Period
to 4 March 2021

The following table provides summary statistics for contract job vacancies advertised in Hounslow with a requirement for Data Quality skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Quality over the 6 months to 4 March 2021 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Data Quality
West London > Hounslow
6 months to
4 Mar 2021
Same period 2020 Same period 2019
Rank 10 30 36
Rank change year-on-year +20 +6 +13
Contract jobs citing Data Quality 13 4 8
As % of all contract jobs advertised in Hounslow 11.50% 1.53% 2.20%
As % of the Quality Assurance & Compliance category 32.50% 8.70% 13.11%
Number of daily rates quoted 18 2 5
Median daily rate £622 £575 £205
Median daily rate % change year-on-year +8.13% +180.49% -70.71%
10th Percentile £553 £563 £200
90th Percentile £687 £588 £393
West London median daily rate £622 £413 £263
% change year-on-year +50.73% +57.14% -34.38%
Number of hourly rates quoted 0 2 0
Median hourly rate - £33.48 -
West London median hourly rate - £33.48 £37.50
% change year-on-year - -10.73% -

Data Quality is in the Quality Assurance and Compliance category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hounslow with a requirement for quality assurance or compliance skills.

All Quality Assurance and Compliance Skills
Hounslow
Contract vacancies with a requirement for quality assurance or compliance skills 40 46 61
As % of all contract IT jobs advertised in Hounslow 35.40% 17.62% 16.80%
Number of daily rates quoted 36 34 36
Median daily rate £575 £530 £500
Median daily rate % change year-on-year +8.49% +6.00% -4.76%
10th Percentile £419 £211 £213
90th Percentile £658 £688 £600
West London median daily rate £510 £500 £414
% change year-on-year +2.00% +20.85% -4.89%
Number of hourly rates quoted 1 4 5
Median hourly rate £52.50 £21.85 £11.50
Median hourly rate % change year-on-year +140.27% +90.00% -4.17%
10th Percentile £51.25 £11.13 £10.75
90th Percentile £53.75 £35.42 £24.87
Median hourly rate £52.50 £19.75 £37.50
% change year-on-year +165.82% -47.33% -

Data Quality
Job Vacancy Trend in Hounslow

Job postings citing Data Quality as a proportion of all IT jobs advertised in Hounslow.

Job vacancy trend for Data Quality in Hounslow

Data Quality
Contractor Daily Rate Trend in Hounslow

3-month moving average daily rate quoted in jobs citing Data Quality in Hounslow.

Daily rate trend for Data Quality in Hounslow

Data Quality
Daily Rate Histogram in Hounslow

Daily rate distribution for jobs citing Data Quality in Hounslow over the 6 months to 4 March 2021.

Daily rate histogram for Data Quality in Hounslow

Data Quality
Contractor Hourly Rate Trend in Hounslow

3-month moving average hourly rates quoted in jobs citing Data Quality in Hounslow.

Hourly rate trend for Data Quality in Hounslow

Data Quality
Contract Job Locations in Hounslow

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Data Quality within the Hounslow region over the 6 months to 4 March 2021. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Brentford +17 12 £624 +8.43%
Osterley - 1 £500 -
Data Quality
West London

For the 6 months to 4 March 2021, IT contractor jobs citing Data Quality also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Hounslow region with a requirement for Data Quality.

1 9 (69.23%) Agile Software Development
2 8 (61.54%) Artificial Intelligence
2 8 (61.54%) SQL
2 8 (61.54%) Machine Learning
2 8 (61.54%) Apache Spark
2 8 (61.54%) Data Science
3 7 (53.85%) Algorithms
3 7 (53.85%) Bayesian Methods
3 7 (53.85%) Mathematics
3 7 (53.85%) Applied Mathematics
4 6 (46.15%) Azure
4 6 (46.15%) Statistical Modelling
5 5 (38.46%) Python
5 5 (38.46%) Data Management
5 5 (38.46%) Marketing
5 5 (38.46%) Apache Airflow
5 5 (38.46%) TensorFlow
5 5 (38.46%) PyTorch
5 5 (38.46%) MLflow
6 4 (30.77%) Deep Learning
7 3 (23.08%) Time Series Forecasting
7 3 (23.08%) Pandas
7 3 (23.08%) Analytical Skills
7 3 (23.08%) scikit-learn
7 3 (23.08%) Keras
7 3 (23.08%) Data Modelling
7 3 (23.08%) NumPy
7 3 (23.08%) Hadoop
8 2 (15.38%) Data Architecture
8 2 (15.38%) Predictive Modelling

Data Quality
Co-occurring IT Skills in Hounslow by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 8 (61.54%) Apache Spark
2 5 (38.46%) Apache Airflow
3 1 (7.69%) Apache Pig
3 1 (7.69%) Apache Solr
3 1 (7.69%) SharePoint
Business Applications
1 1 (7.69%) Workfront
Cloud Services
1 6 (46.15%) Azure
2 2 (15.38%) Azure Machine Learning
3 1 (7.69%) AWS
3 1 (7.69%) AWS Lambda
3 1 (7.69%) GCP
3 1 (7.69%) Power Platform
3 1 (7.69%) SaaS
3 1 (7.69%) Serverless
Database & Business Intelligence
1 3 (23.08%) Hadoop
2 2 (15.38%) Data Lake
2 2 (15.38%) NoSQL
3 1 (7.69%) Apache Hive
3 1 (7.69%) Big Data
3 1 (7.69%) BigQuery
3 1 (7.69%) Data Mart
3 1 (7.69%) Data Warehouse
3 1 (7.69%) Electronic Patient Records
3 1 (7.69%) HBase
3 1 (7.69%) Power BI
3 1 (7.69%) QlikView
3 1 (7.69%) Tableau
Development Applications
1 5 (38.46%) MLflow
2 1 (7.69%) kappa
General
1 5 (38.46%) Marketing
2 1 (7.69%) Legal
2 1 (7.69%) Manufacturing
2 1 (7.69%) Pharmaceutical
Job Titles
1 7 (53.85%) Data Scientist
1 7 (53.85%) Senior Data Scientist
2 2 (15.38%) Analyst
2 2 (15.38%) Architect
2 2 (15.38%) Data Architect
3 1 (7.69%) Data Analyst
3 1 (7.69%) Systems Analyst
Libraries, Frameworks & Software Standards
1 5 (38.46%) PyTorch
1 5 (38.46%) TensorFlow
2 3 (23.08%) Keras
2 3 (23.08%) NumPy
2 3 (23.08%) Pandas
2 3 (23.08%) scikit-learn
3 1 (7.69%) Kafka
3 1 (7.69%) Lucene
3 1 (7.69%) Web Services
Miscellaneous
1 7 (53.85%) Algorithms
2 3 (23.08%) Analytical Skills
3 2 (15.38%) CUDA
4 1 (7.69%) Reference Data
4 1 (7.69%) Virtual Team
Processes & Methodologies
1 9 (69.23%) Agile Software Development
2 8 (61.54%) Artificial Intelligence
2 8 (61.54%) Data Science
2 8 (61.54%) Machine Learning
3 7 (53.85%) Applied Mathematics
3 7 (53.85%) Bayesian Methods
3 7 (53.85%) Mathematics
4 6 (46.15%) Statistical Modelling
5 5 (38.46%) Data Management
6 4 (30.77%) Deep Learning
7 3 (23.08%) Data Modelling
7 3 (23.08%) Time Series Forecasting
8 2 (15.38%) Business Intelligence
8 2 (15.38%) Data Architecture
8 2 (15.38%) Master Data Management
8 2 (15.38%) Matrix Organization
8 2 (15.38%) Predictive Modelling
8 2 (15.38%) Problem-Solving
8 2 (15.38%) Project Management
8 2 (15.38%) Thought Leadership
Programming Languages
1 8 (61.54%) SQL
2 5 (38.46%) Python
3 2 (15.38%) R
Qualifications
1 1 (7.69%) Computer Science Degree
1 1 (7.69%) Degree
1 1 (7.69%) PMI Certification
1 1 (7.69%) PMP
Quality Assurance & Compliance
1 1 (7.69%) GDPR
1 1 (7.69%) PCI DSS
System Software
1 1 (7.69%) Apache Flume
1 1 (7.69%) HDFS
Vendors
1 2 (15.38%) Databricks
2 1 (7.69%) Google
2 1 (7.69%) Microsoft
2 1 (7.69%) Salesforce.com
2 1 (7.69%) Workday