Period
to 15 July 2020

The following table provides summary statistics for contract job vacancies advertised in Central London 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 15 July 2020 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
London > Central London
6 months to
15 Jul 2020
Same period 2019 Same period 2018
Rank 131 173 204
Rank change year-on-year +42 +31 -25
Contract jobs citing Data Quality 27 122 103
As % of all contract jobs advertised in Central London 0.86% 1.41% 1.10%
As % of the Quality Assurance & Compliance category 8.16% 15.02% 9.86%
Number of daily rates quoted 17 89 77
Median daily rate £525 £550 £550
Median daily rate % change year-on-year -4.55% - +10.00%
10th Percentile £348 £413 £413
90th Percentile £860 £628 £655
London median daily rate £525 £500 £513
% change year-on-year +5.00% -2.44% +7.89%
Number of hourly rates quoted 0 2 1
Median hourly rate - £12.75 £15.55
Median hourly rate % change year-on-year - -18.01% -
London median hourly rate £23.13 £20.44 £35.00
% change year-on-year +13.19% -41.61% +79.49%

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 Central London with a requirement for quality assurance or compliance skills.

All Quality Assurance and Compliance Skills
Central London
Contract vacancies with a requirement for quality assurance or compliance skills 331 812 1,045
As % of all contract IT jobs advertised in Central London 10.50% 9.39% 11.19%
Number of daily rates quoted 199 605 767
Median daily rate £475 £500 £480
Median daily rate % change year-on-year -5.00% +4.17% -4.00%
10th Percentile £300 £325 £313
90th Percentile £638 £656 £675
London median daily rate £500 £500 £486
% change year-on-year - +2.83% -0.26%
Number of hourly rates quoted 6 11 10
Median hourly rate £38.48 £19.50 £20.10
Median hourly rate % change year-on-year +97.31% -2.99% +36.27%
10th Percentile £22.73 £11.75 £13.76
90th Percentile £50.00 £43.01 £67.10
Median hourly rate £35.00 £20.89 £25.00
% change year-on-year +67.54% -16.44% +25.00%

Data Quality
Job Vacancy Trend in Central London

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

Job vacancy trend for Data Quality in Central London

Data Quality
Contractor Daily Rate Trend in Central London

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

Daily rate trend for Data Quality in Central London

Data Quality
Daily Rate Histogram in Central London

Daily rate distribution for jobs citing Data Quality in Central London over the 6 months to 15 July 2020.

Daily rate histogram for Data Quality in Central London

Data Quality
Contractor Hourly Rate Trend in Central London

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

Hourly rate trend for Data Quality in Central London

Data Quality
Contract Job Locations in Central London

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 Central London region over the 6 months to 15 July 2020. 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
City of London +27 22 £550 - 3
Southwark +19 1 £400 -27.27%
Data Quality
London

For the 6 months to 15 July 2020, 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 Central London region with a requirement for Data Quality.

1 14 (51.85%) SQL
1 14 (51.85%) Data Modelling
2 9 (33.33%) Data Warehouse
2 9 (33.33%) Data Governance
2 9 (33.33%) Analytics
3 8 (29.63%) Business Intelligence
4 7 (25.93%) ETL
4 7 (25.93%) Migration
4 7 (25.93%) Data Management
5 6 (22.22%) Agile Software Development
5 6 (22.22%) Azure
5 6 (22.22%) SQL Server
6 5 (18.52%) Oracle
6 5 (18.52%) Microsoft Excel
6 5 (18.52%) Microsoft
6 5 (18.52%) Stakeholder Management
6 5 (18.52%) Finance
6 5 (18.52%) Data Migration
6 5 (18.52%) Data Mapping
6 5 (18.52%) Alteryx
6 5 (18.52%) Power BI
6 5 (18.52%) Power Platform
7 4 (14.81%) Data Lake
7 4 (14.81%) Greenfield Project
7 4 (14.81%) Data Structures
7 4 (14.81%) QA
7 4 (14.81%) Visualisation
7 4 (14.81%) Data Analysis
8 3 (11.11%) SQL Server Integration Services
8 3 (11.11%) Degree

Data Quality
Co-occurring IT Skills in Central London 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 2 (7.41%) Elasticsearch
2 1 (3.70%) IBM Notes
2 1 (3.70%) SAS
Applications
1 5 (18.52%) Microsoft Excel
2 2 (7.41%) Microsoft Office
2 2 (7.41%) MS Visio
3 1 (3.70%) Microsoft PowerPoint
Cloud Services
1 6 (22.22%) Azure
2 5 (18.52%) Power Platform
3 2 (7.41%) Azure Data Factory
3 2 (7.41%) Power Automate
3 2 (7.41%) PowerApps
4 1 (3.70%) AWS
4 1 (3.70%) SuccessFactors
Communications & Networking
1 1 (3.70%) DKIM
1 1 (3.70%) PuTTY
Database & Business Intelligence
1 9 (33.33%) Data Warehouse
2 6 (22.22%) SQL Server
3 5 (18.52%) Power BI
4 4 (14.81%) Data Lake
5 3 (11.11%) Azure SQL Database
5 3 (11.11%) Relational Database
5 3 (11.11%) SQL Server Integration Services
6 2 (7.41%) Amazon DynamoDB
6 2 (7.41%) Apache Cassandra
6 2 (7.41%) Azure SQL Data Warehouse
6 2 (7.41%) BusinessObjects
6 2 (7.41%) CouchDB
6 2 (7.41%) MongoDB
6 2 (7.41%) NoSQL
6 2 (7.41%) PowerPivot
6 2 (7.41%) RDBMS
6 2 (7.41%) Snowflake Schema
6 2 (7.41%) SQL Server Analysis Services
7 1 (3.70%) Big Data
7 1 (3.70%) DB2
General
1 5 (18.52%) Finance
2 2 (7.41%) Retail
3 1 (3.70%) Banking
3 1 (3.70%) Investment Banking
3 1 (3.70%) Legal
3 1 (3.70%) Marketing
3 1 (3.70%) Public Sector
3 1 (3.70%) Publishing
Job Titles
1 12 (44.44%) Analyst
2 9 (33.33%) Data Analyst
3 7 (25.93%) Developer
4 3 (11.11%) Architect
4 3 (11.11%) Consultant
4 3 (11.11%) Data Architect
4 3 (11.11%) SQL Developer
5 2 (7.41%) Analyst Developer
5 2 (7.41%) Business Analyst
5 2 (7.41%) Business Intelligence Analyst
5 2 (7.41%) Business Intelligence Developer
5 2 (7.41%) Business Intelligence Specialist
5 2 (7.41%) Data Consultant
5 2 (7.41%) Data Integration Analyst
5 2 (7.41%) Data Warehouse Architect
5 2 (7.41%) Exchange Architect
5 2 (7.41%) Integration Analyst
5 2 (7.41%) Power BI Analyst
5 2 (7.41%) Senior Analyst
5 2 (7.41%) Senior Data Analyst
Libraries, Frameworks & Software Standards
1 2 (7.41%) Kafka
2 1 (3.70%) .NET
2 1 (3.70%) .NET Framework
2 1 (3.70%) XML
Miscellaneous
1 4 (14.81%) Data Structures
1 4 (14.81%) Greenfield Project
2 3 (11.11%) Analytical Skills
2 3 (11.11%) Management Information System
2 3 (11.11%) Reference Data
3 2 (7.41%) Credit Risk
3 2 (7.41%) User Experience
4 1 (3.70%) Algorithms
4 1 (3.70%) Analytical Mindset
4 1 (3.70%) Derivative
4 1 (3.70%) Enterprise Software
4 1 (3.70%) NHS
4 1 (3.70%) OTC Derivatives
4 1 (3.70%) Self-Motivation
Operating Systems
1 2 (7.41%) Windows
Processes & Methodologies
1 14 (51.85%) Data Modelling
2 9 (33.33%) Analytics
2 9 (33.33%) Data Governance
3 8 (29.63%) Business Intelligence
4 7 (25.93%) Data Management
4 7 (25.93%) ETL
4 7 (25.93%) Migration
5 6 (22.22%) Agile Software Development
6 5 (18.52%) Data Mapping
6 5 (18.52%) Data Migration
6 5 (18.52%) Stakeholder Management
7 4 (14.81%) Data Analysis
7 4 (14.81%) Visualisation
8 3 (11.11%) Data Architecture
8 3 (11.11%) Data Cleansing
8 3 (11.11%) Data Visualisation
8 3 (11.11%) Master Data Management
8 3 (11.11%) Problem-Solving
8 3 (11.11%) SDLC
8 3 (11.11%) Use Case
Programming Languages
1 14 (51.85%) SQL
2 2 (7.41%) Data Analysis Expressions (DAX)
2 2 (7.41%) Python
2 2 (7.41%) R
2 2 (7.41%) T-SQL
2 2 (7.41%) VBA
3 1 (3.70%) C#
3 1 (3.70%) Scala
3 1 (3.70%) VB
3 1 (3.70%) VC++
Qualifications
1 3 (11.11%) Degree
2 1 (3.70%) CISM
2 1 (3.70%) TOGAF Certification
Quality Assurance & Compliance
1 4 (14.81%) QA
2 1 (3.70%) COBIT
2 1 (3.70%) Sarbanes-Oxley
Vendors
1 5 (18.52%) Alteryx
1 5 (18.52%) Microsoft
1 5 (18.52%) Oracle
2 3 (11.11%) Tableau
3 2 (7.41%) SAP
4 1 (3.70%) Lotus
4 1 (3.70%) Netezza
4 1 (3.70%) Sybase
4 1 (3.70%) Teradata
4 1 (3.70%) TIBCO