	£70,000	+5.66%	2 0.16%	8
RabbitMQ	88	+13	£100,000	+21.21%	2 0.16%
Entity Framework	88	-15	£60,000	-25.00%	2 0.16%	8
.NET Framework	88	-11	£60,000	-27.27%	2 0.16%	6
EDI	88	+10	-	-	2 0.16%	1
Web Services	88	+8	£50,000	-4.76%	2 0.16%	8
XMPP	89	-	£55,000	-	1 0.078%
MDX	89	-	£60,000	-	1 0.078%
WPF	89	+7	£57,500	-	1 0.078%	2
NumPy	89	-	-	-	1 0.078%
Matplotlib	89	-	-	-	1 0.078%
Pandas	89	-	-	-	1 0.078%
scikit-learn	89	-	-	-	1 0.078%
SAP Fiori	89	+11	£75,000	+15.38%	1 0.078%	3
Seaborn	89	-	-	-	1 0.078%
PySpark	89	-	£65,000	-	1 0.078%	1
Keras	89	-	-	-	1 0.078%
LangChain	89	-	£47,500	-	1 0.078%