Software Library & Framework Skills in Hertfordshire

Description	Rank 6 Months to 14 Dec 2025	Rank YoY Change	Median Salary	Median Salary YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
CSS	47	-9	£55,000	-4.34%	43 2.83%	33
HTML	55	-24	£55,000	+7.31%	34 2.24%	25
XML	64	+27	£55,000	-	25 1.65%	12
JSON	64	+28	£55,000	-13.72%	25 1.65%	16
.NET	72	-38	£52,500	-25.00%	16 1.05%	41
React	80	-29	£51,250	-10.86%	8 0.53%	38
Vue	82	-10	£42,500	-26.08%	6 0.40%	3
.NET Core	82	+3	£92,500	+60.86%	6 0.40%	15
Oracle Fusion	83	+12	£53,750	-18.86%	5 0.33%	10
AngularJS	84	-22	£80,000	+45.45%	4 0.26%	9
SignalR	84	-	£42,500	-	4 0.26%
Node.js	84	-19	£80,000	+77.77%	4 0.26%	39
SAP Basis	84	-	£75,000	-	4 0.26%
jQuery	84	-11	£42,500	-43.33%	4 0.26%	1
SOAP	85	+3	£67,500	+8.00%	3 0.20%	10
LDAP	85	-5	£65,000	+1.96%	3 0.20%	14
ASP.NET	85	-6	£60,000	-	3 0.20%	16
OpenGL	85	-	£40,000	-	3 0.20%	3
Middleware	85	+11	£66,250	+1.92%	3 0.20%	18
REST	85	-14	£67,500	-1.81%	3 0.20%	35
TensorFlow	85	-	£47,500	-	3 0.20%	20
Hugging Face	85	-	£100,000	-	3 0.20%
Vulkan	85	-	£40,000	-	3 0.20%	3
PyTorch	85	-	£47,500	-	3 0.20%	18
Nuxt	86	-	£100,000	-	2 0.13%
Playwright	86	-	£75,000	-	2 0.13%	6
Kafka	86	+5	£100,000	+29.03%	2 0.13%	14
RabbitMQ	86	+9	£100,000	+35.59%	2 0.13%	6
Entity Framework	86	-19	£60,000	-7.69%	2 0.13%	9
.NET Framework	86	-15	£60,000	-7.69%	2 0.13%	8
EDI	86	+7	-	-	2 0.13%	3
Web Services	86	+4	£50,000	-9.09%	2 0.13%	11
MDX	87	-	£60,000	-	1 0.066%
WPF	87	+4	£57,500	-	1 0.066%	3
NumPy	87	-	-	-	1 0.066%	8
SAP PI	87	-	-	-	1 0.066%
Matplotlib	87	-	-	-	1 0.066%	2
Pandas	87	-	-	-	1 0.066%	7
scikit-learn	87	-	-	-	1 0.066%	10
SAP Fiori	87	+9	£75,000	-	1 0.066%	3
Seaborn	87	-	-	-	1 0.066%	2
PySpark	87	-	£65,000	-	1 0.066%	8
Keras	87	-	-	-	1 0.066%	3
LangChain	87	-	£47,500	-	1 0.066%	6