Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 6 Dec 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	49	-7	£55,000	-4.34%	41 2.99%	16
HTML	55	-22	£55,000	+7.31%	35 2.55%	12
XML	65	+34	£55,000	-	25 1.82%	4
JSON	65	+36	£55,000	-13.72%	25 1.82%	8
.NET	73	-35	£52,500	-25.00%	17 1.24%	19
React	82	-28	£51,250	-10.86%	8 0.58%	6
Vue	84	-3	£42,500	-26.08%	6 0.44%	1
.NET Core	84	+10	£92,500	+60.86%	6 0.44%	13
AngularJS	86	-16	£80,000	+45.45%	4 0.29%	4
SignalR	86	-	£42,500	-	4 0.29%
Node.js	86	-15	£80,000	+77.77%	4 0.29%	9
Middleware	86	+19	£66,250	+1.92%	4 0.29%	9
SAP Basis	86	-	£75,000	-	4 0.29%
jQuery	86	-4	£42,500	-43.33%	4 0.29%	1
SOAP	87	+10	£67,500	+8.00%	3 0.22%	2
LDAP	87	+2	£65,000	+1.96%	3 0.22%	8
ASP.NET	87	+2	£60,000	-11.11%	3 0.22%	11
OpenGL	87	-	£40,000	-	3 0.22%	3
Oracle Fusion	87	+17	£70,000	+5.66%	3 0.22%	4
REST	87	-6	£67,500	-10.00%	3 0.22%	14
TensorFlow	87	-	£47,500	-	3 0.22%	2
Playwright	87	-	£75,000	-	3 0.22%
Hugging Face	87	-	£100,000	-	3 0.22%
Vulkan	87	-	£40,000	-	3 0.22%	3
PyTorch	87	-	£47,500	-	3 0.22%	2
Nuxt	88	-	£100,000	-	2 0.15%
Kafka	88	+12	£100,000	+29.03%	2 0.15%	1
SAP PI	88	+16	-	-	2 0.15%
RabbitMQ	88	+16	£100,000	+35.59%	2 0.15%
Entity Framework	88	-12	£60,000	-7.69%	2 0.15%	2
.NET Framework	88	-8	£60,000	-18.64%	2 0.15%	1
EDI	88	+14	-	-	2 0.15%	1
Web Services	88	+12	£50,000	-4.76%	2 0.15%	4
MDX	89	-	£60,000	-	1 0.073%
WPF	89	+11	£57,500	-	1 0.073%	1
NumPy	89	-	-	-	1 0.073%
Matplotlib	89	-	-	-	1 0.073%
Pandas	89	-	-	-	1 0.073%
scikit-learn	89	-	-	-	1 0.073%
SAP Fiori	89	+15	£75,000	+15.38%	1 0.073%	4
Seaborn	89	-	-	-	1 0.073%
PySpark	89	-	£65,000	-	1 0.073%	1
Keras	89	-	-	-	1 0.073%
LangChain	89	-	£47,500	-	1 0.073%