Contract Software Library & Framework Statistics in West London

Description	Rank 6 Months to 10 Apr 2026	Rank YoY Change	Median Daily Rate	Median Daily Rate YoY Change	Historical Absolute & Relative Jobs Vacancies	Live Jobs
Playwright	27	-	£375	-	25 7.51%	1
Node.js	29	-8	£550	+35.13%	23 6.91%	1
Kafka	30	-5	£603	+6.63%	22 6.61%	6
Vitest	31	-	-	-	21 6.31%
GraphQL	31	-13	-	-	21 6.31%
Great Expectations	35	-	£603	-	17 5.11%
YAML	39	-13	-	-	13 3.90%
OpenTelemetry	41	-	-	-	11 3.30%
SAP TM	41	-	£708	-	11 3.30%
Pandas	43	-	£511	-	9 2.70%	7
PySpark	44	-16	£625	-19.35%	8 2.40%	1
scikit-learn	46	-	£500	-	6 1.80%	7
NumPy	46	-	£500	-	6 1.80%	7
REST	46	-24	£375	-32.31%	6 1.80%	2
Middleware	46	-18	£625	+52.81%	6 1.80%
Seaborn	47	-	£475	-	5 1.50%	1
RESTful	48	-26	£550	+34.47%	4 1.20%	4
Next.js	49	-25	£523	-16.40%	3 0.90%	1
.NET	49	-24	£400	-27.53%	3 0.90%	9
SOAP	49	-21	-	-	3 0.90%	1
Web Services	49	-26	-	-	3 0.90%	1
XML	49	-23	-	-	3 0.90%	1
JSON	49	-22	-	-	3 0.90%	1
Tailwind CSS	50	-	-	-	2 0.60%	2
PyTorch	50	-	£850	-	2 0.60%	5
FastAPI	50	-	-	-	2 0.60%	1
pytest	50	-	-	-	2 0.60%
Spring Boot	50	-	£475	-	2 0.60%	2
SAP Fiori	50	-22	-	-	2 0.60%
TensorFlow	50	-	£850	-	2 0.60%	5
CSS	50	-24	-	-	2 0.60%	7
iOS SDK	50	-	-	-	2 0.60%
Gherkin	50	-	-	-	2 0.60%
Spring WebFlux	51	-	£300	-	1 0.30%
Oracle Fusion	51	-24	£900	+63.63%	1 0.30%	1
React	51	-34	£523	+27.75%	1 0.30%	6
Spring	51	-	£300	-	1 0.30%	1
Lambda Expressions	51	-26	£650	-	1 0.30%
HTML	51	-	£413	-	1 0.30%	7
J2EE	51	-	£650	-	1 0.30%
.NET Framework	51	-26	£400	-27.53%	1 0.30%	1