Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 24 Nov 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	50	-10	£55,000	-2.22%	41 3.30%	17
HTML	54	-24	£55,000	+10.00%	37 2.98%	17
XML	67	+26	£55,000	-	23 1.85%	6
JSON	67	+28	£55,000	-13.72%	23 1.85%	5
.NET	74	-39	£52,500	-25.00%	16 1.29%	20
React	82	-30	£51,250	-6.81%	8 0.64%	4
Vue	84	-10	£42,500	-22.72%	6 0.48%	2
LDAP	85	-2	£66,750	+4.70%	5 0.40%	2
AngularJS	86	-21	£80,000	+45.45%	4 0.32%	11
SignalR	86	-	£42,500	-	4 0.32%
Node.js	86	-18	£80,000	+77.77%	4 0.32%	10
Middleware	86	-	£66,250	-	4 0.32%	9
SAP Basis	86	-	£75,000	-	4 0.32%
jQuery	86	-10	£42,500	-43.33%	4 0.32%	2
SOAP	87	+5	£67,500	+8.00%	3 0.24%	5
ASP.NET	87	-4	£60,000	-11.11%	3 0.24%	12
REST	87	-12	£67,500	-10.00%	3 0.24%	10
.NET Core	87	+1	£60,000	-	3 0.24%	13
TensorFlow	87	-	£47,500	-	3 0.24%	1
PyTorch	87	-	£47,500	-	3 0.24%	1
Playwright	87	-	£75,000	-	3 0.24%
Hugging Face	87	-	£100,000	-	3 0.24%
SAP PI	87	+10	-	-	3 0.24%
Nuxt	88	-	£100,000	-	2 0.16%
Vulkan	88	-	£40,000	-	2 0.16%	2
Kafka	88	+7	£100,000	+29.03%	2 0.16%	1
RabbitMQ	88	+11	£100,000	+21.21%	2 0.16%
Entity Framework	88	-17	£60,000	-25.00%	2 0.16%	8
.NET Framework	88	-13	£60,000	-27.27%	2 0.16%	6
EDI	88	+8	-	-	2 0.16%	3
OpenGL	88	-	£40,000	-	2 0.16%	2
Web Services	88	+6	£50,000	-4.76%	2 0.16%	8
XMPP	89	-	£55,000	-	1 0.081%
MDX	89	-	£60,000	-	1 0.081%
WPF	89	+5	£57,500	-	1 0.081%	2
Oracle Fusion	89	+9	£70,000	+5.66%	1 0.081%	8
NumPy	89	-	-	-	1 0.081%
Matplotlib	89	-	-	-	1 0.081%
scikit-learn	89	-	-	-	1 0.081%
SAP Fiori	89	+9	£75,000	+15.38%	1 0.081%	3
Pandas	89	-	-	-	1 0.081%
Keras	89	-	-	-	1 0.081%
Seaborn	89	-	-	-	1 0.081%
PySpark	89	-	£65,000	-	1 0.081%	1
LangChain	89	-	£47,500	-	1 0.081%