Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 30 Nov 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	47	-12	£55,000	-2.22%	38 2.89%	13
HTML	52	-24	£55,000	+10.00%	33 2.51%	14
XML	62	+30	£55,000	-	23 1.75%	3
JSON	62	+32	£55,000	-13.72%	23 1.75%	4
.NET	69	-35	£52,500	-25.00%	16 1.21%	22
React	77	-30	£51,250	-6.81%	8 0.61%	4
Vue	79	-6	£42,500	-22.72%	6 0.46%	2
.NET Core	81	+7	£80,000	+33.33%	4 0.30%	13
AngularJS	81	-18	£80,000	+45.45%	4 0.30%	9
SignalR	81	-	£42,500	-	4 0.30%
Node.js	81	-17	£80,000	+77.77%	4 0.30%	10
Middleware	81	+17	£66,250	+1.92%	4 0.30%	9
SAP Basis	81	-	£75,000	-	4 0.30%
jQuery	81	-6	£42,500	-43.33%	4 0.30%	1
LDAP	81	+1	£66,750	+4.70%	4 0.30%	3
SOAP	82	+8	£67,500	+8.00%	3 0.23%	3
ASP.NET	82	0	£60,000	-11.11%	3 0.23%	12
OpenGL	82	-	£40,000	-	3 0.23%	3
SAP PI	82	+14	-	-	3 0.23%
REST	82	-8	£67,500	-10.00%	3 0.23%	8
TensorFlow	82	-	£47,500	-	3 0.23%	2
Playwright	82	-	£75,000	-	3 0.23%
Hugging Face	82	-	£100,000	-	3 0.23%
Vulkan	82	-	£40,000	-	3 0.23%	3
PyTorch	82	-	£47,500	-	3 0.23%	2
Nuxt	83	-	£100,000	-	2 0.15%
Kafka	83	+10	£100,000	+29.03%	2 0.15%
Oracle Fusion	83	+14	£70,000	+5.66%	2 0.15%	9
RabbitMQ	83	+14	£100,000	+35.59%	2 0.15%
Entity Framework	83	-13	£60,000	-25.00%	2 0.15%	8
.NET Framework	83	-9	£60,000	-27.27%	2 0.15%	6
EDI	83	+12	-	-	2 0.15%	1
Web Services	83	+10	£50,000	-4.76%	2 0.15%	7
XMPP	84	-	£55,000	-	1 0.076%
MDX	84	-	£60,000	-	1 0.076%
WPF	84	+9	£57,500	-	1 0.076%	2
NumPy	84	-	-	-	1 0.076%
Matplotlib	84	-	-	-	1 0.076%
Pandas	84	-	-	-	1 0.076%
scikit-learn	84	-	-	-	1 0.076%
SAP Fiori	84	+13	£75,000	+15.38%	1 0.076%	3
Seaborn	84	-	-	-	1 0.076%
PySpark	84	-	£65,000	-	1 0.076%	1
Keras	84	-	-	-	1 0.076%
LangChain	84	-	£47,500	-	1 0.076%